Proper Job Building Cost Calculator

Previous value: -"AU new-home city: SYD/MEL/BNE/CBR/ADL/PER/HBA/CNS/DRW. AU extensions are national. NZ national guides; AKL/CAN/QLDC/OTA have selected home anchors; Auckland extensions have their own source. IE: DUB retains a 25–35 m² rear-extension reference; other extension sizes/forms/regions use wider Irish builder guides. DE: a broad native-EUR new-house guide; an explicitly matching prefab bungalow can show a manufacturer example (mainland only). FR new homes: ARA/BFC/BRE/CVL/COR/GES/HDF/IDF/NOR/NAQ/OCC/PDL/PAC, FR- prefix accepted; renovation has no city factors. ES broad region. JP: JP-01 through JP-47 or CAPITAL/KINKI/TOKAI/OTHER. CA: province/territory code, e.g. ON/BC/QC. Ontario custom-home anchors extrapolate broadly elsewhere. IN accepts state/UT codes such as IN-KA, IN-AS, IN-HP; these select jurisdiction, not an exact state cost index. US uses state. Do not infer a city from a state or send an address."New value: +"GB extensions: use a stated pricing-region code such as LONDON or NW when no outward postcode was supplied; never invent a postcode. AU new-home city: SYD/MEL/BNE/CBR/ADL/PER/HBA/CNS/DRW. AU extensions are national. NZ national guides; AKL/CAN/QLDC/OTA have selected home anchors; Auckland extensions have their own source. IE: DUB retains a 25–35 m² rear-extension reference; other extension sizes/forms/regions use wider Irish builder guides. DE: a broad native-EUR new-house guide; an explicitly matching prefab bungalow can show a manufacturer example (mainland only). FR new homes: ARA/BFC/BRE/CVL/COR/GES/HDF/IDF/NOR/NAQ/OCC/PDL/PAC, FR- prefix accepted; renovation has no city factors. ES broad region. JP: JP-01 through JP-47 or CAPITAL/KINKI/TOKAI/OTHER. CA: province/territory code, e.g. ON/BC/QC. Ontario custom-home anchors extrapolate broadly elsewhere. IN accepts state/UT codes such as IN-KA, IN-AS, IN-HP; these select jurisdiction, not an exact state cost index. US uses state. Do not infer a city from a state or send an address."

Added value: +{
+  "additionalProperties": false,
+  "description": "GB extensions only. Optional requested extras and work still to price, read from the user's brief. Existing kitchen/steel/access inputs keep their own allowance and must not be duplicated. Unknown items stay unpriced. No extra form steps.",
+  "properties": {
+    "extras": {
+      "default": [],
+      "description": "Only explicitly requested extension extras. Where a researched local construction benchmark already covers an item, it is included once without an extra charge. Otherwise existing provisional app allowances apply. Choose one glazing upgrade. UFH excludes the heat pump. Do not substitute whole-house heating, fencing or landscaping packages for a small requested item.",
+      "items": {
+        "enum": [
+          "underfloor-heating",
+          "glazing-upgrade",
+          "level-access-sliders",
+          "rooflights"
+        ],
+        "type": "string"
+      },
+      "maxItems": 8,
+      "type": "array"
+    },
+    "rooflightCount": {
+      "description": "Known rooflight count only. Do not guess; the local construction benchmark includes one standard unit.",
+      "maximum": 8,
+      "minimum": 1,
+      "type": "integer"
+    },
+    "unpricedWork": {
+      "default": [],
+      "description": "Requested or conditional work outside these allowances. Retain these items without inventing a price. Internal kitchen service connections do not establish a new utility-provider connection.",
+      "items": {
+        "enum": [
+          "heat-pump",
+          "air-conditioning",
+          "drainage-alterations",
+          "reclaimed-brickwork",
+          "tree-removal",
+          "external-tap",
+          "patio",
+          "side-paving",
+          "side-gate",
+          "outside-lighting-data",
+          "asbestos-survey",
+          "professional-fees",
+          "leasehold-consent",
+          "conservation-conditions",
+          "utility-supply",
+          "consumer-unit-check"
+        ],
+        "type": "string"
+      },
+      "maxItems": 20,
+      "type": "array"
+    }
+  },
+  "type": "object"
+}

Added value: +[
+  {
+    "description": "Residential project type supported by the selected country policy.",
+    "enum": [
+      "Combined project",
+      "Rear extension",
+      "Kitchen extension",
+      "Side extension",
+      "Wraparound extension",
+      "Loft conversion",
+      "Barn conversion",
+      "Refurbishment",
+      "Commercial office refurbishment",
+      "New kitchen",
+      "New bathroom",
+      "Office / summerhouse",
+      "Garage conversion",
+      "Basement work / conversion",
+      "Lower-ground floor refurbishment",
+      "New build",
+      "home_addition",
+      "whole_home_remodel",
+      "kitchen_remodel",
+      "bathroom_remodel",
+      "attic_conversion",
+      "garage_conversion",
+      "basement_remodel",
+      "backyard_studio",
+      "new_home_construction"
+    ],
+    "type": "string"
+  },
+  {
+    "enum": [
+      "window_replacement",
+      "heat_pump_installation"
+    ],
+    "type": "string"
+  }
+]

Previous value: -"Residential project type supported by the selected country policy."New value: +"Work type supported by the selected country's catalog. Window replacement is FR/ES; air-to-water heat pump is FR only."

Removed value: -[
-  "Combined project",
-  "Rear extension",
-  "Kitchen extension",
-  "Side extension",
-  "Wraparound extension",
-  "Loft conversion",
-  "Barn conversion",
-  "Refurbishment",
-  "Commercial office refurbishment",
-  "New kitchen",
-  "New bathroom",
-  "Office / summerhouse",
-  "Garage conversion",
-  "Basement work / conversion",
-  "Lower-ground floor refurbishment",
-  "New build",
-  "home_addition",
-  "whole_home_remodel",
-  "kitchen_remodel",
-  "bathroom_remodel",
-  "attic_conversion",
-  "garage_conversion",
-  "basement_remodel",
-  "backyard_studio",
-  "new_home_construction"
-]

Removed value: -"string"

Added value: +{
+  "description": "CA cosmetic work only: explicit Toronto/GTA (ON) or Vancouver (BC) reference, never a province-wide multiplier.",
+  "enum": [
+    "toronto_gta",
+    "vancouver"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "Vancouver cosmetic flooring only: remove existing flooring? Unknown widens the removal allowance; stairs and major subfloor repair remain separate.",
+  "type": "boolean"
+}

Added value: +{
+  "description": "FR air-to-water heat pump only: installer-confirmed kW band. Do not infer capacity from floor area.",
+  "enum": [
+    "under_5",
+    "from_5_to_7",
+    "over_7"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "FR air-to-water heat pump only: also supplies domestic hot water? Unknown retains both source possibilities.",
+  "type": "boolean"
+}

Added value: +{
+  "description": "FR/ES PVC window replacement only: actual windows replaced in existing openings. Never derive the count from floor area.",
+  "maximum": 100,
+  "minimum": 1,
+  "type": "integer"
+}

Added value: +{
+  "enum": [
+    "detached_house",
+    "apartment"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "AU/NZ/IE kitchen or bathroom work only: actual rooms being renovated, never inferred from floor area or combined bathroom/WC counts.",
+  "maximum": 5,
+  "minimum": 1,
+  "type": "integer"
+}

Added value: +{
+  "description": "AU/NZ/IE room work: cosmetic refresh or replacement of fittings and finishes. Layout/service changes use workDetails.serviceRelocation; do not count ordinary installation twice.",
+  "enum": [
+    "refresh",
+    "replace"
+  ],
+  "type": "string"
+}

Added value: +{
+  "enum": [
+    "compact",
+    "typical",
+    "large"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "IN new RCC home only: own local builder package anchors. City and supplied state must agree. Rural masonry/shelters use their own local-method model, never a metro package.",
+  "enum": [
+    "bengaluru",
+    "delhi"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "JP selected work: wall-mounted indoor/outdoor pairs supplied and fitted; existing balcony or ground-level outdoor location. Central systems, crane/high-access work and new circuits are separate.",
+  "maximum": 20,
+  "minimum": 0,
+  "type": "integer"
+}

Added value: +{
+  "description": "JP selected work: wooden floor area in m2. Exclude the area receiving new tatami.",
+  "maximum": 10000,
+  "minimum": 0,
+  "type": "number"
+}

Added value: +{
+  "description": "JP selected work: complete kitchens supplied and fitted, counted once instead of a whole-home area-rate allowance.",
+  "maximum": 5,
+  "minimum": 0,
+  "type": "integer"
+}

Added value: +{
+  "description": "JP selected work: fitting installation at existing power points. User-supplied ordinary fitting; new wiring or luxury chandelier work excluded.",
+  "maximum": 100,
+  "minimum": 0,
+  "type": "integer"
+}

Added value: +{
+  "description": "JP selected work only: actual full-size mats being replaced, not room-area tatami. Never derive this count from layout or floor area.",
+  "maximum": 100,
+  "minimum": 0,
+  "type": "integer"
+}

Added value: +{
+  "description": "JP selected work: wall/ceiling surface area in m2 being repapered; never substitute floor area.",
+  "maximum": 10000,
+  "minimum": 0,
+  "type": "number"
+}

Previous value: -[
-  "refresh",
-  "partial",
-  "full",
-  "skeleton"
-]New value: +[
+  "refresh",
+  "partial",
+  "full",
+  "skeleton",
+  "selected"
+]

Added value: +{
+  "description": "DE slab/basement; NZ slab/timber piles/engineered piles. Ordinary baseline included once; foundation and adverse-ground allowances overlap. DE basement fitting out is separate.",
+  "enum": [
+    "slab",
+    "basement",
+    "timber_piles",
+    "engineered_piles"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "DE only: masonry or timber-frame house; timber comparison widens a provisional native-EUR guide, not a calibrated quote.",
+  "enum": [
+    "masonry",
+    "timber_frame"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "AU new homes only: select the actual wall construction, matched to BMT house type/storeys/finish. Unknown uses the existing construction envelope.",
+  "enum": [
+    "weatherboard",
+    "brick_veneer",
+    "full_brick"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "FR/ES/CA renovation: apartment/private interior versus detached home. Changes relevant questions and scope boundaries; common-building exterior/structure is separate.",
+  "enum": [
+    "detached_house",
+    "apartment"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "CA cosmetic refresh only: installed painting, flooring, or both. Unknown assumes both; full/partial renovations use their own scope.",
+  "enum": [
+    "paint",
+    "flooring",
+    "paint_and_flooring"
+  ],
+  "type": "string"
+}

Added value: +{
+  "additionalProperties": false,
+  "description": "Optional extra scope for supported overseas work: an occupied home, additional service relocation, lift/shared-area protection, an enlarged extension opening, excluded German painting/flooring, or physical new-home utility connections. ES also accepts access restrictions and whole-home structuralWork. Send only explicitly requested facts. Ordinary installation is already in the country baseline. Never apply these to UK work or copy assumptions into answers; omit extras already included. Missing answers never block a price.",
+  "properties": {
+    "access": {
+      "enum": [
+        "straightforward",
+        "constrained",
+        "stairs_only"
+      ],
+      "type": "string"
+    },
+    "finalDecoration": {
+      "type": "boolean"
+    },
+    "liftProtection": {
+      "type": "boolean"
+    },
+    "occupied": {
+      "type": "boolean"
+    },
+    "serviceRelocation": {
+      "type": "boolean"
+    },
+    "structuralOpening": {
+      "type": "boolean"
+    },
+    "structuralWork": {
+      "type": "boolean"
+    },
+    "utilityConnections": {
+      "type": "boolean"
+    }
+  },
+  "type": "object"
+}

Added value: +{
+  "description": "Supplier-confirmed VAT treatment of the priced construction scope. Never infer zero/reduced rating from a project label or registration. Mixed-rate work stays unconfirmed until split; separate fees/goods may differ.",
+  "enum": [
+    "unconfirmed",
+    "standard_20",
+    "qualifying_conversion_5",
+    "qualifying_empty_home_5",
+    "qualifying_new_dwelling_0",
+    "mixed"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "Supplier-confirmed VAT treatment of the priced construction scope. Never infer zero/reduced rating from a project label or registration. Mixed-rate work stays unconfirmed until split; separate fees/goods may differ.",
+  "enum": [
+    "unconfirmed",
+    "standard_20",
+    "qualifying_conversion_5",
+    "qualifying_empty_home_5",
+    "qualifying_new_dwelling_0",
+    "mixed"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "Supplier-confirmed VAT treatment of the priced construction scope. Never infer zero/reduced rating from a project label or registration. Mixed-rate work stays unconfirmed until split; separate fees/goods may differ.",
+  "enum": [
+    "unconfirmed",
+    "standard_20",
+    "qualifying_conversion_5",
+    "qualifying_empty_home_5",
+    "qualifying_new_dwelling_0",
+    "mixed"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "Supplier-confirmed VAT treatment of the priced construction scope. Never infer zero/reduced rating from a project label or registration. Mixed-rate work stays unconfirmed until split; separate fees/goods may differ.",
+  "enum": [
+    "unconfirmed",
+    "standard_20",
+    "qualifying_conversion_5",
+    "qualifying_empty_home_5",
+    "qualifying_new_dwelling_0",
+    "mixed"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "Supplier-confirmed VAT treatment of the priced construction scope. Never infer zero/reduced rating from a project label or registration. Mixed-rate work stays unconfirmed until split; separate fees/goods may differ.",
+  "enum": [
+    "unconfirmed",
+    "standard_20",
+    "qualifying_conversion_5",
+    "qualifying_empty_home_5",
+    "qualifying_new_dwelling_0",
+    "mixed"
+  ],
+  "type": "string"
+}

Previous value: -"Two-letter country code. GB/UK and US/USA have existing guide policies; AU/NZ have limited residential benchmarks; IE has Dublin rear-extension project ranges; DE has named prefabricated bungalow examples only, not project estimates. FR has new homes and whole-home renovation; ES whole-home/kitchen/bathroom renovation; CA new homes and whole-home renovation. JP new homes, whole-home/akiya renovation and kitchen/bathroom work. IN rural shelters, masonry/RCC new homes and whole-home renovation with separate user-priced land/lease costs. Other countries return unpriced quantities. EU needs a member country. SA means Saudi Arabia; ZA is South Africa. Units never determine country."New value: +"Two-letter country code. GB/UK and US/USA have existing guide policies; AU/NZ have limited residential benchmarks; IE has extension guides and matching Dublin project ranges; DE has rough new-home guides and separate unscaled manufacturer examples. FR has new homes and whole-home renovation; ES whole-home/kitchen/bathroom renovation; CA new homes and whole-home renovation. JP new homes, whole-home/akiya renovation and kitchen/bathroom work. IN rural shelters, masonry/RCC new homes and whole-home renovation with separate user-priced land/lease costs. Other countries return unpriced quantities. EU needs a member country. SA means Saudi Arabia; ZA is South Africa. Units never determine country."

Previous value: -[
-  "m",
-  "mm",
-  "cm",
-  "ft",
-  "in",
-  "yd",
-  "m2",
-  "sq_m",
-  "ft2",
-  "sq_ft",
-  "yd2",
-  "tsubo",
-  "m3",
-  "ft3",
-  "yd3",
-  "number",
-  "item",
-  "set",
-  "unknown"
-]New value: +[
+  "m",
+  "mm",
+  "cm",
+  "ft",
+  "in",
+  "yd",
+  "m2",
+  "sq_m",
+  "ft2",
+  "sq_ft",
+  "yd2",
+  "tsubo",
+  "m3",
+  "ft3",
+  "yd3",
+  "number",
+  "item",
+  "set",
+  "unknown",
+  "tatami",
+  "jo",
+  "jou",
+  "畳",
+  "帖"
+]

Added value: +{
+  "description": "For tatami area only: use a supplied mat convention; otherwise use the approximate listing convention. Physical mat counts use item/number, not an area unit.",
+  "enum": [
+    "listing",
+    "edoma",
+    "kyoma",
+    "chukyoma",
+    "danchima"
+  ],
+  "type": "string"
+}

Previous value: -[
-  "m",
-  "mm",
-  "cm",
-  "ft",
-  "in",
-  "yd",
-  "m2",
-  "sq_m",
-  "ft2",
-  "sq_ft",
-  "yd2",
-  "tsubo",
-  "m3",
-  "ft3",
-  "yd3",
-  "number",
-  "item",
-  "set",
-  "unknown"
-]New value: +[
+  "m",
+  "mm",
+  "cm",
+  "ft",
+  "in",
+  "yd",
+  "m2",
+  "sq_m",
+  "ft2",
+  "sq_ft",
+  "yd2",
+  "tsubo",
+  "m3",
+  "ft3",
+  "yd3",
+  "number",
+  "item",
+  "set",
+  "unknown",
+  "tatami",
+  "jo",
+  "jou",
+  "畳",
+  "帖"
+]

Added value: +{
+  "description": "Stated Japanese layout, e.g. 1R, 1K, 1DK, 1LDK, 2LDK, 2SLDK or 2LDK+S. Optional; unfamiliar labels do not block the estimate. The number counts habitable rooms excluding K/DK/LDK; S/N denotes service/storage rooms, not certified bedrooms. Never derive floor area, bathrooms, replacement mat counts or the number of rooms being renovated from layout alone.",
+  "maxLength": 80,
+  "minLength": 1,
+  "type": "string"
+}

Previous value: -"AU/NZ/IE/DE only. Send confirmed facts; never copy provisional assumptions as user answers. AU adds counted wet fitout; NZ wet-area rates include wet scope. IE uses a fixed 25–35 m² project range, not a scalable per-m² rate. DE examples are not scaled to the user's area."New value: +"AU/NZ/IE/DE only. Send confirmed facts; never copy provisional assumptions as user answers. AU uses separate project/custom and one/two-storey house anchors, plus counted extension fitout. NZ wet-area extensions count the first standard wet room once; additional declared rooms use local references. IE uses a fixed Dublin bucket only for matching scope; other extensions use a broader Irish build guide. DE has a broad new-home guide; named manufacturer examples are never scaled to the user's area."

Added value: +{
+  "enum": [
+    "straightforward",
+    "constrained",
+    "remote"
+  ],
+  "type": "string"
+}

Added value: +{
+  "type": "boolean"
+}

Previous value: -"AU project homes require gross floor area including covered unenclosed space. DE bungalow examples use living floor area (Wohnfläche); never substitute gross area or footprint."New value: +"AU uses gross floor area including covered unenclosed space; known internal/living area retains its measurement and widens an inferred GFA allowance. DE uses living floor area (Wohnfläche); gross area uses a wider guide and is never asserted equivalent. Manufacturer examples require the stated living area."

Added value: +{
+  "type": "boolean"
+}

Previous value: -"IE: the Dublin range covers rear extensions only. Confirm form when using home_addition."New value: +"IE: rear, side or wraparound; affects the guide. Send total floor area across all storeys, not the footprint."

Added value: +{
+  "enum": [
+    "ordinary",
+    "bushfire",
+    "cyclone",
+    "seismic"
+  ],
+  "type": "string"
+}

Added value: +{
+  "type": "boolean"
+}

Added value: +{
+  "enum": [
+    "ordinary",
+    "sloping",
+    "difficult_ground",
+    "liquefaction"
+  ],
+  "type": "string"
+}

Added value: +{
+  "type": "boolean"
+}

Previous value: -"FR/CA: optional declared work extent, access, climate, ground, construction and upgrade facts. Ordinary local code/climate provisions are already in the base; exceptional work uses disclosed broad allowances. Never infer permafrost from country or remote access from rural location. ES accepts workExtent only. Missing details widen the price; never require a questionnaire."New value: +"FR/CA: optional declared work extent, access, climate, ground, construction and upgrade facts. AlreadyIncluded flags suppress the corresponding allowance only when the supplied scope already contains that work. Ordinary local code/climate provisions are already in the base. Never infer permafrost from country or remote access from rural location. ES accepts workExtent only. Missing details widen the price; never require a questionnaire."

Added value: +{
+  "type": "boolean"
+}

Added value: +{
+  "type": "boolean"
+}

Added value: +{
+  "type": "boolean"
+}

Added value: +{
+  "type": "boolean"
+}

Previous value: -"AU project-home city: SYD/MEL/BNE/CBR/ADL/PER/HBA/CNS/DRW. AU extensions are national. NZ homes: AKL/CAN/QLDC/OTA; NZ extensions: AKL only. IE extension guide: DUB only (Dublin, Republic of Ireland). DE examples exclude islands: use ISLANDS if relevant; no regional adjustment. FR new homes: ARA/BFC/BRE/CVL/COR/GES/HDF/IDF/NOR/NAQ/OCC/PDL/PAC, FR- prefix accepted; renovation has no city factors. ES broad region. JP: JP-01 through JP-47 or CAPITAL/KINKI/TOKAI/OTHER. CA: province/territory code, e.g. ON/BC/QC. Ontario custom-home anchors extrapolate broadly elsewhere. IN accepts state/UT codes such as IN-KA, IN-AS, IN-HP; these select jurisdiction, not an exact state cost index. US uses state. Do not infer a city from a state or send an address."New value: +"AU new-home city: SYD/MEL/BNE/CBR/ADL/PER/HBA/CNS/DRW. AU extensions are national. NZ national guides; AKL/CAN/QLDC/OTA have selected home anchors; Auckland extensions have their own source. IE: DUB retains a 25–35 m² rear-extension reference; other extension sizes/forms/regions use wider Irish builder guides. DE: a broad native-EUR new-house guide; an explicitly matching prefab bungalow can show a manufacturer example (mainland only). FR new homes: ARA/BFC/BRE/CVL/COR/GES/HDF/IDF/NOR/NAQ/OCC/PDL/PAC, FR- prefix accepted; renovation has no city factors. ES broad region. JP: JP-01 through JP-47 or CAPITAL/KINKI/TOKAI/OTHER. CA: province/territory code, e.g. ON/BC/QC. Ontario custom-home anchors extrapolate broadly elsewhere. IN accepts state/UT codes such as IN-KA, IN-AS, IN-HP; these select jurisdiction, not an exact state cost index. US uses state. Do not infer a city from a state or send an address."

Previous value: -"Only known project facts. All area fields share areaUnit. JP also accepts tsubo (坪); one tsubo is 400/121 square metres. Prefer worksLevel over legacy finishBand/finishLevel."New value: +"Only known project facts. All area fields share areaUnit. JP accepts tsubo (坪), tatami/jo/jou/畳/帖. Tsubo is 400/121 m2; tatami defaults to approximately 1.62 m2. Room labels such as LDK 12畳 are that room's area, not the whole apartment. Use dimensioned m2 where supplied. Physical replacement-mat counts are not floor areas. Prefer worksLevel over legacy finishBand/finishLevel."

Previous value: -[
-  {
-    "description": "Unit for approximateSize. GB defaults to sq_m and US defaults to sq_ft. Common m2 and ft2 forms are accepted.",
-    "enum": [
-      "sq_m",
-      "sq m",
-      "m2",
-      "m^2",
-      "m²",
-      "sqm",
-      "square_metres",
-      "square_meters",
-      "square metres",
-      "square meters",
-      "sq_ft",
-      "sq ft",
-      "ft2",
-      "ft^2",
-      "ft²",
-      "sqft",
-      "sf",
-      "square_feet",
-      "square feet"
-    ],
-    "type": "string"
-  },
-  {
-    "const": "tsubo",
-    "type": "string"
-  }
-]New value: +[
+  {
+    "description": "Unit for approximateSize. GB defaults to sq_m and US defaults to sq_ft. Common m2 and ft2 forms are accepted.",
+    "enum": [
+      "sq_m",
+      "sq m",
+      "m2",
+      "m^2",
+      "m²",
+      "sqm",
+      "square_metres",
+      "square_meters",
+      "square metres",
+      "square meters",
+      "sq_ft",
+      "sq ft",
+      "ft2",
+      "ft^2",
+      "ft²",
+      "sqft",
+      "sf",
+      "square_feet",
+      "square feet"
+    ],
+    "type": "string"
+  },
+  {
+    "enum": [
+      "tsubo",
+      "tatami",
+      "jo",
+      "jou",
+      "畳",
+      "帖"
+    ],
+    "type": "string"
+  }
+]

Added value: +{
+  "description": "JP tatami area only. Optional listing, edoma, kyoma, chukyoma or danchima convention, only if explicitly known. Otherwise the calculator uses an approximate 1.62 m2 per tatami listing basis; never infer a physical mat type from prefecture or apartment type.",
+  "enum": [
+    "listing",
+    "edoma",
+    "kyoma",
+    "chukyoma",
+    "danchima"
+  ],
+  "type": "string"
+}

Previous value: -"Two-letter country code. GB/UK and US/USA have existing guide policies; AU/NZ have limited residential benchmarks; IE has Dublin rear-extension project ranges; DE has named prefabricated bungalow examples only, not project estimates. FR has new homes and whole-home renovation; ES whole-home/kitchen/bathroom renovation; CA new homes and whole-home renovation. JP new homes and residential renovation/akiya. IN rural shelters, masonry/RCC new homes and whole-home renovation with separate user-priced land/lease costs. Other countries return unpriced quantities. EU needs a member country. SA means Saudi Arabia; ZA is South Africa. Units never determine country."New value: +"Two-letter country code. GB/UK and US/USA have existing guide policies; AU/NZ have limited residential benchmarks; IE has Dublin rear-extension project ranges; DE has named prefabricated bungalow examples only, not project estimates. FR has new homes and whole-home renovation; ES whole-home/kitchen/bathroom renovation; CA new homes and whole-home renovation. JP new homes, whole-home/akiya renovation and kitchen/bathroom work. IN rural shelters, masonry/RCC new homes and whole-home renovation with separate user-priced land/lease costs. Other countries return unpriced quantities. EU needs a member country. SA means Saudi Arabia; ZA is South Africa. Units never determine country."

Added value: +{
+  "description": "Optional explicitly evidenced containing scope, e.g. kitchen inside whole_home. Supply only when the drawing/brief establishes containment. Keep separate buildings unparented. Never use this to force unrelated floor areas into the main project.",
+  "pattern": "^[a-zA-Z0-9_-]{1,80}$",
+  "type": "string"
+}

Added value: +{
+  "description": "Existing bathroom type; conventional tiled-bath conversion differs from replacing a unit bath. Unknown stays optional.",
+  "enum": [
+    "unit_bath",
+    "conventional_bath"
+  ],
+  "type": "string"
+}

Added value: +{
+  "description": "Kitchen/bathroom renovation only: number of rooms the user wants worked on. Default one if unknown. Do not infer bathrooms from a combined bathroom/WC drawing count or building floor area.",
+  "maximum": 20,
+  "minimum": 1,
+  "type": "integer"
+}

Added value: +"Human-readable work label in the conversation language. Keep literal drawing wording in sourceReference."

Previous value: -"Separate construction entity, e.g. rear_extension or garage. Do not merge separate buildings."New value: +"Stable separate building/scope ID. For main residential pricing use whole_home for whole-home renovation, new_home for a new house, home_addition/rear_extension for an addition, kitchen or bathroom for a single-room remodel. Keep garages, annexes and separate buildings separate; do not invent a primary-scope label or merge areas."

Added value: +"Human-readable issue in the conversation language; preserve literal evidence in sourceReference."

Previous value: -"Two-letter country code. GB/UK and US/USA have existing guide policies; AU/NZ have limited residential benchmarks; IE has Dublin rear-extension project ranges; DE has named prefabricated bungalow examples only, not project estimates. FR has new homes and whole-home renovation; ES whole-home/kitchen/bathroom renovation; CA new homes and whole-home renovation. JP new homes and residential renovation/akiya. Other countries return unpriced quantities. EU needs a member country. SA means Saudi Arabia; ZA is South Africa. Units never determine country."New value: +"Two-letter country code. GB/UK and US/USA have existing guide policies; AU/NZ have limited residential benchmarks; IE has Dublin rear-extension project ranges; DE has named prefabricated bungalow examples only, not project estimates. FR has new homes and whole-home renovation; ES whole-home/kitchen/bathroom renovation; CA new homes and whole-home renovation. JP new homes and residential renovation/akiya. IN rural shelters, masonry/RCC new homes and whole-home renovation with separate user-priced land/lease costs. Other countries return unpriced quantities. EU needs a member country. SA means Saudi Arabia; ZA is South Africa. Units never determine country."

Added value: +{
+  "additionalProperties": false,
+  "description": "IN only: optional known construction/site facts. Simple local-material hut, durable rural masonry and RCC home have distinct INR models. Rural never implies poor road access. State alone does not prove climate/hazard. Ordinary construction is counted once; only stated extra protection is added. Missing facts give a rough price. Rates/allowances are estimates, not safety certification or state cost schedules.",
+  "properties": {
+    "access": {
+      "enum": [
+        "normal",
+        "remote_road",
+        "no_vehicle_access",
+        "seasonal_or_island"
+      ],
+      "type": "string"
+    },
+    "climate": {
+      "enum": [
+        "ordinary",
+        "hot_dry",
+        "humid_monsoon",
+        "cold_snow"
+      ],
+      "type": "string"
+    },
+    "climateAlreadyIncluded": {
+      "type": "boolean"
+    },
+    "construction": {
+      "enum": [
+        "vernacular_hut",
+        "rural_masonry",
+        "rcc_home"
+      ],
+      "type": "string"
+    },
+    "hazard": {
+      "enum": [
+        "ordinary",
+        "enhanced_seismic",
+        "cyclone_exposed",
+        "flood_exposed"
+      ],
+      "type": "string"
+    },
+    "hazardAlreadyIncluded": {
+      "type": "boolean"
+    },
+    "landUse": {
+      "enum": [
+        "residential",
+        "agricultural",
+        "protected_or_tribal",
+        "unknown"
+      ],
+      "type": "string"
+    },
+    "setting": {
+      "enum": [
+        "rural",
+        "town",
+        "metro",
+        "high_cost_metro"
+      ],
+      "type": "string"
+    },
+    "siteConditions": {
+      "enum": [
+        "ordinary",
+        "difficult_ground"
+      ],
+      "type": "string"
+    },
+    "workExtent": {
+      "enum": [
+        "refresh",
+        "partial",
+        "full"
+      ],
+      "type": "string"
+    }
+  },
+  "type": "object"
+}

Added value: +{
+  "additionalProperties": false,
+  "description": "IN only. Optional separate plot and user-supplied INR purchase price/rate, upfront lease premium, yearly rent and fees. Land area never becomes building floor area. Unknown land prices stay unpriced without blocking the construction estimate. Official valuation is a reference, never treated as market purchase cost. No generic bigha/ground/marla conversion; ask for the local conversion. State rules/title/lease rights need local verification.",
+  "properties": {
+    "annualRent": {
+      "additionalProperties": false,
+      "properties": {
+        "high": {
+          "maximum": 1000000000000,
+          "minimum": 0,
+          "type": "number"
+        },
+        "low": {
+          "maximum": 1000000000000,
+          "minimum": 0,
+          "type": "number"
+        }
+      },
+      "required": [
+        "low",
+        "high"
+      ],
+      "type": "object"
+    },
+    "areaUnit": {
+      "enum": [
+        "sq_m",
+        "sq_ft",
+        "acre",
+        "hectare"
+      ],
+      "type": "string"
+    },
+    "fees": {
+      "additionalProperties": false,
+      "properties": {
+        "high": {
+          "maximum": 1000000000000,
+          "minimum": 0,
+          "type": "number"
+        },
+        "low": {
+          "maximum": 1000000000000,
+          "minimum": 0,
+          "type": "number"
+        }
+      },
+      "required": [
+        "low",
+        "high"
+      ],
+      "type": "object"
+    },
+    "leasePremium": {
+      "additionalProperties": false,
+      "properties": {
+        "high": {
+          "maximum": 1000000000000,
+          "minimum": 0,
+          "type": "number"
+        },
+        "low": {
+          "maximum": 1000000000000,
+          "minimum": 0,
+          "type": "number"
+        }
+      },
+      "required": [
+        "low",
+        "high"
+      ],
+      "type": "object"
+    },
+    "plotArea": {
+      "exclusiveMinimum": 0,
+      "maximum": 1000000000,
+      "type": "number"
+    },
+    "priceBasis": {
+      "enum": [
+        "asking",
+        "agreed",
+        "official_valuation"
+      ],
+      "type": "string"
+    },
+    "purchasePrice": {
+      "additionalProperties": false,
+      "properties": {
+        "high": {
+          "maximum": 1000000000000,
+          "minimum": 0,
+          "type": "number"
+        },
+        "low": {
+          "maximum": 1000000000000,
+          "minimum": 0,
+          "type": "number"
+        }
+      },
+      "required": [
+        "low",
+        "high"
+      ],
+      "type": "object"
+    },
+    "purchaseRate": {
+      "additionalProperties": false,
+      "properties": {
+        "high": {
+          "maximum": 10000000000,
+          "minimum": 0,
+          "type": "number"
+        },
+        "low": {
+          "maximum": 10000000000,
+          "minimum": 0,
+          "type": "number"
+        },
+        "unit": {
+          "enum": [
+            "sq_m",
+            "sq_ft",
+            "acre",
+            "hectare"
+          ],
+          "type": "string"
+        }
+      },
+      "required": [
+        "low",
+        "high",
+        "unit"
+      ],
+      "type": "object"
+    },
+    "tenure": {
+      "enum": [
+        "owned",
+        "purchase",
+        "leasehold"
+      ],
+      "type": "string"
+    }
+  },
+  "required": [
+    "tenure"
+  ],
+  "type": "object"
+}

Previous value: -"Card and follow-up language from the conversation, e.g. fr-CA, es, de, it, pt or ja. English fallback for unsupported languages. Never infer country, currency or units from language."New value: +"Card and follow-up language from the conversation, e.g. fr-CA, es, de, it, pt, ja or hi. English fallback for unsupported languages. Never infer country, currency or units from language."

Previous value: -"AU project-home city: SYD/MEL/BNE/CBR/ADL/PER/HBA/CNS/DRW. AU extensions are national. NZ homes: AKL/CAN/QLDC/OTA; NZ extensions: AKL only. IE extension guide: DUB only (Dublin, Republic of Ireland). DE examples exclude islands: use ISLANDS if relevant; no regional adjustment. FR new homes: ARA/BFC/BRE/CVL/COR/GES/HDF/IDF/NOR/NAQ/OCC/PDL/PAC, FR- prefix accepted; renovation has no city factors. ES broad region. JP: JP-01 through JP-47 or CAPITAL/KINKI/TOKAI/OTHER. CA: province/territory code, e.g. ON/BC/QC. Ontario custom-home anchors extrapolate broadly elsewhere. US uses state. Do not infer a city from a state or send an address."New value: +"AU project-home city: SYD/MEL/BNE/CBR/ADL/PER/HBA/CNS/DRW. AU extensions are national. NZ homes: AKL/CAN/QLDC/OTA; NZ extensions: AKL only. IE extension guide: DUB only (Dublin, Republic of Ireland). DE examples exclude islands: use ISLANDS if relevant; no regional adjustment. FR new homes: ARA/BFC/BRE/CVL/COR/GES/HDF/IDF/NOR/NAQ/OCC/PDL/PAC, FR- prefix accepted; renovation has no city factors. ES broad region. JP: JP-01 through JP-47 or CAPITAL/KINKI/TOKAI/OTHER. CA: province/territory code, e.g. ON/BC/QC. Ontario custom-home anchors extrapolate broadly elsewhere. IN accepts state/UT codes such as IN-KA, IN-AS, IN-HP; these select jurisdiction, not an exact state cost index. US uses state. Do not infer a city from a state or send an address."

Previous value: -"Level of materials, finishes and detailing: Budget, Standard, Premium or Luxury. US/FR/ES/CA/JP Luxury returns a wide rough starting range, not a ceiling; bespoke details need individual pricing. Other markets retain their published reference limits. This does not change the amount of work."New value: +"Level of materials, finishes and detailing: Budget, Standard, Premium or Luxury. US/FR/ES/CA/JP/IN Luxury returns a wide rough starting range, not a ceiling; bespoke details need individual pricing. Other markets retain their published reference limits. This does not change the amount of work."