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--- title: BuildProperties description: A config plugin that allows customizing native build properties during prebuild. sourceCodeUrl: https://github.com/expo/expo/tree/sdk-51/packages/expo-build-properties packageName: expo-build-properties platforms: ["android", "ios", "tvos"] --- `expo-build-properties` is a [config plugin](/config-plugins/introduction/) configuring the native build properties of your **android/gradle.properties** and **ios/Podfile.properties.json** directories during [Prebuild](/workflow/prebuild). > **info** This config plugin configures how [Prebuild command](/workflow/prebuild) generates the native **android** and **ios** directories > and therefore cannot be used with projects that don't run `npx expo prebuild` (bare projects). ## Installation ## Usage <Tabs> <Tab label="app.json"> ```json app.json|collapseHeight=450 { "expo": { "plugins": [ [ "expo-build-properties", { "android": { "compileSdkVersion": 34, "targetSdkVersion": 34, "buildToolsVersion": "34.0.0" }, "ios": { "deploymentTarget": "13.4" } } ] ] } } ``` </Tab> <Tab label="app.config.js"> ```js app.config.js|collapseHeight=450 expo: { plugins: [ [ 'expo-build-properties', { android: { compileSdkVersion: 34, targetSdkVersion: 34, buildToolsVersion: '34.0.0', }, ios: { deploymentTarget: '13.4', }, }, ], ], }, }; ``` </Tab> </Tabs> ### All configurable properties [`PluginConfigType`](#pluginconfigtype) interface represents currently available configuration properties. ## API