diff --git a/buildSrc/src/main/java/org/springframework/boot/build/autoconfigure/DocumentAutoConfigurationClasses.java b/buildSrc/src/main/java/org/springframework/boot/build/autoconfigure/DocumentAutoConfigurationClasses.java
index 3eb1a4b36c1..4d34cba44d9 100644
--- a/buildSrc/src/main/java/org/springframework/boot/build/autoconfigure/DocumentAutoConfigurationClasses.java
+++ b/buildSrc/src/main/java/org/springframework/boot/build/autoconfigure/DocumentAutoConfigurationClasses.java
@@ -30,8 +30,8 @@ import java.util.stream.Collectors;
 
 import org.gradle.api.DefaultTask;
 import org.gradle.api.Task;
+import org.gradle.api.file.DirectoryProperty;
 import org.gradle.api.file.FileCollection;
-import org.gradle.api.file.RegularFileProperty;
 import org.gradle.api.tasks.InputFiles;
 import org.gradle.api.tasks.OutputDirectory;
 import org.gradle.api.tasks.TaskAction;
@@ -57,7 +57,7 @@ public abstract class DocumentAutoConfigurationClasses extends DefaultTask {
 	}
 
 	@OutputDirectory
-	public abstract RegularFileProperty getOutputDir();
+	public abstract DirectoryProperty getOutputDir();
 
 	@TaskAction
 	void documentAutoConfigurationClasses() throws IOException {
diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/build.gradle b/spring-boot-project/spring-boot-actuator-autoconfigure/build.gradle
index 7db9b3e4c79..2a0f9500f79 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/build.gradle
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/build.gradle
@@ -207,7 +207,7 @@ def documentationTest = tasks.register("documentationTest", Test) {
 	filter {
 		includeTestsMatching("org.springframework.boot.actuate.autoconfigure.endpoint.web.documentation.*")
 	}
-	outputs.dir("${buildDir}/generated-snippets")
+	outputs.dir(layout.buildDirectory.dir("generated-snippets"))
 	develocity {
 		predictiveTestSelection {
 			enabled = false
@@ -225,12 +225,12 @@ def antoraActuatorRestApiLocalAggregateContent  = tasks.register("antoraActuator
 
 def antoraActuatorRestApiAggregateContent = tasks.register("antoraActuatorRestApiAggregateContent", Zip) {
 	dependsOn documentationTest
-	inputs.dir("${buildDir}/generated-snippets")
+	inputs.dir(layout.buildDirectory.dir("generated-snippets"))
 		.withPathSensitivity(PathSensitivity.RELATIVE)
 		.withPropertyName("generatedSnippets")
 	destinationDirectory = layout.buildDirectory.dir('generated/docs/antora-content')
 	archiveClassifier = "actuator-rest-api-aggregate-content"
-	from("${buildDir}/generated-snippets") {
+	from(layout.buildDirectory.dir("generated-snippets")) {
 		into "modules/api/partials/rest/actuator"
 	}
 }
diff --git a/spring-boot-project/spring-boot-devtools/build.gradle b/spring-boot-project/spring-boot-devtools/build.gradle
index d736bf5a910..eb4fe1b6373 100644
--- a/spring-boot-project/spring-boot-devtools/build.gradle
+++ b/spring-boot-project/spring-boot-devtools/build.gradle
@@ -84,7 +84,7 @@ dependencies {
 }
 
 task syncIntTestDependencies(type: Sync) {
-	destinationDir = file("${buildDir}/dependencies")
+	destinationDir = file(layout.buildDirectory.dir("dependencies"))
 	from {
 		configurations.intTestDependencies
 	}
diff --git a/spring-boot-project/spring-boot-docs/build.gradle b/spring-boot-project/spring-boot-docs/build.gradle
index 502450e1dbc..13aa4e263b6 100644
--- a/spring-boot-project/spring-boot-docs/build.gradle
+++ b/spring-boot-project/spring-boot-docs/build.gradle
@@ -211,7 +211,7 @@ task aggregatedJavadoc(type: Javadoc) {
 		dependsOn publishedProjects.javadoc
 		source publishedProjects.javadoc.source
 		classpath = project.files(publishedProjects.javadoc.classpath)
-		destinationDir = project.file "${buildDir}/docs/javadoc"
+		destinationDir = project.file(project.layout.buildDirectory.dir("docs/javadoc"))
 		options {
 			author = true
 			docTitle = "Spring Boot ${project.version} API"
@@ -244,33 +244,33 @@ task aggregatedJavadoc(type: Javadoc) {
 
 task documentTestSlices(type: org.springframework.boot.build.test.autoconfigure.DocumentTestSlices) {
 	testSlices = configurations.testSlices
-	outputFile = file("${buildDir}/generated/docs/test-auto-configuration/documented-slices.adoc")
+	outputFile = layout.buildDirectory.file("generated/docs/test-auto-configuration/documented-slices.adoc")
 }
 
 task documentStarters(type: org.springframework.boot.build.starters.DocumentStarters) {
-	outputDir = file("${buildDir}/generated/docs/using/starters/")
+	outputDir = layout.buildDirectory.dir("generated/docs/using/starters/")
 }
 
 task documentAutoConfigurationClasses(type: org.springframework.boot.build.autoconfigure.DocumentAutoConfigurationClasses) {
 	autoConfiguration = configurations.autoConfiguration
-	outputDir = file("${buildDir}/generated/docs/auto-configuration-classes/documented-auto-configuration-classes/")
+	outputDir = layout.buildDirectory.dir("generated/docs/auto-configuration-classes/documented-auto-configuration-classes/")
 }
 
 task documentDependencyVersionCoordinates(type: org.springframework.boot.build.constraints.DocumentConstrainedVersions) {
 	dependsOn dependencyVersions
 	constrainedVersions.set(providers.provider { dependencyVersions.constrainedVersions })
-	outputFile = file("${buildDir}/generated/docs/dependency-versions/documented-coordinates.adoc")
+	outputFile = layout.buildDirectory.file("generated/docs/dependency-versions/documented-coordinates.adoc")
 }
 
 task documentDependencyVersionProperties(type: org.springframework.boot.build.constraints.DocumentVersionProperties) {
 	dependsOn dependencyVersions
 	versionProperties.set(providers.provider { dependencyVersions.versionProperties})
-	outputFile = file("${buildDir}/generated/docs/dependency-versions/documented-properties.adoc")
+	outputFile = layout.buildDirectory.file("generated/docs/dependency-versions/documented-properties.adoc")
 }
 
 task documentConfigurationProperties(type: org.springframework.boot.build.context.properties.DocumentConfigurationProperties) {
 	configurationPropertyMetadata = configurations.configurationProperties
-	outputDir = file("${buildDir}/generated/docs/application-properties")
+	outputDir = layout.buildDirectory.dir("generated/docs/application-properties")
 }
 
 task documentDevtoolsPropertyDefaults(type: org.springframework.boot.build.devtools.DocumentDevtoolsPropertyDefaults) {}
@@ -279,7 +279,7 @@ task runRemoteSpringApplicationExample(type: org.springframework.boot.build.docs
 	classpath = configurations.remoteSpringApplicationExample
 	mainClass = "org.springframework.boot.devtools.RemoteSpringApplication"
 	args = ["https://myapp.example.com", "--spring.devtools.remote.secret=secret", "--spring.devtools.livereload.port=0"]
-	output = file("$buildDir/example-output/remote-spring-application.txt")
+	output = layout.buildDirectory.file("example-output/remote-spring-application.txt")
 	expectedLogging = "Started RemoteSpringApplication in "
 	applicationJar = "/Users/myuser/.m2/repository/org/springframework/boot/spring-boot-devtools/${project.version}/spring-boot-devtools-${project.version}.jar"
 	normalizeLiveReloadPort()
@@ -289,7 +289,7 @@ task runSpringApplicationExample(type: org.springframework.boot.build.docs.Appli
 	classpath = configurations.springApplicationExample + sourceSets.main.output
 	mainClass = "org.springframework.boot.docs.features.logexample.MyApplication"
 	args = ["--server.port=0"]
-	output = file("$buildDir/example-output/spring-application.txt")
+	output = layout.buildDirectory.file("example-output/spring-application.txt")
 	expectedLogging = "Started MyApplication in "
 	normalizeTomcatPort()
 }
@@ -298,7 +298,7 @@ task runLoggingFormatExample(type: org.springframework.boot.build.docs.Applicati
 	classpath = configurations.springApplicationExample + sourceSets.main.output
 	mainClass = "org.springframework.boot.docs.features.logexample.MyApplication"
 	args = ["--spring.main.banner-mode=off", "--server.port=0", "--spring.application.name=myapp"]
-	output = file("$buildDir/example-output/logging-format.txt")
+	output = layout.buildDirectory.file("example-output/logging-format.txt")
 	expectedLogging = "Started MyApplication in "
 	normalizeTomcatPort()
 }
diff --git a/spring-boot-project/spring-boot-test-autoconfigure/build.gradle b/spring-boot-project/spring-boot-test-autoconfigure/build.gradle
index c5cb46c04c2..0bd57c63e90 100644
--- a/spring-boot-project/spring-boot-test-autoconfigure/build.gradle
+++ b/spring-boot-project/spring-boot-test-autoconfigure/build.gradle
@@ -131,5 +131,5 @@ test {
 
 task testSliceMetadata(type: org.springframework.boot.build.test.autoconfigure.TestSliceMetadata) {
 	sourceSet = sourceSets.main
-	outputFile = file("${buildDir}/test-slice-metadata.properties")
+	outputFile = layout.buildDirectory.file("test-slice-metadata.properties")
 }
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-antlib/build.gradle b/spring-boot-project/spring-boot-tools/spring-boot-antlib/build.gradle
index f59b35f355b..61dde9509f6 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-antlib/build.gradle
+++ b/spring-boot-project/spring-boot-tools/spring-boot-antlib/build.gradle
@@ -26,7 +26,7 @@ dependencies {
 }
 
 task syncIntegrationTestSources(type: Sync) {
-	destinationDir file("${buildDir}/it")
+	destinationDir file(layout.buildDirectory.dir("it"))
 	from file("src/it")
 	filter(springRepositoryTransformers.ant())
 }
@@ -40,7 +40,7 @@ processResources {
 
 task integrationTest {
 	dependsOn syncIntegrationTestSources, jar
-	def resultsDir = file("${buildDir}/test-results/integrationTest")
+	def resultsDir = file(layout.buildDirectory.dir("test-results/integrationTest"))
 	inputs.dir(file("src/it")).withPathSensitivity(PathSensitivity.RELATIVE).withPropertyName("source")
 	inputs.files(sourceSets.main.runtimeClasspath).withNormalizer(ClasspathNormalizer).withPropertyName("classpath")
 	outputs.dirs resultsDir
@@ -62,9 +62,9 @@ task integrationTest {
 					ant.propertyref(name: "ivy.class.path")
 				}
 				plainlistener()
-				file("${buildDir}/test-results/integrationTest").mkdirs()
+				file(layout.buildDirectory.dir("test-results/integrationTest")).mkdirs()
 				xmllistener(toDir: resultsDir)
-				fileset(dir: "${buildDir}/it", includes: "**/build.xml")
+				fileset(dir: layout.buildDirectory.dir("it").get().asFile.toString(), includes: "**/build.xml")
 			}
 		}
 	}
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-cli/build.gradle b/spring-boot-project/spring-boot-tools/spring-boot-cli/build.gradle
index 8df216c43d6..312efac1434 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-cli/build.gradle
+++ b/spring-boot-project/spring-boot-tools/spring-boot-cli/build.gradle
@@ -106,12 +106,12 @@ task tar(type: Tar) {
 
 task homebrewFormula(type: org.springframework.boot.build.cli.HomebrewFormula) {
 	dependsOn tar
-	outputDir = file("${buildDir}/homebrew")
+	outputDir = layout.buildDirectory.dir("homebrew")
 	template = file("src/main/homebrew/spring-boot.rb")
 	archive = tar.archiveFile
 }
 
-def homebrewFormulaArtifact = artifacts.add("archives", file("${buildDir}/homebrew/spring-boot.rb")) {
+def homebrewFormulaArtifact = artifacts.add("archives", file(layout.buildDirectory.file("homebrew/spring-boot.rb"))) {
 	type "rb"
 	classifier "homebrew"
 	builtBy "homebrewFormula"
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-loader-tools/build.gradle b/spring-boot-project/spring-boot-tools/spring-boot-loader-tools/build.gradle
index da8e8308256..9508cfc6254 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-loader-tools/build.gradle
+++ b/spring-boot-project/spring-boot-tools/spring-boot-loader-tools/build.gradle
@@ -5,7 +5,7 @@ plugins {
 
 description = "Spring Boot Loader Tools"
 
-def generatedResources = "${buildDir}/generated-resources/main"
+Provider<Directory> generatedResources = layout.buildDirectory.dir("generated-resources/main")
 
 configurations {
 	loader {
@@ -62,7 +62,7 @@ task reproducibleLoaderJar(type: Jar) {
 	reproducibleFileOrder = true
 	preserveFileTimestamps = false
 	archiveFileName = "spring-boot-loader.jar"
-	destinationDirectory = file("${generatedResources}/META-INF/loader")
+	destinationDirectory = file(generatedResources.map {it.dir("META-INF/loader") })
 }
 
 task reproducibleLoaderClassicJar(type: Jar) {
@@ -77,7 +77,7 @@ task reproducibleLoaderClassicJar(type: Jar) {
 	reproducibleFileOrder = true
 	preserveFileTimestamps = false
 	archiveFileName = "spring-boot-loader-classic.jar"
-	destinationDirectory = file("${generatedResources}/META-INF/loader")
+	destinationDirectory = file(generatedResources.map { it.dir("META-INF/loader") })
 }
 
 task toolsJar(type: Sync) {
@@ -86,7 +86,7 @@ task toolsJar(type: Sync) {
 		file(configurations.jarmode.incoming.files.singleFile)
 	}
 	rename({ "spring-boot-jarmode-tools.jar" })
-	into(file("${generatedResources}/META-INF/jarmode"))
+	into(file(generatedResources.map { it.dir("META-INF/jarmode") }))
 }
 
 sourceSets {
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/build.gradle b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/build.gradle
index 74bb6ab8ebd..0a968ca214a 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/build.gradle
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/build.gradle
@@ -93,19 +93,19 @@ ext {
 
 task copySettingsXml(type: Copy) {
 	from file("src/intTest/projects/settings.xml")
-	into "${buildDir}/generated-resources/settings"
+	into layout.buildDirectory.dir("generated-resources/settings")
 	filter(springRepositoryTransformers.mavenSettings())
 }
 
 sourceSets {
 	main {
-		output.dir("${buildDir}/generated/resources/xsd", builtBy: "xsdResources")
+		output.dir(layout.buildDirectory.dir("generated/resources/xsd"), builtBy: "xsdResources")
 	}
 	intTest {
-		output.dir("${buildDir}/generated-resources", builtBy: ["extractVersionProperties", "copySettingsXml"])
+		output.dir(layout.buildDirectory.dir("generated-resources"), builtBy: ["extractVersionProperties", "copySettingsXml"])
 	}
 	dockerTest {
-		output.dir("${buildDir}/generated-resources", builtBy: "extractVersionProperties")
+		output.dir(layout.buildDirectory.dir("generated-resources"), builtBy: "extractVersionProperties")
 	}
 }
 
@@ -124,7 +124,7 @@ javadoc {
 
 task xsdResources(type: Sync) {
 	from "src/main/xsd/layers-${project.ext.xsdVersion}.xsd"
-	into "${buildDir}/generated/resources/xsd/org/springframework/boot/maven"
+	into layout.buildDirectory.dir("generated/resources/xsd/org/springframework/boot/maven")
 	rename { fileName -> "layers.xsd" }
 }
 
diff --git a/spring-boot-project/spring-boot/build.gradle b/spring-boot-project/spring-boot/build.gradle
index c57caa35d65..1af141ef0b3 100644
--- a/spring-boot-project/spring-boot/build.gradle
+++ b/spring-boot-project/spring-boot/build.gradle
@@ -9,7 +9,7 @@ plugins {
 
 description = "Spring Boot"
 
-def tomcatConfigProperties = "$buildDir/tomcat-config-properties"
+def tomcatConfigProperties = layout.buildDirectory.dir("tomcat-config-properties")
 
 configurations {
 	tomcatDistribution
diff --git a/spring-boot-system-tests/spring-boot-image-tests/build.gradle b/spring-boot-system-tests/spring-boot-image-tests/build.gradle
index 81483d60e3c..37e532b4af8 100644
--- a/spring-boot-system-tests/spring-boot-image-tests/build.gradle
+++ b/spring-boot-system-tests/spring-boot-image-tests/build.gradle
@@ -30,7 +30,7 @@ configurations {
 
 task syncMavenRepository(type: Sync) {
 	from configurations.app
-	into "${buildDir}/system-test-maven-repository"
+	into layout.buildDirectory.dir("system-test-maven-repository")
 }
 
 systemTest {
diff --git a/spring-boot-tests/spring-boot-integration-tests/spring-boot-launch-script-tests/build.gradle b/spring-boot-tests/spring-boot-integration-tests/spring-boot-launch-script-tests/build.gradle
index e98b3ce1b6b..86dfba2942b 100644
--- a/spring-boot-tests/spring-boot-integration-tests/spring-boot-launch-script-tests/build.gradle
+++ b/spring-boot-tests/spring-boot-integration-tests/spring-boot-launch-script-tests/build.gradle
@@ -25,17 +25,17 @@ dependencies {
 
 task syncMavenRepository(type: Sync) {
 	from configurations.app
-	into "${buildDir}/docker-test-maven-repository"
+	into layout.buildDirectory.dir("docker-test-maven-repository")
 }
 
 task syncAppSource(type: org.springframework.boot.build.SyncAppSource) {
 	sourceDirectory = file("spring-boot-launch-script-tests-app")
-	destinationDirectory = file("${buildDir}/spring-boot-launch-script-tests-app")
+	destinationDirectory = file(layout.buildDirectory.dir("spring-boot-launch-script-tests-app"))
 }
 
 task buildApp(type: GradleBuild) {
 	dependsOn syncAppSource, syncMavenRepository
-	dir = "${buildDir}/spring-boot-launch-script-tests-app"
+	dir = layout.buildDirectory.dir("spring-boot-launch-script-tests-app")
 	startParameter.buildCacheEnabled = false
 	tasks  = ["build"]
 }
@@ -54,7 +54,7 @@ task syncJdkDownloads(type: Sync) {
 	dependsOn downloadJdk
 	from "${project.gradle.gradleUserHomeDir}/caches/springboot/downloads/jdk/bellsoft/"
 	include "bellsoft-jdk${jdkVersion}-linux-${jdkArch}.tar.gz"
-	into "${project.buildDir}/downloads/jdk/bellsoft/"
+	into layout.buildDirectory.dir("downloads/jdk/bellsoft/")
 }
 
 tasks.named("processDockerTestResources").configure {
diff --git a/spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-classic-tests/build.gradle b/spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-classic-tests/build.gradle
index b8901f584fb..bea6d3e8c30 100644
--- a/spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-classic-tests/build.gradle
+++ b/spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-classic-tests/build.gradle
@@ -22,17 +22,17 @@ dependencies {
 
 task syncMavenRepository(type: Sync) {
 	from configurations.app
-	into "${buildDir}/docker-test-maven-repository"
+	into layout.buildDirectory.dir("docker-test-maven-repository")
 }
 
 task syncAppSource(type: org.springframework.boot.build.SyncAppSource) {
 	sourceDirectory = file("spring-boot-loader-classic-tests-app")
-	destinationDirectory = file("${buildDir}/spring-boot-loader-classic-tests-app")
+	destinationDirectory = file(layout.buildDirectory.dir("spring-boot-loader-classic-tests-app"))
 }
 
 task buildApp(type: GradleBuild) {
 	dependsOn syncAppSource, syncMavenRepository
-	dir = "${buildDir}/spring-boot-loader-classic-tests-app"
+	dir = layout.buildDirectory.dir("spring-boot-loader-classic-tests-app")
 	startParameter.buildCacheEnabled = false
 	tasks  = ["build"]
 }
diff --git a/spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-tests/build.gradle b/spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-tests/build.gradle
index 876d450351f..9cebfbd3839 100644
--- a/spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-tests/build.gradle
+++ b/spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-tests/build.gradle
@@ -28,29 +28,29 @@ dependencies {
 
 task syncMavenRepository(type: Sync) {
 	from configurations.app
-	into "${buildDir}/docker-test-maven-repository"
+	into layout.buildDirectory.dir("docker-test-maven-repository")
 }
 
 task syncAppSource(type: org.springframework.boot.build.SyncAppSource) {
 	sourceDirectory = file("spring-boot-loader-tests-app")
-	destinationDirectory = file("${buildDir}/spring-boot-loader-tests-app")
+	destinationDirectory = file(layout.buildDirectory.dir("spring-boot-loader-tests-app"))
 }
 
 task buildApp(type: GradleBuild) {
 	dependsOn syncAppSource, syncMavenRepository
-	dir = "${buildDir}/spring-boot-loader-tests-app"
+	dir = layout.buildDirectory.dir("spring-boot-loader-tests-app")
 	startParameter.buildCacheEnabled = false
 	tasks  = ["build"]
 }
 
 task syncSignedJarAppSource(type: org.springframework.boot.build.SyncAppSource) {
 	sourceDirectory = file("spring-boot-loader-tests-signed-jar")
-	destinationDirectory = file("${buildDir}/spring-boot-loader-tests-signed-jar")
+	destinationDirectory = file(layout.buildDirectory.dir("spring-boot-loader-tests-signed-jar"))
 }
 
 task buildSignedJarApp(type: GradleBuild) {
 	dependsOn syncSignedJarAppSource, syncMavenRepository
-	dir = "${buildDir}/spring-boot-loader-tests-signed-jar"
+	dir = layout.buildDirectory.dir("spring-boot-loader-tests-signed-jar")
 	startParameter.buildCacheEnabled = false
 	tasks  = ["build"]
 }
@@ -69,7 +69,7 @@ task syncJdkDownloads(type: Sync) {
 	dependsOn downloadJdk
 	from "${project.gradle.gradleUserHomeDir}/caches/springboot/downloads/jdk/oracle/"
 	include "jdk-${oracleJdkVersion}_linux-${oracleJdkArch}_bin.tar.gz"
-	into "${project.buildDir}/downloads/jdk/oracle/"
+	into layout.buildDirectory.dir("downloads/jdk/oracle/")
 }
 
 tasks.named("processDockerTestResources").configure {
diff --git a/spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/build.gradle b/spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/build.gradle
index b156f12b0d0..52a71d3f85b 100644
--- a/spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/build.gradle
+++ b/spring-boot-tests/spring-boot-integration-tests/spring-boot-server-tests/build.gradle
@@ -29,7 +29,7 @@ dependencies {
 }
 
 task syncTestRepository(type: Sync) {
-	destinationDir = file("${buildDir}/test-repository")
+	destinationDir = file(layout.buildDirectory.dir("test-repository"))
 	from {
 		configurations.testRepository
 	}
@@ -37,12 +37,12 @@ task syncTestRepository(type: Sync) {
 
 task syncAppSource(type: org.springframework.boot.build.SyncAppSource) {
 	sourceDirectory = file("spring-boot-server-tests-app")
-	destinationDirectory = file("${buildDir}/spring-boot-server-tests-app")
+	destinationDirectory = file(layout.buildDirectory.dir("spring-boot-server-tests-app"))
 }
 
 task buildApps(type: GradleBuild) {
 	dependsOn syncAppSource, syncTestRepository
-	dir = "${buildDir}/spring-boot-server-tests-app"
+	dir = layout.buildDirectory.dir("spring-boot-server-tests-app")
 	startParameter.buildCacheEnabled = false
 	tasks = [
 		"jettyBootJar",
@@ -56,15 +56,16 @@ task buildApps(type: GradleBuild) {
 
 intTest {
 	inputs.files(
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-jetty.jar",
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-jetty.war",
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-resources.jar",
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-tomcat.jar",
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-tomcat.war",
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-undertow.jar",
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-undertow.war")
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-jetty.jar"),
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-jetty.war"),
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-resources.jar"),
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-tomcat.jar"),
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-tomcat.war"),
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-undertow.jar"),
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-undertow.war")
+	)
 		.withPropertyName("applicationArchives")
 		.withPathSensitivity(PathSensitivity.RELATIVE)
 		.withNormalizer(ClasspathNormalizer)
 	dependsOn buildApps
-}
\ No newline at end of file
+}
diff --git a/spring-boot-tests/spring-boot-integration-tests/spring-boot-sni-tests/build.gradle b/spring-boot-tests/spring-boot-integration-tests/spring-boot-sni-tests/build.gradle
index 258a048eacb..6f0dac10e47 100644
--- a/spring-boot-tests/spring-boot-integration-tests/spring-boot-sni-tests/build.gradle
+++ b/spring-boot-tests/spring-boot-integration-tests/spring-boot-sni-tests/build.gradle
@@ -29,17 +29,17 @@ dependencies {
 
 task syncMavenRepository(type: Sync) {
 	from configurations.app
-	into "${buildDir}/int-test-maven-repository"
+	into layout.buildDirectory.dir("int-test-maven-repository")
 }
 
 task syncReactiveServerAppSource(type: org.springframework.boot.build.SyncAppSource) {
 	sourceDirectory = file("spring-boot-sni-reactive-app")
-	destinationDirectory = file("${buildDir}/spring-boot-sni-reactive-app")
+	destinationDirectory = file(layout.buildDirectory.dir("spring-boot-sni-reactive-app"))
 }
 
 task buildReactiveServerApps(type: GradleBuild) {
 	dependsOn syncReactiveServerAppSource, syncMavenRepository
-	dir = "${buildDir}/spring-boot-sni-reactive-app"
+	dir = layout.buildDirectory.dir("spring-boot-sni-reactive-app")
 	startParameter.buildCacheEnabled = false
 	tasks = [
 			"nettyServerApp",
@@ -50,12 +50,12 @@ task buildReactiveServerApps(type: GradleBuild) {
 
 task syncServletServerAppSource(type: org.springframework.boot.build.SyncAppSource) {
 	sourceDirectory = file("spring-boot-sni-servlet-app")
-	destinationDirectory = file("${buildDir}/spring-boot-sni-servlet-app")
+	destinationDirectory = file(layout.buildDirectory.dir("spring-boot-sni-servlet-app"))
 }
 
 task buildServletServerApps(type: GradleBuild) {
 	dependsOn syncServletServerAppSource, syncMavenRepository
-	dir = "${buildDir}/spring-boot-sni-servlet-app"
+	dir = layout.buildDirectory.dir("spring-boot-sni-servlet-app")
 	startParameter.buildCacheEnabled = false
 	tasks = [
 			"tomcatServerApp",
@@ -65,23 +65,24 @@ task buildServletServerApps(type: GradleBuild) {
 
 task syncClientAppSource(type: org.springframework.boot.build.SyncAppSource) {
 	sourceDirectory = file("spring-boot-sni-client-app")
-	destinationDirectory = file("${buildDir}/spring-boot-sni-client-app")
+	destinationDirectory = file(layout.buildDirectory.dir("spring-boot-sni-client-app"))
 }
 
 task buildClientApp(type: GradleBuild) {
 	dependsOn syncClientAppSource, syncMavenRepository
-	dir = "${buildDir}/spring-boot-sni-client-app"
+	dir = layout.buildDirectory.dir("spring-boot-sni-client-app")
 	startParameter.buildCacheEnabled = false
 	tasks = ["build"]
 }
 
 intTest {
 	inputs.files(
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-netty-reactive.jar",
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-tomcat-reactive.jar",
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-tomcat-servlet.jar",
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-undertow-reactive.jar",
-			"${buildDir}/spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-undertow-servlet.jar")
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-netty-reactive.jar"),
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-tomcat-reactive.jar"),
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-tomcat-servlet.jar"),
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-undertow-reactive.jar"),
+			layout.buildDirectory.file("spring-boot-server-tests-app/build/libs/spring-boot-server-tests-app-undertow-servlet.jar")
+	)
 			.withPropertyName("applicationArchives")
 			.withPathSensitivity(PathSensitivity.RELATIVE)
 			.withNormalizer(ClasspathNormalizer)
diff --git a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-ant/build.gradle b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-ant/build.gradle
index 5e1fd73fd42..43ef4f3d14a 100644
--- a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-ant/build.gradle
+++ b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-ant/build.gradle
@@ -39,7 +39,7 @@ dependencies {
 }
 
 task syncTestRepository(type: Sync) {
-	destinationDir = file("${buildDir}/test-repository")
+	destinationDir = file(layout.buildDirectory.dir("test-repository"))
 	from configurations.testRepository
 	rename {
 		it.replaceAll("-[0-9]+\\.[0-9]+-[0-9]+\\.", "-SNAPSHOT.")
@@ -47,14 +47,14 @@ task syncTestRepository(type: Sync) {
 }
 
 task syncAntSources(type: Sync) {
-	destinationDir file("${buildDir}/ant")
+	destinationDir file(layout.buildDirectory.dir("ant"))
 	from project.layout.projectDirectory
 	include "*.xml"
 	filter(springRepositoryTransformers.ant())
 }
 
 task antRun(type: JavaExec) {
-	workingDir "${buildDir}/ant"
+	workingDir layout.buildDirectory.dir("ant")
 	dependsOn syncTestRepository, syncAntSources, configurations.antDependencies
 	classpath = configurations.antDependencies;
 	mainClass = "org.apache.tools.ant.launch.Launcher"