diff --git a/test/ProjectDiff.Tests/Core/DirectoryBuildPropsTests.cs b/test/ProjectDiff.Tests/Core/DirectoryBuildPropsTests.cs
new file mode 100644
index 0000000..5ea1254
--- /dev/null
+++ b/test/ProjectDiff.Tests/Core/DirectoryBuildPropsTests.cs
@@ -0,0 +1,223 @@
+using Microsoft.Extensions.Logging.Abstractions;
+using ProjectDiff.Core;
+using ProjectDiff.Core.Entrypoints;
+using ProjectDiff.Tests.Utils;
+
+namespace ProjectDiff.Tests.Core;
+
+public sealed class DirectoryBuildPropsTests
+{
+    [Fact]
+    public async Task ModifyingParentDirectoryBuildProps_ShouldNotAffectProjectInSubDirectory()
+    {
+        using var repo = await TestRepository.SetupAsync(async r =>
+            {
+                await r.WriteAllTextAsync(
+                    "Directory.Build.props",
+                    """
+                    <Project>
+                        <PropertyGroup>
+                            <MyCustomProperty>Value</MyCustomProperty>
+                        </PropertyGroup>
+                    </Project>
+                    """
+                );
+                r.CreateDirectory("Sample");
+                await r.WriteAllTextAsync(
+                    "Sample/Directory.Build.props",
+                    """
+                    <Project>
+                        <PropertyGroup>
+                            <SomeOtherProperty>Value</SomeOtherProperty>
+                        </PropertyGroup>
+                    </Project>
+                    """
+                );
+                r.CreateProject("Sample/Sample.csproj");
+            }
+        );
+
+        await repo.WriteAllTextAsync(
+            "Directory.Build.props",
+            """
+            <Project>
+                <PropertyGroup>
+                    <MyCustomProperty>SomeNewValue</MyCustomProperty>
+                </PropertyGroup>
+            </Project>
+            """
+        );
+
+        var result = await GetProjectDiff(repo);
+        Assert.Equal(ProjectDiffExecutionStatus.Success, result.Status);
+        Assert.Empty(result.Projects);
+    }
+
+    [Fact]
+    public async Task DirectoryBuildProps_AffectsProjects_IfImportedByNestedDirectoryBuildProps()
+    {
+        using var repo = await TestRepository.SetupAsync(async r =>
+            {
+                await r.WriteAllTextAsync(
+                    "Directory.Build.props",
+                    """
+                    <Project>
+                        <PropertyGroup>
+                            <MyCustomProperty>Value</MyCustomProperty>
+                        </PropertyGroup>
+                    </Project>
+                    """
+                );
+                r.CreateDirectory("Sample");
+                await r.WriteAllTextAsync(
+                    "Sample/Directory.Build.props",
+                    """
+                    <Project>
+                        <!-- This is a nested Directory.Build.props file -->
+                        <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
+                        <PropertyGroup>
+                            <SomeOtherProperty>Value</SomeOtherProperty>
+                        </PropertyGroup>
+                    </Project>
+                    """
+                );
+                r.CreateProject("Sample/Sample.csproj");
+            }
+        );
+
+
+        await repo.WriteAllTextAsync(
+            "Directory.Build.props",
+            """
+            <Project>
+                <PropertyGroup>
+                    <MyCustomProperty>SomeNewValue</MyCustomProperty>
+                </PropertyGroup>
+            </Project>
+            """
+        );
+
+        var result = await GetProjectDiff(repo);
+
+        Assert.Equal(ProjectDiffExecutionStatus.Success, result.Status);
+
+        var project = Assert.Single(result.Projects);
+        Assert.Equal(DiffStatus.Modified, project.Status);
+    }
+
+    [Fact]
+    public async Task AddingDirectoryBuildProps_ShouldOnlyAffectProjectsInDirectory()
+    {
+        using var repo = await TestRepository.SetupAsync(r =>
+            {
+                r.CreateDirectory("Sample");
+                r.CreateProject("Sample/Sample.csproj");
+                r.CreateDirectory("Other");
+                r.CreateProject("Other/Other.csproj");
+                return Task.CompletedTask;
+            }
+        );
+
+        await repo.WriteAllTextAsync(
+            "Sample/Directory.Build.props",
+            """
+            <Project>
+                <PropertyGroup>
+                    <MyCustomProperty>Value</MyCustomProperty>
+                </PropertyGroup>
+            </Project>
+            """
+        );
+
+        var result = await GetProjectDiff(repo);
+        Assert.Equal(ProjectDiffExecutionStatus.Success, result.Status);
+        var project = Assert.Single(result.Projects);
+
+        Assert.Equal(repo.GetPath("Sample", "Sample.csproj"), project.Path);
+    }
+
+    [Fact]
+    public async Task AddingDirectoryBuildProps_ShouldAffectProjects()
+    {
+        using var repo = await TestRepository.SetupAsync(r =>
+            {
+                r.CreateDirectory("Sample");
+                r.CreateProject("Sample/Sample.csproj");
+                return Task.CompletedTask;
+            }
+        );
+
+        await repo.WriteAllTextAsync(
+            "Directory.Build.props",
+            """
+            <Project>
+                <PropertyGroup>
+                    <MyCustomProperty>Value</MyCustomProperty>
+                </PropertyGroup>
+            </Project>
+            """
+        );
+
+        var result = await GetProjectDiff(repo);
+
+        Assert.Equal(ProjectDiffExecutionStatus.Success, result.Status);
+
+        var project = Assert.Single(result.Projects);
+
+        Assert.Equal(DiffStatus.Modified, project.Status);
+    }
+
+    [Fact]
+    public async Task ModifyingDirectoryBuildProps_ShouldAffectProjects()
+    {
+        using var repo = await TestRepository.SetupAsync(async r =>
+            {
+                await r.WriteAllTextAsync(
+                    "Directory.Build.props",
+                    """
+                    <Project>
+                        <PropertyGroup>
+                            <MyCustomProperty>Value</MyCustomProperty>
+                        </PropertyGroup>
+                    </Project>
+                    """
+                );
+
+                r.CreateDirectory("Sample");
+                r.CreateProject("Sample/Sample.csproj");
+            }
+        );
+
+        await repo.WriteAllTextAsync(
+            "Directory.Build.props",
+            """
+            <Project>
+                <PropertyGroup>
+                    <MyCustomProperty>SomeNewValue</MyCustomProperty>
+                </PropertyGroup>
+            </Project>
+            """
+        );
+        var result = await GetProjectDiff(repo);
+
+        Assert.Equal(ProjectDiffExecutionStatus.Success, result.Status);
+
+        var project = Assert.Single(result.Projects);
+
+        Assert.Equal(DiffStatus.Modified, project.Status);
+    }
+
+
+    private static Task<ProjectDiffResult> GetProjectDiff(TestRepository repo)
+    {
+        var executor = new ProjectDiffExecutor(new ProjectDiffExecutorOptions());
+        return executor.GetProjectDiff(
+            repo.WorkingDirectory,
+            new DirectoryScanEntrypointProvider(
+                repo.WorkingDirectory,
+                NullLogger<DirectoryScanEntrypointProvider>.Instance
+            ),
+            cancellationToken: TestContext.Current.CancellationToken
+        );
+    }
+}
\ No newline at end of file
diff --git a/test/ProjectDiff.Tests/Tool/ProjectDiffTests.cs b/test/ProjectDiff.Tests/Tool/ProjectDiffTests.cs
index 3671179..56483d6 100644
--- a/test/ProjectDiff.Tests/Tool/ProjectDiffTests.cs
+++ b/test/ProjectDiff.Tests/Tool/ProjectDiffTests.cs
@@ -335,7 +335,7 @@ params string[] args
         var console = new TestConsole(repository.WorkingDirectory);
         
         var cli = ProjectDiffTool.BuildCli(console);
-        var exitCode = await cli.InvokeAsync(args.Append("--log-level=Debug").ToArray());
+        var exitCode = await cli.InvokeAsync(args.Append("--log-level=None").ToArray());
         if (exitCode != 0)
         {
             var stderr = console.GetStandardError();