diff --git a/ui/build/sandbox_darwin.go b/ui/build/sandbox_darwin.go
new file mode 100644
index 0000000..54c145c
--- /dev/null
+++ b/ui/build/sandbox_darwin.go
@@ -0,0 +1,69 @@
+// Copyright 2017 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package build
+
+import (
+	"os/exec"
+	"path/filepath"
+)
+
+type Sandbox string
+
+const (
+	noSandbox     = ""
+	globalSandbox = "build/soong/ui/build/sandbox/darwin/global.sb"
+	makeSandbox   = globalSandbox
+	soongSandbox  = globalSandbox
+	katiSandbox   = globalSandbox
+)
+
+var sandboxExecPath string
+
+func init() {
+	if p, err := exec.LookPath("sandbox-exec"); err == nil {
+		sandboxExecPath = p
+	}
+}
+
+func (c *Cmd) sandboxSupported() bool {
+	if c.Sandbox == "" {
+		return false
+	} else if sandboxExecPath == "" {
+		c.ctx.Verboseln("sandbox-exec not found, disabling sandboxing")
+		return false
+	}
+	return true
+}
+
+func (c *Cmd) wrapSandbox() {
+	homeDir, _ := c.Environment.Get("HOME")
+	outDir, err := filepath.Abs(c.config.OutDir())
+	if err != nil {
+		c.ctx.Fatalln("Failed to get absolute path of OUT_DIR:", err)
+	}
+	distDir, err := filepath.Abs(c.config.DistDir())
+	if err != nil {
+		c.ctx.Fatalln("Failed to get absolute path of DIST_DIR:", err)
+	}
+
+	c.Args[0] = c.Path
+	c.Path = sandboxExecPath
+	c.Args = append([]string{
+		"sandbox-exec", "-f", string(c.Sandbox),
+		"-D", "HOME=" + homeDir,
+		"-D", "OUT_DIR=" + outDir,
+		"-D", "DIST_DIR=" + distDir,
+	}, c.Args...)
+}