diff --git a/types/d/auto-bind.d.ts b/types/d/auto-bind.d.ts
new file mode 100644
index 0000000000..f52f8a955d
--- /dev/null
+++ b/types/d/auto-bind.d.ts
@@ -0,0 +1,13 @@
+export = autoBind;
+
+declare function autoBind(
+    obj: { [key: string]: PropertyDescriptor },
+    options?: autoBind.Options
+): PropertyDescriptorMap;
+
+declare namespace autoBind {
+    interface Options {
+        overwriteDefinition?: boolean;
+        resolveContext?: (context: any) => any;
+    }
+}
diff --git a/types/d/d-tests.ts b/types/d/d-tests.ts
new file mode 100644
index 0000000000..e08582cf0e
--- /dev/null
+++ b/types/d/d-tests.ts
@@ -0,0 +1,85 @@
+import d = require('d');
+import autoBind = require('d/auto-bind');
+import lazy = require('d/lazy');
+
+class Account {}
+Object.defineProperties(Account.prototype, {
+    deposit: d(() => {}),
+    withdraw: d(() => {}),
+    balance: d.gs(() => {}),
+});
+
+d('foo'); // $ExpectType PropertyDescriptor
+d('foo', { enumerable: true }); // $ExpectType PropertyDescriptor
+d('c', 'foo'); // $ExpectType PropertyDescriptor
+d('c', 'foo', { enumerable: true }); // $ExpectType PropertyDescriptor
+
+d('c', 'foo'); // $ExpectType PropertyDescriptor
+d('e', 'foo'); // $ExpectType PropertyDescriptor
+d('w', 'foo'); // $ExpectType PropertyDescriptor
+d('ce', 'foo'); // $ExpectType PropertyDescriptor
+d('cw', 'foo'); // $ExpectType PropertyDescriptor
+d('ew', 'foo'); // $ExpectType PropertyDescriptor
+d('cew', 'foo'); // $ExpectType PropertyDescriptor
+d('foo', 'foo'); // $ExpectError
+
+d.gs('c', { enumerable: true }); // $ExpectType PropertyDescriptor
+d.gs('c', () => ({}), { enumerable: true }); // $ExpectType PropertyDescriptor
+d.gs(() => ({})); // $ExpectType PropertyDescriptor
+d.gs(null, () => ({})); // $ExpectType PropertyDescriptor
+d.gs(undefined, () => ({})); // $ExpectType PropertyDescriptor
+d.gs('c', () => ({})); // $ExpectType PropertyDescriptor
+d.gs('c', null, () => ({})); // $ExpectType PropertyDescriptor
+d.gs('c', undefined, () => ({})); // $ExpectType PropertyDescriptor
+d.gs('c', null, () => ({}), { enumerable: true }); // $ExpectType PropertyDescriptor
+d.gs('c', undefined, () => ({}), { enumerable: true }); // $ExpectType PropertyDescriptor
+
+d.gs('c', () => ({})); // $ExpectType PropertyDescriptor
+d.gs('e', () => ({})); // $ExpectType PropertyDescriptor
+d.gs('ce', () => ({})); // $ExpectType PropertyDescriptor
+d.gs('cew', () => ({})); // $ExpectError
+
+class Foo {
+    _count: number;
+}
+
+Object.defineProperties(
+    Foo.prototype,
+    autoBind({
+        increment: d(function(this: any) {
+            ++this._count;
+        }),
+    })
+);
+autoBind(
+    {
+        increment: d(function(this: any) {
+            ++this._count;
+        }),
+    },
+    { overwriteDefinition: true }
+);
+autoBind(
+    {
+        increment: d(function(this: any) {
+            ++this._count;
+        }),
+    },
+    {
+        resolveContext(ctx: any) {
+            return ctx;
+        },
+    }
+);
+
+Object.defineProperties(
+    Foo.prototype,
+    lazy({
+        items: d(() => {
+            return [];
+        }),
+    })
+);
+
+const foo = new Foo();
+(foo as any).items.push(1, 2); // foo.items array created and defined directly on foo
diff --git a/types/d/index.d.ts b/types/d/index.d.ts
new file mode 100644
index 0000000000..9130000999
--- /dev/null
+++ b/types/d/index.d.ts
@@ -0,0 +1,40 @@
+// Type definitions for d 1.0
+// Project: https://github.com/medikoo/d#readme
+// Definitions by: BendingBender <https://github.com/BendingBender>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.4
+
+export = d;
+
+declare function d(value: any, options?: PropertyDescriptor): PropertyDescriptor;
+declare function d(flags: d.Flags, value: any, options?: PropertyDescriptor): PropertyDescriptor;
+
+declare namespace d {
+    function gs(flags: GetSetFlags, options: PropertyDescriptor): PropertyDescriptor;
+    function gs(flags: GetSetFlags, get: (...args: any[]) => any, options: PropertyDescriptor): PropertyDescriptor;
+    function gs(
+        get: (...args: any[]) => any,
+        set?: ((...args: any[]) => any) | null,
+        options?: PropertyDescriptor
+    ): PropertyDescriptor;
+    function gs(
+        get: ((...args: any[]) => any) | null | undefined,
+        set: (...args: any[]) => any,
+        options?: PropertyDescriptor
+    ): PropertyDescriptor;
+    function gs(
+        flags: GetSetFlags,
+        get: (...args: any[]) => any,
+        set?: ((...args: any[]) => any) | null,
+        options?: PropertyDescriptor
+    ): PropertyDescriptor;
+    function gs(
+        flags: GetSetFlags,
+        get: ((...args: any[]) => any) | null | undefined,
+        set: (...args: any[]) => any,
+        options?: PropertyDescriptor
+    ): PropertyDescriptor;
+
+    type GetSetFlags = 'c' | 'e' | 'ce';
+    type Flags = GetSetFlags | 'w' | 'cw' | 'ew' | 'cew';
+}
diff --git a/types/d/lazy.d.ts b/types/d/lazy.d.ts
new file mode 100644
index 0000000000..3cba797050
--- /dev/null
+++ b/types/d/lazy.d.ts
@@ -0,0 +1,3 @@
+export = lazy;
+
+declare function lazy(obj: { [key: string]: PropertyDescriptor }): PropertyDescriptorMap;
diff --git a/types/d/tsconfig.json b/types/d/tsconfig.json
new file mode 100644
index 0000000000..26c1a65f3e
--- /dev/null
+++ b/types/d/tsconfig.json
@@ -0,0 +1,25 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "auto-bind.d.ts",
+        "lazy.d.ts",
+        "d-tests.ts"
+    ]
+}
diff --git a/types/d/tslint.json b/types/d/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/d/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }