diff --git a/src/source/load_tilejson.js b/src/source/load_tilejson.js
index f3fcfc88582..f26816d1b49 100644
--- a/src/source/load_tilejson.js
+++ b/src/source/load_tilejson.js
@@ -1,6 +1,6 @@
 // @flow
 
-import { pick } from '../util/util';
+import { pick, extend } from '../util/util';
 
 import { getJSON, ResourceType } from '../util/ajax';
 import browser from '../util/browser';
@@ -16,8 +16,9 @@ export default function(options: any, requestManager: RequestManager, callback:
             return callback(err);
         } else if (tileJSON) {
             const result: any = pick(
-                tileJSON,
-                ['tiles', 'minzoom', 'maxzoom', 'attribution', 'mapbox_logo', 'bounds']
+                // explicit source options take precedence over TileJSON
+                extend(tileJSON, options),
+                ['tiles', 'minzoom', 'maxzoom', 'attribution', 'mapbox_logo', 'bounds', 'scheme', 'tileSize', 'encoding']
             );
 
             if (tileJSON.vector_layers) {
diff --git a/src/source/raster_dem_tile_source.js b/src/source/raster_dem_tile_source.js
index cf02306b4ef..4407f207ec2 100644
--- a/src/source/raster_dem_tile_source.js
+++ b/src/source/raster_dem_tile_source.js
@@ -23,7 +23,7 @@ class RasterDEMTileSource extends RasterTileSource implements Source {
         super(id, options, dispatcher, eventedParent);
         this.type = 'raster-dem';
         this.maxzoom = 22;
-        this._options = extend({}, options);
+        this._options = extend({ type: 'raster-dem' }, options);
         this.encoding = options.encoding || "mapbox";
     }
 
diff --git a/src/source/raster_tile_source.js b/src/source/raster_tile_source.js
index 5580996c341..ecadfd17241 100644
--- a/src/source/raster_tile_source.js
+++ b/src/source/raster_tile_source.js
@@ -55,7 +55,7 @@ class RasterTileSource extends Evented implements Source {
         this.tileSize = 512;
         this._loaded = false;
 
-        this._options = extend({}, options);
+        this._options = extend({ type: 'raster' }, options);
         extend(this, pick(options, ['url', 'scheme', 'tileSize']));
     }
 
diff --git a/src/style-spec/validate/validate_source.js b/src/style-spec/validate/validate_source.js
index 44ec5dceebc..b325eb69508 100644
--- a/src/style-spec/validate/validate_source.js
+++ b/src/style-spec/validate/validate_source.js
@@ -29,13 +29,6 @@ export default function validateSource(options) {
             style: options.style,
             styleSpec
         });
-        if ('url' in value) {
-            for (const prop in value) {
-                if (['type', 'url', 'tileSize'].indexOf(prop) < 0) {
-                    errors.push(new ValidationError(`${key}.${prop}`, value[prop], `a source with a "url" property may not include a "${prop}" property`));
-                }
-            }
-        }
         return errors;
 
     case 'geojson':
diff --git a/test/integration/render-tests/tilejson-bounds/overwrite-bounds/expected.png b/test/integration/render-tests/tilejson-bounds/overwrite-bounds/expected.png
new file mode 100644
index 00000000000..49bdc006300
Binary files /dev/null and b/test/integration/render-tests/tilejson-bounds/overwrite-bounds/expected.png differ
diff --git a/test/integration/render-tests/tilejson-bounds/overwrite-bounds/style.json b/test/integration/render-tests/tilejson-bounds/overwrite-bounds/style.json
new file mode 100644
index 00000000000..c19bafe6c9a
--- /dev/null
+++ b/test/integration/render-tests/tilejson-bounds/overwrite-bounds/style.json
@@ -0,0 +1,41 @@
+{
+    "version": 8,
+    "metadata": {
+      "test": {
+        "height": 64,
+        "width":64
+      }
+    },
+    "center": [
+        13.425247606101294, 52.5033795378269
+    ],
+    "zoom": 14,
+    "sources": {
+      "mapbox": {
+        "type": "vector",
+        "maxzoom": 14,
+        "url": "local://tilesets/vector.json",
+        "bounds":[13.4043671, 52.4959407, 13.425247606101294, 52.5033795378269]
+      }
+    },
+    "layers": [
+      {
+        "id": "background",
+        "type": "background",
+        "paint": {
+          "background-color": "white"
+        }
+      },
+      {
+        "id": "road",
+        "type": "line",
+        "source": "mapbox",
+        "source-layer": "road",
+        "paint": {
+          "line-width": 2,
+          "line-color": "#000"
+        }
+      }
+    ]
+  }
+  
\ No newline at end of file
diff --git a/test/unit/style-spec/fixture/sources.output.json b/test/unit/style-spec/fixture/sources.output.json
index 34674e6aa96..ea691559a05 100644
--- a/test/unit/style-spec/fixture/sources.output.json
+++ b/test/unit/style-spec/fixture/sources.output.json
@@ -7,14 +7,6 @@
     "message": "sources.invalid-type.type: expected one of [vector, raster, raster-dem, geojson, video, image], \"invalid\" found",
     "line": 7
   },
-  {
-    "message": "sources.no-tilejson-properties-with-url.tiles: a source with a \"url\" property may not include a \"tiles\" property",
-    "line": 12
-  },
-  {
-    "message": "sources.no-unknown-properties-with-url.foo: a source with a \"url\" property may not include a \"foo\" property",
-    "line": 17
-  },
   {
     "message": "sources.video-missing-coordinates: missing required property \"coordinates\"",
     "line": 26