bug 5787

src/pages/building/list/add/components/base.jsx

               <SelectCity />,
             )}
           </Form.Item>
-          {/* <Form.Item label="楼盘区域" >
+          <Form.Item label="楼盘区域" >
             {getFieldDecorator('buildingArea', {
               rules: [{ required: true, message: '请输入楼盘区域' }],
             })(<Input />)}
-          </Form.Item> */}
+          </Form.Item>
           <Form.Item label="项目地址" >
             {getFieldDecorator('address', {
               rules: [{ required: true, message: '请输入项目地址' }],