ADU正如我们从 “附属住宅单元 “一词中所理解的那样，意味着属于主屋的附属房屋。我们最初的设计是通过重新思考ADU的价值，而不是作为一个次要的房子，并发现任何被忽视的方面，在设计上可能是有趣和有效的。人们建造ADU的原因有很多，但这个ADU的预期用途是用于出租单位。因此，我们在设计建筑时不断设想未来的潜在租户和他们的生活方式。

ADU as we understand from the term “Accessory Dwelling Unit” implies an accessory house that belongs to the main house. Our initial design was driven by rethinking the value of ADU not as a secondary house and discovering any overlooked aspects that might be interesting and effective in design. There are many reasons people are building ADU, but the intended use of this ADU is for a rental unit. Therefore, we constantly envisioned the future potential renters and their lifestyles when we design the building.

ADU的位置对设计有有利的影响。在洛杉矶的老房子里，车库的典型位置之一是在长长的车道之后的房产后端。车道被用作前屋的停车空间，同时也是通往后屋的走道。我们希望通过设计一条碎石路和大门，让租房者感觉到进入了自己的地方，并有一个前花园。除了ADU位于街道内的更远处，新房子外的街道景色也更深远，更令人愉快。

The location of ADU has a beneficial effect on design. One of the typical locations of the garage in old houses in Los Angeles is the rear end of the property after a long driveway. The driveway is used as a parking space for the front house and also as a walkway leading to the back house. We want to make this walkway for the renters to feel entering their own place by designing a gravel path and gate with a front garden. Besides the ADU being located further inside the street, the view of the street beyond the new house is much deeper and more enjoyable.

在两座房子之间创造一个平衡。由于我们知道新房子将被用作出租单位，隐私是设计的重要考虑之一。为了保护隐私，两栋房子的后院都没有窗户，但新房子的走廊上有一个超大的天窗，允许自然光和空间的环境气氛。法规规定的后退允许在房子后面有另一个亲密的户外空间，可以用作菜园或其他用途。除了彼此之间的隐私，还有两个设计元素需要考虑。

Create a balance between the two houses. Since we know the new house will be used as a rental unit, privacy is one of the important considerations of design. There are no windows looking into the backyard of both houses for privacy but an oversized skylight in the hallway in the new house permits natural light and ambient mood in the space. The setback by the code allows another intimate outdoor space in the back of the house possible to utilize as a vegetable garden or for other purposes. Beyond the privacy for each other, there are two more design elements to consider.

首先，许多ADU是由车库空间改建的，而车库主要是作为房主的一个大的存储空间，那么他们就会立即失去存储空间。为了弥补存储空间的需要，在现有的房子里分配50平方米的可利用空间作为存储空间。第二，新房面向现有房屋的墙面或立面是现有房屋后院的重要景观。他们需要为现有房屋的居民带来美感。

First, many ADU is converted from garage space which is mostly used as a big storage space for the homeowners then they lose storage space immediately. To compensate for the need for storage space, 50sqf of accessible space is allocated to the existing house for storage. Second, the facing walls or elevations of the new house toward the existing house are important views from the backyard in the existing house. They need to be aesthetically pleasing for residents in the existing house.

建筑物的形状和材料成为一种特征。我们应用了一种新的建筑装饰技术，使这个隐藏的单体物体在两座房子之间接地。关于外部的材料，来自韩国的古老的建筑技术已经在房子的墙壁上进行了试验。它被称为 “Jongseok Mijang”，它是在水泥/砂石混合物应用于墙体后的几个小时内进行的刮削过程。在它实际，应用于墙壁之前，已经实施了模拟。碎石的大小和形状的变化，水泥的颜色，以及沙子的数量都会影响完成的结果。它也受到天气的影响。当刮出的口袋在金属饰面的体积中获得阴影效果时，其强大而粗暴的饰面是视觉的。饰面也变得高效节能。

Building shape and material become an identity. We applied a new building finish technique to make this hidden monolithic object grounded between two houses. Regarding the materials for the exterior, the old-time construction technique from Korea has experimented on the walls of the house. It is called “Jongseok Mijang” and it is a scraping process a few hours later after the cement/gravel mixture applies to the wall. The mock-ups had been implemented before it actually, applied to the walls. The variation of gravel sizes and shapes, the cement color, and the amount of sand affect the result of the finish. It is also affected by the weather. Its strong and brutal finish is visual when a scraped-out pocket gets a shadow effect in a metal-trimmed volume. The finish also becomes energy efficient.

墙体为建筑提供的热质量能够在白天吸收热量，在晚上释放热量。这种被动的传递使热量通过墙体的传输变得平滑，并限制了对机械系统的需求。光滑的白色油漆MDO板和铝制外饰与水泥/砾石饰面形成对比。院子里的铺路石延续了与墙体相同的美学。包含的几何形状总是为自然或不可控的材料设定边界，这种对比正在创造更有效的物质性。草皮石铺设成人字形图案，它为景观创造了自然的边缘。砾石与该图案形成对比。从功能上讲，草皮石透水铺路石允许雨水逐渐被自然过滤回土壤中，从而控制和稳定土壤侵蚀的情况。

The thermal mass that the walls provide to a building is able to absorb heat during the day and release it at night. This passive transfer smooths out heat transmission through the walls and limits the need for mechanical systems. The smooth white painted MDO panel and aluminum exterior finish contrast with the cement/gravel finish. The courtyard pavers continue the same aesthetic as the walls. The contained geometry always set the boundary for the natural or uncontrollable materials and this contrast is creating more effective materiality. Turfstone pavers are laid in a herringbone pattern and it generates natural edges for the landscape. The gravels contrast with the pattern. Functionally, the Turfstone permeable paver allows rainwater to be gradually filtered back into the soil naturally, resulting in the control and stabilization of soil erosion.

由规范发起的最小长度的悬空的体积被创造成一个有角度的几何形状。它具有吸引力和功能性。悬空的外部斜线延续了内部的天花板线，完成了矩形的形状。这在起居室/厨房的开放空间中创造了檐口灯。走廊上的天窗将日光带入空间，最小的墙窗保证了隐私，并作为一个焦点设计特征。室内的材料调色板仅限于白色和浅色的桦木胶合板，以创造出更广阔的小空间，通过光和影来识别，并为家具布置提供画布。

The volume initiated from a minimum length of overhang by the code is created into an angled geometry. It is attractive and functional. The exterior angled line of overhang continues the interior ceiling line to complete the rectangular shape. This creates soffit lights in the living/kitchen open space. The skylight in the hallway brings daylight into the space with minimum wall windows for privacy and acts as a focal design feature. The material palette of the interior is limited to white and light birch plywood to create the small space more expansive and recognizable by light and shadow and to give a canvas for furnishing.

Architects: Yeh-Yeh-Yeh Architects
Area : 1000 ft²
Year : 2020
Photographs :Brandon Shigeta
Manufacturers : American Standard, Brizo Kitchen and Bath, Emtek, Fisher & Paykel, ADM Bathroom, Forno, International Window Corporation, Kitchen Aid
Landscape Designer : Yeh-Yeh-Yeh Architects
Project Designer : Jooyoung Chung
Project Manager : Eunjeong Jang
City : Los Angeles
Country : United States