Second-Story ADU Over a Garage in Los Angeles

What the Finished ADU Shows

This Los Angeles ADU sits on top of a two-car garage, making the most of the lot. A stucco exterior, black wall lanterns, and a wide wraparound deck with horizontal black railings give it a clean, modern look, and an exterior staircase leads up to a navy front door. Inside, wood-look floors run throughout. The kitchen has white Shaker cabinets with brass pulls, a stainless gas range, and a stainless fridge, with a stacked washer and dryer behind a door nearby. Ductless mini-splits, recessed lighting, and generous closets keep the bedroom and living space comfortable and practical.

Why Building Above the Garage Works

On many Los Angeles lots, there is not much yard to give up for a new unit. Building over the garage solves that. The parking stays below, and the ADU gets height, light, and a bit of privacy above the yard. Here, the wraparound deck acts as an outdoor room, and the black railings and lanterns give the stucco walls a clean, modern edge. It is a smart way to add a home without adding a footprint. Learn more on our ADU contractors page.

How We Run Your Second-Story ADU Build

A second-story ADU in Los Angeles needs careful structural planning, because the level below has to carry a full home above it. We start with a free consultation and a look at the lot and any structures already on it. Then we handle engineering, drawings, permits, and construction under one contract. Details like the exterior stair, deck drainage, and railing heights are worked out early so they pass inspection and feel solid underfoot.

More of Our ADU and Garage Work

For another project that builds up from a garage, see this garage conversion with a second story in Arcadia. Closer to the city, this complete ADU build in LA shows another full unit. If you are weighing a garage project, our garage conversion ADU page explains the options.

Second-Story ADU in Los Angeles: Common Questions

How much does a second-story ADU cost in Los Angeles?

Building above a garage adds structural work, so it often costs more than a ground-level unit of the same size. Our guide to second-story addition costs and permits covers the structural side, and our ADU cost guide covers the rest.

Can you build an ADU on top of an existing garage?

Often, yes, but it depends on the foundation and framing. Sometimes the garage can be reinforced, and sometimes it makes more sense to rebuild it. An engineer's review tells you which.

Is a wraparound deck worth adding?

It gives a second-story unit outdoor space without using any yard. It also makes a natural landing for the exterior stairs.

Where does the laundry go in an ADU like this?

A stacked washer and dryer behind a door fits into a closet-sized space. It is one of the easiest ways to make an ADU feel like a full home.

Do I need a permit for a second-story ADU?

Yes. It needs plans, structural engineering, and city approval. We prepare the drawings and handle the submittals and inspections.

How long does a second-story ADU take?

Construction usually runs several months after permits, plus time for design and plan check. Structural and utility work can add to the schedule, and we give you realistic dates up front.

How do I pick a builder for an ADU like this?

Look for a licensed, insured team that has built above garages before and can show finished work. Our list of the best ADU builders in Los Angeles explains what to ask.