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Convert Your Sacramento Garage into a Permitted Home
Your garage takes up space. Most of the time, cars sit in the driveway and the garage holds boxes. You can change that. A garage conversion turns your existing structure into a real home with its own front door, kitchen, bathroom, and bedroom.
This type of project costs less than building a brand-new backyard house. That is because the roof, walls, and concrete floor are already there. You pay for the interior upgrades, not for pouring a new foundation.
ADU Contractors Sacramento handles garage conversions from the very first inspection to the city’s final sign-off. We measure your space. Next, we draw the permit plans. Then we do all the construction work. One phone number covers everything.
Which Garage Type Do You Have
Not all garages are built the same way. We plan the conversion around your specific structure.
Attached Garage Conversions
An attached garage shares a wall or roofline with your main home. Converting it adds living space directly next to your house. This layout works well for in-law suites because the family can share an interior door if needed.
The shared wall between the new unit and the main house must slow the spread of fire. We cover the shared wall framing with a 5/8-inch Type X gypsum board. Before we seal the wall, we verify the drywall surface thickness at multiple points using an ultrasonic dry film thickness gauge. This tool reads wall thickness without cutting into the surface. This satisfies CRC Section R302.6, which sets the fire-separation rating between an attached garage living unit and the primary dwelling.
Detached Garage Conversions
A detached garage sits on its own, separate from the house. Converting it gives the occupant full privacy. Tenants love the separate yard space. This type of conversion also works well as a guest cottage or a small rental home.
Cold air and moisture can enter through small gaps in the framing. We seal all exterior wall gaps with polyurethane foam sealant. Next, we verify the climate control system is charged correctly using an electronic refrigerant scale. This scale measures the exact refrigerant weight added to the cooling unit. This work complies with CRC Section R303.9, which requires all habitable rooms to maintain a minimum indoor temperature.
Carport to ADU Conversions
A carport is an open structure with a roof and support posts but no walls. Enclosing it with framed walls creates a new living space. This is often the least expensive way to add a permitted unit because the roof and slab are already in place.
We anchor the new wall framing to the existing concrete pad using galvanized post-base connectors. Each structural bolt is tightened to a specific rating using a calibrated digital torque multiplier. This tool reads exact torque values on a digital screen so there is no guessing. This connection method satisfies CRC Section R301.2, which sets the seismic and wind load design rules for residential wall framing.
Carriage House ADUs (Above-Garage Suites)
Some garages have enough headroom above the main floor to build a second-level living space. This type of project keeps the ground-floor parking intact. The upper unit gets its own staircase and exterior entrance.
The upper floor needs a flat, strong base. We frame it using engineered wood I-joists. We check that the joists are level across the full span using a precision water level with digital display. This tool uses water pressure to read elevation differences at two points, even far apart. An uneven floor in the upper unit causes doors to bind and tiles to crack. This framing step satisfies CRC Section R301.1.1, which sets the structural performance standards for wood floor framing systems.
Six Reasons Our Work Stands Out
We Start with a Full Structural Inspection
We walk through your garage before we design anything. We look at the roof trusses, the wall framing, and the concrete floor. We check for rot, cracks, and any signs of moisture. This tells us exactly what needs to be upgraded.
We Understand Sacramento's Garage-to-ADU Rules
The City of Sacramento and Sacramento County each have their own review process. Both look at fire separation, egress windows, ceiling heights, and sewer connections. We know what each plan checker wants to see. This cuts down on revision rounds and keeps your project moving.
Your Estimate Does Not Change Mid-Build
Before any work starts, we put every cost in writing. The estimate lists plans, permit fees, concrete prep, framing, windows, plumbing, electrical, and finishes. Nothing gets added without your approval first.
We Do Not Pass Your Job to Strangers
Our carpenters, plumbers, and electricians work directly for us. No third-party subcontractors you have never met. This keeps communication clear and the quality consistent across every part of the build.
We Track Your Permit for You
Permit offices in Sacramento can be slow. We submit your plans, answer every city comment, and follow up until the permit is approved. You do not have to make a single call to the city.
We Build to Code the First Time
Our team reviews each phase of work before the city inspector arrives. This means your project passes inspection on the first visit and does not sit idle waiting for a re-check.
The Four Steps We Follow on Every Garage Conversion
Every garage is different, but our construction sequence is the same. Here is the exact order of steps we follow on every project.
STEP 01
Seal the Concrete Floor
We clean the slab and apply a moisture barrier. This stops ground dampness from rising through the concrete and ruining the finished floor above it.
STEP 02
Close the Garage Door Opening
We remove the overhead door and frame a new wall in its place. This wall includes windows and a front entry door.
STEP 03
Lift the Ceiling to Code Height
We modify the roof framing so the interior meets the minimum ceiling clearance for a habitable room.
STEP 04
Connect the Drain & Water Lines
We run new plumbing for the kitchen and bathroom and tie those lines into your existing sewer connection.
Ready to Get Started?
Your garage sits there every day taking up space. It can become a permitted home that earns rent, houses a parent, or gives you a place to work quietly.
We start with a free on-site review. We walk through the garage with you. We check the ceiling height, the slab condition, the roof framing, and the sewer access. By the time we leave, you know exactly what the conversion will take and what it will cost.
No pressure. No guessing. Just clear answers from a team that does this every day across Sacramento.
Your Garage Conversion Questions, Answered
Is a garage conversion less expensive than a new backyard ADU?
Yes. You skip the foundation pour, the concrete forming, and most of the exterior framing. Those are the most expensive parts of a new build. You still pay for plumbing, electrical, insulation, and finishes, but the total cost is lower.
Do I have to add new parking spots to replace the ones I lose?
No. California state law removed that requirement when you convert a garage to an ADU. You do not have to build a new parking space anywhere on the lot.
What is the lowest ceiling height allowed in a converted garage?
Any room people sleep, cook, or live in must have at least 7 feet of clearance. Bathrooms and hallways can be a little lower. If your garage ceiling is below 7 feet, we raise the roof trusses or lower the floor to meet the rule.
How do you stop the concrete floor from getting damp?
Garage slabs absorb moisture from the ground below. We apply a two-part epoxy moisture barrier directly to the concrete before any flooring goes down. This layer blocks vapor from rising and keeps the finished floor dry.
Can you convert an alley-facing garage in Midtown Sacramento?
Yes. Alley-access garages convert very well. The alley gives the tenant a private entrance that is completely separate from the main house. Also, the alley makes it easy to bring in lumber and other materials during construction.
Do converted garages need solar panels?
No. California’s solar panel rule applies to newly constructed detached structures. A garage conversion reuses an existing structure, so solar is not required. The only exception is if a full home energy upgrade is triggered by the scope of work.
What kind of heating and cooling system goes into a converted garage?
We installed a ductless mini-split heat pump. It heats in winter and cools in summer. It does not need ductwork. Also, the tenant controls their own thermostat without affecting the main house.
How long does a garage conversion take from start to finish?
Most projects take three to five months. That includes two to four weeks for permit review, four to eight weeks of active construction, and a final inspection. The timeline is shorter than a new build because the structure is already standing.