







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Inglewood
Adding space to an Inglewood home means navigating flat-lot drainage, the city’s own ADU ordinance layered over state law, and permits that often demand a second look before framing starts. We scope the job the right way from day one: a written price, a defined schedule, and no surprises at the inspection counter. Our crews serve Inglewood regularly, from the streets around Morningside Park to the blocks east of Prairie Avenue. Call (903) 568-7222 and we will walk your lot with you before you commit to anything.
Key Takeaways
- Inglewood lots are flat and tight. Drainage and setbacks drive more change orders here than almost anywhere else in the South Bay.
- You get a written price before work starts. Not a verbal range. A number on paper.
- We build with James Hardie cladding and prefab systems from Abodu, Cover, and Dvele. The site work is always done right first.
- Every project carries the 365-Day Done Right Promise. If it is not right within a year, we make it right.
Why Benson ADU Builders Is Inglewood’s Preferred Home Addition Contractor Company

Inglewood homeowners call us because we show up with a plan, not a pitch. Troy Eastman set the standard for how our crews operate: background-checked technicians in uniform, a live person on the phone around the clock, and a written guarantee stamped on every project. You will never wonder who is walking onto your property.
Our Home Addition Contractor team knows what Inglewood’s building counter expects. We have walked projects through plan check near the SoFi corridor, Century Boulevard, and the neighborhoods off La Brea. That local familiarity means fewer revision cycles and a realistic calendar from the first conversation.
Dispatch and scheduling are coordinated from our Los Angeles office, and crews serve Home Addition Contractor in Inglewood locally. When you call, a person answers. When you text, someone responds. When work starts, you get photo updates and a digital invoice payable by link. That is the Relay Visibility Guarantee, and it is the only way we operate.
Second Story Addition Contractor in Inglewood
A second story addition contractor takes on a different job in Inglewood than in most of Los Angeles County. These are not sprawling hillside lots with room to cantilever. Inglewood’s parcels are tight and level, which means the engineering conversation starts with your existing foundation, not just the new framing above it.
Most second story additions in Inglewood run between $180 and $320 per square foot in total project cost, depending on whether you are adding a single bedroom suite or a full upper level with bath. A 600-square-foot upstairs addition typically lands between $110,000 and $195,000. The number moves based on foundation reinforcement, stair placement, and whether your existing first floor needs seismic upgrades to carry the load.
Foundation and Load Reality
When we scope a second story on a 1920s or 1950s Inglewood bungalow, the first question is always the same: can the existing slab or raised foundation carry it? Many cannot without retrofit. We bring in a structural engineer early and price the reinforcement before you sign anything. That way the written price you get is the one you pay.
Plan Check and Drainage Review
Inglewood’s building department reviews second story additions for more than just height limits. The flat terrain means the city wants to see how new rooflines shed water onto your lot and your neighbor’s. If drainage plans are not submitted properly, the project stalls at the counter. We handle that paperwork so you do not have to.
Garage Addition Contractors in Inglewood

Garage addition contractors work a specific niche in Inglewood, where detached and attached garages from the mid-century building boom are everywhere. These structures were built for cars, not living space, which means conversion or expansion requires more than drywall and a window. You are dealing with foundation work, insulation, electrical service, and often sewer line relocations.
An attached garage addition in Inglewood typically costs $40,000 to $85,000 for a finished room with proper insulation, electrical, and flooring. A detached garage addition or full ADU conversion runs higher, usually $90,000 to $160,000 depending on whether you need a new foundation pour or can build on the existing slab. Those ranges include the finish work. They do not include surprises we never saw coming.
Detached Garage Considerations
Detached garages on Inglewood lots often sit at the rear property line, which triggers setback review from the city. The ADU ordinance allows certain encroachments, but every lot is different. We verify setback compliance before we quote, so you are not paying for a redesign after plan check rejects it.
Slab and Drainage Work
Flat-lot drainage is the biggest cost driver we see on garage additions in Inglewood. If your garage floor sits below grade or water pools at the base after rain, we address it before framing begins. A swale, a foundation drainage detail, or a raised slab adds cost up front but prevents rot and water intrusion later. It is the difference between a room that lasts decades and one that needs repair in two years.
Trusted Brands We Service in Inglewood
We build with materials and systems Inglewood homeowners can research themselves before they ever sign a contract. James Hardie siding and trim goes on many of our additions because it handles the sun and coastal air well and looks sharp on the bungalow and Spanish-style homes that dominate Inglewood streets. For prefab and panelized structures, we work with Abodu, Cover, and Dvele, and our crews keep a stock of the specific components and fasteners those systems require. That means shorter turnaround when a panel arrives damaged or a trim piece needs to match mid-project. You get brand-name quality with a local crew doing the site work that actually determines how the project holds up.
Common Home Addition Contractor Problems We See in Inglewood Homes
- Flat-lot drainage surprises: Inglewood parcels are famously level, which means water does not run off the way it does in the hills. If a contractor quotes you without walking the lot, you will likely face a drainage revision mid-project and a bill to match.
- Setback miscalculations: Many garages and older additions were built closer to property lines than current code allows. We have seen quotes go sideways when a city review flags a setback issue after framing has already started.
- Foundation assumptions: Inglewood has plenty of 70- and 80-year-old homes with foundations never designed for a second story. Scoping an addition by phone without checking the slab or raised foundation leads to expensive surprises.
- Prefab treated as plug-and-play: Panelized systems from brands like Abodu and Cover are excellent, but they still need site work, utility tie-ins, and foundation prep. The shell is the easy part. The ground it sits on is where Inglewood makes you earn it.
Pricing for Home Addition Contractor in Inglewood, CA
You should know the ballpark before you tap call. Here is what Inglewood projects actually cost with us, and what moves the number.
| Project Type | Typical Range in Inglewood |
|---|---|
| Room addition (single room, ground level) | $55,000 – $105,000 |
| Second story addition (600 sq ft) | $110,000 – $195,000 |
| Garage addition (attached, finished) | $40,000 – $85,000 |
| Detached garage addition / ADU | $90,000 – $160,000 |
| Bump-out addition (kitchen or bath) | $35,000 – $75,000 |
What drives the price in Inglewood specifically: drainage corrections, foundation reinforcement, and plan-check revision cycles from the city’s ADU ordinance. We put every line item in writing before work starts, so nothing shifts at the door. Call (903) 568-7222 for a free written estimate on your project.
We Also Serve Cities Near Inglewood
Our crews cover the surrounding South Bay and Westside communities, including Hawthorne, Culver City, El Segundo, and Lawndale. If your home sits near the Inglewood border or in a neighboring ZIP, we can likely help, and the same written pricing and 365-Day Done Right Promise apply.
Serving Inglewood, CA - Our Local Coverage Area
We’re based in the Inglewood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Home Addition Contractor in Inglewood
You need a separate building permit for any second-story addition in Inglewood, issued through the city’s building and safety department. The permit application triggers plan check, which reviews structural engineering, setback compliance, and drainage. It does not simply roll into any existing permit on the house. We prepare and submit the full package, including the drainage study the flat lots around Inglewood often require. Call (903) 568-7222 and we will tell you exactly which permits your project triggers.
Most garage additions in Inglewood take 4 to 7 months from the first call to final inspection. Plan check alone runs 4 to 8 weeks, and flat-lot drainage review can add time if the city flags your project for additional analysis. Construction itself is usually 8 to 14 weeks depending on finish level. We give you a calendar in writing so you are never guessing when the crew shows up or when the inspector arrives.
The honest answer: drainage corrections, foundation reinforcement discovered after demo, and plan-check revisions requested by the city. On flat Inglewood lots, water management is the most common add-on, because existing slabs were never designed to shed water around new living space. We price these risks into the written estimate before we start, using our experience with Inglewood’s review process, so the price you sign stays the price you pay. Schedule a free estimate today at (903) 568-7222.
Yes, prefab and panelized systems are permitted in Inglewood, and we build with Abodu, Cover, and Dvele panels regularly. The panel system still requires local permits, a foundation, utility tie-ins, and compliance with Inglewood’s ADU ordinance and drainage standards. The prefab shell does not bypass the site work. That is where our local crew earns the price.
The answer starts with your foundation and your lot’s drainage pattern, not the size of your yard. Inglewood’s flat parcels often favor garage conversions or ground-level additions when the existing structure cannot carry a second story without expensive retrofit. A second story works when the foundation passes engineering review and the lot has room for the required setbacks. We evaluate both options side by side, in writing, before you commit to either. Call (903) 568-7222 for that comparison at no cost.
Get Your Free Inglewood Estimate

Whether you are planning a second story off Morningside Park, a garage conversion near the SoFi corridor, or a bump-out on a quiet street off Century Boulevard, we will scope it the Inglewood way: written price, real schedule, drainage handled before framing starts. Call (903) 568-7222 and talk to a person who knows this city’s building department. Free estimates, zero pressure, and a 365-Day Done Right Promise on every project we build.
Written by Troy Eastman, Owner at Benson ADU Builders, serving Inglewood and the surrounding South Bay communities.


