A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Garage Conversion Contractor Across Florence-Graham
A garage conversion in Florence-Graham typically runs $110,000 to $180,000 for a full attached conversion with a bathroom, and $95,000 to $165,000 for a detached garage conversion to a studio or one-bedroom ADU. These ranges include structural work, plumbing, electrical, insulation, drywall, and finishes, but not the separate county plan check and permit fees. If you’re weighing whether to convert a garage on a deep Florence-Graham lot, call us at (424) 358-3068 for a written price before you commit to anything.
We schedule work across Florence-Graham from the field teams dispatched out of our Los Angeles office, and we know this neighborhood’s housing stock. Most of the garages we scope here sit behind 1920s to 1950s bungalows on 50-foot-wide lots. That sounds simple, but the age of those structures and the fact that Florence-Graham is unincorporated L.A. County changes how the permit and plan check process works compared to neighboring cities like Huntington Park or South Gate. Local experience here is not a nice-to-have. It is what keeps your project from getting bounced at plan review.
Why Fielding ADU Torrance Is Florence-Graham’s Preferred Garage Conversion Contractor Company
We are the Garage Conversion Contractor team inside Fielding ADU Builders, an independently owned member of the Garrison Partners family. Garrison Partners has been building to The Garrison Standard since 2006. The Standard is the reason homeowners in Florence-Graham call us after a bad experience with a previous contractor. It comes down to five commitments: show up in the window, put the price in writing, pull permits by the book, leave the site clean, and stand behind the work for a full year.
Reed Calloway leads our crews, and the way he runs a Florence-Graham garage conversion reflects what we have learned from the county plan check process. We hand you a written price before any work starts. Not a ballpark. The number you approve on day one is the number on the final invoice. If something fails inside the first year, our 365-Day Done Right Promise means we come back and correct it at no charge. That guarantee is written on paper, not implied.
Every person who steps onto your Florence-Graham property is background-checked and arrives in uniform. You know exactly who is on your site. And when you call us, a live person answers. No voicemail, no callback queue, whether you call at noon or midnight.
Garage Conversion Permit in Florence-Graham
A Garage Conversion Permit in Florence-Graham goes through L.A. County’s Department of Regional Planning and Building and Safety, not the City of Los Angeles. The first sentence here matters because we regularly see homeowners and even contractors apply City of L.A. assumptions to a county project and get a plan check rejection on the first pass. The county requires a separate plan check review, and fire sprinklers are mandated for garage conversions that become habitable space, which they are not in many incorporated neighboring cities. You need a permit set that accounts for this before you submit. Permit plan check fees alone for a garage conversion in Florence-Graham typically run $4,000 to $9,000 depending on scope, with the total permit cost landing between $8,000 and $15,000 including school fees and county surcharges.
County Plan Check Differences
The county reviews your conversion as a new dwelling unit when it becomes an ADU. Structural drawings, Title 24 energy calculations, and fire sprinkler specifications are all part of the submittal. We prepare the full set in-house before you pay for a single hour of plan check time. That avoids the single most common delay we see: a rejected first submittal over missing sprinkler details or parking replacement requirements that are specific to unincorporated Florence-Graham.
Septic and Well Setback Review
Deep lots in Florence-Graham sometimes still run on septic systems rather than city sewer. Where that applies, the county will not approve a garage conversion as an ADU if new habitable space encroaches on the required setbacks from the septic tank, leach field, or a private well. We map those setback lines before quoting, because a redesign after the initial quote is the kind of thing that gives contractors a bad name here.
Garage Conversion to Living Space in Florence-Graham
A Garage Conversion to Living Space in Florence-Graham means taking an attached or detached garage and turning it into a permitted bedroom, studio, or full ADU with a kitchenette or kitchen and a bathroom. On 50-foot-wide lots, the detached garage at the rear of the property is the most common candidate. The work starts with a structural assessment of the slab and walls, because most of these garages were never engineered for habitation. A complete conversion, from structural upgrades through finishes, typically runs $110,000 to $180,000 for an attached garage and $95,000 to $165,000 for a detached unit, before permit fees.
Detached Garage Structural Upgrades
Florence-Graham’s 1920s to 1950s detached garages often have unreinforced masonry walls and a slab poured without rebar or proper footings. County code requires an engineered foundation when the space becomes habitable. We frequently underpin existing footings or pour new ones, and we reinforce masonry walls before insulating and closing them up. Skipping this step is not an option under county plan check.
Parking Preservation on Narrow Lots
Your lot is likely 50 feet wide, which leaves little room to lose driveway parking. The county requires replacement parking for the converted garage in most cases. Our scopes for Florence-Graham include either a covered carport in the front setback or a compact parking pad that meets county minimums. We walk the lot and measure before we quote, so parking compliance is priced in from day one, not added as a change order later.
Trusted Brands We Service in Florence-Graham
We work with the prefab and modular platforms Florence-Graham homeowners are already researching online, including Abodu, Cover, and Dvele, and we build conventional garage conversions using James Hardie siding where exterior work is required. When the prefab route makes sense, we handle the site work, foundation, utility connections, and the county permit package. When stick-built makes more sense on a tight rear lot, we frame it ourselves. Because we stock common structural hardware and standard interior finish materials for our Florence-Graham jobs, we do not lose days waiting on backordered parts from out-of-state suppliers. The advantage to you is a shorter window between plan approval and dry-in.
Common Garage Conversion Contractor Problems We See in Florence-Graham Homes
- Applying City of L.A. rules to a county project. We see permit sets written for incorporated cities submitted to L.A. County, only to be bounced for missing fire sprinkler specs or wrong parking assumptions. Reconciling those differences costs weeks.
- Underestimating structural work on 1920s – 1950s garages. Unreinforced masonry and a non-engineered slab mean the structure must be upgraded before any finish work starts. A quote that ignores this will not hold.
- Ignoring septic and well setbacks on deep rear lots. Where older properties in Florence-Graham still run on septic, the county’s setback lines can push the conversion footprint or force a redesign. If the line is not mapped before you sign, the price moves after you have already committed.
- Heat and drainage on flat, asphalt-heavy lots. Florence-Graham’s semi-arid climate and sparse tree canopy make passive cooling and cool roof details worth specifying early. Grading and drainage plans are also required by the county for most conversion permits, and flat lots still need positive slope away from the new unit.
Pricing for Garage Conversion Contractor in Florence-Graham, CA
You should see real numbers before you call anyone. Here are our current ranges for Florence-Graham:
- Attached garage conversion to living space: $110,000 – $180,000
- Detached garage conversion to studio or one-bedroom ADU: $95,000 – $165,000
- Garage to bedroom only (no kitchen, household member only): $75,000 – $120,000
- County permit plan check and fees: $8,000 – $15,000, depending on scope
- Fire sprinkler system (county-required for detached ADU conversions): $6,000 – $12,000
- Structural upgrades (foundation, wall reinforcement): $15,000 – $40,000
What moves the price most in Florence-Graham is the age and condition of the garage, whether you are on sewer or septic, and the county’s fire sprinkler and parking replacement requirements. We give you a written line-item price before any work starts. Call (424) 358-3068 to schedule your free estimate.
We Also Serve Cities Near Florence-Graham
Beyond Florence-Graham, our teams cover garage conversions across the surrounding area, including Torrance, Inglewood, Compton, and Redondo Beach. We are the team behind Garage Conversion Contractor in Florence-Graham work every week, and the same Garrison Standard applies on every job, in every city. If you are a homeowner in one of these nearby cities, the written price and one-year guarantee work exactly the same.
Serving Florence-Graham, CA - Our Local Coverage Area
We’re based in the Florence-Graham 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 Garage Conversion Contractor in Florence-Graham
Yes. L.A. County mandates fire sprinklers for detached garage conversions that become ADUs, and that requirement applies in unincorporated Florence-Graham even where neighboring incorporated cities may not require them. Budget $6,000 to $12,000 for the sprinkler system and its separate permit. Call (424) 358-3068 and we will confirm the exact requirement for your specific lot before you submit.
In most cases, yes, but you need a replacement parking plan the county will accept. On a 50-foot-wide lot, that usually means a compact parking pad at the rear or a covered carport in the front setback. We measure the lot and draw the parking solution before quoting, so the county requirement is priced in, not added after you sign. Call (424) 358-3068 for a free site assessment.
If your Florence-Graham property still runs on septic rather than sewer, the county will not approve a garage conversion as habitable space if new construction sits within the required setback from the tank, leach field, or a private well. We map those lines before we quote. That way the footprint we price is the footprint the county will approve. Call (424) 358-3068 for a written price that accounts for your lot’s specific setback lines.
Yes, L.A. County requires a grading and drainage plan for most garage conversions in Florence-Graham, even on flat lots. The plan must show positive slope away from the new living space and manage runoff without pushing water onto adjacent properties. We include this in the permit package we prepare for you. Call (424) 358-3068 to schedule your free estimate and we will explain exactly what your lot needs.
The most common structural upgrades are new or underpinned footings, reinforcement of unreinforced masonry walls, and replacement of a non-engineered slab with a proper foundation. On a deep lot off Gage Avenue, our crew reinforced the walls, poured a new foundation to meet county setback rules, and ran a new sewer line past the existing septic tank, all while preserving the driveway parking the family relied on. Expect $15,000 to $40,000 for structural work depending on the garage’s condition. Call (424) 358-3068 for a written line-item estimate.
Written by Reed Calloway, Owner at Fielding ADU Torrance, serving Florence-Graham through the Garrison Partners family.
