ADU Construction in Carson
Serving 90745 · 90746 and Torrance, Gardena, Long Beach
If you were designing the ideal conditions for building a small second dwelling, they would look a lot like a Carson back garden: level ground, a driveway a concrete truck can use, no slope to engineer, no coastal corrosion specification, and a city that takes its applications online. This is where a given budget buys the most finished building.
Real projects. Real prices.
73 finished remodels published with their final price — nothing hidden.
What our finished LA work actually cost: 27 kitchens ran $23k–$84k, median $50k; 28 bathrooms $28k–$105k, median $38k; 17 whole-home remodels $36k–$440k, median $150k. Real final prices from our own job records, not estimates.
$30,000 An emerald herringbone shower behind glass, with brass fittings and a walnut double vanity.
$34,800 White uppers over warm grey shaker lowers, white quartz, and a stainless chimney hood.
$45,000 Rust and blue slate-tone tile over a pebble mosaic shower floor, with bronze fittings.
$84,000 Warm grey shaker cabinetry with quartz counters, plus floating vanities in dark stone tile.
$237,000 Deep green tile floor-to-ceiling, a farmhouse sink, living space open to the patio.
$279,000 White shaker cabinetry, granite counters, and a tan subway tile backsplash.
Second units on flat Carson lots
Flat ground is a budget line
No retaining, no stepped foundations, no crane, no hauling material up a hill. The money that a hillside project spends getting to the site, a Carson project spends on the building itself — which is why the same drawings cost differently in different postcodes.
Services across a short garden
Power, water and drainage still have to reach the unit, and on a tract lot that is a short, well-understood run. We scope it at design stage so it is a line item rather than a surprise in the trench.
Designing two households onto one lot
The technical work here is easy; the design work is privacy. Where the windows look, where each front door faces, and how the garden divides so both households keep one — that is what makes a second unit pleasant rather than merely legal.
A city process with a portal
Carson's Building & Safety Division reviews the plans and applications are submitted online. A complete, coordinated submittal moves predictably here; an incomplete one waits, the same as anywhere.
Written by Onn Cohen-Meguri, founder and designer at Design Onn Point — 12+ years in business, 1,200+ finished Los Angeles projects. CSLB #1133368.
Pricing in Carson
Market estimate, not our own project data.
Talk to Onn about your Carson adu construction.
Free consult, no obligation. Onn reads every inquiry personally — and aims to reply within one business day.
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