ADUs & garage conversions
Detached and attached ADUs, garage conversions and junior ADUs on LA lots.
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Los Angeles · LA CountyRD Fast Construction Inc. is a Los Angeles, CA general contractor. We build ADUs, additions and new homes, remodel kitchens, bathrooms and whole houses, and replace roofs across the City of LA and LA County.
One licensed general contractor from the first walk-through to the final inspection.
Detached and attached ADUs, garage conversions and junior ADUs on LA lots.
Kitchens, bathrooms and whole-home renovations, including layout changes.
Shingle and clay tile roof replacement, on its own or as part of a larger project.
More living space without moving.
Ground-up single-family homes built to plan.
Itemized bids for property managers, investors and commercial tenants.
Who issues your permit depends on where the property is. Inside the City of Los Angeles, building permits come from the Los Angeles Department of Building and Safety (LADBS). Other cities in the county, such as Long Beach, Pasadena, Glendale or Downey, run their own building departments. Properties in unincorporated LA County go through LA County Building and Safety.
We confirm the right agency for your address during the estimate, and we handle the permits and inspections for the work we build.
“Rafa and his team helped with a ADU build here in Downey, Rafa was amazing throughout the whole process! Can’t wait to build another ADU at our second property.”
“Rafa is the man!
Probably the best general contractor in Los Angeles.
I worked with him on my bathroom remodeling and my kitchen remodeling and they did a great job :)”
Remodels, ADU site work and roofs from our own crews and roof inspections in the Los Angeles area.








Tell us what you're planning. Call or text (213) 842-1229, in English or Spanish.
We visit the property, review any plans and give you a clear, itemized scope and price before work starts.
RD Fast Construction Inc., a licensed Class B general contractor, manages the crew, trades, permits and inspections through completion.
We are based in Los Angeles, CA and serve Los Angeles County, Orange County and the San Fernando Valley. We come to your property for the walk-through and estimate. Call or text (213) 842-1229, open daily 6 AM to 8 PM.
The City of Los Angeles and cities across Los Angeles County, plus Orange County and the San Fernando Valley. Call or text us with your address and we will confirm.
Inside the City of Los Angeles it is LADBS (Department of Building and Safety). Other cities in LA County have their own building departments, and unincorporated areas go through LA County Building and Safety. We confirm the agency for your address and handle permits for the work we build.
Many single-family and multifamily lots in Los Angeles can add an ADU or junior ADU under California law, but setbacks, utilities, easements and fire or hillside rules can affect what fits. We look at your lot during the walk-through. See our ADU page.
Yes. Re-roofing is part of our general construction work: asphalt shingle and clay tile roof replacement, on its own or combined with an addition or remodel. See our roofing page.
Yes. RD Fast Construction Inc. holds California Class B General Building Contractor license #1105076, licensed since 2023. You can look it up on the CSLB website.
Call or text (213) 842-1229 or send the form on this page. We set up a walk-through, review your plans or ideas, and give you a written, itemized estimate. The estimate is free.
Sí. Se habla español. Llame o mande texto al (213) 842-1229.
Estamos en Los Ángeles, CA. ADUs, ampliaciones, casas nuevas, remodelaciones de cocina y baño y re-techado en la Ciudad y el Condado de Los Ángeles. Licencia Clase B CSLB #1105076.
Call or text us, or send the form, and we'll get back to you to set up a walk-through.
We come to you: walk-throughs and estimates happen at your property. Se habla español.
No obligation. Prefer to talk? Call or text (213) 842-1229.
We'll contact you shortly to schedule your free estimate. Need us sooner?
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