Room Additions & ADUs

Room additions, second-story additions, and ADU construction in Los Angeles, from foundation and framing through final finishes.

(818) 303-3555
  • One team handles structural, trade, and finish work — no separate contractors to line up.
  • Permit coordination and inspections are managed throughout construction, not just at the end.
  • ADU-specific requirements (setbacks, utility connections, egress) are accounted for during planning.
  • Construction scheduling is built to minimize disruption to the existing home.

Overview

Expert Room Additions & ADUs in Los Angeles

Additions and ADUs carry more structural and permitting weight than interior remodels — new foundations, new roof lines, and a full trade buildout. We manage that scope end to end, from site evaluation through final inspection.

What's Included

Scope of Work

  • 01

    Site Evaluation & Planning

    Site conditions, setback requirements, and construction scheduling worked out before foundation work begins.

  • 02

    Foundation & Framing

    Foundation, framing, and roofing built to local structural requirements for the new square footage.

  • 03

    Full Trade Buildout

    Electrical, plumbing, HVAC, and low-voltage systems run and coordinated throughout construction.

  • 04

    Finishes & Handoff

    Interior and exterior finishes installed, followed by final walkthrough and quality assurance.

Testimonials

What our clients have to say about us

57+ Google reviews
"

If you're looking for a contractor you can truly trust, I highly recommend Boris and his team. From the very beginning of our home remodeling project, Boris exceeded our expectations in every way Communication was excellent throughout the entire process. He ke... Read More

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(818) 303-3555

FAQ

Common Questions

A room addition expands the existing home's footprint or adds a second story to it. An ADU is a separate, independently habitable unit — detached or attached — with its own utility connections and requirements.

Most detached ADUs take 4–7 months from permit issuance to completion, depending on size and site conditions. Permitting timelines vary by jurisdiction and are handled as part of our coordination.

Yes. Permit coordination, inspections, and compliance with local building requirements are managed by our team throughout the project.

Site evaluation happens before design is finalized, so soil conditions, drainage, and utility tie-ins are identified early. If something unexpected turns up once foundation work starts, we address it as part of the build rather than treating it as a surprise change order.

Square footage, foundation type, utility connections, and finish level are the main cost drivers. ADUs also carry utility connection requirements that vary by jurisdiction — we walk through the full cost picture during planning.

Still have questions?

Call us directly

Call (818) 303-3555

Areas We Service

Where We Work

Los Angeles County (79 cities)

ActonAgoura HillsAlhambraAltadenaArletaAzusaBaldwin HillsBaldwin ParkBeverly HillsBurbankCalabasasCanoga ParkCanyon CountryCastaicChatsworthCulver CityEagle RockEast Los AngelesEcho ParkEncinoGlendaleGranada HillsHacienda HeightsLa Cañada FlintridgeLa CrescentaLake BalboaLakewoodLancasterLeona ValleyLos AngelesMalibuMission HillsMontebelloMonterey ParkMontroseNewhallNorth HillsNorth HollywoodNorthridgePacific PalisadesPacoimaPalmdalePanorama CityPasadenaPico RiveraPorter RanchQuartz HillResedaSan FernandoSan GabrielSan MarinoSanta ClaritaSanta MonicaSaugusShadow HillsSherman OaksSouth PasadenaStevenson RanchStudio CitySun ValleySunlandSylmarTarzanaTemple CityToluca LakeTopangaTujungaValenciaValley GlenValley VillageVan NuysVeniceWest HillsWest HollywoodWest Los AngelesWest Toluca LakeWestlake VillageWinnetkaWoodland Hills

Ventura County (15 cities)

Bell CanyonCamarilloFillmoreMoorparkNewbury ParkOak ParkOak ViewOjaiOxnardPort HuenemeSanta PaulaSanta Rosa ValleySimi ValleyThousand OaksVentura

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