ROM BuildersADU & Custom Homes · San Diego Call (619) 566-6586

Home additions

Home additions in San Diego

Love your neighborhood but need more room? An addition gives you the space without the move, built to look like it was always part of the house.

Additions we build

  • Bedroom and bathroom additions

    Room for a growing family, a returning adult child, or guests.

  • Primary suites

    A new bedroom, bath, and closet, set apart from the rest of the house.

  • Ground-floor suites

    Single-level, accessible living for a parent or after an injury.

  • Kitchen and family room expansions

    More space where everyone gathers.

Built to match your house

A good addition matches the rooflines, materials, and proportions of the existing home. Our architects design it that way from the start, and you see it in 3D before construction begins.

Inside, we tie the new space into your existing structure, plumbing, electrical, and heating and cooling, and we build to current California building codes.

Add on or move?

Moving means selling costs, a new loan, and leaving schools and neighbors behind. An addition keeps all of that. We help you compare honestly: during the free consultation we look at what your lot allows and what an addition would involve, so you can decide with real information.

Common questions

Can you match my home's style?

Yes. Our architects design the addition around your existing rooflines, siding, windows, and interior finishes.

Do I need a permit for an addition?

Yes, additions need building permits. Our team prepares the plans and handles the permit process.

Can I stay in my home during construction?

Often yes, depending on the scope. We plan the work to keep your home livable and talk it through with you before we start.

Do you help with financing?

We can help you look into financing options for your project.

Ready to talk about your project?

The first visit and feasibility check are free, and we can help you look into financing.

Call (619) 566-6586 · Free consultation