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

Chula Vista

ADU and home addition builder in Chula Vista

Whether your home is on an established street in western Chula Vista or in one of the newer communities to the east, Rom Builders designs, permits, and builds the extra space your family needs, in English or Spanish. We are an ADU builder for Chula Vista families who want one team from plans to keys.

Two very different Chula Vistas

Western Chula Vista has older neighborhoods with a mix of home ages and lot sizes. Many lots have room behind the house, which makes a backyard ADU or a garage conversion worth a close look, and older homes may need structural or system upgrades when new rooms tie into them.

East of I-805, communities like Eastlake, Otay Ranch, and Rolling Hills Ranch are newer and master-planned. Homes are younger, but lots are often smaller and many have an HOA. California law limits how far an HOA can block an ADU, but its design rules can still apply, so we review them early.

Permits in Chula Vista

Chula Vista is its own city, so projects here are permitted by the City of Chula Vista, not the City of San Diego. Nearby Bonita is unincorporated, so projects there go through San Diego County. We confirm which agency covers your address first, then our architects, engineers, and permit expediters prepare the plans and take them through.

What we build in Chula Vista

  • Backyard ADUs

    A separate small home for a parent or a grown child, or a rental where local rules allow. See our ADU page.

  • Garage conversions

    Reusing the garage for a permitted living unit. See garage conversions.

  • Home additions

    Bedrooms and ground-floor suites designed to match the house. See home additions.

  • Second stories

    More bedrooms on a smaller lot, without losing the yard. See second-story additions.

  • Custom homes

    New homes on your lot, including tear-down rebuilds. See custom homes.

Family close by

Many Chula Vista families call us because a parent is moving in, or a grown child needs a place of their own on the same property. An ADU or a ground-floor suite gives them independence while keeping everyone close. We talk through the options with you, in English or Spanish, at the free first visit.

Nearby areas

We also build in National City, Bonita, Imperial Beach, Spring Valley, and La Mesa, and across San Diego County within about 50 miles of our office. See the full service area, or contact us for a free visit.

Common questions

Who issues building permits in Chula Vista?

The City of Chula Vista. Bonita addresses are in unincorporated San Diego County, where the County issues permits. We confirm which applies to your address before design starts.

My home in Eastlake or Otay Ranch has an HOA. Can I build an ADU?

California law limits how far an HOA can block an ADU, but its design rules can still apply. We review your HOA's rules early and design with them in mind.

Is my lot big enough for an ADU?

It depends on lot size, setbacks, utilities, and local rules. We check your property for free at the first visit and tell you what fits.

¿Hablan español?

Sí. We work with clients in English and Spanish from the first visit to the final walk-through, and we help you look into financing.

Do you work in the older neighborhoods of western Chula Vista?

Yes. Older homes there often need the foundation, framing, or electrical checked when new rooms tie in, and our engineers design any upgrades before the plans go to the City.

Planning a project in Chula Vista?

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

Call (619) 566-6586 · Free consultation