Room Additions in Beverly Hills

Beverly Hills reviews design on its own terms. In the Central Area, any project with work visible from the public street enters design review, and a room addition that changes a street-facing elevation qualifies. Two tracks exist. A design prepared by a licensed California architect that reads as a defined architectural style under the city's Single Family Style Guide can be reviewed at staff level, and the City's Urban Designer decides whether the design meets that bar. Everything else goes to the Design Review Commission.

The practical consequence is sequencing. Elevations, materials, window profiles, and landscape treatment all sit in front of the reviewer at the same time, which means the design has to be genuinely resolved before the permit application carries any weight. Reviewers weigh how the addition sits against the streetscape, its scale and massing, and the landscaped character of the block. Our estimating desk builds the schedule around that reality and confirms whether your property falls inside the Central Area boundary before we commit to a review path.

Matching an addition to a 1920s Spanish Colonial, a mid-century post-and-beam, or a Georgian revival is finish work before it is framing work. Our field team measures the existing roof pitch, eave depth, fascia profile, and rake detail, then builds the new roof to those dimensions instead of a modern default. Stucco is matched by sample panel, floated to the same texture and hand troweled where the original was hand troweled. Mortar color and joint tooling get matched on masonry. Window sightlines hold because we order to the existing rail and stile dimensions instead of accepting stock proportions.

Interior and exterior painting is self-performed under our own C-33 license, which keeps color match, sheen, and substrate prep on one crew answering to one standard. Where a discontinued tile, roof profile, or trim run is involved, our field team sources a match or salvages before the detail is committed. The seam between old and new is the detail every visitor reads first. We build it to disappear.

A primary suite wing is a small building with its own systems. It carries a bath with dedicated ventilation and a full waterproofing assembly, a dressing room that needs its own circuits and even high-CRI light, and a bedroom that has to be acoustically separate from the rest of the house. We detail those separations early. Staggered stud walls, resilient channel, mineral wool in the cavities, and solid-core doors with proper seals do more for sleep than any finish selection.

Gallery corridors and stair halls carry the art. That means controlled indirect light, wall assemblies flat enough to read under raking illumination, and blocking placed for the weight before the drywall closes. Radiant floors, steam showers, freestanding tubs with concealed supplies, and slab-matched stone runs are sequenced so our finish crew is never correcting a rough-in that was set wrong. Selections are locked before framing reaches the point where a change becomes demolition.

We do not price an addition off a walkthrough impression. A room addition ties new framing into an existing load path, and the existing house decides what is possible. Our field team opens what needs opening, documents the foundation type and depth, checks framing spans and the shear condition, and hands real dimensions to the structural engineer. Where soils or slope conditions warrant it, we bring geotechnical work in before the design freezes.

The engineered set, Title 24 energy compliance, survey coordination, and plan check corrections all sit inside our scope. Permits are pulled under our license. Your project lead tracks corrections through the city and reports on the same weekly cadence from submittal through final inspection. Conditions of approval that come out of design review are folded into the drawings by our team, not handed back to you as a list. Nothing about the approval path becomes your errand.

Beverly Hills streets notice construction. Our crews arrive within posted hours, stage material inside the property line, and leave the sidewalk and gutter clean at the end of every day. Deliveries are scheduled so trucks never stack on the street. Dumpsters stay covered and get swapped before they overflow.

Inside the house we build dust barriers with zippered access and run negative air where the work meets occupied rooms. Floors are covered with hardboard rather than sheeting that slides underfoot. Existing finishes near the work are masked and protected before demolition starts. Kitchens and bathrooms the household relies on stay usable unless we have agreed otherwise in writing. Our crews use a designated entry and a designated restroom, and they do not roam the house. Every phase ends with a broom-clean site, including the exterior staging area and the street frontage.

We take a limited number of Beverly Hills additions at one time so the same field team stays with your project from demolition through punch list. Your project lead is your single point of contact. Our estimating desk prepares a scoped, line-item proposal after the on-site visit instead of a verbal figure at the curb, and the scope names the assemblies, the allowances, and the exclusions in plain language.

The firm holds a Class B General Building license and a Class C-33 Painting and Decorating license, with license holder Sebastian Moreno Rivera. We are fully insured, we carry a one-year workmanship warranty on everything we build, and we have completed more than 400 projects across Los Angeles. The on-site estimate is free. Call (949) 558-9738 or reach us at buildanddecorconstruction.com to schedule a walkthrough of your property.