Home/Where we build/Calabasas
Custom home builder in Calabasas, for the estate lots and the gated streets.
Ground-up custom homes, estate additions and whole-house remodels, inside the gates and out. Addition Building & Design is a family-run design-build firm with an office on either side of Calabasas, and a 5,000 square foot Mediterranean here to show for it.
Photograph · the Calabasas Mediterranean
Calabasas
Estate work, with a review board in the room.
Calabasas is estate country: large lots, long driveways, and the gated communities that set their own rules on top of the City's. A custom home here is a bigger building and a longer conversation, with an architectural review board to satisfy before the permit and a fire zone that shapes every roof, vent and window. We have built the 5,000 square foot Mediterranean, the home theater and the study, and we know what the review boards ask for because we have answered them.
Mike Ross holds the license, signs the contract, settles the design with our design partners, has it engineered by our structural engineers, pulls the permit and walks the site. Christine Ross runs the business. Four to five projects a year, because that is how many the family can personally be present for.
The work here
Calabasas and the canyons beside it.
Bell Canyon, ground up
A modern farmhouse in the gated canyon a few minutes west of Calabasas. The firm's featured project.
Pool house and outdoor room
The estate accessory building, done as part of the house rather than an afterthought.
Outdoor living, Holmby Hills
The same outdoor-room thinking a Calabasas lot asks for, built on the Westside.
What a Calabasas project involves
Three things a Calabasas build has to satisfy.
The review board
Inside the gates, the community's architectural committee reviews materials, colors, height, landscape and construction hours before the City of Calabasas sees the drawings. We design to the guidelines from the first sketch and put the review on the schedule, so it is a step, not a stall.
The fire zone
Much of Calabasas sits in a very high fire hazard severity zone. California's wildland-urban interface standard applies: ignition-resistant assemblies, ember-resistant vents, tempered glazing, decks detailed for embers. How we build to it.
The scale
A 5,000 square foot house is a different schedule, a different site plan and a different set of trades from a valley addition. Keith, our scheduler and job cost specialist, builds the timeline and tracks every dollar against it; Juan, our superintendent, is the daily presence on site.
A Calabasas voice
Mike saved us $10,000 in one evening by sharing his advice based on his experience! How is that for a builder?Lisa L · Calabasas · whole-house remodel
A family firm
You get the people whose name is on the firm.
You work with the family that owns the company, on site, through every phase. A builder with forty years in Los Angeles, a daughter carrying the firm forward, and one phone number: 310.617.2722.
Questions Calabasas families ask us
The answers before you commit.
Yes. Gated communities add an architectural review board to the City's permit, with rules on materials, colors, height and construction hours. We build the review into the schedule and the drawings from the start.
A 5,000 square foot Mediterranean custom home, a home theater and a study among the estate work, and a traditional kitchen. The Bell Canyon modern farmhouse, a few minutes west, is on the same list. The work.
Both. Sherman Oaks is east on the 101, Westlake Village is west, and the family drives to your property either way. How to reach us.
Much of Calabasas sits in a very high fire hazard severity zone, so California's wildland-urban interface standard applies: ignition-resistant assemblies, ember-resistant vents, tempered glazing, decks detailed for embers. We design to it from the first sketch.
We walk the property first, then build a line-item, fixed scope, tell you when that price locks, and put every change in writing before it happens. How we build.
Elsewhere in the valley and the east
Private Consultation
Begin with a conversation.
We take on a select number of significant projects each year. If you are considering a custom estate, a hillside build, or a full transformation, we would be glad to walk the property with you.