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New two-story modern custom home on a narrow lot in West Hollywood West with a recessed entry and wood slat screen

Custom Home Builder · West Hollywood, CA

Custom Home Builder in West Hollywood

New homes on West Hollywood's narrow single-family lots and hillside streets, designed to the city's envelope, green building rules and neighbors who live a few feet away.

Since 1984License #4391664.9/5 client ratingDesign, permits & construction

Hiring a custom home builder in West Hollywood is a different exercise from building in the hills or the suburbs. The city is about two square miles, mostly apartments and condos, and its single-family lots are narrow, close together and on streets where every neighbor notices a new house. A new home here has to fit a tight envelope, satisfy planning review and still feel generous inside.

Mr Build Co. is a design-build general contractor working in Los Angeles since 1984. We coordinate design, engineering, city approvals and construction for new homes, with one project manager responsible from feasibility to keys.

Building new where single-family lots are scarce

Most West Hollywood single-family homes are in a few pockets: West Hollywood West, the Norma Triangle and scattered streets on the Eastside and north of Sunset. The houses being replaced are usually 1920s to 1950s bungalows and small Spanish or traditional homes, sometimes already altered with rear additions or converted garages.

Because lots are narrow, the design questions come fast:

  • How much floor area and height does the zone allow, and how do upper-floor setbacks shape the second story?
  • Where do cars go, and is a garage worth its footprint?
  • Can a basement add space without pushing the house taller?
  • Would a roof deck add usable outdoor space, and can it be approved?
  • Should the project include an ADU, or a second unit under state law?

If an ADU is on your list, our page on the ADU builder in West Hollywood covers the rules for adding one with the new home.

Roof deck on a new West Hollywood custom home with views toward the Hollywood Hills

Designing for a narrow lot

A good West Hollywood plan pulls light from above and from the rear, because the side yards are a few feet wide and face the neighbor's wall. Light wells, clerestory windows, skylights and an open stair do a lot of work. Upper-floor windows near property lines are placed for privacy, and outdoor space often comes from a rear garden, a second-floor terrace or a roof deck.

Structure is part of that design. Long openings to the garden need steel or engineered beams, and tall narrow buildings need careful lateral design for earthquakes. Basements add shoring and waterproofing next to neighbors' foundations, which an engineer has to plan for in detail.

Energy and comfort are easier to get right in a new house than in a remodel, and a narrow plan helps. Cross ventilation from front to back, deep overhangs or exterior shades on the south and west, and a heat pump system sized to the actual rooms keep the house comfortable without oversized equipment. We settle these choices before plan check, because they feed into the energy compliance report and the city's green building checklist.

Planning review, historic screening and green building rules

West Hollywood's Community Development Department handles both planning and building permits. A new home usually moves through:

  1. Feasibility and jurisdiction. Zone standards for your parcel and confirmation that it is inside West Hollywood. Several zip codes cross into the City of Los Angeles.
  2. Historic screening. The city has a Historic Preservation Commission, designated cultural resources and historic districts. An older house may need evaluation before demolition is approved, and new homes in or next to districts are reviewed for compatibility.
  3. Planning review. Site plan, floor plans, elevations and materials. Depending on scope, review is handled by staff or goes to the Planning Commission, with public notice.
  4. Building plan check. Structural, energy, fire, plumbing, mechanical and electrical review, plus the city's green building requirements for new construction and California's solar requirement for most new homes.

The demolition of the existing house runs alongside this. Our page on demolition and rebuild in West Hollywood covers that part, including tenant and historic checks.

Hillside lots north of Sunset

The streets that climb above Sunset Boulevard bring grading, retaining walls, caissons, drainage and fire safety into the design. Access is tight, deliveries are limited and staging space is minimal. Many of these streets are actually in the City of Los Angeles, so the first step is confirming which city reviews the project.

Framing for a custom home with an attached ADU on a West Hollywood residential street

Cost drivers for a West Hollywood custom home

  • House size, number of stories and whether there is a basement or roof deck.
  • Shoring and foundations next to closely spaced neighbors.
  • Structural steel for open ground floors and large rear openings.
  • Adding an ADU or second unit to the project.
  • Green building and energy features beyond the minimum.
  • Window and door systems, skylights and light wells.
  • Hillside work: grading, retaining walls and access.
  • Finish level and custom millwork.

We work from a fixed, detailed written scope, so each choice shows up in the price before construction. For background on the solar requirement, see our summary of the California solar mandate.

Timeline factors

Approvals usually take a large share of the total time, especially when a hearing or historic evaluation is involved. Construction then moves through demolition, excavation, foundation, framing, rough systems, inspections, exterior and finishes. On a narrow street, crew parking, deliveries and dumpster placement have to be planned around permit-parking districts and neighbors' driveways, which can limit how much happens each day.

Our scope as a custom home builder in West Hollywood

Our scope covers feasibility, design, architectural plans, engineering through our partners, planning and building submittals, demolition, construction and closeout. Read about our approach on the custom homes page, and see how the stages fit together in our design-build process guide. The work moves through our five steps (consultation, design and permits, selections, construction, final walkthrough), and the price is fixed in writing before ground is broken.

Our process

How a project with Mr Build works

Five steps, one team and one point of contact from the first visit to the final walkthrough.

  1. Consultation

    We meet at your home, walk the space, and talk through goals, priorities and budget before anything is drawn.

  2. Design & Permits

    Plans, engineering and energy calculations are prepared and submitted, and we handle plan-check corrections with the city.

  3. Selections

    You choose finishes, fixtures and materials with our guidance, so long-lead items are ordered before they can hold up the schedule.

  4. Construction

    A dedicated project manager runs the trades, inspections and schedule, with regular updates so you always know what's next.

  5. Final Walkthrough

    We walk every room with you, finish the punch list, close out the permit, and hand over warranties and manuals.

Client reviews

What our clients say

★★★★★

“Mr Build handled our complete home remodel from start to finish. Communication was excellent, the workmanship was high quality, and every room now feels more modern, comfortable, and functional.”

Michael S.Studio City, CA
★★★★★

“Mr Build transformed our outdated kitchen into a beautiful, functional space. The team was professional, organized, and kept us updated throughout the project. The finished kitchen exceeded our expectations.”

Jennifer L.Los Angeles, CA
★★★★★

“We hired Mr Build for our bathroom remodel and couldn't be happier with the results. They helped us improve the layout, choose great finishes, and completed everything with impressive attention to detail.”

David R.Encino, CA

FAQ

Custom Home Builder in West Hollywood: common questions

How hard is it to build a new single-family home in West Hollywood?

It is very doable but involves more review than many people expect. West Hollywood has relatively few single-family lots, and new construction goes through the city's Planning Division before building plan check. Depending on scope, review may stay with staff or reach the Planning Commission, with notice to neighbors. Historic screening and the city's green building requirements also apply.

Can I build a home with an ADU on my West Hollywood lot?

Usually yes. State law allows an ADU, and often a junior ADU, on single-family lots, and building them with the new home is efficient because utilities, structure and permits are coordinated once. State law also allows two primary units on many single-family lots, with exceptions such as historic districts. We check which options apply to your parcel.

Are roof decks allowed on new homes in West Hollywood?

Roof decks are a common request on small lots because they add outdoor space without using the yard. They count toward height and are reviewed for privacy and noise effects on neighbors, and the stair or elevator access adds structure. Whether one is approvable depends on your zone and lot, so we raise it in the first planning check.

How long does it take to build a custom home in West Hollywood?

Design and city approvals, including any hearing, historic screening and plan check, can take a substantial share of the timeline. Construction then depends on size, whether there is a basement, structural complexity and finish lead times. Narrow-lot logistics, such as staging and street parking for crews, also affect daily progress.

Is my hillside address in West Hollywood or Los Angeles?

Many hillside streets above Sunset Boulevard carry West Hollywood mailing addresses but are in the City of Los Angeles, where LADBS and LA City Planning handle approvals. Only part of the hillside is inside West Hollywood's city limits. We confirm jurisdiction from the parcel record before design begins, because the rules differ.

From the blog

Helpful reading

Modern ADU behind a West Hollywood home with a car parked in the driveway

ADUs & AdditionsOctober 20, 2026

West Hollywood ADU Parking Rules: What You Need to Know

West Hollywood does not require off-street parking for an ADU, even when you convert the garage. The real decisions are about your own cars, your future tenant and the street outside.

Modern new home roof fitted with rows of solar panels under a clear sky

Construction & PlanningOctober 12, 2026

California Solar Mandate: When New Homes and ADUs Need Solar

California's energy code requires solar panels on most newly built homes, including many detached ADUs. Most remodels and additions do not trigger it. Here is how to tell which side your project falls on.

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  • On-site visit with an experienced builder
  • Clear written scope and pricing
  • Design, engineering and permits handled for you

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