New Construction in Los Angeles
New construction in Los Angeles most often begins with a lot that already holds an existing structure. When that structure is too small, sits on a compromised foundation, or cannot support a second story without replacing most of the building anyway, a tear-down rebuild tends to be the cleaner path forward. The city stretches across roughly 470 square miles of housing built over more than a century, from 1920s bungalows in neighborhoods like Hollywood and Koreatown to postwar valley tracts and stacked hillside homes, so each lot review starts fresh. Horizon Construction and Remodeling manages new construction in Los Angeles from the initial lot assessment through design, engineering, permitting with the Los Angeles Department of Building and Safety, demolition, and final inspection, all under one contract.
Services We Offer
Engineering & Title 24
Permits & Plan Check
New Build ADUs
Our New Construction Process in Los Angeles
How We Approach New Construction in Los Angeles
Starting new construction in Los Angeles means the lot comes before any floor plan. A zoning review, boundary and topographic survey, and soils report tell us what the land can support and what the foundation will require. From there, design takes shape through site plans, floor plans, and elevations developed alongside you. Structural engineering and Title 24 energy compliance documents are prepared with the drawings, so the plan set enters the Los Angeles Department of Building and Safety plan check complete and ready for review.
If your property sits within one of the city’s 35 Historic Preservation Overlay Zones, exterior changes and additions go through staff or HPOZ Board review under a neighborhood preservation plan, and we account for that early. While plans are under review we address comments, coordinate utility work, and arrange the asbestos survey and air district notification required before demolition. Once permits are issued, the build runs in sequence through foundation, framing, rough trades, insulation, and finishes, with one project manager present at every inspection through final.
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Getting permits for new construction in Los Angeles runs through the Los Angeles Department of Building and Safety, and the process touches more than one desk before a permit is issued. Planning reviews the design against zoning requirements covering setbacks, height limits, lot coverage and floor area. Building plan check looks at structural documents and energy compliance. The fire department addresses sprinklers and site access, and public works handles grading, drainage, street trenching and the driveway approach. If the site already has a structure, demolition carries its own permit, and most building departments want gas and electric service disconnected and the sewer lateral capped before that permit is released. The South Coast AQMD also requires an asbestos survey and advance notification ahead of most demolitions.
Los Angeles has 35 Historic Preservation Overlay Zones spread across neighborhoods that range from 1920s bungalow blocks in areas like Hollywood and Koreatown to postwar valley tracts built during the city’s mid-century expansion. If the lot sits within one of those zones, exterior work, additions and new construction go through staff or HPOZ Board review under a neighborhood preservation plan before the standard permit process begins. That review adds a step that owners and designers need to account for early in scheduling. Outside those zones, the permit path is still layered, but the design is evaluated against current zoning rather than a preservation plan.
Subsurface conditions across a city covering roughly 470 square miles vary considerably, so a geotechnical report comes before foundation design. The report identifies expansive clay, old fill, groundwater depth and slope stability. In state-mapped liquefaction or landslide zones, a site-specific investigation is required. The structural engineer uses those findings to size footings or specify a post-tensioned slab or grade beams, then designs shear walls, hold-downs and beams for California’s seismic loads. On sloped lots, the same report drives retaining wall design and the grading plan, and the soils engineer typically signs off on footing excavations before concrete is placed.
Energy compliance follows the 2025 Title 24 standards for permits filed on or after January 1, 2026, and new single-family homes must include solar PV. Some measures require field verification by a third-party HERS rater. Utility services get sized for the new house, not whatever was there before. Required fire sprinklers often mean a larger water meter and service line, and a larger home with modern electrical loads and solar may need a new utility service, which carries its own lead time. If the lot falls within a CAL FIRE Fire Hazard Severity Zone, wildland-urban interface standards apply: a Class A roof, ember-resistant vents, ignition-resistant exterior materials and multipane windows with tempered glass. Inspections follow each construction stage, from foundation forms and reinforcing steel through framing, rough-ins and insulation to the final sign-off.
Other Remodeling Services We Offer
A kitchen remodel touches more trades than any other room in the house: layout, cabinetry, plumbing, electrical, ventilation and finishes. Horizon designs and builds kitchen remodels under one contract, from the measured layout to the final inspection.
Whether you envision a classic Southern California pool or a fully customized backyard oasis, Horizon Construction & Remodeling delivers the highest level of quality and service. Our comprehensive pool design and remodeling services cover everything from layout and decking to built-in BBQs and final touches like landscaping. Let Horizon be your trusted partner in transforming your backyard into the perfect outdoor retreat.
If you are planning a complete bathroom remodel or simply want to change your tub, shower, update your plumbing fixtures, or make the space more efficient, our team at Horizon will help you through the process with expert advice, professional craftsmanship, and affordable options with beautiful results. Learn more about our bathroom remodeling services.
Transform your space with our expert interior work services. We offer a comprehensive range of solutions — from space planning and custom design to the selection of high-quality finishes and materials. Our team of experienced professionals works closely with you to create a space that’s both functional and stylish, tailored to your unique needs, goals, and budget. Whether you’re updating a single room or overhauling your entire interior, we bring precision, creativity, and craftsmanship to every project.
At Horizon, we believe your home is more than just four walls — it’s where life happens. It’s the place you relax, gather with family and friends, and create lasting memories. That’s why we offer a full range of exterior work services designed to elevate your outdoor living space. From patios and hardscaping to custom decks and exterior renovations, we help turn your vision into a dream yard that complements your lifestyle and enhances curb appeal.
At Horizon Construction & Remodeling, our expert team includes a dedicated design and planning division that works hand-in-hand with licensed architects and structural engineers. We take care of everything — from detailed plans and blueprints to securing city permits — so you don’t have to deal with delays or red tape. Our goal is to streamline the process and provide a fully approved set of documents that aligns with both your vision and city regulations, saving you time and stress.
Why Choose Horizon Remodeling For New Construction in Los Angeles
Horizon Construction and Remodeling is a licensed Class B general building contractor, bonded, and in business since 2009. New construction is the most involved project a residential contractor handles, and we approach it as a single coordinated effort rather than a series of handoffs. One contract covers design coordination, engineering, permitting, and the build itself, with one project manager carrying the job from the first site visit through the final inspection.
In Los Angeles, permits go through the Los Angeles Department of Building and Safety, and the process can move in different directions depending on where your lot sits. If your property falls within one of the city’s 35 Historic Preservation Overlay Zones, new construction typically requires review by HPOZ staff or the HPOZ Board under the applicable neighborhood preservation plan, and we account for that early so it does not stall the schedule later.
Requirements like fire sprinklers, solar readiness, and CALGreen compliance are built into the design from the start, not added after plan check. If you have a lot in Los Angeles and want to know what it can support, call us at (714) 449-9035 and we will take a look.
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New Construction FAQ
Should I rebuild or remodel my house in Los Angeles?
The right choice depends on your specific house and lot. A full rebuild often makes more sense when the foundation has serious problems, when zoning allows a larger or better-positioned structure, when you want a second story the existing framing cannot carry, or when you would be replacing nearly every system and moving most walls regardless. If the bones are solid and you mainly want a new layout and updated finishes, a whole-home remodel is usually simpler to permit through the Los Angeles Department of Building and Safety. We walk the property with you and give you a straight comparison before you commit to anything.
What permits does a new home need?
New construction in Los Angeles requires several permits working together: a demolition permit for the existing structure, a building permit for the new one, and typically grading, utility, and driveway permits through public works. The Los Angeles Department of Building and Safety reviews the plans, with planning, fire, and public works each signing off. Coastal lots may also need a coastal development permit, and fire hazard severity zone properties face additional fire-code review. We prepare all submittals and manage every round of comments and resubmittals.
How long does it take to build a new home?
Custom home timelines in Los Angeles vary widely, and the design and permitting phase alone can match the length of construction itself. Plan check through the Los Angeles Department of Building and Safety commonly runs several months, and projects in hillside areas, fire zones, or one of the city’s 35 Historic Preservation Overlay Zones often take longer due to additional staff or HPOZ Board review. Construction of a custom home typically runs around a year, with sloped lots, heavy site work, or larger structures adding more time. Utility scheduling, weather, and inspection availability all play a role, so we build your specific schedule after the feasibility review.
What drives the cost of building a new home?
What drives new construction costs in Los Angeles is scope and structural complexity more than any single line item. Second stories, long spans, and irregular footprints cost more to frame than simple single-story boxes, and foundation design shifts with soil conditions and slope, which vary considerably across a city of roughly 470 square miles that spans flat valley tracts, coastal terrain, and steep hillside lots. Site work including demolition, grading, retaining walls, and utility upgrades can differ dramatically from one parcel to the next. Properties that fall within fire-zone boundaries carry additional material and design requirements. City impact fees and school fees tied to new square footage depend on the jurisdiction and district. Once we assess feasibility, we organize the budget into these categories so you can see exactly where your decisions carry the most weight.
Do new homes in California need solar and fire sprinklers?
Yes, new single-family homes in Los Angeles must meet several layered requirements, and we design to all of them from the start. The California Residential Code requires automatic fire sprinklers, which affects both water service sizing and how ceilings are laid out. Solar PV has been mandatory since the 2019 energy standards, with the 2025 Title 24 cycle adding further requirements for permits filed from January 1, 2026. CALGreen also covers water use, construction waste recycling, indoor air quality, and EV charging readiness.
Can you build an ADU along with the new house?
Building an ADU alongside new construction in Los Angeles is straightforward because water, sewer, and electrical service can be sized for both units from the start, and the site plan can give each unit a private entry and outdoor space. State law permits ADUs on most single-family lots, though setbacks, height limits, and parking rules still apply. Permits go through the Los Angeles Department of Building and Safety, and if the site falls within one of the city’s 35 Historic Preservation Overlay Zones, the project will also go through HPOZ staff or board review. We can permit the ADU together with the main house or handle it as a separate project, and we build guest houses as well.
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Horizon is a licensed Class B general building contractor serving Los Angeles and the surrounding Los Angeles County communities.