New Construction in North Tustin
Most new construction in North Tustin begins with a lot that already has a house on it. Because the area was developed gradually on former citrus and lemon ranch land in the Tustin foothills, mostly from the 1940s through the 1990s rather than in one large tract wave, the housing stock varies widely in age and condition. A remodel is often the right call, but when a home is too cramped, sits on a worn foundation, or cannot support a second story without rebuilding most of it anyway, a tear-down rebuild is frequently the cleaner solution. Horizon Construction and Remodeling manages new construction in North Tustin from the initial lot review through design, engineering, permitting, 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 North Tustin
New construction in North Tustin starts with the land itself, and on these hilly lots that means a boundary and topographic survey, a soils report, and a zoning review before a floor plan takes shape. The genuinely steep terrain across areas like Cowan Heights and Lemon Heights affects how we stage equipment, how the foundation is designed, and how site access is planned from the first day of work. Because North Tustin is unincorporated county territory, permits run through OC Development Services at OC Public Works rather than a city building department, and the North Tustin Specific Plan sets the height limits and land use rules that shape what can be built on your lot.
Once design is settled, structural engineering and Title 24 energy documents go into the plan set so it enters plan check complete. We handle comment responses while coordinating utility work and any required pre-demolition surveys. When permits issue, the build runs in sequence through foundation, framing, rough trades, insulation, and finishes, with one project manager on site for every inspection through final.
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North Tustin is unincorporated county territory, so permits for new construction here do not go through the City of Tustin. Instead, applications move through OC Development Services at OC Public Works, where review typically touches several desks before anything is approved. Planning checks the proposed design against the North Tustin Specific Plan, which governs land use districts, setbacks, height limits, and lot coverage across areas like Cowan Heights, Lemon Heights, and Panorama Heights. Building plan check reviews structural and energy documents separately, the fire department evaluates sprinkler systems and site access, and public works handles grading, drainage, and any new driveway approach. Demolition of an existing structure requires its own permit, and most building departments want gas and electric service disconnected and the sewer lateral capped before that permit issues. The South Coast AQMD also requires an asbestos survey and advance notification prior to most demolitions.
The hilly terrain that defines so much of North Tustin adds layers to the technical side of a project that flat-lot builds simply do not face. A geotechnical report comes before foundation design, identifying expansive clay, old fill, groundwater conditions, and slope stability. On a sloped lot, that same report drives retaining wall design and the grading plan, and the soils engineer typically signs off on footing excavations before concrete is placed. In state-mapped liquefaction or landslide zones, a site-specific investigation is required. The structural engineer uses the geotech findings to size footings, design post-tensioned slabs or grade beams, and lay out shear walls, hold-downs, and beams to meet California seismic requirements. Site access and construction staging also require more planning when the terrain is genuinely steep.
Utilities for the new house get sized for the new structure, not the one that came before it. Required fire sprinklers often mean a larger water meter and service line. A bigger home with solar and modern electrical loads may need a new utility service entirely, and that upgrade carries its own lead time that has to be accounted for early in scheduling. Energy compliance follows Title 24 standards, and new single-family homes must include solar PV. Some measures require field verification by a third-party HERS rater before the building department will sign off.
Because a meaningful share of North Tustin lots fall within a CAL FIRE Fire Hazard Severity Zone, wildland-urban interface construction standards apply to many new homes here. That means a Class A roof assembly, ember-resistant vents, ignition-resistant exterior materials, and multipane windows with tempered glass. The large hillside lots that are typical of this area, many of them carrying four and five bedroom homes built across several decades on former citrus and lemon ranch land, often leave room to work with but also bring mature landscaping and grade changes that affect how a build is sequenced. Inspections follow every stage of construction, from foundation forms and reinforcing steel through framing, rough-ins, and insulation, all the way to the final sign-off that closes the permit.
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 North Tustin
Horizon Construction and Remodeling has been building in Southern California since 2009, and we operate as a licensed and bonded Class B general building contractor. New construction is the most demanding work a residential contractor takes on, and we think you should verify our credentials on the CSLB public license lookup before you commit to anything. Our bond status and license standing are both public record and easy to confirm.
We work design-build, meaning design, engineering coordination, permits and construction all fall under one contract with one project manager. That matters in North Tustin because permits here run through OC Development Services at OC Public Works rather than a city building department, and the county’s North Tustin Specific Plan governs land use districts and height limits. Having one team carry the project from first drawings through plan check comments to finished framing keeps that process from breaking down between separate firms. California energy code and CALGreen requirements get built into the design from the start, not added later as change orders.
The hilly terrain across areas like Cowan Heights and Lemon Heights affects site access, equipment staging and structural design, so we walk every lot before we discuss scope. Call (714) 449-9035 to schedule a site visit and find out what your North Tustin property can support.
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New Construction FAQ
Should I rebuild or remodel my house in North Tustin?
Whether a rebuild or a whole home remodel makes more sense depends on the specific house and lot. A new build tends to be the right call when the foundation has serious issues, when nearly every system needs replacing and most walls are moving anyway, when you want a second story the existing frame cannot support, or when your lot allows a larger or better-positioned structure. In North Tustin, where many homes sit on sloped hillside parcels in areas like Cowan Heights and Lemon Heights, site conditions and the county’s North Tustin Specific Plan can also shape what is realistically buildable. If the structure is sound and the goal is mainly a new layout and updated finishes, a whole home remodel is generally simpler to permit through OC Development Services. We walk the property with you and give a straight comparison of both paths before you commit to anything.
What permits does a new home need?
Permits for a new home in North Tustin run through OC Development Services at OC Public Works, since the area is unincorporated county territory rather than part of the City of Tustin, and planning, fire, and public works departments each typically sign off before a building permit issues. You can expect to pull separate permits for demolition, grading, utilities, and the driveway in addition to the main building permit, and properties in a fire hazard severity zone receive additional fire-code review. We handle submittals, comments, and resubmittals throughout.
How long does it take to build a new home?
Realistic timelines vary by project, but design and permitting often take as long as the construction phase itself. Plan check commonly runs several months, and that window stretches when a hillside review is added to the mix. In North Tustin, the county’s North Tustin Specific Plan governs land use and height limits, and the genuinely hilly terrain in areas like Cowan Heights and Lemon Heights can add site work and structural complexity that extends both review and build time. Custom home construction often runs around a year, longer for larger footprints or significant grading. Weather, utility scheduling, and inspection availability all play a role, so we give you a schedule built around your specific lot after the feasibility review.
What drives the cost of building a new home?
Budget for new construction in North Tustin is shaped most by size and complexity, with second stories, long spans, and heavily cornered floor plans carrying more cost than simpler layouts. Because the area developed gradually across former citrus ranch land in the Tustin foothills, lots in neighborhoods like Cowan Heights and Lemon Heights tend to be generous and hilly, which means site work varies considerably from one property to the next. Grading, retaining walls, demolition, and utility upgrades all depend on what the slope and soils actually require. Foundation type follows the same logic. The county’s North Tustin Specific Plan governs land use and height limits here, and because North Tustin is unincorporated county territory, permits run through OC Development Services at OC Public Works rather than a city building department. Fire-zone requirements and finish level throughout the home also affect the final number, as do county and school district impact fees on new square footage. Once we complete a feasibility review, we break the budget into these categories so you can see exactly where your decisions have the most effect.
Do new homes in California need solar and fire sprinklers?
Yes, new single-family homes in North Tustin must meet several overlapping state 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, and the 2025 Title 24 cycle tightens that further for permits filed from January 1, 2026. CALGreen adds rules covering water use, construction waste recycling, indoor air quality, and EV charging readiness.
Can you build an ADU along with the new house?
Yes, a new build is the easiest point to add an ADU, because water, sewer and electrical service can be sized for both units in a single effort and the site plan can give each unit its own entry and outdoor space. On the generous hillside lots common across Cowan Heights and Lemon Heights, there is usually enough room to do this well. State law allows ADUs on most single-family lots, though setbacks, height and parking rules still apply, and permits for North Tustin run through OC Development Services since the area is unincorporated county territory. We can permit the ADU together with the main house or handle it as a separate project, and we also build guest houses.
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Horizon is a licensed Class B general building contractor serving North Tustin and the surrounding Orange County communities.