Backyard Remodeling in Whittier
Backyard remodeling in Whittier typically starts with a single problem: a patio cover that leaks, an outdoor kitchen that never got built, a slab that settled, or a lawn that simply stopped being worth the effort. The lots here carry the history of the city, from the Quaker-founded Uptown core through the postwar tracts that spread across what used to be orange groves, and that age shows up out back first in mature tree roots, old drainage lines nobody mapped, and concrete poured decades before anyone thought about how water would move. We work in College Hills, Friendly Hills, Murphy Ranch, and Uptown, and our backyard remodeling in Whittier covers everything from a full design-build yard to a targeted tear-out and rebuild, drawn as one plan and built by one licensed team.
Services We Offer
Covers & Outdoor Kitchens
Drainage & Landscape
Yard Tear-Out & Rebuild
Our Backyard Remodeling Process in Whittier
Backyard remodeling in Whittier calls for careful planning from the start, because what sits underground drives every decision above grade. We open with a site visit to read the slope, trace side-yard access, locate the gas meter, electrical panel and existing drainage paths, and identify any structure that may never have been permitted. Postwar tract homes on wider lots often leave room for meaningful additions, while older Uptown-era properties can present tighter setbacks and access constraints that shape the whole design. From there we survey the lot, confirm easements and draw a complete yard plan covering decking, covered structures, outdoor kitchens, grading and drains. You make material selections before demolition begins.
Permit submittals go to the City of Whittier Building and Safety Division, and if your property falls within one of the four locally designated historic districts, such as College Hills or Hadley-Greenleaf, exterior work also requires a Certificate of Appropriateness, which we coordinate on your behalf. Once approvals are in hand, we move through demolition, excavation, underground utility runs and inspections, then raise structures and surfaces, finish with planting and lighting, and close with a final inspection and walk-through.
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Backyard remodeling in Whittier moves through more regulatory steps than many homeowners expect, and knowing that before design starts saves real time. Most scope items need a permit: patio covers and California rooms, pools and spas without exception, retaining walls or grading past the city’s thresholds, new gas lines serving a grill, fire pit or pool heater, and new electrical circuits. That permit work goes through the City of Whittier Community Development Department, specifically its Building and Safety Division. Setbacks for pools, equipment pads, fire features and overhead covers vary, so we confirm them during layout rather than discovering a conflict at plan check. Where an HOA is involved, its architectural committee typically reviews pools, covers, walls and visible landscape changes before the city does, and we build that review window into the schedule from the start.
Whittier carries an extra layer for properties inside its four locally designated historic districts: Hadley-Greenleaf, Central Park, College Hills and Earlham. Exterior work in those areas runs through a Certificate of Appropriateness before a standard building permit can move forward. The city’s housing stock adds context here. The older Uptown-era properties and the College Hills homes sitting within or near those historic boundaries often have site conditions, mature trees, original walls and lot configurations that require more care in both design and the approval process. Postwar tract houses on wider lots, more common through Murphy Ranch and Friendly Hills, generally sit outside those historic overlays, though permit requirements for structural and mechanical work apply city-wide regardless.
Drainage planning is not optional. Every new patio surface, pool deck and solid patio cover roof converts ground that once absorbed water into runoff. We set finish grades in the drawings so the site falls away from the foundation on all sides, route downspouts into drain lines rather than onto hardscape, and add area drains or channel drains where paving meets the building. Permeable pavers, decomposed granite and planting areas absorb what they can. Water terminates at an outlet the city permits, typically the street, and never discharges over a property line onto a neighbor’s lot. Retaining walls above four feet, measured from the bottom of the footing, or walls holding back a slope, driveway or structure, typically need their own permit and require drainage relief behind the wall to remain stable over time.
A few state-level requirements apply regardless of local rules. California’s Model Water Efficient Landscape Ordinance, adopted by every city and county in some form, can require a water budget and irrigation plan for larger permitted landscapes, while smaller rehabilitations often fall under the thresholds. If your water agency offers a turf replacement rebate, approval must come before any existing grass is removed, the replacement area must stay permeable, and synthetic turf does not qualify under most programs. Properties within a CAL FIRE mapped Fire Hazard Severity Zone call for specific material choices near the structure, particularly within the first five feet, where hardscape or gravel replaces bark mulch and attached covers are designed with ignition resistance in mind. Finally, when a permit is issued for a new or remodeled pool or spa at a single-family home, state law requires at least two of seven drowning-prevention features to be in place before final inspection. We walk through all of this during the initial consultation so nothing surfaces late in the process.
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 Backyard Remodeling in Whittier
Horizon Construction and Remodeling is a licensed and bonded Class B general building contractor, and that classification matters on a backyard job. A backyard remodel pulls together framing, concrete flatwork, drainage, electrical, and plumbing on a single site, and a Class B license covers projects that combine multiple trades under one contract. Our license has been active since 2009, giving us well over fifteen years of work on Southern California properties.
Working design-build means design, engineering coordination, permitting, and construction all move under one contract with one project manager. That matters in Whittier, where permits run through the City of Whittier Building and Safety Division, and where homes in the four locally designated historic districts, including College Hills and Hadley-Greenleaf, require a Certificate of Appropriateness before exterior work can begin. We handle that process rather than leaving homeowners to navigate it alone.
Postwar tract houses on wider lots in neighborhoods like Murphy Ranch and Friendly Hills often have room for substantial backyard projects, while older Uptown-era properties call for a different approach given tighter site conditions. You can review materials, finishes, and layout options in person at the Horizon Design Center at 614 South Euclid Street in Fullerton before anything is ordered. Call (714) 449-9035 to schedule a site visit and free estimate.
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Backyard Remodeling FAQ




Do I need a permit for a backyard remodel in Whittier?
Most backyard remodeling work in Whittier does require permits, though smaller jobs like replacing plants or resurfacing a compact patio typically do not. Projects such as pools and spas, patio covers, California rooms, taller retaining walls, significant grading, new gas lines, and new electrical circuits all go through the City of Whittier Community Development Department’s Building and Safety Division. Pool construction must also incorporate the state’s required drowning-prevention features to clear final inspection, and gas, electrical, and plumbing runs are inspected before they are buried. Homeowners in the four locally designated historic districts, Hadley-Greenleaf, Central Park, College Hills, and Earlham, face an additional layer: exterior changes there require a Certificate of Appropriateness before building permits move forward. We review the applicable local rules during the layout phase, prepare the required drawings, pull every permit the project calls for, and work through plan-check comments until approvals are in hand.
How long does a backyard remodel take?
How long a backyard remodeling project takes in Whittier depends on scope, permit timing, HOA review, and how quickly material selections are made. A hardscape-and-planting job can move through construction in a few weeks once permits are in hand, while a yard combining a patio cover, outdoor kitchen, and drainage work commonly runs several months, with design and permitting sometimes taking as long as the build itself. Homes in the four locally designated historic districts may also require a Certificate of Appropriateness before exterior work begins, which adds lead time up front. Every proposal includes a project-specific schedule.
What drives the cost of a backyard remodel?
Backyard remodeling costs in Whittier vary based on a wide range of site conditions and project details. Access matters first: a yard reachable only through a narrow side gate limits equipment size and increases hand labor. Grade changes and soil conditions drive decisions about excavation and retaining walls. Pool work splits differently depending on whether you are building new or renovating an existing shell, and an older pool may require plumbing replacement once opened. Distance from the gas meter and electrical panel, available panel capacity, the patio cover type, material selections, demolition volume, and any HOA, fire-zone, or landscape submittals all affect the final number. Homeowners in the four locally designated historic districts, Hadley-Greenleaf, Central Park, College Hills, and Earlham, should also expect exterior work to require a Certificate of Appropriateness through the City of Whittier Community Development Department before construction begins.
What's the difference between a backyard remodel and a backyard renovation?
Backyard remodeling in Whittier works best when drainage and any underground work are planned before surface materials go down, because the order matters for everything that comes after. Some projects start from vision, adding hardscape, a covered patio, an outdoor kitchen, and planting as a single coordinated plan. Others start from failure, cracked concrete, a rotting deck, poor drainage, or unpermitted structures that have to come out first. Most jobs involve both, and we approach them the same way regardless.
Can we build the backyard in phases?
Yes, phasing a backyard remodel in Whittier is common and very workable. The approach that holds up best is drawing the complete yard plan before any ground is broken, then running all underground lines for gas, drainage, electrical, plumbing, and irrigation during the first phase so that later additions never require cutting into finished concrete. If a covered structure, outdoor kitchen, or fire pit is on the horizon, we sleeve the gas line or conduit under the new slab now. Phasing does mean paying for mobilization and some inspections more than once.
Can you keep my pool and replace everything around it?
In many cases, yes, you can keep the pool and still get a fully redone surround. Older pools in Whittier, especially on the wider postwar lots in areas like Friendly Hills or Murphy Ranch, often have a structurally sound shell sitting inside a failed deck, with cracked or lifted concrete, loose coping, and expansion joints that have let water migrate under the slab. We replace the deck and correct the drainage that caused the damage without disturbing the pool itself. If the pool also needs resurfacing, new tile, or equipment work, we coordinate that scope at the same time so the deck is never poured twice.
Explore More in Whittier
Horizon is a licensed Class B general building contractor serving Whittier and the surrounding Los Angeles County communities.
Other Services in Whittier
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