Whole Home Remodeling in Placentia
Whole home remodeling in Placentia attracts homeowners who like their neighborhood but have outgrown the way their house is laid out. Most of the single-family tract homes here were built during the 1960s and 1970s, when the city’s population jumped from roughly 5,000 to nearly 25,000 in a single decade. Those houses were well built for their time, but the floor plans reflect how families lived back then: smaller kitchens closed off from the rest of the house, bathrooms that feel cramped by today’s standards, and wiring and plumbing that were never designed to carry a modern household’s load. Homeowners in areas like Atwood, La Jolla, and Alta Vista call us when patching one room at a time no longer makes sense.
A whole home remodel addresses the house as a single project rather than a series of disconnected jobs. Walls come down to open up the floor plan, the kitchen gets reconfigured within the existing footprint, bathrooms are rebuilt, and the plumbing and electrical systems are updated to meet current standards, all under one permit filed with the City of Placentia Development Services Department. That unified approach keeps the work coordinated, reduces the disruption that comes from repeated construction cycles, and produces a finished result where every room connects logically to the next.
Services We Offer
Structural & Seismic Work
Roof, Windows & Envelope
Additions & ADUs
Our Whole Home Remodeling Process in Placentia
A whole home remodel in Placentia usually starts with a conversation about the rooms you want changed, but our first real step is a walk-through of the entire house. The tract homes built here in the 1960s and 1970s have had decades of owners, and that history shows up in places you would not expect. We look at the attic, the crawl space or slab foundation, the electrical panel, and the supply lines. Where something looks uncertain, we investigate before anyone picks up a pencil. That might mean running a sewer camera, having a textured ceiling tested for asbestos common to that era, or having an engineer look at framing that a past owner altered. We would rather find a problem on a walk-through than during demolition.
Once we understand what the house actually is, we draw the existing layout and the proposed new one in the same document. You can move a wall or shift a kitchen island on paper for nothing. Structural engineering calculations and the Title 24 energy compliance documents go into that same plan set, so we submit one complete package to the City of Placentia Development Services Department rather than separate filings that create gaps. If your property falls within the Old Town Placentia area, we account for the adopted development standards that apply there before anything goes to the counter. Selections for cabinets, tile, flooring, and fixtures for every room are made at our Fullerton office before demolition begins, so materials are ready when the schedule calls for them.
Construction follows a fixed sequence: demolition first, then structural work, then rough plumbing, electrical, and HVAC, then inspections, insulation, drywall, and finishes. Because the postwar homes in Placentia tend to sit on flat lots with straightforward floor plans, interior reconfiguration is usually the real complexity rather than site access or grade. Working from one coordinated plan means the plumber reroutes lines once, correctly, and finish flooring runs continuously through the house without a threshold marking where an old project stopped. One project manager carries the job from that first walk-through through the final city inspection, so there is a single point of contact and the work stays on one consistent track.
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Pulling permits for a whole home remodel in Placentia means filing for a full building permit with plan check, because the work touches structure, plumbing, electrical and mechanical systems at the same time. All of that goes through the City of Placentia Development Services Department. One factor worth knowing before the plans are drawn: if your property falls within the Old Town Placentia Revitalization Plan area, that plan carries its own adopted development standards that can affect exterior materials, setbacks and the review path. Properties in Atwood, La Jolla, Alta Vista and most of the surrounding tract neighborhoods follow the standard building and zoning code instead. We check your address against that boundary at the first meeting, because it shapes the submittal before a single wall comes down.
The age of the housing stock is what drives most of what we find once work begins. Placentia grew from a small town of roughly 5,000 people in 1960 to nearly 25,000 by 1970, and the vast majority of homes here are single-family tract houses built during that decade. Homes built before 1978 may contain lead-based paint, and any contractor who disturbs it must follow the EPA Renovation, Repair and Painting rule. Popcorn ceilings, certain resilient flooring and older duct wrap from that era can also contain asbestos, so suspect materials are tested before any demolition proceeds and removal is handled by a licensed abatement contractor. Galvanized supply lines corrode from the inside out over decades, and electrical panels from the 1960s and 1970s are often undersized for how a household uses power today. A whole home remodel is the practical window to address both, while the walls are already open and the work is already under permit.
Two state requirements come up on nearly every permitted whole house job in California. Civil Code 1101.4 requires that older high-flow toilets, showerheads and faucets be replaced with water-conserving fixtures on many permitted remodels of homes built before 1994, so we account for that in the fixture schedule rather than discovering it at final inspection. California’s Title 24 energy code applies to remodels as well as new construction, covering windows, insulation, lighting and mechanical changes. We prepare the compliance documentation with the plans so the plan check submission is complete from the start.
Structure is the other variable that surprises homeowners in this housing era. Most of these flat-lot tract houses were built on raised foundations, which means seismic bolting and cripple-wall bracing are often worth doing while the floor and wall assemblies are already accessible. Taking out a load-bearing wall to connect the kitchen and living area, a common goal in these 1960s floor plans, requires an engineered beam, posts and sometimes new footings, all of which have to be shown on the permitted plans. Unpermitted additions, enclosed patios and garage conversions from past decades are also common throughout Placentia, and they typically need to be legalized, brought up to current code or rebuilt before the city will sign off on the broader project. If adding square footage is part of the goal, state law allows an accessory dwelling unit on most single-family lots, and that scope can be planned and permitted alongside the main remodel.
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 Whole Home Remodeling in Placentia
Placentia homeowners hire us for whole home remodeling because a project that touches the kitchen, bathrooms, structural walls and mechanical systems all at once needs a contractor whose license actually covers that kind of work. A Class B general building license is issued specifically for jobs that cross multiple trades under a single permit, and that is exactly what a whole home remodel is. We have held that license since 2009, and we are bonded, which means your project is backed by a contractor who has operated in this market long enough to know what older Southern California houses tend to hide once walls open up.
The design-build structure we use matters more on a whole home project than on almost any other job. Your drawings, engineering coordination, permits and construction all sit under one contract with one project manager. You are not passing messages between separate professionals who have never met each other. The people who worked out the floor plan are communicating directly with the crew framing the walls. Finishes for every room, from the kitchen to the hall bath to the flooring throughout, are selected together at our design center in Fullerton, so nothing looks like it came from a different house.
We are also direct about the parts most contractors avoid. We will tell you honestly whether living in the home during construction is realistic for your situation, what an older Placentia house is likely to need once we get behind the drywall, and which items on your wish list can reasonably be deferred without costing you more down the road.
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Whole Home Remodeling FAQ




How is a whole home remodel different from a regular home remodel?
A typical remodel updates one room and works around the rest of the house, while a whole home remodel treats the structure as a single system. Several rooms are addressed at once, walls may be moved or removed to open the floor plan, and plumbing, electrical, and HVAC are updated throughout. Because Placentia’s tract homes from the 1960s and 1970s share similar layouts, reconfiguring the interior is usually straightforward. Everything is drawn, permitted, and sequenced together, so trades move through once rather than reopening finished work later.
What's the difference between a whole home remodel and a complete home renovation?
The two terms overlap more than most people expect. A remodel typically means changing the layout and finishes, while a renovation focuses on restoring the house itself: structure, windows, plumbing, wiring, and heating and cooling. Most whole home remodeling projects in Placentia end up being some of both, especially in the 1960s and 1970s tract homes that make up most of the city’s housing stock, where original systems are often overdue for updating. We scope both together, putting anything that protects the house first, then systems that are hard to reach once walls close, then the finishes you see every day.
Do we have to move out during a whole home remodel?
Whether you need to move out depends on the scope of the remodel and how the work is scheduled. If the kitchen and every bathroom are coming out at the same time, or drywall and flooring are being removed throughout the house, most families leave for at least the heaviest phases of construction. The good news is that many of the single-family tract homes in Placentia have enough square footage to allow phased work, keeping one bathroom functional and setting up a temporary kitchen in another room so some families can stay. Phasing does add time to the project, so we walk through that trade-off with you once the plan is drawn.
How long does a whole home remodel take?
A whole home remodel in Placentia typically runs several months of construction, and the full timeline from first drawing to final inspection is often longer than homeowners expect because design and permitting can take just as long as the build itself. Plan check at the City of Placentia Development Services Department can run several weeks on its own. Structural work, additions, or surprises behind walls of a 1960s or 1970s tract home stretch the schedule further. We build a project-specific timeline into every proposal, and starting the drawings early is the single biggest factor in when you move back in.
Who handles the permit for a whole home remodel in Placentia?
We handle the permits. For a whole home remodel, that means submitting to the City of Placentia Development Services Department, preparing the full plan set with structural engineering and Title 24 energy documents, and responding to any plan-check comments until the permit is issued. If your home sits within the Old Town Placentia area, its adopted development standards add a layer to that review, and we account for it in the schedule. During construction we coordinate every required inspection and close out the permit at the end.
What drives the cost of a whole home remodel?
Cost is driven by the scope of structural and mechanical work your house actually needs, and two homes of the same square footage can land far apart depending on what is behind the walls. Removing a load-bearing wall, relocating a kitchen or bathroom on a slab foundation, repiping, rewiring, panel upgrades, and any lead or asbestos handling in Placentia’s older 1960s and 1970s tract homes all add to the total before you even select finishes. The finish level you choose and whether you are adding square footage matter as well. A detailed proposal breaks every item out line by line, separating work that is structurally necessary from decisions that are yours to make.
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Horizon is a licensed Class B general building contractor serving Placentia and the surrounding Orange County communities.
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