A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Anaheim
Most home additions in Anaheim run $180 – $320 per square foot depending on whether you’re converting a garage, bumping out a wall, or building up. A detached ADU runs $140,000 – $260,000 in Anaheim’s current market; a primary bedroom and bathroom addition typically lands between $120,000 and $220,000. We give you the written price before the first nail goes in, because the worst thing a contractor can do in this city is make you guess. Call (350) 203-6060 for a free estimate from a Home Addition Contractor who actually knows Anaheim’s permit desk, its housing stock, and its inspectors.
We know Anaheim from Crescent to Ponderosa, from the Ranch to West Anaheim. That matters when you’re about to open a wall on a 1958 stucco ranch off Euclid or add square footage to a bungalow in the Colony. The city’s combination of 1950s – 1970s single-family homes, large lots, and strict zoning means a generic contractor will get surprised. We won’t.
Why Lodgewick ADU Orange County Is Anaheim’s Preferred Home Addition Contractor Company
Lodgewick ADU Builders is the ADU company of the Kingswell family. Our Anaheim homeowners know something most cities don’t: a lodge is a small house on a larger property. That’s exactly what an addition or ADU is, whether you call it a garage conversion, a backyard unit, or a second story. Every project operates under The Kingswell Guarantee: a written price before work begins, a defined arrival window, a clean job site, and a written guarantee on every job, with a free return visit if the work fails within 365 days.
We’re led by Russ Delmar, and our Anaheim crews are background-checked and uniformed. You’ll know exactly who is walking onto your property. A live person answers our calls 24 hours a day, seven days a week. Not a voicemail loop. Not a chatbot. When you’re mid-permit on an Anaheim addition and the inspector needs a detail, you’ll get a real human on the line.
We coordinate dispatch and scheduling through our Los Angeles office, but the crews serving Anaheim are local to this city. They know the difference between a pre-1940 bungalow in the Colony and a 1960s ranch near Brookhurst. That local knowledge matters when your addition triggers a code upgrade and a less experienced contractor starts improvising at your expense.
Garage Addition Contractors in Anaheim
Garage addition contractors in Anaheim deal with a specific reality: many garages on 1950s and 1960s lots were built as detached structures with shallow footings and minimal insulation. A garage conversion or a room above the garage requires a structural review in Anaheim before plans are approved, especially on corner lots. Costs in Anaheim generally run $190 – $260 per square foot for a conversion, and a full second-story addition above a garage starts closer to $280 per square foot. Here’s what that looks like in practice.
Structural Upgrades That Change the Price
Anaheim inspectors require garage foundations to be verified before habitable space is approved. If the existing slab is too shallow, you’ll need new footings. We write that allowance into the contract up front. No surprise change order after demo.
Detached Versus Attached Additions
Detached garage additions in Anaheim trigger different setback and parking rules than an attached conversion. We check the zoning before we draw the plans, not after the crew shows up. That’s the difference between a smooth permit and a stop-work order.
Bathroom Addition Contractor in Anaheim
A bathroom addition contractor in Anaheim has to plan around something most people don’t think about until the wall is open: 1950s and 1960s plumbing. Original galvanized supply lines and cast-iron drains are common in Anaheim homes built before 1975, and Anaheim’s code requires certain upgrades the moment you touch the plumbing. A bathroom addition in Anaheim typically runs $45,000 – $85,000 depending on size, finish level, and whether you’re adding onto the existing footprint or converting space inside the home. Here are two paths we see regularly.
Adding to the Existing Footprint
When you bump out a wall for a bathroom on a 1958 ranch near Pearson Park, you’re dealing with stucco removal, foundation work, and a plumbing trench. Anaheim’s inspectors will want to see the existing drain line before you tie in. We show them. Every time.
Converting Interior Space
Converting a walk-in closet or a hallway nook into a bathroom is faster and less expensive, but it still requires proper venting and a moisture barrier that meets Anaheim’s code. We use moisture-resistant sheathing and correctly flashed vent penetrations so the first winter rain doesn’t end up inside your wall.
Trusted Brands We Service in Anaheim
We work hands-on with leading ADU and addition materials that fit Anaheim’s lots and climate. For Anaheim homeowners, we regularly specify Cover and Dvele for prefab ADUs that need to clear the city’s height and setback review cleanly, and Boxabl when a compact backyard unit is the fastest path to more livable space. These brands have documentation ready for Anaheim’s plan check, which keeps your permit moving. We order materials specific to the build, not whatever’s sitting in a warehouse. That’s how we keep Anaheim turnaround tight without cutting corners.
Common Home Addition Contractor Problems We See in Anaheim Homes
- Aluminum branch wiring from the 1960s and 1970s. Open a wall on a 1965 ranch near Anaheim’s Brookhurst corridor and you may find single-strand aluminum wiring that Anaheim’s code requires replacing on any affected circuit. A contractor who quotes the rewire after demo just moved your budget. We write it as an allowance before the job starts.
- Building a detached addition at the wrong setback. Anaheim’s side-yard and rear-yard rules differ by lot type and corner conditions. A stop-work order is expensive in time and dollars. We pull the zoning record first.
- Knob-and-tube still active in pre-1950 bungalows. Especially in Anaheim’s Colony Historic District. Your architectural review may require matching early 20th-century character. We handle both the aesthetic review and the electrical upgrade under one plan.
- Moisture intrusion on stucco add-ons during winter rains. Anaheim gets enough winter rain that a poorly flashed addition on a stucco home will show water stains within a year. We spec moisture-resistant sheathing and proper flashing on every Anaheim project.
Pricing for Home Addition Contractor in Anaheim, CA
A room addition in Anaheim runs $180 – $260 per square foot. A garage conversion typically lands at $190 – $260 per square foot. A second-story addition runs $250 – $320 per square foot. A detached ADU from a brand like Dvele or Boxabl, including foundation and utility hookups, runs $140,000 – $260,000 in Anaheim’s market. What moves the number? The age of your wiring, the condition of your foundation, the setback rules on your lot, and whether your home sits in the Colony Historic District where architectural review adds plan-check time and material requirements. The price we write before work starts is the price. If the walls reveal something we flagged as a possible allowance, you approve the change order in writing before we spend a dollar. Call (350) 203-6060 for a free estimate and a line-item quote. No guesswork. No door-price changes.
We Also Serve Cities Near Anaheim
Lodgewick ADU Orange County serves Anaheim and the nearby communities of Fullerton, Midway City, Santa Ana, and Tustin. Each city has its own zoning quirks, and our crews know them. If you’re in one of these cities and considering a room addition, a garage conversion, or a full second story, our Home Addition Contractor team can help. For Anaheim-specific questions, see our Home Addition Contractor in Anaheim page.
Serving Anaheim, CA - Our Local Coverage Area
We’re based in the Anaheim area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Home Addition Contractor in Anaheim
Anaheim’s residential code requires that any circuit you touch on a 1950s ranch be brought up to current standards, which typically means replacing aluminum branch wiring or knob-and-tube with modern Romex and adding a 200-amp panel where the existing service is undersized. The upgrade is triggered the moment the wall is open for framing inspection, not at final. We write these allowances into the contract before demo so the number doesn’t move when the inspector sees the wall open. Call (350) 203-6060 for an exact quote on your Anaheim home.
A detached addition in Anaheim must meet specific side and rear setbacks that vary by lot width and corner condition; a garage conversion uses the existing building footprint so the setbacks are already established and typically pass with fewer zoning conditions. The difference in plan check time can be weeks. We pull the zoning record before we draw the plans. Call (350) 203-6060 and we’ll check your Anaheim lot’s requirements before you spend a dollar on design.
They change because the contractor didn’t write allowances for what the walls would reveal. A 1958 stucco ranch near Pearson Park had undersized 2×4 framing notched for original wiring. We quoted the structural repair as an allowance, brought in a structural engineer, sistered the joists per Anaheim code, replaced the knob-and-tube with a new 200-amp subpanel, and wrote the upgrade as a signed change order before any new drywall went up. That’s The Kingswell Way. The price never moves without your written approval first. Estimates are free. Call (350) 203-6060.
The Colony Historic District in Anaheim requires any addition to match the early 20th-century bungalow character of the neighborhood, including setbacks, materials, and rooflines, which means architectural review before building permits. A bathroom addition or bedroom bump-out that would sail through plan check in Fullerton or Orange takes longer and costs more per square foot in the Colony. We’ve done these. We know the design cues that pass review. Call (350) 203-6060 for a free estimate on a Colony home addition.
Anaheim’s winter rains are mild but steady enough to find any gap in flashing or unsealed sheathing on a stucco addition. We use a building wrap and moisture-resistant sheathing at the tie-in, correctly flash roof-to-wall junctions, and seal all penetrations so water never reaches the framing. If water does get in during the 365-day guarantee period, we come back and fix it for free. Call (350) 203-6060 to schedule your free estimate.
Get Your Anaheim Home Addition Priced in Writing
When you’re ready to see a real number for your Anaheim addition, call (350) 203-6060. A live person will answer. We’ll walk your lot, open the permit file, and hand you a written price before any work begins. The Kingswell Guarantee covers the price, the arrival window, the cleanliness of your job site, and the workmanship for 365 days. If it’s not done right, we come back and make it right. That’s the whole point of adding space to your home.
Written by Russ Delmar, Owner at Lodgewick ADU Orange County, serving Anaheim since 2010.
