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Get your free estimateFast, Reliable Home Addition Contractor Across Lakewood
Adding onto a Lakewood home usually costs between $180 and $420 per square foot, depending on whether you’re bumping out a bedroom, adding a sunroom, or going up for a second story. A typical bedroom addition in Lakewood runs $95,000 to $185,000 total, and most projects take 10 to 16 weeks from permit to final inspection. We know Lakewood’s 1950s and 60s tract homes inside and out, and we quote the real cost before we open a single wall. If you’re planning an addition anywhere in Lakewood, call (562) 362-3885 and we’ll give you a written price, not a guess.
Why Benson ADU Long Beach Is Lakewood’s Preferred Home Addition Contractor Company

Lakewood homeowners keep calling us because we treat a home addition like a construction project, not a sales pitch. Troy Eastman runs every job with a straightforward rule: the price we put in writing before demo day is the price you pay, unless we both sign off on a change order first. That matters in Lakewood, where homes off Del Amo Boulevard and Carson Street were built tight and tidy in the 1950s, and opening one up often uncovers wiring, framing, and waterproofing that hasn’t been touched since Eisenhower was president. We’ve worked on ranch-style homes near Mayfair Park, storybook-style houses around the Lakewood Country Club, and everything in between. Our Home Addition Contractor team includes background-checked, uniformed technicians who arrive when we say they will, and every project carries a written guarantee and the 365-Day Done Right Promise. That means if something isn’t right within a full year, we come back and make it right, in writing, at no charge.
Lakewood residents also appreciate that we’re authorized to build with brands they can research themselves, including Abodu, Cover, and James Hardie materials. You don’t get a take-it-or-leave-it product. You get curated options with named suppliers and a price for each. And when you call, a live person answers, not a voicemail loop.
Bedroom Addition Contractor in Lakewood
A bedroom addition contractor in Lakewood usually starts by figuring out how the new square footage ties into a 5,000 to 7,000 square foot lot that was platted decades before current setback rules existed. Bedroom additions on Lakewood’s single-story ranch homes typically run $95,000 to $185,000, with most falling in the $115,000 to $150,000 range once permits, finishes, and the inevitable electrical and framing corrections are included. Homeowners add bedrooms when an aging parent moves in, when a second child arrives and the original two-bedroom floor plan stops working, or when a dedicated home office becomes non-negotiable. On Lakewood’s 60-foot-wide lots, a rear-facing bedroom addition is usually the cleanest path because it preserves the front elevation and keeps the mid-century streetscape intact.
Opening Walls on a 1950s Lakewood Ranch
Before we quote a bedroom addition, we inspect the wall where the new square footage will tie in. Lakewood homes built between 1949 and 1965 often have original 2×4 studs that have twisted over seven decades, aluminum branch wiring paired with newer copper, and stucco that has shrunk and cracked along the seams. We write an allowance into the contract for exactly these conditions, so when we find them, you’re not surprised. You see photos, you see a fixed price for the correction, and you approve it in writing before we touch it.
What the City Requires When You Open a Wall
Once a wall is open, Lakewood’s building department requires the exposed portions of the home to meet current code, not 1954 code. That frequently means arc-fault breakers on bedroom circuits, proper header sizing over any opening we widen, and shear wall upgrades if the addition changes the lateral load path. On one 1954 ranch-style home off Centralia Street, our crew opened an existing bedroom wall to tie in an addition and found aluminum wiring paired with copper, a sagging header over the original window, and tar paper that had failed along the stucco seam. We shut down that circuit, wrote a change order with photos and a fixed price, rebuilt the header with an LVL beam, and upgraded the wiring to arc-fault breakers. The permit inspection stayed on schedule because we didn’t guess and we didn’t cut corners.
Sunroom Addition in Lakewood

A sunroom addition in Lakewood typically runs $55,000 to $110,000, with the final number driven by whether it’s a three-season room with single-pane glazing or a fully conditioned four-season space with insulated glass and a dedicated mini-split. Lakewood’s mild Mediterranean climate means a sunroom rarely needs air conditioning in the traditional sense, but proper insulation and moisture control matter because of winter rainfall and the coastal fog that rolls in from Seal Beach and Long Beach. Homeowners use sunrooms as breakfast nooks, plant rooms, or quiet sitting spaces that capture morning light off the rear yard without the full cost of a site-built addition.
Neighbor Compatibility and Design Review
Lakewood was built as a meticulously planned community, and that planning still shapes what you can build. A sunroom addition that faces a neighbor’s yard or sits close to a side lot line may trigger a design review, especially if it alters the visual rhythm of the block. We handle the drawings, the neighbor notification, and the review process. Having a contractor who knows Lakewood’s design standards means the sunroom gets approved the first time, not sent back for revisions that burn three weeks.
The Rear Alley Question
Before we quote any detached addition or sunroom in Lakewood, we check whether the property has a rear alley. Many Lakewood homes do have separate rear alleys, which aids ADU access and utility connections. But many do not, and when the garage is the only off-street parking, losing it to a sunroom addition can trigger a variance. We flag that in the first conversation, not after demolition starts. It’s the difference between a fixed price and a moving target.
Trusted Brands We Service in Lakewood
We build with brands Lakewood homeowners can look up and verify on their own. That includes Abodu and Cover for prefab panel systems that cut framing time, and James Hardie cladding when the addition needs to match existing stucco without the maintenance headaches. We keep commonly specified materials stocked for Lakewood jobs, so a replacement panel or a change in exterior finish doesn’t stall the schedule for two weeks. You’ll see brand names on your written quote, not vague phrases like “quality materials.”
Common Home Addition Contractor Problems We See in Lakewood Homes
- Original 2×4 framing that has twisted or shrunk. Lakewood tract homes from the 1950s and 60s used green lumber that dried in place over decades. When we open a wall, we often find studs that won’t accept a straight drywall line without correction.
- Aluminum branch wiring paired with copper. This was common in Lakewood homes built in the 1960s. Once a wall is open, current code requires us to address it, and we include a written allowance so you know the cost before we find it.
- Failed waterproofing at stucco seams and window openings. Lakewood’s winter rainfall and persistent coastal fog mean old tar paper and 1950s flashing eventually rot. Cutting into a wall during an addition is the moment you discover it.
- No rear alley, and a garage that’s the only off-street parking. Many Lakewood lots have separate alleys, but those without often need creative site planning to avoid losing parking when an addition or ADU takes over the garage footprint. We check this before quoting.
Pricing for Home Addition Contractor in Lakewood, CA
Here’s what Lakewood homeowners can expect. A bedroom addition runs $95,000 to $185,000. A sunroom addition runs $55,000 to $110,000. A second-story addition runs $220,000 to $400,000, and a bump-out addition of 150 to 250 square feet runs $45,000 to $85,000. What moves the number most is what’s inside your walls, particularly on Lakewood’s 1949 to 1965 housing stock where original wiring, framing, and waterproofing are nearly guaranteed to trigger code upgrades. We handle that with a written allowance and photo-backed change orders, so the final price stays close to the first one. Call (562) 362-3885 for a free estimate on your Lakewood addition. You’ll get a line-item price, not a ballpark.
We Also Serve Cities Near Lakewood
Our crews work throughout the area around Lakewood, including Long Beach, Signal Hill, Seal Beach, and Artesia. If you’re just outside the city line, we can still help. See our Home Addition Contractor in Lakewood page for details on how we serve the surrounding neighborhoods, or call (562) 362-3885 and tell us your cross streets.
Serving Lakewood, CA - Our Local Coverage Area
We’re based in the Lakewood 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 Lakewood
Lakewood’s building department requires exposed portions of the home to meet current code, which typically means arc-fault breakers on bedroom circuits, proper header sizing over any widened or new openings, and shear wall upgrades if the addition changes lateral loads. The trigger is the wall being open, not whether the original work was legal in 1954. We write an allowance for these corrections into your contract so the cost is known before demolition, and any actual finding is priced and approved in writing before we proceed. Call (562) 362-3885 for an exact quote on your specific home.
Lakewood’s pre-planned street grid built on 60-foot-wide lots with consistent front yard setbacks means many homes already sit close to the limits of what current zoning allows. When an addition pushes into a side yard setback, reduces off-street parking, or alters the front elevation, the city requires a variance and often a design review. The lot size alone doesn’t prevent this. We check your property’s setback and alley access before we quote anything, so you know up front if a variance is in your future. Call (562) 362-3885 and we’ll pull the lot data while you’re on the phone.
We stop work immediately, document what we found with photos, and bring in a licensed testing or abatement contractor if asbestos is suspected. For failed waterproofing, we price the repair with a written change order, show you the photos and the line item, and only proceed after you approve it in writing. Lakewood’s coastal fog and winter rains mean failed tar paper behind stucco is common, and it’s cheaper to fix when the wall is already open than after the addition is finished. Call (562) 362-3885 to discuss your project, and ask us about our written allowance process.
Sometimes yes, but it depends on the condition of the original framing, the foundation type, and whether the existing stud wall can carry the load. Lakewood storybook-style homes often have 2×4 stud walls that were never designed for a second story, so we typically need to add structural framing, a new beam line, or in some cases, a full engineered retrofit. We bring a structural engineer on site before we quote a second-story addition, and we write a written price that includes the engineering review. Call (562) 362-3885 to schedule a structural assessment on your Lakewood home.
We prepare the drawings, submit them for design review, and handle the required neighbor notification as part of the permit process. Lakewood’s planned community standards mean the city cares about how an addition looks from the street and from adjacent yards. Our job is to get you through that review without a second submission cycle. We’ve done it enough on Lakewood homes to know what gets flagged and what passes. Call (562) 362-3885 and we’ll tell you whether your sunroom is likely to trigger review before you spend a dollar on drawings.
Written by Troy Eastman, Owner at Benson ADU Long Beach, serving Lakewood and the surrounding area.



