Fast, Reliable Home Addition Contractor Across Reseda
Home additions in Reseda cost between $145,000 and $420,000 depending on scope, with second-story additions running $180,000 to $420,000 and garage additions typically landing between $95,000 and $200,000. We plan around your family’s routine, protect floors and air quality inside the home, and hand you a written price before any tool is picked up. Our crews know Reseda Boulevard, Sherman Way, and the ranch tracts off Lindley Avenue, and we answer the phone live at (707) 383-5338 when you’re ready to talk numbers.

Reseda sits deep in the western San Fernando Valley, and its housing stock has a split personality: rows of mid-century ranch homes with detached garages set well back from the street, and newer master-planned pockets where HOA architectural review shapes every addition. That split changes how we approach each project, which is why we don’t hand Reseda homeowners a generic plan. We match the work to the lot, the era of the home, and the rules that govern it.
Why Seedling ADU Builders Is Reseda’s Preferred Home Addition Contractor Company
We’ve walked enough Reseda properties to know what’s behind the stucco and under the slab. Ben Ortega leads our team, and he’s the first person to tell you that a Reseda addition starts with a foundation assessment, not a framing plan. The 1994 Northridge earthquake left its mark on this neighborhood, and we’ve found cracked stem walls and undocumented concrete patches on homes that looked perfectly sound from the curb. That’s not a reason to avoid adding on. It’s a reason to work with a crew that knows to look.
Our Reseda customers tell us the same things: they want a crew that shows up when they say they will, leaves the driveway clear at night, and doesn’t surprise them with a change order. The Cedarwell Care Promise is how we deliver that. Shoe covers and drop cloths inside your home, pet-safe products wherever there’s a choice, and a photo of the clean-up before the crew leaves. Every visit. It’s written into how we work, not an upsell.
And when you call (707) 383-5338 during a build, a live person answers. Not a voicemail tree. Not a next-day callback. That matters when you have a question about a permit inspection at 7 a.m. before the kids leave for school.
Second Story Addition Contractor in Reseda
When a Second Story Addition Contractor in Reseda looks at your single-story ranch, the first question is whether the existing footings can carry the load. Many of these 1950s and 60s homes were built on modest perimeter foundations, and adding a second story means pouring new footings, not just bolting on a new floor. A second-story addition in Reseda runs $180,000 to $420,000 depending on square footage and whether you’re expanding over the garage or over the main living space.
Foundation Work Before Framing
We don’t frame a second story until the foundation is right. In Reseda, that often includes post-quake assessment and thickened pad footings. The Northridge epicenter was only 1 to 2 miles north of central Reseda, so those old stem walls have been through more than most.
Working Around the Family
A second story means living through vertical construction. We sequence the loudest work outside school hours where possible and keep drop cloths down the entire path from the entry to the stairwell. You come home from carpool to a clean yard, not a lumber yard.
Garage Addition Contractors in Reseda
Garage Addition Contractors in Reseda see a lot of detached rear garages with real potential. These postwar garages were built set far back from the street on the old agricultural-subdivision lots, and most already satisfy LA’s setback requirements for a legal garage-conversion ADU. That’s uncommon. In adjacent Valley neighborhoods like Canoga Park, you often need variances. In Reseda, the lot geometry usually works in your favor, and a garage addition or conversion typically runs $95,000 to $200,000.
Foundation Surprises on Older Garages
Before we convert a detached garage, we look at what’s under it. We’ve found cracked stem walls and unpermitted structural patches from after the 1994 quake. Fixing that means pouring a thickened pad footing and re-anchoring before framing, which protects the rest of the build.

Panel and HVAC Requirements
Most Reseda ranch homes still carry 100-amp panels. A garage conversion with a kitchenette and mini-split will need a panel upgrade to 200 amps, and the mini-split has to be sized for real Valley heat. A coastal-size unit will underperform here in July.
Trusted Brands We Service in Reseda
Reseda homeowners researching ADUs and additions usually run into the same names: Abodu, Cover, and Dvele. We work with all three, and we help you choose the right product for your lot rather than pushing whatever we prefer to sell. On the materials side, we use James Hardie siding and trim on most of our Reseda additions because it holds up to the Valley’s sun without warping. We keep local stock for Reseda jobs, so material lead times don’t stretch your timeline.
Common Home Addition Contractor Problems We See in Reseda Homes
- Uninspected post-quake foundation damage: Homes near the Northridge epicenter often have cracked stem walls and undocumented concrete patches from 1994. Skipping a foundation assessment before adding on is the fastest way to blow up your budget mid-project.
- Undersized HVAC for interior-Valley heat: Reseda regularly hits 105 to 110°F in summer. A mini-split sized for coastal LA will run constantly and still leave the new space uncomfortable, especially on a west-facing wall.
- Electrical panels from the 1950s and 60s: These ranch homes were built with 100-amp or sub-100-amp panels. Any meaningful addition or ADU requires a panel upgrade to support the new load.
- Tearing out builder-grade finishes that are fine as-is: Newer master-planned homes in Reseda have cabinetry and doors that are perfectly serviceable. Ripping them out on day one wastes money better spent on the envelope and the electrical panel.
Pricing for Home Addition Contractor in Reseda, CA
A room addition in Reseda starts around $145,000. A second-story addition runs $180,000 to $420,000. A garage conversion or garage addition lands between $95,000 and $200,000, and a bathroom addition typically runs $60,000 to $120,000. What moves the number most: foundation condition, panel capacity, and whether your lot requires HOA architectural review or a variance. We give every Reseda homeowner a written price before work starts, with no surprise line items added after the crew arrives. Call (707) 383-5338 for a free estimate and a real number for your specific home.
We Also Serve Cities Near Reseda
Our crews move between Reseda and the surrounding Valley neighborhoods daily. We serve Reseda along with Tarzana, Northridge, Encino, and Canoga Park. If you’re just over the line in any of those cities, the same written pricing and Cedarwell Care Promise apply. You can also read more about our broader service area on our Home Addition Contractor page.
Serving Reseda, CA - Our Local Coverage Area
We’re based in the Reseda 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 Reseda
Usually not on the main house, but the answer depends on how your builder structured the warranty and whether your HOA has recorded architectural restrictions. The safe move is to pull a copy of the warranty documents before you start, and to have the addition permitted and inspected through the City of LA. Unpermitted work is what most commonly voids a builder warranty. Call (707) 383-5338 and we’ll walk you through what to check before committing to anything.
Yes, in nearly every case. A 100-amp panel was standard for the 1950s and 60s ranch homes that dominate Reseda, and adding a second story, a bathroom addition, or a garage-conversion ADU pushes past what that panel can safely carry. Plan on a 200-amp panel upgrade as part of the project, and we’ll include it in your written price up front so it’s not a surprise.
Because the 1994 Northridge earthquake happened less than two miles away. Older Reseda garages frequently show cracked stem walls, undocumented post-quake concrete patches, and unpermitted structural repairs that were done quickly after the quake and never properly recorded. We treat a foundation assessment as a requirement on every garage conversion in Reseda, not an optional add-on. It’s the difference between a clean build and a mid-project scope change. Call us for an exact quote after we look at your slab.
Some do, and the restrictions vary by development. Newer master-planned pockets of Reseda often have recorded architectural review processes that govern exterior finishes, rooflines, and even window placement, and those rules apply on top of City of LA permits. We’ve worked through enough of them to know which developments are straightforward and which ones require more paperwork. The earlier you involve the HOA, the smoother the project goes. Call (707) 383-5338 for help figuring out what your specific HOA will require.
Replace anything that touches energy performance and safety first: the builder-grade insulation package, the underperforming HVAC, and any hollow-core doors on bedrooms you use daily. Leave the builder-grade cabinetry, countertops, and hardware if they’re in decent shape. It’s very common to see homeowners pull out perfectly good cabinets while the home still has an underperforming envelope. In Reseda’s summer heat, insulation and west-facing wall treatment matter more than a nicer range hood.
Have a question we didn’t cover? Call (707) 383-5338. You’ll reach a live person who can talk through your specific street, your lot, and your plans.
Written by Ben Ortega, Owner at Seedling ADU Builders, serving Reseda and the surrounding San Fernando Valley.