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Get your free estimateFast, Reliable Home Addition Contractor Across Sacramento
A home addition in Sacramento typically costs between $180 and $420 per square foot depending on whether you’re building out, building up, or adding a detached unit on acreage. Most Sacramento additions we scope take 4 to 9 months from first permit to final inspection, with county parcels running longer due to septic and well setback reviews. If you’re planning a second story, garage addition, or bump-out anywhere from Tahoe Park to the county line off Grant Line Road, call (279) 256-1973 and we’ll give you a written price before any work starts.
We know Sacramento’s building terrain better than most because our crews work it every week. City lots. County acreage. Flat clay that holds water all winter. Hundred-degree summers that punish a poorly insulated addition. That local knowledge changes how we quote, how we build, and how honestly we can tell you what your project will actually cost. You deserve a contractor who knows the difference between a Tahoe Park lot and an unincorporated parcel off Mather Field Road, because that difference can mean thousands of dollars and weeks of permitting.
Why Lodgewick ADU Sacramento Is Sacramento’s Preferred Home Addition Contractor Company

Lodgewick ADU Sacramento is part of the Kingswell family, established in 2010, and led by Russ Delmar. Russ built his reputation in Sacramento by doing what most contractors won’t: putting a written price in your hand before a single nail is driven, then standing behind the work for a full year under the 365-Day Done Right Promise. If something isn’t right, we come back and make it right. That commitment is in writing on every project, and every Sacramento customer gets it before we start.
Our Sacramento customers tell us the same thing again and again: they’ve been burned by a price that changed at the door or a crew that ghosted after the deposit. We built our process to eliminate both. The Kingswell Way means we say the price before the work, show up in the window we gave you, leave the site cleaner than we found it, put the guarantee in writing, and return free of charge if anything fails within the year. Background-checked, uniformed technicians are on every Sacramento job site, so you always know who’s on your property.
When you call about a home addition in Sacramento, a live person answers. Not a voicemail tree, not a chatbot. That matters at 2 p.m. when you have a permitting question and at 8 p.m. when you’re comparing quotes.
Second Story Addition Contractor in Sacramento
A second story addition contractor in Sacramento has to contend with something most cities don’t: thousands of single-story ranch homes from the 1940s through the 1970s that were never engineered to support a second floor. Before we quote, our team checks the foundation, the existing framing, and the lateral load path to confirm the structure can carry the new level. On many Sacramento ranch homes, that means adding steel beams, reinforced footings, or both, which pushes cost toward the higher end of the range. A typical second story addition in Sacramento runs $250 to $420 per square foot, with the lower end applying to simple bedroom additions and the upper end reflecting structural upgrades, stair placement, and full-width spans.
Foundation and Framing Upgrades
Sacramento’s post-war ranches were built fast and light. We regularly open walls and find 2×4 framing where 2×6 is now required, or foundation footings that predate modern seismic and shear standards. A proper second story addition means engineering the existing first floor as the new load path, and that work is non-negotiable if the addition is going to pass Sacramento inspection.
Stair Placement and Living Flow
Adding stairs to a single-story ranch eats 40 to 80 square feet of first-floor living space. We plan that loss into the design from day one so you don’t lose a hallway or a dining nook mid-construction. On tighter city lots in neighborhoods like Elmhurst, we often cantilever the stair over the existing roofline to preserve downstairs layout.
Garage Addition Contractors in Sacramento

Garage addition contractors in Sacramento work on two very different types of projects: attached garages on city lots and detached garages or shop structures on county acreage. An attached garage addition in a Sacramento neighborhood like Tahoe Park typically runs $150 to $250 per square foot and falls under the city’s streamlined permit process. A detached garage or workshop on unincorporated land off Grant Line Road is a different animal entirely, often requiring county review for well setbacks, septic distance, and driveway access, which can push costs to $220 to $350 per square foot.
Attached Garage Additions on City Lots
These projects tie directly into the existing home’s roof line and foundation. Sacramento’s flat lots make grading straightforward, and alley access in many neighborhoods actually simplifies material staging. The city’s pre-approved plans can cut weeks off the permit timeline when the lot geometry matches.
Detached Garages and Shops on Acreage
County jurisdiction changes everything. We scope these by first locating the well and septic system, then measuring the required setbacks, which can run 75 to 100 feet from a leach field. Concrete trucks need a drivable path from the road to the slab, and on long unpaved easements we often have to bring in a pumper or stage gravel in advance. These are exactly the kinds of costs a city-lot quote would miss.
Trusted Brands We Service in Sacramento
Lodgewick ADU Sacramento works hands-on with leading prefab and panelized systems including Cover, Dvele, and Boxabl, matching each system to your lot, budget, and Sacramento’s specific climate demands. Prefab panels and modules can cut on-site framing time significantly, which matters on a Sacramento acreage parcel where every extra day of crew time adds hauling and access cost. We keep a working inventory of compatibility components for these systems in our Sacramento metro operation, so when a panel arrives short or a connector needs replacing, we’re not waiting a week for parts. Russ Delmar’s team has built with all three of these systems and knows which one makes sense for a flood-prone clay lot versus a dry, compacted soil parcel.
Common Home Addition Contractor Problems We See in Sacramento Homes
- County parcels quoted with city rules. Contractors assume Sacramento’s pre-approved ADU plans apply everywhere, then get stopped at first inspection when the county flags septic and well setbacks. We verify jurisdiction before we quote, not after we start.
- Unpaved access roads that kill budgets. Long gravel or dirt easements off roads like Grant Line Road can add thousands in pumper truck fees, gravel staging, and extra material hauls. A concrete truck that can’t reach the slab changes the whole pour plan.
- Winter drainage on flat clay lots. Sacramento’s flat terrain and heavy clay soil cause water to stand against additions, leading to stem wall rot and slab cracks within a few seasons. We grade swales and plan drainage before framing begins.
- Summer heat before insulation is in. Framing a second story addition in July means working through 100°F-plus days. Proper sequencing, early roof deck installation, and shaded staging keep the crew safe and the framing dry. We don’t cut corners on heat safety, and we don’t rush the enclosed-dry-in stage.
Pricing for Home Addition Contractor in Sacramento, CA
Here are straight numbers for Sacramento’s market. A basic bump-out addition on a city lot runs $180 to $250 per square foot. A second story addition runs $250 to $420 per square foot, with structural upgrades pushing toward the top. A garage addition runs $150 to $250 per square foot attached on a city lot, and $220 to $350 per square foot detached on county acreage. Sunroom additions run $180 to $280 per square foot. What moves the price: foundation condition, soil type, access for equipment, septic and well setbacks on county parcels, and whether we’re matching existing rooflines. We give you a written price before work starts, and that price does not change at the door. Call (279) 256-1973 for a free estimate on your exact project.
Building on Sacramento County Acreage: What Actually Changes the Price

The biggest mistake we see on Sacramento acreage additions is a quote built with city assumptions. Sacramento County, not the City of Sacramento, typically has jurisdiction over home additions on unincorporated acreage. That means detached ADUs and additions there must meet county setback rules for wells and septic systems, sometimes as much as 100 feet from a leach field. City lots in neighborhoods like Tahoe Park operate under the city’s streamlined ADU ordinance instead. Two completely different permitting tracks, and few contractors navigate both well.
Our crew recently framed a detached ADU addition on a half-acre lot off Grant Line Road where we had to coordinate a 40-foot material haul around a mature oak protected by county rules. We set the addition 75 feet back from the existing septic tank and graded a swale to keep winter sheet flow from pooling against the new stem wall, all before the first inspection. That job would have been quoted completely wrong by anyone who never left the city grid. When we scope an acreage addition, we locate the well and septic first, measure the setbacks, check the access road for truck clearance, and test the soil for winter drainage. Then we write the price. That’s the only order that makes sense on Sacramento county land.
Long material hauls and concrete trucks on unpaved easements add cost that never shows up on a city quote. We factor in pumper fees, gravel staging, and the time it takes to shuttle materials down a long driveway. Grading and drainage on an open lot is another line item city quotes skip. Flat terrain and clay soil mean water needs a designed path, not just a hope that it drains. These aren’t extras we spring on you later. They’re in the written price from the start.
We Also Serve Cities Near Sacramento
Our Home Addition Contractor team serves the full metro including North Highlands, Carmichael, Mather, and Roseville. As a Home Addition Contractor in Sacramento, we dispatch and schedule from our Sacramento office, so crews reach every corner of the service area without the delays that come from running jobs out of the Bay Area. If you’re on acreage in any of these nearby communities, the county-side permitting and access concerns we cover above apply just the same.
Serving Sacramento, CA - Our Local Coverage Area
We’re based in the Sacramento 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 Sacramento
County parcels must meet Sacramento County’s setback rules for wells and septic systems, which can require as much as 100 feet from a leach field, while city lots follow the City of Sacramento’s usually smaller side and rear yard setbacks. The jurisdiction difference decides which agency reviews your plans and which setback book applies. Call (279) 256-1973 and we’ll confirm your jurisdiction before quoting.
We scope the access road before quoting and price in whatever the route requires: gravel staging for concrete trucks, pumper fees for long reaches, or shuttle hauls for materials. A concrete truck that can’t reach the slab changes the pour plan and the cost. Our written price includes that access plan so it never becomes a surprise change order at the start of the job. Call (279) 256-1973 to have your driveway condition assessed as part of your free estimate.
Yes, in most cases on Sacramento’s flat clay soil, a grading and drainage plan is required to keep winter rain from standing against the new stem wall or slab. Standing water against an addition causes rot and slab cracks within a few seasons. We design the swale or subsurface drain before framing starts, and that plan goes to the county or city with the permit. Call (279) 256-1973 and we’ll walk your lot to see what your drainage picture actually is.
Attached ADUs are allowed on many Sacramento parcels, but on unincorporated county land the septic and well setbacks often make a detached unit the only buildable option given the existing improvements’ locations. Our team evaluates the garage structure, the distance to septic and well, and the county’s setback table before recommending attached versus detached. Call (279) 256-1973 for a free site evaluation.
No, the City of Sacramento’s pre-approved ADU plans do not carry over to unincorporated Sacramento County parcels, because the county applies its own building code amendments and setback requirements. Using a city pre-approved plan on county land usually means a stop-work at first inspection. We identify your jurisdiction before any design work begins so the plans match the agency that will actually review them. Call (279) 256-1973 for a free estimate and a straight answer on which rulebook applies to your parcel.
Planning a home addition in Sacramento means getting the jurisdiction right, the access priced, the drainage designed, and the price in writing. Russ Delmar and the Lodgewick ADU Sacramento team do all four before the first inspection. Call (279) 256-1973 to schedule your free estimate, or reach our live person anytime, day or night.
Written by Russ Delmar, Owner at Lodgewick ADU Sacramento.









