A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Antelope, CA
Antelope homeowners adding an ADU or home addition typically spend between $180,000 and $420,000 for a detached unit, or $120,000 to $220,000 for a garage conversion, with most projects taking 7 to 14 months from design to final inspection. What makes Antelope work different is the lot geometry: hundreds of 1980s and 1990s homes sit on wide-but-shallow parcels where mature redwoods and oaks crowd the backyard, and Sacramento County’s pre-approved ADU plans don’t always fit without careful siting. We’re Benson ADU Builders, and we put a written price in front of you before any work starts. Call (279) 254-1808 to schedule a free estimate.
Why Antelope Homes Are Different
Antelope’s housing stock is overwhelmingly suburban single-family, built mostly between 1980 and the early 2000s. Stucco exteriors, slab-on-grade foundations, and tile roofs are the norm, and most lots run 6,000 to 8,000 square feet. The catch is shape: many of these lots are wider than they are deep, which pushes detached ADUs toward side yards and awkward rear corners. Add an existing pool or a 40-year-old shade tree, and the buildable area shrinks fast. Sacramento County protects mature oaks and redwoods under its tree ordinance, so a detached unit often needs to shift several feet to avoid a costly removal permit or root-damage liability during trenching.
Climate shapes the build, too. Summer days over 100°F are common here, so we spec higher R-value wall assemblies and dedicated mini-split cooling on nearly every Antelope project. Local groundwater is hard, which means scale buildup happens faster in tankless water heaters and plumbing fixtures; we recommend a whole-house softener loop on any ADU with its own water heater. These aren’t generic upgrades. They’re decisions that come from working on this specific housing stock, and they’re priced in writing before the first inspection.
Our Main Antelope Services
Most Antelope homeowners call us for one of three projects: a detached or attached ADU, a full home addition, or a smaller room addition. Each has its own Antelope page with specifics and pricing.
ADU Builders in Antelope
A detached ADU in Antelope usually means working around trees, pools, and side-yard setbacks, which is exactly where pre-approved county plans need adjustment. We build with prefab brands like Abodu and Dvele for faster framing and tighter tolerances, and we handle the site work, foundation, utilities, and county inspections. If your lot is wide-but-shallow, we’ll show you placement options before you commit. ADU Builders in Antelope has full details on configurations, permitting, and what a site-built versus prefab unit costs here.
Home Addition Contractor in Antelope
Home additions on Antelope’s slab-on-grade homes mean matching existing stucco texture, roofline pitch, and tile color so the addition doesn’t read as an afterthought. Common jobs include primary-suite additions, extended kitchens, and family-room bump-outs that take advantage of a wide backyard. We coordinate structural engineering with Sacramento County requirements and give you a written price before demolition starts. See Home Addition Contractor in Antelope for cost ranges and timeline expectations on Antelope-sized additions.
Room Addition Contractor in Antelope
A single room addition on a 1980s Antelope home often hinges on whether the existing electrical panel has spare capacity and whether the slab can support the new footprint without pier work. We handle both, plus the finish work that makes the new room feel part of the original house. Smaller projects like a home office or fourth bedroom start in the low six figures here, with a written line-item quote before we order materials. Room Addition Contractor in Antelope breaks down what a room addition costs and how long it takes.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Pricing for ADU Company in Antelope, CA
| Service | Typical range in Antelope |
|---|---|
| Detached ADU (studio, prefab) | $180,000 – $260,000 |
| Detached ADU (2-bed, site-built) | $260,000 – $420,000 |
| Attached ADU (garage conversion) | $120,000 – $220,000 |
| JADU (interior conversion) | $80,000 – $150,000 |
| Primary-suite addition | $140,000 – $280,000 |
| Kitchen extension (200 – 300 sq ft) | $110,000 – $210,000 |
| Family-room bump-out | $90,000 – $190,000 |
| Single room addition (home office/bedroom) | $70,000 – $140,000 |
| Foundation and slab work (prep for ADU) | $15,000 – $45,000 |
Prices in Antelope climb when a project requires tree-protection measures, pool demolition or relocation, or panel upgrades on older homes. Your written price from Benson ADU Builders fixes the scope before work begins, so a tree root or an undersized breaker doesn’t turn into a change order at your door.
Neighborhoods We Serve in Antelope
We work across Antelope from the older subdivisions near Antelope Road to the newer developments along Elverta Road and Walerga Road. Our crews know which pockets have HOA design-review requirements and which lots sit in county tree-protection zones without a review board.
- Antelope Hills
- Barrett Ranch
- Parkoaks
- Walerga area
- Quail Glen
Response time for an Antelope estimate is typically within 2 to 4 business days, depending on how many site visits we have scheduled that week.
Service Area – Cities Near Antelope
Beyond Antelope, we serve homeowners in Elverta, CA, Citrus Heights, CA, Fair Oaks, CA, and Granite Bay, CA. Lot sizes, tree ordinances, and county versus city permitting shift at each border, so we treat each jurisdiction as its own job rather than a copy-paste from another city.
Brands We Service in Antelope
We build with prefab ADU systems from Abodu, Dvele, and Mighty Buildings, plus panelized options from Cover. Panels and components are ordered to project spec, which keeps lead times predictable. See our brands for the full list and what each system offers.
Serving Antelope, CA - Our Local Coverage Area
We’re based in the Antelope 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 ADU Company in Antelope
Most Antelope ADUs move from signed contract to first site work within 4 to 8 weeks, depending on prefab lead time and whether tree-protection review is required. Design and permit approval typically take longer than mobilization. Call (279) 254-1808 to get an exact schedule for your lot.
Some Antelope neighborhoods have HOAs with design-review requirements for exterior changes, including detached ADUs. We review your HOA covenants before finalizing plans so you don’t hit a delay mid-permit. Call (279) 254-1808 and we’ll check during the estimate.
If any covered work fails within 365 days of completion, we return and make it right at no charge, in writing, on every Antelope project. The scope is defined in your contract before work starts. Call (279) 254-1808 for a free estimate and the full guarantee language.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Antelope Customers Say
"Booked a consult online and met the project manager two days later. Weekly progress updates arrived by text with photos. ADU finished on schedule."
- Hannah W."Room addition off the kitchen. Framing, drywall, and paint all done well."
- Wade L."Great build. Inspection delay, the county's fault, pushed things a week, but updates were clear."
- Soo-jin P.
