







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Parkway, CA
Benson ADU Builders is the ADU company Parkway homeowners call when they want a written price before any work starts. Parkway is an unincorporated pocket of Sacramento County, which means ADU permits here go through the county’s Building Department, not City of Sacramento channels. The difference trips up a lot of homeowners and a lot of contractors. Our team knows which rules apply in Parkway and which don’t, because we build here regularly. Call (279) 254-1808 for a free estimate on any ADU, home addition, or room addition.
Why Parkway Homes Are Different

Parkway’s housing stock is mostly single-family homes built between the 1940s and 1970s. The lots are often larger than what you’ll find in newer subdivisions, which is good news for ADUs. There’s room to build. The challenge is what’s underground and behind the walls. Many Parkway homes still run on original 100-amp electrical panels and aging cast iron or clay sewer laterals. Add an ADU and you add a second kitchen, a second bathroom, and a second set of appliances. That load frequently means a panel upgrade and a sewer line replacement before framing even begins. We flag those upgrades in the written estimate, so the number you see on day one is the number that holds.
Sacramento County summers hit triple digits, and Parkway is no exception. Proper insulation, roof ventilation, and efficient cooling matter more here than in coastal markets. Ductless mini-splits are a common fit for Parkway ADUs because they cool efficiently without requiring new ductwork. We design for the heat and the occasional wet winter, not just for the permit office.
Because Parkway is unincorporated, county setback and lot-coverage rules apply. They differ slightly from what the City of Sacramento enforces just blocks away. Homeowners don’t discover that until plans come back rejected. We build Parkway plans to county standards from the first draft.
Our Main Parkway Services
Parkway homeowners call us most often for three projects: full ADU construction, home additions, and room additions. Each service has its own Parkway page with pricing, timelines, and answers to the questions we hear most on estimates.
ADU Builders in Parkway
Adding a backyard ADU in Parkway means working with Sacramento County’s planning department, not a city office. That’s the single biggest difference between Parkway and the neighborhoods across the city line. We handle county submittals, plan revisions, and inspections as part of the build. Older Parkway lots often need sewer lateral replacement or an electrical panel upgrade, and we include those line items in the written estimate before you commit. Options include site-built ADUs and prefab units from brands like Abodu and Dvele. See ADU Builders in Parkway for full pricing and process details.

Home Addition Contractor in Parkway
Home additions in Parkway usually mean extending a post-war single-family home while preserving the original structure. That takes careful framing and a clear plan for tying new foundation to old. Many of these homes are wood-frame with stucco siding, and additions must meet current county energy codes even when the original home predates them. We match rooflines where possible and phase work so homeowners can stay in place as long as practical. Learn more on our Home Addition Contractor in Parkway page.

Room Addition Contractor in Parkway
A room addition in Parkway often grows out of a growing household: a new bedroom, a home office, or a larger kitchen. The work moves fast compared to a full ADU build, but the permitting path is still Sacramento County’s, and that’s where delays usually happen if plans aren’t right the first time. We handle permits, drawings, and construction under one written price. You’ll know the schedule and the cost before demolition starts. See the Room Addition Contractor in Parkway page for specifics.

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.
Brands We Service in Parkway
We build with and service prefab and materials brands many Parkway homeowners research before they call: Abodu, Cover, Dvele, and Mighty Buildings, plus James Hardie cladding. Local crews and suppliers support these builds, which keeps turnaround predictable. Visit our brands to compare options side by side.
Pricing for ADU Company in Parkway, CA
| Service | Typical range in Parkway |
|---|---|
| Detached ADU (prefab, 1 bed/1 bath) | $180,000 – $260,000 |
| Detached ADU (site-built, 1 bed/1 bath) | $220,000 – $320,000 |
| Detached ADU (site-built, 2 bed/2 bath) | $300,000 – $420,000 |
| Attached ADU conversion (garage) | $120,000 – $200,000 |
| JADU (junior ADU, 500 sq ft max) | $80,000 – $140,000 |
| Home addition (attached, 400 – 800 sq ft) | $160,000 – $280,000 |
| Room addition (single room, 150 – 300 sq ft) | $80,000 – $150,000 |
| Electrical panel upgrade (100A to 200A) | $3,500 – $6,000 |
| Sewer lateral replacement | $6,000 – $15,000 |
| Ductless mini-split install (per zone) | $4,000 – $7,000 |
What pushes the price up in Parkway is usually what’s underground: a failed clay sewer lateral or an original 100-amp panel that can’t carry a second dwelling. We price those upgrades into the written estimate instead of surprising you at the rough-in stage. You get one number, in writing, before a shovel turns.
Neighborhoods We Serve in Parkway

Parkway is small, but the lots vary block by block. We work throughout the Parkway area, including these neighborhoods and the surrounding unincorporated pockets:
- Parkway-South Sacramento
- Florin
- Meadowview
- South Land Park Hills
- Valley Hi
Because our crews stage from the Sacramento metro office, response times for estimates and site visits in Parkway are typically within a few days. The schedule gets confirmed when you book, not after you’ve already waited.
Service Area – Cities Near Parkway
Benson ADU Builders serves Parkway and the surrounding Sacramento County communities. If you’re in Sacramento, CA, Citrus Heights, CA, Davis, CA, or West Sacramento, CA, the same written-price guarantee and 365-Day Done Right Promise apply. Scheduling is handled through our Sacramento metro office, with local teams dispatched to each service area.
Serving Parkway, CA - Our Local Coverage Area
We’re based in the Parkway 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 Parkway

Most Parkway homeowners get an estimate visit scheduled within a few days of calling. Concrete date and time are confirmed when you book, and we arrive as scheduled, not in a four-hour window. Estimates are free, and the price you receive is written.
Yes. Parkway is unincorporated, so permits go through Sacramento County’s Building Department. We prepare the drawings, submit the plans, respond to correction letters, and manage inspections through final sign-off. You don’t chase paperwork.
No. The written price covers the scope we agree on. If a homeowner adds scope, we price the change in writing before that work begins. If we miss something in original discovery, the 365-Day Done Right Promise covers making it right.
Call Benson ADU Builders at (279) 254-1808 for a free, written estimate on your Parkway ADU, home addition, or room addition. You’ll know what the work costs before you decide to start.
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 Parkway Customers Say
"Fixed quote and clear change orders approved by text."
- Trina M."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.




