A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable ADU Builders Across Parkway
Adding an ADU in Parkway usually runs between $180,000 and $350,000 for a site-built detached unit, while prefab options from brands like Abodu or Cover typically land in the $160,000 to $280,000 range all-in with permits and site work. We’re Benson ADU Sacramento, and we build backyard homes, garage conversions, and additions across Parkway and the surrounding Sacramento County pockets. If you’re wondering whether your lot can support an ADU, call (279) 254-1808 and we’ll give you a straight answer, a written price, and a schedule that respects your time.
Why Benson ADU Sacramento Is Parkway’s Preferred ADU Builders Company
Parkway homeowners call us because we show up when we say we will, and we never start a project without a written price in front of you. Our ADU Builders team has worked on enough 1950s-era Parkway homes to know exactly what hides behind stucco walls and under post-war slabs. We plan for it. You approve it in writing before we touch it.
Every Benson project runs under the 365-Day Done Right Promise. If something isn’t right within a full year, we make it right. That guarantee is stamped on your contract, not buried in fine print. Our technicians are background-checked and uniformed, and a live person answers our phone around the clock. No voicemail loops. No phone tag.
Troy Eastman leads our Sacramento-area team. He has walked enough Parkway lots to spot a failing sewer lateral or an undersized panel before the county inspector does, and he insists on pricing those realities up front. That’s how we’ve earned a strong local reputation across Parkway’s older neighborhoods.
ADU Contractor in Parkway
ADU Contractor work in Parkway means managing the full build, from the first county permit submittal to the final inspection sticker, on lots governed by Sacramento County rules rather than City of Sacramento codes. Homeowners typically bring us in when they’ve outgrown their house, want rental income from a backyard unit, or need space for aging parents. A full-service ADU contract in Parkway runs $180,000 to $350,000 depending on size, foundation conditions, and utility upgrades.
County Permits and Site Work
Because Parkway is unincorporated Sacramento County, your permit goes through the county’s Building Department, not the city. Setbacks and lot-coverage limits differ slightly, and we verify those before any design reaches your desk. That saves you the cost of a rejected plan set and weeks of redraw time.
Change Orders Written, Not Surprised
We write change orders and you approve them before we proceed. That’s the Benson standard. If we open a wall and find cloth-wrapped wiring from 1958, you’ll see the exact cost to bring it to code, approve it in writing, and know your project total before the electrician starts.
ADU Design in Parkway
ADU Design in Parkway starts with your lot, not a catalog. We measure your actual rear-yard depth, check county setback requirements, and confirm where your sewer lateral and electrical service enter the property. A custom design package with structural drawings, energy calculations, and county-ready permit submittal typically runs $8,000 to $18,000 in Parkway, depending on complexity and whether you choose a site-built plan or a prefab brand like Dvele or Abodu.
Design Around County Setbacks
Parkway lots are often wide but shallow, which means a standard detached ADU footprint needs careful placement relative to rear and side property lines. County rules differ from city rules by just a few feet in some zones, and that difference determines whether you can build a two-bedroom unit or a one-bedroom. We design to the actual code that governs your parcel.
Prefab and Site-Built Options
We design both site-built ADUs and prefab layouts from brands you can research yourself: Abodu for fast factory-built installation, Dvele for high-performance envelope, and James Hardie cladding for durable, low-maintenance exteriors that stand up to Parkway’s triple-digit summer heat. You get options, not a single take-it-or-leave-it product.
Trusted Brands We Service in Parkway
Benson ADU Builders is authorized to build with leading prefab and materials brands, including Abodu, Dvele, and James Hardie cladding. When a Parkway homeowner picks a factory-built unit, we coordinate delivery, crane placement if needed, and the local site work that anchors the structure to Sacramento County code. Because crews are dispatched from our Sacramento office and serve Parkway directly, material runs and warranty follow-ups happen fast. We keep commonly-needed cladding, flashing, and panel components on hand so a warranty item doesn’t sit waiting for a shipment.
Common ADU Builders Problems We See in Parkway Homes
- Original 100-amp electrical panels. Many Parkway homes built between the 1940s and 1970s still carry their original 100-amp service. The county routinely requires a 200-amp upgrade before an ADU can pass rough-in, and we price that into your written estimate from day one.
- Cast iron and clay sewer laterals. Trenching for an ADU’s plumbing often exposes a corroded cast iron line or a cracked clay lateral. If the pipe can’t handle the added fixture load, we write the repair into a change order and get your approval before digging continues.
- Roof ventilation mismatched to mini-splits. Parkway’s hot, dry summers demand real attic airflow. We verify existing roof ventilation before recommending a ductless mini-split, because an under-vented roof defeats the system’s efficiency and creates moisture problems.
- Wrong jurisdiction assumptions. Homeowners within a few blocks of City of Sacramento limits often assume city codes apply. They don’t. County setback and lot-coverage rules govern Parkway, and plans sometimes get rejected because a designer didn’t check the right jurisdiction.
Pricing for ADU Builders in Parkway, CA
A detached site-built ADU in Parkway runs $180,000 to $350,000. A prefab unit from Abodu or a modular line typically lands between $160,000 and $280,000 with site work. Garage conversions run $90,000 to $180,000. What moves the number: panel upgrades, sewer lateral replacement, foundation work, and county-required fire sprinklers. We give you a written, line-item price before any work starts, and change orders only happen with your signature. Call (279) 254-1808 to schedule a free estimate and get the real number for your lot.
We Also Serve Cities Near Parkway
While this page focuses on ADU Builders in Parkway, our crews also cover Sacramento, Citrus Heights, Davis, and West Sacramento. If your property sits near the county line or you’re unsure which jurisdiction applies, call (279) 254-1808 and we’ll confirm it before you spend anything on design.
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 Builders in Parkway
Sacramento County requires a minimum four-foot rear and side setback for detached ADUs in most residential zones, while the City of Sacramento allows three-foot setbacks in some single-family zones. On a narrow Parkway lot, that one-foot difference can shrink your buildable footprint enough to change the unit from a two-bedroom to a one-bedroom. We check your parcel’s actual zoning before design starts. Call (279) 254-1808 for a lot-specific answer, free.
Because most Parkway homes built before 1980 still have a 100-amp panel, and Sacramento County’s current code requires 200-amp service to support the combined load of the main house and a new ADU. The upgrade includes a new meter main, grounding system, and usually a service conductor replacement. We price this into your written estimate so it never arrives as a surprise. Call (279) 254-1808 to have us check your existing panel during a free site visit.
We stop trenching, document the condition with photos, and write a change order for the repair or replacement. You approve the exact dollar amount in writing before we proceed. On a 1950s Parkway home near Ehrhardt Avenue, our crew opened a wall to tie in a new ADU subpanel and found original cloth-wrapped wiring and a corroded 100-amp panel. Because Parkway is unincorporated, the county required a full service upgrade to 200 amps and a new grounding system before we could pass rough-in. We wrote the change order, got it approved in writing, and had the homeowner in compliance within two days. That’s the standard.
Yes, converting part of an existing garage into a Junior ADU is legal in Parkway, and Sacramento County does not require the rest of the main house to be brought up to current code as long as the conversion area is properly separated and has its own egress, kitchenette, and bath. The two triggers that often pull the rest of the house into the permit are electrical service capacity and sewer connection. If your panel and lateral are healthy, the main home stays out of it. Call (279) 254-1808 for a free garage assessment.
Yes. Sacramento County enforces California Energy Code ventilation requirements regardless of your HVAC choice, and Parkway’s hot, dry summers make proper attic airflow essential to prevent overheating and moisture buildup. A mini-split cools the room but does nothing for the attic. We verify existing ventilation during design and add ridge or gable vents if the calculation comes up short. For an exact quote on your property, call (279) 254-1808, estimates are free.
Ready to see what your Parkway backyard can actually hold? Call (279) 254-1808 and we’ll walk your lot, check the county rules that apply to your parcel, and hand you a written price before any work begins. Troy and the Benson ADU Sacramento team are ready when you are.
Written by Troy Eastman, Owner at Benson ADU Sacramento, serving Parkway, CA.
