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Woodland · Detached ADU
A freestanding backyard unit, built right for Woodland.
Its own foundation, its own roof, real separation from the main house — a true detached ADU engineered for Woodland's clay soil and run through the City of Woodland the right way.
Trusted by homeowners across Sacramento & surrounding areas.
Detached ADU in Woodland — fast facts
City
Woodland
ADU type
Detached ADU
Contractor license
CSLB #1119373
Free estimate
(916) 677-9774
Last updated
Stands completely free
A detached unit shares nothing
The thing that makes a detached ADU worth the money is the same thing that makes it the hardest type to build. It shares nothing with your house. Own foundation, own walls, own roof. We set a 648 sq ft unit on a Spring Lake lot where the owners wanted the kitchen window aimed away from the neighbor's fence, and because the unit stood completely free we just rotated it on the pad and pointed it where they wanted. That freedom is why Woodland owners go detached. The price of it? A second foundation, a separate roof system, and a materials path from a flat valley street to the back of the lot — which we map before you sign.
Independent foundation, framing, roof and full exterior envelope
Sited and oriented anywhere the setbacks allow on your lot
Most flexible ADU type — but a full ground-up build, not a conversion
City of Woodland permitting
The City of Woodland runs your permit
Woodland is its own incorporated city — the Yolo County seat — so it has a real building department with a real counter. Your detached ADU permit, plan check, and inspections all run through the City of Woodland. No county detour, no confusion over jurisdiction. There's one wrinkle that catches people, though. If your home sits in or near downtown's historic district — College Street, First Street, the Dead Cat Alley and Stephens area — anything visible on the lot gets genuine design review. Woodland holds one of the best collections of 1800s Victorian and early Craftsman homes in California, and the city protects it. We pull your zoning and any overlay first.
Reviewed and inspected by the City of Woodland, the Yolo County seat
Historic-district design review near College and First Street is real
Complete plan set drawn in-house, fewer correction rounds
Clay soil, PG&E, utility runs
Clay soil drives an engineered footing
Woodland sits on the flat valley floor, so the grading is usually easy. The dirt underneath is the catch. This is expansive clay that swells when it's wet in February and shrinks tight in a dry September, and that movement is hard on a plain slab. So a detached unit here almost always gets an engineered foundation: a soils report, then a stiffer footing or a post-tensioned slab built to ride the clay instead of cracking. Power is PG&E, not SMUD — its own service application and meter timeline. And because detached carries separate utility runs, we trench water, sewer and electrical out to the pad. We engineer the footing before pricing the build.
Engineered, soils-driven foundation for Woodland's expansive clay
Separate water, sewer and electrical runs trenched to the unit
PG&E service, panel and meter coordination — Woodland is PG&E territory
Two very different Woodlands
Old downtown or newer subdivisions
Woodland really splits into two kinds of lots, and a detached ADU lands differently on each. There are the older homes around downtown — Victorians and Craftsman bungalows, deep lots, mature trees, and that historic design review hanging over anything you can see from the street. Then there's the newer side: subdivisions like Spring Lake on the south and east edges, tract homes from the last couple decades, often inside an HOA with its own architectural rules on top of the city's. Both build fine. They just carry different homework. Downtown means matching trim, rooflines and materials to a 19th-century house. Spring Lake means clearing the HOA first. We figure out which Woodland you're in on the first visit.
Downtown Victorians and Craftsman homes — exterior matched to the era
Spring Lake and newer tracts — HOA architectural review cleared first
Strong family and multi-generational demand drives most of these builds
Build Smart. Invest Wise.
Build Your ADU. Your Investment, Your Future.
From design to move-in, we handle everything. Transparent pricing, on-time delivery, and uncompromising quality.
Custom Designs
Tailored to you
Built to Last
Premium materials
Fast Turnaround
On-time delivery
Full-Service
From start to finish
30+
Years of Experience
120+
ADU Projects Completed
100+
Happy Homeowners
Built for Value. Designed for Life.
Trusted by homeowners across Sacramento & surrounding areas.
ADU Estimator
Know Your Numbers Before You Commit
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“Every ADU we build is designed to add long-term value and open new possibilities for your property. Let's build something great together.”
— Tim, ADU Specialist
Custom Designs
Built to fit your property & needs
Turnkey Process
We handle permits, plans & everything
Built to Last
Quality craftsmanship that stands the test
Financing Made Simple
$0 Down Options. Build Now, Pay Over Time.
You shouldn't have to drain your savings to build wealth. We partner with trusted ADU lenders to find financing that fits — many homeowners build with little to nothing out of pocket.
Home Equity (HELOC)
Tap your existing equity at competitive rates — the most popular way to fund an ADU.
Renovation Loans
Finance the build against your home's projected after-completion value.
ADU-Specific Financing
Specialized lenders who underwrite based on the rental income your ADU will produce.
Cash-Out Refinance
Roll the project into a new mortgage and keep one simple monthly payment.
Estimate Your Monthly Payment
See what financing your ADU could look like — and how rental income can help cover it.
$180,000Loan amount
Credit Score
Very good · 700–739
Estimated Monthly Payment
$1,320/mo
At 7.99% APR over 30 years (illustrative)
Often offset by $2,000–$3,500/mo in rental income
No prepayment penalties with most partners
Pre-qualification with no impact to your credit
Illustrative only — not a loan offer. Actual rates and terms are set by third-party lenders based on your qualifications.
Service areas
Where we build
Headquartered in the Greater Sacramento Area and serving homeowners from the Sierra foothills down through the Bay Area. Don't see your city? We probably still get there — just ask.
The most common things Sacramento homeowners ask before starting an ADU project.
The City of Woodland. Woodland is its own incorporated city — it's the Yolo County seat — so it runs a full building department, and your detached ADU permit, plan check, and inspections all go through the city, not the county. That's actually cleaner than a lot of places we work, where an address near a city line can route to the county on a different fee schedule. In Woodland you generally know the jurisdiction up front. We still confirm your exact parcel and any overlay on the first visit before we draw anything, so the whole package is built for the right counter from the start.
Almost certainly, and it's the line that most shapes a Woodland detached build. The valley floor here is expansive clay — it swells when it's saturated in winter and shrinks as it dries out in late summer, and that seasonal movement is rough on a plain slab. So a detached ADU in Woodland usually needs an engineered foundation: a soils report, then a stiffer footing or a post-tensioned slab designed to move with the clay instead of cracking. It's not exotic — we build to it routinely — but it costs more than a basic slab, and we'd rather you know that going in. We pull the soils data and engineer the footing before we write a price.
PG&E. Not SMUD. SMUD covers Sacramento across the river and stops short of Yolo County, so in Woodland the service drop, any panel upgrade, and the new meter for your detached ADU all run through PG&E's application process — its own forms, its own timeline. Because a detached unit sits away from the main house with its own electrical run, the trench can be a fair distance, and if your existing panel is near capacity you may need an upgrade before the unit can be energized. We engage PG&E early, while the foundation is curing, so the meter isn't the thing holding up your final inspection.
It might, and it's worth checking before anything else gets drawn. Woodland has one of the best collections of 1800s Victorian and early Craftsman homes in California, and the downtown historic district carries real design review — College Street, First Street, the Dead Cat Alley and Stephens area especially. If your lot falls inside that overlay, anything visible from the street gets scrutinized: materials, rooflines, trim, how the new structure reads against a 19th-century home. A detached ADU is all exterior, so that review matters. We pull your zoning and any historic overlay on the first visit, and if you're inside it we design the unit to clear review the first time instead of bouncing through corrections.
Yes, and it's a second layer on top of the city. Spring Lake and the newer subdivisions on Woodland's south and east edges are mostly governed by an HOA with its own architectural rules — setbacks, exterior materials, color, sometimes height or roof pitch. California law keeps an HOA from banning an ADU outright, but the association can still enforce reasonable design standards, and clearing them takes its own submittal and its own timeline. We've seen owners assume the city was the only gatekeeper and lose weeks to a surprise HOA review. So we check for an HOA on the first visit and run that approval in parallel with the city permit, not after it.
Because you're pouring a brand-new foundation and framing a brand-new roof, plus all four exterior walls, siding and weatherproofing of a standalone building. A garage conversion reuses a slab and a roof that already exist. On a Woodland lot that structural difference alone is often $55K to $90K for a 600 sq ft unit — and the engineered clay-soil foundation widens it a bit further, since a conversion mostly skips that. Detached buys you a freestanding unit you can place and orient anywhere the setbacks allow, with real separation from the house. But if the lowest possible price is the goal, a conversion usually beats it, and we'll tell you that straight.
I'll give a range, then tell you what bends it. A roughly 600 sq ft one-bedroom detached unit, finished the way a Woodland owner expects, generally lands around $255K to $330K all-in for 2025-2026 — design, engineering, permits, site work, the build, utilities and finishes included. Go bigger — 1,000-plus sq ft, two bedrooms, separate utilities — and you're closer to $370K to $490K. Woodland runs a touch more affordable than Davis next door, and our pricing reflects that. The two things that bend the number most here are the engineered foundation the clay demands and the finish package you choose. We walk the lot, pull the soils, then write a fixed price rather than a square-foot guess.
Plan for two phases. Pre-construction — design, engineering, the soils report, the full plan set, and the City of Woodland permit — usually runs 8 to 12 weeks from a signed contract to permit in hand, a little longer if you're inside the historic overlay or a Spring Lake HOA, since both add a review layer. On-site construction then runs roughly 18 to 26 weeks for a standard one-bedroom unit, with the engineered foundation and the separate utility trenching as the early stretches. The variable nobody likes is correction rounds at plan check. We over-prepare the package to keep the first review clean, because the cheapest week on any build is the one you don't lose to a resubmittal.
Mostly, yes — and that flexibility is the whole reason to go detached. Because the unit stands completely free of your house, we can place it and rotate it anywhere the setbacks and the utility runs allow: front door facing the side yard for privacy, kitchen window aimed away from a neighbor's fence, the long wall turned to catch morning light. On the deeper downtown lots there's usually room to set it well back behind the main house. On a tighter Spring Lake tract lot there's less play, so we lay out the pad carefully against the setbacks. We model the siting on the first visit so you see exactly where it lands before anything's poured.
Yes — the older Victorians and Craftsman homes around downtown, plus the newer subdivisions like Spring Lake on the south and east edges. Each side has its own homework: downtown means historic design review on materials, rooflines and trim, while the newer tracts usually mean an HOA architectural approval layered under the city permit. Woodland is about 25 minutes northwest of our Sacramento home base, an easy run up the causeway, well inside our service area. We know what the City of Woodland flags, what the historic district scrutinizes, and what the clay soil demands before any of it becomes a surprise. We build detached units across all of it.
Other services
Not quite the right fit?
Every Sacramento ADU project is different. Here are the other paths we build under one roof — and we're happy to talk through which one fits your lot best.
We treat every home like it's our own — quality work, clear communication, and happy homeowners.
PaulOwner · Future Generation
9 min read1,888 words8 sections
Building a Detached ADU in Woodland — A Straight Guide for Yolo County Owners
A detached ADU is the version most Woodland owners actually have in mind: a freestanding unit with its own foundation, its own roof, and its own front door, set off the main house. It's also the version with the most moving parts, and Woodland adds a couple the rest of the region doesn't. This guide is about building one here specifically — the City of Woodland permit path, historic design review downtown, the clay that drives an engineered footing, the HOA question in Spring Lake, and the real 2025-2026 numbers. We build these for a living, so most of what follows is what we'd tell a neighbor over the fence.
01Section
What "detached" actually means here
Detached means freestanding. The unit doesn't touch your house — its own foundation, its own roof, four of its own exterior walls. That separates it from an attached ADU, which shares a wall with the main home, and from a conversion, which reuses an existing shell. All three are legitimate ADUs under California law. They build, cost, and live differently, and detached is the most independent of the three.
The appeal, and the reason it fits a lot of Woodland lots, is that independence. Because it stands alone, we place it where the lot wants it and orient it for light, privacy, and how you'll use the yard — not locked to the geometry of your house. On a deep downtown lot that means setting it well back behind the Victorian; on a tighter Spring Lake tract it means rotating carefully against the setbacks.
