From signed contract
to first month's rent
in five months.
Most DADU builds run nine to twelve months. Ours run five. Here's exactly how — every step, every dollar, every signature, before any of it happens to you.
Permitting and factory build run concurrently — the calendar collapses from 9–12 months to 5.
Site walk and pro forma
We come to your lot. We measure. We tell you the truth.
One of our project managers tape-and-laser the buildable rear, walks the utility runs from the street to where the unit will sit, photographs the trees, and pulls a parcel report on the way back to the truck. By the end of week one, you have:
- Hard, fixed quote — soft costs included, no "starting at"
- Permit timeline by jurisdiction with named planner contact
- Fixed all-in price + rough payback math based on local rent comps
- Honest go / no-go on whether your lot pencils — including the lots that don't
Design phase
You pick the colors. We lock the spec book.
Pre-engineered doesn't mean cookie-cutter. You sit down with our designer — in the showroom or over Zoom — and pick from the curated spec book. Each plan has three or four looks dialed in, so most clients decide in an afternoon. The swap-ins are real choices, not pre-fab compromises.
- Cabinet color and door style — shaker or slab, six finish options
- Countertop — quartz, butcher block, or solid surface
- Flooring — luxury vinyl plank, engineered hardwood, or polished concrete
- Bathroom tile pattern, accent color, and grout
- Interior paint scheme — three curated palettes plus custom
- Exterior siding color, trim accent, and roof color
- Optional upgrades — gas range, soaking tub, deck extension, smart locks
Plans, permits, foundation
Three things start the same week. None of them wait for the others.
With finishes locked, the site fit takes about three days — orientation, foundation type, utility tie-in points, exact lot placement. The same week we submit to the jurisdiction, your factory slot opens and your foundation crew gets put on the schedule.
~3 mo · Pierce
Plan review, building, mechanical, plumbing, electrical. We respond to comments same-week — that's why our permits land faster than spec.
2–6 wks
Foundation, utility trenching from the street, electrical sub-panel, sewer connection. Pours when the planner says yes.
~12 wks
Framing through finish, indoors. Weekly photo updates. By the time the foundation cures, the unit is ready to ship.
Set day
A crane, a flatbed, six hours, and a building.
The unit ships overnight on a low-boy. Crane arrives at 7 a.m. We've already pulled the right-of-way permit if your driveway needs it. By 1 p.m., the building is on the foundation. By 5 p.m., the seam is weather-sealed and the porch is on. Neighbors take photos. You take a deep breath.
Stitch, finish & landscape
Plumbing, power, gas, paint — then we make the lot look like a finished home.
Stitch week ties the unit to the utility services we ran during foundation. Mechanical inspection, plumbing inspection, electrical inspection, building final — usually all in the same week. Touch-up paint. Final cleaning. Then we hand the lot to our landscape crew so what your tenant sees on move-in day looks like a finished home, not a construction site.
Landscaping & beautification — included
- Final grading and topsoil dressing around the foundation, sloped 5% away for drainage
- Sod or native PNW seed mix on the buildable yard (sword fern, salal, kinnikinnick on shaded edges)
- Concrete walkway from primary residence to DADU entry (4×30 ft standard) plus a small front pad
- Two screening shrubs at the front entry and a hardscape gravel bed at the dryer-vent corner
- Down-cast exterior LED lighting at the entry, dusk-to-dawn sensor, no light spill to neighbors
- House-number plate and a single piece of fence/screen between main house and DADU if line-of-sight requires it
- Construction debris hauled, mulch laid, irrigation stub left at the meter for future drip if you add planters later
Mature trees and decorative beds beyond this baseline are quoted separately — most clients add $4–8K worth of plantings, but it's optional and we'll never bundle it into the contract without your sign-off.
Certificate of occupancy
The unit is legally rentable.
We hand you the C of O, the warranty packet, the as-built drawings, the permit close-outs, and the appliance manuals in one binder. Keys to you. Most clients have a tenant signed within two weeks.
Fixed price.
What's actually in it.
"Starting at" is a sales tool. We don't use it. The number on your contract is the number on your final invoice — assuming you don't change finishes mid-build.
Included in the contract
- Pre-engineered architectural and structural drawings
- All jurisdictional permits and plan-review fees
- Foundation: footing, stem, slab, perimeter drain
- Utility connections: sewer, water, electric, gas (where used)
- Trenching from main service to the unit
- Factory-built unit, fully finished interior
- Crane, set, weather-seal, stitch
- Heat pump mini-split, ERV, smart thermostat
- Final cleaning and certificate of occupancy
- 10-year structural warranty + 1-year workmanship warranty
Quoted separately at the site walk
- Long driveway runs (over 60 ft from the street)
- Retaining walls, regrading, rockery, complex drainage
- Tree removal requiring an arborist or city permit
- New service drops (if existing 200A panel is full)
- Septic systems (we strongly recommend sewered lots)
- Custom finishes outside the standard spec sheet
- Furnishings, window treatments, landscaping
- HOA application fees (if applicable)
How draws work.
Construction lenders disburse on milestones. So do we. Cash builds and rehab loans (HomeStyle, VA Reno) follow the same pattern.
Contract signed
Mobilization. Plans finalized, factory slot reserved, permits filed.
Foundation poured
Permits issued. Foundation cured. Utility trenching complete.
Set day
Unit lands on foundation. Stitched to utilities. Weather-sealed.
C of O
Final inspection. Walk-through. Keys handed over. Warranty starts.