A second
home, in your
own back
yard.
Jet City ADU is a Pacific Northwest general contractor building accessory dwelling units and detached cottages — new builds and conversions — quietly, on schedule, and with a single crew you'll know by name.
We build the kind of homes that quietly outlast trends — a place for a tenant, a parent moving closer, a grown child landing, or a backyard cottage that pays for itself.
Run by Matt Matysik, Jet City ADU has spent the last decade focused on a narrow set of project types: accessory dwelling units and DADUs — new builds and conversions — plus additions, new construction, and whole-home renovations. That focus is on purpose. It lets us run a single crew, keep schedules honest, and finish with the attention to detail this work deserves.
Quietly running a single crew across the Seattle area since 2015.
King & Snohomish — Seattle, the Eastside, and the cities just north.
A small number of projects in flight means real attention, not delegated promises.
Fixed-price contracts and a written allowance schedule before we start.
Five things,
done well.
We don't take every project — we take the ones we can finish on a schedule, with the same crew, to the same standard. That short list is below.
Accessory Dwelling Units
Self-contained living spaces — kitchen, bath, and private entrance — added to your existing home or basement.
Detached Accessory Dwelling Units
Separate, freestanding homes in your backyard — full privacy, full systems, and as small or generous as your lot allows.
New Construction
Custom single-family homes built on infill lots and rural parcels across the greater Seattle area.
Additions & Add-Ons
Pop-tops, room additions, bump-outs, and second-story additions that match the home you already have.
Whole-Home Renovations
Down-to-the-studs renovations: layout changes, full MEP replacement, envelope upgrades, and a finish package that holds up.
The trades who finish your house should be the same ones who started it.
We work with a small set of trades we've known for years — framers, electricians, plumbers, tilesetters — and we plan the schedule around their availability instead of hopping between subs. The result is a quieter site, fewer surprises, and finish work that looks like it was always supposed to be there.
- ✦Weekly written progress updates
- ✦One project manager, start to finish
- ✦Dust containment on every job
- ✦Photo-documented waterproofing
- ✦Warranty walk at 30 and 90 days
- ✦Permitting handled in-house
Reviews that read like neighbors talking, because they are.
“Reliable, personable, reasonably priced, and they do excellent work. We'd hire Matt's crew again in a heartbeat.”
“Very communicative and a pleasure to work with. Every question got a real answer, and the schedule actually held.”
“On time, on budget, and the work looks fantastic. Our backyard DADU feels like it was always part of the property.”
Let's walk your site together.
Tell us a little about your project and we'll come measure, listen, and follow up with a written estimate within the week.