Design + Build · Pacific Northwest
It's never about the house — it's about the people who live in it.
People, not floor plans
Before we draw a single wall, we want to understand exactly who our clients are: their identity, their lifestyle, their life stage. We design and build the house around that, not the other way around — because you deserve a builder you can trust.
Who we build for
A women-owned, licensed general contractor in Bellevue, Washington, specializing in multi-generational living — additions, ADUs, in-law suites, and remodels for families with aging parents moving in, not moving out. Our founders each lived this exact problem before building the company to solve it.
Specialists in complex work
We specialize in additions and heavy remodels with complex structural changes. Open up old walls and there are always surprises waiting — so we only work with trades who are true specialists in their craft and who sync closely with ours to deliver the result our clients envisioned.
Design and build, together
Design and build aren't separate phases here — the same team that maps your full project scope stays with you through construction. That's an accurate budget from the start, no handoff, and changes handled transparently rather than letting the number quietly grow.
Remodels · Additions · ADUs
We Build In Our Community
We take the best client experiences and make them an integral part of our process. Our definition of success is a family that loves their finished home — and trusted us every step of the way to get there.
We brought two generations under one roof and were terrified it would feel like a compromise. It doesn’t. Tillit designed it so everyone has privacy and dignity — and we always knew where the project stood.
Our design team stayed with us from the first sketch through the final walkthrough. No handoffs, no re-explaining. The budget they gave us up front is the budget we finished on.
Jeff’s crew was professional from day one, and the communication was the best part. We checked the portal when we wanted and trusted the process the rest of the time. We couldn’t be happier.
Any builder can add square footage. Exceptional builders understand the family behind the ask — and create a process where clients make the right decisions and enjoy getting there.
Meet the Founders →Looking for inspiration? See how we've reworked homes across the Pacific Northwest to fit real, changing families.
View Projects →Projects
We build for every kind of family. Our projects range from single-room reconfigurations to whole-home transformations and detached suites — heavy on craft, designed around how you actually live.
"For the first time since my parents moved in, everyone in this house has a place that feels like their own. Tillit understood that before we could even put it into words."
Let's Get to Work
Tell us about your home and the family who lives in it. We'll walk you through what's possible, what it takes, and what it costs — and get back to you within two business days.
Start Your Project