BUILT FOR
PERFORMANCE.

Plan on 8–12 months end-to-end: 6–10 weeks for design and engineering, 12–20 weeks in permit review, and 16–24 weeks of active construction. Schedules tighten when the lot is flat, the design uses a pre-approved plan, and utility upgrades are minimal.

Garage conversions and attached ADUs typically deliver in 3–5 months: 4–6 weeks of design, 8–12 weeks of permitting, and 8–14 weeks of construction. The existing slab and walls usually shave 30–40% off both the schedule and the budget compared to a new DADU.

As of this quarter: Seattle SDCI averages 12–16 weeks, Bellevue 8–12 weeks, Kirkland 6–10 weeks, and Tacoma 8–14 weeks. Pre-approved DADU plans cut Seattle review to 4–6 weeks. We track jurisdiction velocity weekly and quote permit windows from current data, not last year's averages.

The three usual culprits are city correction cycles, side-sewer capacity surprises, and long-lead specialty items (windows, panels, custom millwork). We mitigate by pre-checking sewer capacity at design, ordering long-lead items at permit submittal, and assigning a permit expediter to every project.

Yes. Foundations are sequenced for the drier shoulder seasons when possible, but framing and finish work continue year-round under temporary weather protection. Our schedules include a documented weather contingency (typically 10–15 working days) so winter rain doesn't push your handover.