Single Family/Duplex

Grewalz Construction INC

Seattle area construction professional

Permit Speed
421 days
Build Speed
148 days

About Grewalz Construction INC

Grewalz Construction INC is a Single Family/Duplex contractor operating in Seattle, Washington. Based on Seattle DCI permit records, this contractor has been involved in 4 permits across Seattle's neighborhoods, with 1 currently active. Permits by this contractor average 421 days from application to issuance, with an average of 2.0 review cycles.

Track Grewalz Construction INC's Seattle construction projects including permit valuations, review timelines, and building activity across the city. Contractors listed on Building Seattle are drawn from public SDCI permit data and may include general contractors, subcontractors, and specialty trades.

Projects (4)

residential • $173,950 • new
residential • $173,950 • new
residential • $173,950 • active
residential • $700,000 • completed

WA L&I Credentials

ACTIVE

License GREWACI992DK

UBI 602093631

Insurance $1,000,000 (through January 7, 2027)

Verified via WA Labor & Industries

Market Specialization

Top Neighborhoods
South Park 3 projects
Georgetown 1 projects
Project Composition
residential

Efficiency Metrics

25%
Completion Rate
1
Active Projects
2.0
Avg Review Cycles
12
Plan-Review Days
1
Days in Corrections
-1
Net Housing Units