Share the address and idea
We start with what you want to change, the property location and any drawings or photos already available.
Grizzly helps Sammamish homeowners start an addition or detached structure on concrete work that matches the drawings and site conditions. Sammamish is primarily single-family and often gives homeowners enough house and lot value to justify additions, high-quality decks and long-term outdoor upgrades.

Plateau soils, steep lake-facing slopes, drainage, trees and planned-neighborhood requirements can all affect scope and access.
Excavation limits, soils, drainage, reinforcement, anchor details and inspection sequencing all need to line up before the structure rises.
Critical areas, tree retention, stormwater and HOA review are important early checks for many Sammamish properties.
Always confirm current rules for the specific parcel and scope. This page is general project guidance, not a permit determination.
Real project images selected for this kind of work.



We start with what you want to change, the property location and any drawings or photos already available.
Access, grade, drainage, utilities, permitting and structural tie-ins are brought into the conversation early.
The scope and sequence get clearer before materials arrive and the work becomes disruptive.
Yes. Sammamish is within Grizzly’s selected service area, subject to project fit, travel time and current scheduling. The first step is sharing the property address and a short project description.
Critical areas, tree retention, stormwater and HOA review are important early checks for many Sammamish properties. Excavation limits, soils, drainage, reinforcement, anchor details and inspection sequencing all need to line up before the structure rises.
City of Sammamish Permit Center is the planning starting point listed for this area. The correct authority and permit type still depend on the parcel and the exact scope.
Plateau soils, steep lake-facing slopes, drainage, trees and planned-neighborhood requirements can all affect scope and access.
Ready to build? Share the basics and we’ll start with a clear, straightforward conversation.