Ravenna construction evidence

Retaining wall construction in Ravenna

Compare five active companies across six Ravenna retaining-wall permit records, with linked-project, ravine, access, site-work, and drainage context.

Five companies, while six records represent five company-level examples

The selected Ravenna records connect five active Washington contractors to retaining-wall construction scopes. On September 13, 2026, every detailed Seattle Services Portal record displayed a Contractor License number matching the company’s active Washington L&I license. Four companies have completed records in this slice; Van Zandt Design Build has a currently Issued permit, not a completed one. Two Build & Restore permits, 7009819-CN and 7023193-CN, describe wall and driveway work across two adjacent lots and both direct review to master permit 7009819-CN. They are two linked records, not two independent examples of company experience.

The other records document new walls with exterior stairs and a driveway, alterations with site improvements, retaining walls with associated site work, and a broadly described retaining wall. Keeping those contexts visible prevents a six-permit count from hiding the differences in access, coordination, status, and project scale.

Local permit slice

Selected Ravenna retaining wall construction records

5matching companies
6matching permits
2021–2024issue-year span
$5,000–$35,000declared-cost range

These are past permit descriptions—not a current service-area claim, endorsement, bid comparison, or neighborhood price guide.

Neighborhood-specific context

Ravine, site-work, driveway, and stair coordination in Ravenna

The neighborhood aggregate maps 3.61% steep-slope overlap, 7.38% liquefaction-prone-area overlap, and one historical known-slide event point. Seattle Parks describes the Ravenna Park landform as a drainage ravine cut through glacial till by meltwater from glacial Lake Russell. That describes the park ravine; it does not establish the subsurface conditions of every Ravenna parcel.

Several selected records combine walls with driveways, stairs, or associated site work. For comparable bids, the approved elevations, vehicle and stair loads, excavation sequence, drainage, guards or handrails, utilities, access, erosion control, and restoration need one coordinated responsibility matrix. Where two parcels or permits are involved, the scope should name the controlling permit and drawings for each lot.

Official mapped context3.61% steep slope0% potential slide area0% known-slide affected property1 historical event points

Open the complete Ravenna geology and neighborhood evidence →

Companies in the selected Ravenna retaining wall construction records

The table shows five companies and six records while explicitly keeping the two-lot Build & Restore scope together. Registration status concerns the company; permit status concerns the historical project and should not be conflated.

CompanySelected permitsRecorded retaining wall construction scopeLatest matchVerification
Stabuilt LLCWA #STABUL*782LN

General contractor. Office listed in Lynnwood (North King / South Snohomish); 3 primary-scope Seattle permits observed since 2021.

1Permit 6930538-CN: wall alterations and site improvements; portal license STABUL*782LN matches Stabuilt LLC.Mar 21, 2023Active through Jun 15, 2028Full profile →
View 1 selected permit record

Construct alterations to retaining wall and site improvements adjacent to Single-Family Residence per plan.

6930538-CN · Completed · issued Mar 21, 2023 · Ravenna · $35,000Official Seattle record ↗
Build & Restore LLCWA #BUILDRL905MO

General contractor. Office listed in Edmonds (North King / South Snohomish); 2 primary-scope Seattle permits observed since 2021.

2Permits 7009819-CN and 7023193-CN: one linked two-lot wall and driveway scope; both show portal license BUILDRL905MO.Oct 29, 2024Active through Aug 1, 2028Full profile →
View 2 selected permit records

Construct new garage and site improvements accessory to existing one family dwelling per plan. Construct retaining walls and driveway across two adjacent lots per plan. Scope of work (both parcels) will be reviewed under 7009819-CN.

7009819-CN · Completed · issued Oct 29, 2024 · Ravenna · $30,797Official Seattle record ↗

Construct retaining walls and driveway across two adjacent lots per plan. Scope of work for both parcels reviewed under 7009819-CN.

7023193-CN · Completed · issued Oct 29, 2024 · Ravenna · $5,000Official Seattle record ↗
Dochnahl Construction Inc.WA #DOCHNC*241R9

General contractor. Office listed in Renton (South King); 2 primary-scope Seattle permits observed since 2021.

1Permit 7025778-CN: new walls with exterior stairs and a driveway; portal license DOCHNC*241R9 matches Dochnahl Construction Inc.Aug 2, 2024Active through Jul 3, 2028Full profile →
View 1 selected permit record

Construct new retaining walls for new exterior stairs and driveway for existing building per plan.

7025778-CN · Completed · issued Aug 2, 2024 · Ravenna · $5,000Official Seattle record ↗
Nussbaum Group Inc.WA #NUSSBGI914BZ

General contractor. Office listed in Redmond (Eastside); 2 primary-scope Seattle permits observed since 2021.

1Permit 6852041-CN: a broadly described retaining wall; portal license NUSSBGI914BZ matches Nussbaum Group Inc.Aug 25, 2021Active through Jan 12, 2027Full profile →
View 1 selected permit record
Van Zandt Design Build LLCWA #VANZAZD870PS

General contractor. Office listed in Seattle; 1 primary-scope Seattle permit observed since 2021.

1Permit 7012490-CN: retaining walls and associated site work; portal license VANZAZD870PS matches Van Zandt Design Build LLC. Permit status is Issued, not Completed.Apr 17, 2024Active through Oct 19, 2027Full profile →
View 1 selected permit record

Construct retaining walls and associated site work per plans. (Any work in the right of way requires a separate SDOT permit.)

7012490-CN · Issued · issued Apr 17, 2024 · Ravenna · $12,000Official Seattle record ↗
Stabuilt LLCWA #STABUL*782LN

General contractor. Office listed in Lynnwood (North King / South Snohomish); 3 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
Mar 21, 2023
Recorded retaining wall construction scope
Permit 6930538-CN: wall alterations and site improvements; portal license STABUL*782LN matches Stabuilt LLC.
Active through Jun 15, 2028Full profile →
View 1 selected permit record

Construct alterations to retaining wall and site improvements adjacent to Single-Family Residence per plan.

6930538-CN · Completed · issued Mar 21, 2023 · Ravenna · $35,000Official Seattle record ↗
Build & Restore LLCWA #BUILDRL905MO

General contractor. Office listed in Edmonds (North King / South Snohomish); 2 primary-scope Seattle permits observed since 2021.

Selected permits
2
Latest match
Oct 29, 2024
Recorded retaining wall construction scope
Permits 7009819-CN and 7023193-CN: one linked two-lot wall and driveway scope; both show portal license BUILDRL905MO.
Active through Aug 1, 2028Full profile →
View 2 selected permit records

Construct new garage and site improvements accessory to existing one family dwelling per plan. Construct retaining walls and driveway across two adjacent lots per plan. Scope of work (both parcels) will be reviewed under 7009819-CN.

7009819-CN · Completed · issued Oct 29, 2024 · Ravenna · $30,797Official Seattle record ↗

Construct retaining walls and driveway across two adjacent lots per plan. Scope of work for both parcels reviewed under 7009819-CN.

7023193-CN · Completed · issued Oct 29, 2024 · Ravenna · $5,000Official Seattle record ↗
Dochnahl Construction Inc.WA #DOCHNC*241R9

General contractor. Office listed in Renton (South King); 2 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
Aug 2, 2024
Recorded retaining wall construction scope
Permit 7025778-CN: new walls with exterior stairs and a driveway; portal license DOCHNC*241R9 matches Dochnahl Construction Inc.
Active through Jul 3, 2028Full profile →
View 1 selected permit record

Construct new retaining walls for new exterior stairs and driveway for existing building per plan.

7025778-CN · Completed · issued Aug 2, 2024 · Ravenna · $5,000Official Seattle record ↗
Nussbaum Group Inc.WA #NUSSBGI914BZ

General contractor. Office listed in Redmond (Eastside); 2 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
Aug 25, 2021
Recorded retaining wall construction scope
Permit 6852041-CN: a broadly described retaining wall; portal license NUSSBGI914BZ matches Nussbaum Group Inc.
Active through Jan 12, 2027Full profile →
View 1 selected permit record
Van Zandt Design Build LLCWA #VANZAZD870PS

General contractor. Office listed in Seattle; 1 primary-scope Seattle permit observed since 2021.

Selected permits
1
Latest match
Apr 17, 2024
Recorded retaining wall construction scope
Permit 7012490-CN: retaining walls and associated site work; portal license VANZAZD870PS matches Van Zandt Design Build LLC. Permit status is Issued, not Completed.
Active through Oct 19, 2027Full profile →
View 1 selected permit record

Construct retaining walls and associated site work per plans. (Any work in the right of way requires a separate SDOT permit.)

7012490-CN · Issued · issued Apr 17, 2024 · Ravenna · $12,000Official Seattle record ↗

Questions raised by these local records

  • Are multiple permit numbers part of one project, and which master permit, approved plan set, revisions, and inspections control each parcel?
  • When walls meet driveways or stairs, are elevations, loads, drainage, guards or handrails, paving, and restoration coordinated in the same documents and price?
  • Does the actual address intersect a mapped ECA, liquefaction-prone area, ravine influence, or concentrated drainage path requiring site-specific review?
  • Who owns temporary support, wet-weather protection, grading quantities, unsuitable soil, utility conflicts, exported material, and erosion control?
  • Can each company explain its role in the cited project and provide a genuinely comparable reference without disclosing private homeowner information?

Guides supporting this local retaining wall construction page

Other Seattle retaining wall construction neighborhoods

Official sources used for this local page

  1. Permit 6930538-CN — contractor license STABUL*782LNSeattle Services Portal
  2. Permit 7009819-CN — contractor license BUILDRL905MOSeattle Services Portal
  3. Permit 7023193-CN — contractor license BUILDRL905MOSeattle Services Portal
  4. Permit 7025778-CN — contractor license DOCHNC*241R9Seattle Services Portal
  5. Permit 6852041-CN — contractor license NUSSBGI914BZSeattle Services Portal
  6. Permit 7012490-CN — contractor license VANZAZD870PSSeattle Services Portal
  7. Ravenna RavineSeattle Parks & Recreation
  8. Retaining Walls & RockeriesSeattle Department of Construction & Inspections
  9. Grading PermitSeattle Department of Construction & Inspections
  10. Research a Project, Permit, or PropertySeattle Department of Construction & Inspections
  11. Contractor License Data — GeneralWashington State Department of Labor & Industries