Retaining wall construction in Leschi

Two active companies, three completed records with different scopes

A new wall with a parking area, a wall with site improvements, and a retaining-structures project describe different construction contexts. This Leschi comparison keeps those differences visible rather than presenting every permit as the same wall system. All three selected records were Completed at the October 11, 2026 review; their detailed Seattle Services Portal contractor licenses exactly match currently active Washington L&I registrations.

True Scapes LLC appears in permits 6845348-CN and 6806003-CN. The first describes constructing a new retaining wall and establishing parking accessory to an existing single-family residence; the second describes a retaining wall and associated site improvements. Design by Oz LLC appears in 6942478-CN, which explicitly describes constructing site work and retaining structures. That wording supports the broad construction category without identifying a material, height, reinforcement system, or division of work among trades.

The records were found by checking wall, rockery, slope and shoring descriptions inside the City's Leschi neighborhood polygon. The search returned 17 permits issued since 2021. Owner/Lessee records, unconfirmed contractor identities, a historical rockery license whose current dataset status is Re-licensed, and unrelated or adverse scopes were not used to fill this construction comparison. The open-data contractor-name fields are blank; the separate Portal license checks provide the reproducible identity link.

Neighborhood-specific context

Coordinate parking, site improvements and retaining structures in Leschi

The site's dated neighborhood aggregate shows 17.27% mapped steep-slope overlap, 39.86% potential-slide-area overlap, 1.21% known-slide-affected-property overlap and 85 historical slide-event points. These are neighborhood screening values rather than findings about any selected permit location, a proposed wall, or a particular property. Use the official layers and the responsible agency's project review to resolve the actual site context.

For a wall associated with parking, the comparison should identify the relationship between the wall, parking geometry, finished grades and any loads the designer needs to consider. For wall-and-site-improvement work, identify which access, paving, landscaping, drainage, restoration and inspection deliverables are included. The brief public descriptions do not establish which of those details applied to these past projects.

A description naming retaining structures leaves additional questions about the selected system and the contractor's role. Ask for the controlling drawings, dimensions, ground assumptions, temporary excavation support, drainage route and permanent outlet, survey limits, neighboring-property coordination, equipment access and closeout records. Explain which assumptions are unresolved before asking contractors to price the same scope.

The broader Leschi hub keeps other work separate: Greenway's 7142463-CN is a Completed failed-wall replacement; Groundworks' 7067831-CN is Issued foundation underpinning; the earlier alteration, removal, Expired repair and Withdrawn repair records answer different questions. They remain separate from the three Completed construction records here.

Open the complete Leschi geology and neighborhood evidence →

Companies in the selected Leschi retaining wall construction records

The selected comparison contains three Completed records under two currently active companies. The permit status, exact contractor license and short scope are separate checks; together they identify research examples rather than a recommendation or proof that each contractor performed every trade.

Questions raised by these local records

• What retaining structure, dimensions and design documents actually match the proposed project rather than the broad wording of a past permit?
• If parking is involved, how are finished grades, vehicle loads, edge protection, drainage and restoration coordinated in the design and scope?
• Which excavation, temporary support, access, hauling, utility and neighboring-property assumptions are established before pricing?
• Where does collected water discharge, who confirms the route, and which drawings and inspections document the connection?
• Which part of the cited project did the contractor perform, and can it provide a reference with comparable scope and site conditions?

Guides supporting this local retaining wall construction page

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