Seattle permit evidence
Seattle underpinning, helical-anchor, push-pier, and pin-pile permit evidence connected to foundations and retaining structures.
Underpinning transfers or supplements support beneath an existing foundation or retaining structure. Helical elements, push piers, pin piles, anchors, and other systems behave differently and depend on design loads, installation criteria, access, existing construction, utilities, and verified field response. Product names alone do not define a complete repair.
Matches require explicit underpinning, pier, pile-foundation repair, or helical-anchor language in a selected permit. Some records combine foundation and retaining-wall work; the official link is included so readers can see the stated scope instead of assuming every project was the same system.
Underpinning is engineered structural work; confirm design, inspection, and field-verification requirements in the approved permit.
Ask how installation reactions, vibration, utilities, and temporary support are addressed for the existing building.
A permit exemption is not an engineering conclusion, and a mapped environmental layer is not a property assessment. Confirm the current path with SDCI for the actual address, dimensions, loads, grading, and proposed construction.
Calculated from selected records
Among records with a positive declared cost, the observed range is $25,000 to $54,300. These are permit declarations, not bids, invoices, final costs, or price guidance.
The company list is evidence, not endorsement. Each excerpt below is the exact public description used for the match; open the official record to inspect its context.
Construct repairs to existing retaining wall with helical anchors per plan. Review and process 7018832-CN under this permit.
Open official Seattle record ↗Construct alterations to install push piers helical anchors and tie-rods to support existing retaining wall and foundation of single-family residence per plan.
Open official Seattle record ↗Construct site retaining wall & foundation repairs to existing one-family dwelling per plan
Open official Seattle record ↗Construct retaining walls and pin pile foundation repair to existing one-family dwelling per plan
Open official Seattle record ↗Comparable words in a permit do not make two properties comparable. Ask bidders to define exclusions and connect their proposed method to the site investigation and approved documents.
Re-open the contractor’s current Washington registration, bond, and insurance record before a decision. Confirm that the legal entity and license on the contract match the entity whose evidence you reviewed here.
Project intake
This independent intake is not routed to a particular profile company. Sending it does not create an endorsement or contractor relationship.
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