Concrete, retaining wall, and drainage contractor in Kenmore, WA

Kenmore’s right-of-way checklist places sidewalk, driveway, and curb work under a Type A permit, and its code puts sidewalk maintenance on the abutting owner. The stormwater lines follow the 2021 King County manual the city adopted in 2022. Wall, patio, and grading questions stay open until the city answers for your address.

Kenmore permit lines and open points

Kenmore’s code puts the burden and expense of sidewalk maintenance on the abutting owner. A sidewalk rebuild or repair needs a Type A right-of-way permit under KMC 12.70.040, and plans must be modified when the city engineer finds the cost would exceed half the abutting property valuation, exclusive of improvements.

Stormwater follows the 2021 King County Surface Water Design Manual, adopted by Ordinance 22-0551 effective June 30, 2022. Item 8 of the city addendum sends 500 to 1,999 square feet of new, replaced, or combined impervious surface through Simplified Drainage Review. Item 7 requires drainage review where new plus replaced impervious surface totals 5,000 square feet or more and the proposed improvements exceed half the assessed value of existing site improvements.

Two points stay open. The city’s building codes page says the 2021 codes were adopted February 26, 2024, but the code text still lists 2018 editions, so we confirm the edition first. The sources read show no Kenmore wall-height rule and no cut or fill limit, so both questions go to the city before design.

Nearby, we also build in Bothell, Lake Forest Park, Woodinville, and Shoreline, and we serve the rest of western Washington.

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