# Building permits at 1803 18th Ave, Seattle, WA The biggest project within a quarter mile since May 1: a $2.1M alteration or repair at 201 16th Ave E, permitted Sep 10. One permit on record here. The newest, Sep 8: Multi family building re roof project. Within a quarter mile, the city has issued 11 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Sep 8, 2026 | Roofing | Multi family building re roof project. 47 squares to replace with comp shingles. | $42,500 | [7161675-RR](https://nearbypermits.com/seattle/permit/7161675-RR/) | ## Within ¼ mi since May 1, 2026 11 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 5 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Aug 12, 2026 | [1715 E Madison St](https://nearbypermits.com/seattle/address/1715-e-madison-st/) | 790 ft S | Alteration or repair | Construct minor alterations to telecommunications facility on existing tower per plan | $25,000 | [7153529-CN](https://nearbypermits.com/seattle/permit/7153529-CN/) | | Jul 13, 2026 | [1818 E Madison St](https://nearbypermits.com/seattle/address/1818-e-madison-st/) | 500 ft SE | Alteration or repair | Interior repairs to multifamily building Subject to field inspection (STFI) | $22,381 | [7152122-CN](https://nearbypermits.com/seattle/permit/7152122-CN/) | | Jul 8, 2026 | [201 17th Ave E](https://nearbypermits.com/seattle/address/201-17th-ave-e/) | 820 ft N | Roofing | Scope of Work: Remove existing torch-down roofing material down to the existing substrate. We will also remove any rotten or damaged plywood. Install a new fully adhered PVC roofing membrane system. No structural modifications framing alterations or structural changes will be made to the building | $158,210 | [7152034-RR](https://nearbypermits.com/seattle/permit/7152034-RR/) | | Jun 2, 2026 | [1715 E Madison St](https://nearbypermits.com/seattle/address/1715-e-madison-st/) | 790 ft S | Alteration or repair | Construct alterations to telecommunications facility (AT&T) on site of existing commercial building per plan. | $25,000 | [7129991-CN](https://nearbypermits.com/seattle/permit/7129991-CN/) | | May 22, 2026 | [1841 16th Ave](https://nearbypermits.com/seattle/address/1841-16th-ave/) | 630 ft W | Sign | Alterations to remove exit signs from garage of institutional building per plan. | $100 | [7140379-CN](https://nearbypermits.com/seattle/permit/7140379-CN/) | ### Farther (1,000 ft to ¼ mi), 6 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 10, 2026 | [201 16th Ave E](https://nearbypermits.com/seattle/address/201-16th-ave-e/) | 0.22 mi NW | Alteration or repair | Construct alterations to existing hospital building (Kaiser Main Bldg.) at level 1 per plan. Mechanical included. | $2,120,000 | [7132347-CN](https://nearbypermits.com/seattle/permit/7132347-CN/) | | Aug 21, 2026 | [201 16th Ave E](https://nearbypermits.com/seattle/address/201-16th-ave-e/) | 0.22 mi NW | Alteration or repair | Construct alterations to convert Anesthesia Workroom into Clean Supply Storage room within existing institution (Kaiser Permanente Hospital) per plan. Mechanical work included this permit. | $461,000 | [7147546-CN](https://nearbypermits.com/seattle/permit/7147546-CN/) | | Aug 12, 2026 | [118 A 21st Ave E](https://nearbypermits.com/seattle/address/118-a-21st-ave-e/) | 0.24 mi NE | Fence, wall or deck | Replace two existing deck support posts with new concrete footings and new pressure-treated support posts subject to field inspection STFI. | $7,000 | [7157597-CN](https://nearbypermits.com/seattle/permit/7157597-CN/) | | Aug 5, 2026 | [201 16th Ave E](https://nearbypermits.com/seattle/address/201-16th-ave-e/) | 0.22 mi NW | Alteration or repair | Construct alterations at level 1 of existing medical facility (Kaiser Permanente) for dialysis workroom (room C107) subject to field inspection (STFI) | $356,200 | [7142117-CN](https://nearbypermits.com/seattle/permit/7142117-CN/) | | Jul 22, 2026 | [1600 19th Ave](https://nearbypermits.com/seattle/address/1600-19th-ave/) | 0.19 mi SE | Demolition | Establish as vacant per the land use code. Demolish residential structure per plans | Not listed | [7112374-DM](https://nearbypermits.com/seattle/permit/7112374-DM/) | | Jun 2, 2026 | [318 18th Ave E](https://nearbypermits.com/seattle/address/318-18th-ave-e/) | 0.23 mi N | Alteration or repair | Construct alterations to existing one-family dwelling subject-to-field inspection (STFI). | $70,000 | [7145744-CN](https://nearbypermits.com/seattle/permit/7145744-CN/) | ## More on this street Other addresses on 18th Ave with permits, nearest house number first: - [902 18th Ave](https://nearbypermits.com/seattle/address/902-18th-ave/): newest permit Apr 17, 2026 - [820 18th Ave](https://nearbypermits.com/seattle/address/820-18th-ave/): newest permit Jun 4, 2025 - [800 18th Ave](https://nearbypermits.com/seattle/address/800-18th-ave/): newest permit Jun 23, 2026 - [313 18th Ave](https://nearbypermits.com/seattle/address/313-18th-ave/): newest permit Dec 14, 2025 - [161 18th Ave](https://nearbypermits.com/seattle/address/161-18th-ave/): newest permit Mar 5, 2025 --- Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-07 01:46 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, the one permit at this address and 11 nearby: https://nearbypermits.com/seattle/address/1803-18th-ave/