# Building permits at 603 3rd Ave W, Seattle, WA Three permits on record here. The newest, Jan 27: Replace exterior stairs north of existing apartment building. Within a quarter mile, the city has issued 3 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Jan 27, 2026 | Alteration or repair | Replace exterior stairs north of existing apartment building per plan. | $15,000 | [7117553-CN](https://nearbypermits.com/seattle/permit/7117553-CN/) | | Jul 31, 2025 | Demolition | Demolish existing accessory structure per STFI | $25,000 | [7096750-DM](https://nearbypermits.com/seattle/permit/7096750-DM/) | | Jul 31, 2025 | Demolition | Demolish existing accessory structure per STFI | $25,000 | [7096747-DM](https://nearbypermits.com/seattle/permit/7096747-DM/) | ## Within ¼ mi since May 1, 2026 3 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 2 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Jun 29, 2026 | [412 W Mercer St](https://nearbypermits.com/seattle/address/412-w-mercer-st/) | 370 ft W | Alteration or repair | Foundation repair at SW corner of existing multifamily building per plan. | $38,000 | [7123230-CN](https://nearbypermits.com/seattle/permit/7123230-CN/) | | May 7, 2026 | [412 W Mercer St](https://nearbypermits.com/seattle/address/412-w-mercer-st/) | 370 ft W | Alteration or repair | Construct alterations to existing multifamily building (exterior siding) per plan. | $19,361 | [7112198-CN](https://nearbypermits.com/seattle/permit/7112198-CN/) | ### Farther (1,000 ft to ¼ mi), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Aug 26, 2026 | [11 W Aloha St](https://nearbypermits.com/seattle/address/11-w-aloha-st/) | 0.23 mi NE | Roofing | The intent of the enclosure renewals is to perform work as mentioned in the scope below:Scope - Lower Roof- At the lower roof remove the existing low slope roof assembly to expose the existing structural deck.- Remove and replace existing parapet wall per plans.- Install new roof drains where denote | $370,000 | [7160029-RR](https://nearbypermits.com/seattle/permit/7160029-RR/) | ## More on this street Other addresses on 3rd Ave W with permits, nearest house number first: - [450 3rd Ave W](https://nearbypermits.com/seattle/address/450-3rd-ave-w/): newest permit Jun 23, 2025 - [1406 3rd Ave W](https://nearbypermits.com/seattle/address/1406-3rd-ave-w/): newest permit Apr 10, 2026 - [1416 3rd Ave W](https://nearbypermits.com/seattle/address/1416-3rd-ave-w/): newest permit Sep 2, 2026 - [1512 3rd Ave W](https://nearbypermits.com/seattle/address/1512-3rd-ave-w/): newest permit Sep 22, 2026 - [1621 3rd Ave W](https://nearbypermits.com/seattle/address/1621-3rd-ave-w/): newest permit Jun 24, 2025 - [1833 3rd Ave W](https://nearbypermits.com/seattle/address/1833-3rd-ave-w/): newest permit Dec 10, 2024 - [1914 3rd Ave W](https://nearbypermits.com/seattle/address/1914-3rd-ave-w/): newest permit Aug 11, 2025 - [1917 3rd Ave W](https://nearbypermits.com/seattle/address/1917-3rd-ave-w/): newest permit Jan 29, 2026 - [1924 3rd Ave W](https://nearbypermits.com/seattle/address/1924-3rd-ave-w/): newest permit May 18, 2026 - [2101 3rd Ave W](https://nearbypermits.com/seattle/address/2101-3rd-ave-w/): newest permit Oct 10, 2024 --- Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-07 13:45 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, all 3 permits at this address and 3 nearby: https://nearbypermits.com/seattle/address/603-3rd-ave-w/