# Building permits at 8440 47th Ave S, Seattle, WA New buildings permitted at three addresses within 550 ft since May 1, the largest $237,042. Two permits on record here. The newest, Aug 26: Construct additions and alterations to existing one-family dwelling (Northwest). Within a quarter mile, the city has issued 5 more permits since May 1. The nearest permit for a new building is 330 ft away. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Aug 26, 2026 | Addition | Construct additions and alterations to existing one-family dwelling (Northwest) per plan. (Establish use as housing for one detached dwelling unit per land use code. Existing detached dwelling to remain. Construct 1 new one-family dwelling and additions & alterations to existing one family dwelling | $44,592 | [7149714-CN](https://nearbypermits.com/seattle/permit/7149714-CN/) | | Jan 6, 2016 | Alteration or repair | Construct alterations to existing single family residence. | $30,000 | [6511724-CN](https://nearbypermits.com/seattle/permit/6511724-CN/) | ## Within ¼ mi since May 1, 2026 5 permits in the circle. From our copy of the city's data (last 24 months). ### Next door (under 250 ft), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 2, 2026 | [8438 47th Ave S](https://nearbypermits.com/seattle/address/8438-47th-ave-s/) | 40 ft SE | Addition | Construct new one-family dwelling (Southeast) per plan. (Establish use as housing for one detached dwelling unit per land use code. Existing detached dwelling to remain. Construct 1 new one-family dwelling and additions & alterations to existing one family dwelling per plan. Review and processing fo | $213,302 | [7131979-CN](https://nearbypermits.com/seattle/permit/7131979-CN/) | ### This block (250 to 1,000 ft), 4 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Aug 5, 2026 | [8420 46th Ave S](https://nearbypermits.com/seattle/address/8420-46th-ave-s/) | 390 ft NW | Alteration or repair | Construct alterations to east side of existing one family residence subject to field inspection (STFI). | $750 | [7150347-CN](https://nearbypermits.com/seattle/permit/7150347-CN/) | | Aug 5, 2026 | [8424 46th Ave S](https://nearbypermits.com/seattle/address/8424-46th-ave-s/) | 330 ft NW | New building | Construct east DADU#2 per plan. Establish use as housing for one detached dwelling unit. Construct (2) new one-family dwellings per plan. Existing SFR to remain. Reviews and processing for two records under 7112377-CN) | $237,042 | [7122903-CN](https://nearbypermits.com/seattle/permit/7122903-CN/) | | Aug 5, 2026 | [8422 46th Ave S](https://nearbypermits.com/seattle/address/8422-46th-ave-s/) | 360 ft NW | New building | Allow housing for two detached dwelling units. Construct (2) new one-family dwellings per plan. Existing SFR to remain. Reviews and processing for two records under 7112377-CN) | $237,042 | [7112377-CN](https://nearbypermits.com/seattle/permit/7112377-CN/) | | Jul 20, 2026 | [8449 46th Ave S](https://nearbypermits.com/seattle/address/8449-46th-ave-s/) | 510 ft W | New building | Allow one new detached accessory dwelling unit per land use code. Construct a new one-family dwelling per plan. Existing single-family residence to remain. | $204,547 | [7058576-CN](https://nearbypermits.com/seattle/permit/7058576-CN/) | ## Zoning requests nearby There are no zoning requests on file within ¼ mi. Seattle's feed was last read Oct 10. ## More on this street Other addresses on 47th Ave S with permits, nearest house number first: - [8438 47th Ave S](https://nearbypermits.com/seattle/address/8438-47th-ave-s/): newest permit Sep 2, 2026 - [8420 47th Ave S](https://nearbypermits.com/seattle/address/8420-47th-ave-s/): newest permit Nov 2, 2024 - [7952 47th Ave S](https://nearbypermits.com/seattle/address/7952-47th-ave-s/): newest permit Jul 15, 2025 - [6201 47th Ave S](https://nearbypermits.com/seattle/address/6201-47th-ave-s/): newest permit Sep 24, 2026 - [5609 47th Ave S](https://nearbypermits.com/seattle/address/5609-47th-ave-s/): newest permit Apr 29, 2026 - [4808 47th Ave S](https://nearbypermits.com/seattle/address/4808-47th-ave-s/): newest permit Jan 20, 2026 - [4610 47th Ave S](https://nearbypermits.com/seattle/address/4610-47th-ave-s/): newest permit Oct 27, 2025 - [4203 47th Ave S](https://nearbypermits.com/seattle/address/4203-47th-ave-s/): newest permit Mar 30, 2026 - [4115 47th Ave S](https://nearbypermits.com/seattle/address/4115-47th-ave-s/): newest permit Jul 1, 2026 - [4000 47th Ave S](https://nearbypermits.com/seattle/address/4000-47th-ave-s/): newest permit Dec 2, 2024 --- Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-10 09:27 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Zoning requests come from the Seattle land use permits (https://cos-data.seattle.gov/d/ht3q-kdvx), City of Seattle. We read it Oct 10, 08:48 UTC. Map, both permits at this address and 5 nearby: https://nearbypermits.com/seattle/address/8440-47th-ave-s/