# Building permits at 3731 E Prospect St, Seattle, WA

Seven permits on record here. The newest, Oct 1: Construct additions and alterations to existing one family dwelling. Within a quarter mile, the city has issued 4 more permits since May 1.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Oct 1, 2026 | Alteration or repair | Construct additions and alterations to existing one family dwelling per plan. | $600,000 | [7154178-CN](https://nearbypermits.com/seattle/permit/7154178-CN/) |
| Oct 14, 2019 | Addition | Construct exterior alterations and addition to single-family residence per plan. | $200,000 | [6745009-CN](https://nearbypermits.com/seattle/permit/6745009-CN/) |
| Dec 20, 2018 | Alteration or repair | Alterations to extend trellis to a single-family residence subject to field inspection (STFI). | $6,000 | [6704931-CN](https://nearbypermits.com/seattle/permit/6704931-CN/) |
| Jul 31, 2014 | Alteration or repair | Remove and rebuild two existing chimneys subject to field inspection (STFI) per inspector Dave Mezen. | $20,000 | [6426564-CN](https://nearbypermits.com/seattle/permit/6426564-CN/) |
| Nov 8, 2013 | Fence, wall or deck | Construct additions and alterations to existing single family residence create new accessory dwelling unit and construct site structures/per plan. | $297,433 | [6368044-CN](https://nearbypermits.com/seattle/permit/6368044-CN/) |
| Aug 14, 2013 | Pool or spa | Demolish detached garage and swimming pool and construct retaining walls for single family residence per plan. | $50,000 | [6353183-CN](https://nearbypermits.com/seattle/permit/6353183-CN/) |
| Mar 13, 2013 | Alteration or repair | Construct alterations to existing single fmaily residence subject to field inspection (STFI)/per floor plans. | $50,000 | [6353486-CN](https://nearbypermits.com/seattle/permit/6353486-CN/) |

## Within ¼ mi since May 1, 2026

4 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 |
|---|---|---|---|---|---|---|
| Aug 24, 2026 | [900 39th Ave E](https://nearbypermits.com/seattle/address/900-39th-ave-e/) | 370 ft SE | Addition | Construct pool/spa/roof deck addition including shoring and site work - accessory to a single-family residence per plans | $333,570 | [6859813-CN](https://nearbypermits.com/seattle/permit/6859813-CN/) |
| Jun 16, 2026 | [922 Mcgilvra Blvd E](https://nearbypermits.com/seattle/address/922-mcgilvra-blvd-e/) | 700 ft E | Grading | Grading of tennis courts (Seattle Tennis Club) in the north part of the property for existing athletic facility per plan. | $108,000 | [7115035-GR](https://nearbypermits.com/seattle/permit/7115035-GR/) |

### Farther (1,000 ft to ¼ mi), 2 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Aug 6, 2026 | [1038 34th Ave E](https://nearbypermits.com/seattle/address/1038-34th-ave-e/) | 0.19 mi W | Alteration or repair | Construct additions and alterations to existing one-family dwelling per plan | $100,000 | [7110550-CN](https://nearbypermits.com/seattle/permit/7110550-CN/) |
| Jul 24, 2026 | [1038 34th Ave E](https://nearbypermits.com/seattle/address/1038-34th-ave-e/) | 0.19 mi W | Alteration or repair | Additions and alterations to existing dwelling unit Subject To Field Inspection (STFI) | $75,000 | [7154685-CN](https://nearbypermits.com/seattle/permit/7154685-CN/) |

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Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr). Checked 2026-10-05 15:36 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map, all 7 permits at this address and 4 nearby: https://nearbypermits.com/seattle/address/3731-e-prospect-st/