23 ZIP codes with 100 or more permits on homes in the City of Seattle, October 2023 through September 2026. 98115 is the busiest with 6,321 permits (11% of the 57,209 in Seattle). Each permit is counted at its property's ZIP code, for the 10 kinds of home work we track.
Busiest first. Top trade is the trade with the most permits in that ZIP code; contractors are distinct business names with at least one permit there. A ZIP code opens its page: permits by trade, the most active firms and usual filed values.
| ZIP code | Permits | Share | Top trade | Contractors |
|---|---|---|---|---|
| 98115 | 6,321 | 11% | Furnace & Heating (2,107) | 551 |
| 98103 | 4,970 | 9% | Furnace & Heating (1,651) | 467 |
| 98117 | 4,968 | 9% | Furnace & Heating (1,674) | 472 |
| 98118 | 3,818 | 7% | Furnace & Heating (1,236) | 422 |
| 98125 | 3,516 | 6% | Furnace & Heating (1,151) | 414 |
| 98112 | 2,973 | 5% | Furnace & Heating (945) | 395 |
| 98199 | 2,830 | 5% | Furnace & Heating (951) | 371 |
| 98116 | 2,818 | 5% | Furnace & Heating (936) | 370 |
| 98105 | 2,747 | 5% | Furnace & Heating (921) | 391 |
| 98144 | 2,363 | 4% | Furnace & Heating (744) | 350 |
| 98122 | 2,194 | 4% | Furnace & Heating (648) | 355 |
| 98136 | 2,162 | 4% | Furnace & Heating (736) | 305 |
| 98126 | 2,144 | 4% | Furnace & Heating (689) | 319 |
| 98107 | 2,046 | 4% | Furnace & Heating (693) | 274 |
| 98106 | 1,797 | 3% | Furnace & Heating (552) | 296 |
| 98133 | 1,706 | 3% | Furnace & Heating (556) | 302 |
| 98119 | 1,654 | 3% | Furnace & Heating (523) | 317 |
| 98108 | 1,571 | 3% | Furnace & Heating (506) | 259 |
| 98177 | 1,334 | 2% | Furnace & Heating (463) | 252 |
| 98109 | 980 | 2% | Furnace & Heating (314) | 225 |
| 98102 | 948 | 2% | Electrical (269) | 216 |
| 98146 | 594 | 1% | Furnace & Heating (199) | 163 |
| 98178 | 573 | 1% | Furnace & Heating (188) | 157 |
Fewer than 100 permits, so no page: 98101 (35), 98121 (33), 98155 (22), 98104 (21), 98134 (6), 98168 (5), 98188 (2), 98195 (2), 98164 (1).
Source: City of Seattle (SDCI) building, trade and electrical permits on single-family and duplex homes (the city's open-data exports). The window is October 2023 through September 2026.
Counted: permits on homes for the kinds of work we track (furnace & heating, heat pump & AC, electrical, EV charger, solar & battery, alarm & low-voltage, roofing, boiler, stairlift & home elevator, fire sprinkler) where the record names a contractor, placed by the ZIP code of the permit's address (or its parcel's). The pages with a ZIP code cover 57,027 of the 57,209 permits; 55 had no usable ZIP code.
Not counted: commercial work, trades we don't read, and owner-pulled permits. A ZIP code does not follow city or county lines; these count only permits in the City of Seattle.