Seattle Building Permits & Property Data

9,467 historical permit records through 2026-10-08 · 16,354 code violations · newest 2026-10-14 · Seattle, Washington.

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9,467 building-permit records on file for Seattle, WA through 2026-10-08. 16,354 code violations in the same area, newest violation date 2026-10-14.

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Newest permit date:

9,467
Indexed Permits
—
Contractor count unavailable
16,354
Code Violations
—
Property Owners · count unavailable
2026-10-11
Last source check
Source date: 2026-10-08 · newer records are not currently available

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Published permit & code records

Permit data through 2026-10-08

9,467 permits sorted by date

⇄ Swipe or scroll to see address & contractor

Date Type Value Address Details Contractor / Status Save
2026-08-28 Electrical — 2122 9TH AVE W 6 units of townhomes [8.28.26 VR, West Units Permit 7158318-EL /// East Units Pe… 6 HVAC systems ALFA ELECTRIC INC
2026-08-28 Electrical — 10012 8TH AVE NW Adding four branch circuits for lighting and receptacles off a 100 amp sub panel… 100A —
2026-08-28 Electrical — 4226 50TH AVE S UFER —
2026-08-28 Electrical — 2142 NW 95TH ST install temp power pole to use during construction. Greentek Electric LLC
2026-08-28 Electrical — 615 2ND AVE Install Misc Power and Lighting for TI Olsen Electric Inc
2026-08-28 Electrical — 2400 PERKINS LN W Temporary power pole installation and removal: 50A/240V service with (2) 20A/120… 50A 240V New installation Seatown Electric, Plumbing, Heating & Air dba Seatown Services
2026-08-28 Electrical — 11326D 25TH AVE NE Install tesla wall connector 240v, dedicated circuit 240V New installation —
2026-08-28 Electrical — 7722 22ND AVE NE relocated bathroom gfci to left of the sink, added dedicated circuit for bidet, … —
2026-08-28 HVAC
Source type: Trade
 $8,200 5435 B CALIFORNIA AVE SW Installation of mini split system. Subject to Field Inspection - STFI mini-split New installation HVAC installation Comfy Air LLC
2026-08-28 HVAC
Source type: Trade
 $8,200 5435 C CALIFORNIA AVE SW Installation of mini split system. Subject to Field Inspection - STFI mini-split New installation HVAC installation Comfy Air LLC
2026-08-28 HVAC
Source type: Trade
 $8,200 5435 F CALIFORNIA AVE SW Installation of mini split system. Subject to Field Inspection - STFI mini-split New installation HVAC installation Comfy Air LLC
2026-08-28 General Construction
Source type: Trade
 $1,000 300 NE NORTHGATE WAY Cellular device will be installed in the telecommunications room and new phone w… ×4 Kings III of America, LLC
2026-08-28 General Construction
Source type: Trade
 $15,998 1100 5TH AVE Replace obsolete governor and ropes - Car 1 EQP-SI-05221 / EQP-CY-04434 (2021 SB… MITSUBISHI ELECTRIC US, INC
2026-08-28 General Construction
Source type: Trade
 $15,998 1100 5TH AVE Replace obsolete governor and ropes - Car 2 EQP-SI-05221 / EQP-CY-04435 (2021 SB… MITSUBISHI ELECTRIC US, INC
2026-08-28 Plumbing
Source type: Trade
 $3,622 2130 7TH AVE Modify the existing fire sprinkler system to accommodate the new walls and ceili… sprinkler New installation COLUMBIA FIRE
2026-08-28 Fire Protection
Source type: Trade
 $2,000 4201 15TH AVE NE Add and relocate 2 heads for new tenant wall modification. sprinkler FIRE SYSTEMS WEST
2026-08-28 HVAC
Source type: Trade
 $12,000 1113 29TH AVE S Heat Pump Install furnace, heat pump New installation HVAC installation ×2 —
2026-08-28 General Construction
Source type: Trade
 $1,000 6525 CALIFORNIA AVE SW Cellular device will be installed in the telecommunications room and new phone w… Kings III of America, LLC
2026-08-28 HVAC
Source type: Trade
 $7,000 9351 48TH AVE S I will be doing ceiling caseates furnace —
2026-08-28 HVAC
Source type: Trade
 $4,500 10 A E LOUISA ST 4 zone heat pump, 3 bathrooms , one 4" dryer , 6" range , ERV heat pump Consistent Heating and Cooling
2026-08-28 Interior Renovation
Source type: Trade
 $1,188 6940 M L KING JR WAY S Install new flooring in elevator A EQP-SI-09348 / EQP-CY-08691 (2021 SBC = 2023 … MITSUBISHI ELECTRIC US, INC
2026-08-28 Electrical — 3908 SW OTHELLO ST Installing a 40amp sauna circuit and disconnect 40A Huckleberry Electric
2026-08-28 Electrical — 1744 S DAWSON ST 240v 30 amp and GFCI 30A 240V Evergreen Home Heating & Energy
2026-08-28 Electrical — 7949 28TH AVE SW 80 for 80 furnace swap replacement SOUTH WEST PLUMBING & WATERHEATERS, INC.
2026-08-28 Electrical $60,000 2120 9TH AVE W 6 units of townhomes [8.28.26 VR, West Units Permit 7158318-EL /// East Units Pe… 6 HVAC systems ALFA ELECTRIC INC
2026-08-28 Interior Renovation
Source type: Trade
 $1,188 6940 M L KING JR WAY S Install new flooring in elevator B EQP-SI-09348 / EQP-CY-08687 (2021 SBC = 2023 … MITSUBISHI ELECTRIC US, INC
2026-08-28 New Construction
Source type: Residential
 $490,442 2642 S MORGAN ST Construct MIDDLE SFD per plan [Allow additional single family dwelling unit with… residential —
2026-08-28 New Construction
Source type: Residential
 $497,990 6717 42ND AVE S Construct South townhouse (units 24-25) per plan. (Establish use as rowhouse per… residential New construction —
2026-08-28 Electrical — 7720 33RD AVE NE 200-200AMP Panel replacement. Replace the three kitchen outlets. Replace 3 dimme… 200A replacement Greenwood Heating & Home Services
2026-08-28 Electrical — 10801 12TH AVE NE Installation of Low-Voltage Burglar Alarm System Vivint LLC
2026-08-28 Electrical — 4710 36TH AVE NE Heat pump Fischer Services
2026-08-28 Electrical — 7051 ALONZO AVE NW Swap Energy Storage Systems- From PW2 to PW3, Along with Gateway 3 Upgrades replacement —
2026-08-28 Electrical — 1628 10TH AVE W We will be running a circuit for the heatpump, adding a service receptacle in th… —
2026-08-28 Electrical — 500 WALL ST Replace 30 lights in hallway/common area on floor 9 replacement McCarthy Electric and Technologies LLC
2026-08-28 Electrical — 10237 57TH AVE S building a new home, need temp power New installation New construction —
2026-08-28 Electrical — 4102 41ST AVE SW running 20 amp fridge circuit 20A Spark Pro Electric LLC
2026-08-28 Electrical — 8753 13TH AVE NW Provide & install temp power pole Kot Electric LLC
2026-08-28 Electrical — 938 M L KING JR WAY Homeowner got a new sauna + heater and we replaced. —
2026-08-28 Electrical — 412 W MERCER ST Replacing (13) existing 100A Zinsco sub-panels (12 units and 1 house panel) 100A ECO ELECTRIC & PLUMBING
2026-08-28 Electrical — 7314 AURORA AVE N Removing and Replacing an existing slurpee machine and its associated remote con… Coolsys
2026-08-28 HVAC
Source type: Trade
 $4,500 10 C E LOUISA ST 4 zone heat pump, 3 bathrooms , one 4" dryer , 6" range , ERV heat pump Consistent Heating and Cooling
2026-08-28 HVAC
Source type: Trade
 $4,500 10 B E LOUISA ST 4 zone heat pump, 3 bathrooms , one 4" dryer , 6" range , ERV heat pump Consistent Heating and Cooling
2026-08-28 HVAC
Source type: Trade
 $8,200 5435 D CALIFORNIA AVE SW Installation of mini split system. Subject to Field Inspection - STFI mini-split New installation HVAC installation Comfy Air LLC
2026-08-28 HVAC
Source type: Trade
 $35,000 363 MERCER ST Addition of (2) VAV units, per plan. —
2026-08-28 HVAC
Source type: Trade
 $28,873 2300 S MASSACHUSETTS ST Install mini split in elevator machine room, per plan mini-split New installation HVAC installation —
2026-08-28 Electrical — 3915 S BRANDON ST replacing service for duplex - it has a 200amp service overall, replacing with 2… 200A 22 circuits As You Wish Electric
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Historical Seattle permit records

The records in the table are available through 2026-10-08. They are useful for historical research; newer records are not currently available in this feed.

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