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
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9,467 permits sorted by date

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Date Type Value Address Details Contractor / Status Save
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
 $1,000 300 NE NORTHGATE WAY 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
 $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 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 B CALIFORNIA AVE SW Installation of mini split system. Subject to Field Inspection - STFI mini-split New installation HVAC installation Comfy Air LLC
2026-08-27 HVAC
Source type: Trade
 $6,000 2437 E INTERLAKEN BLVD Install Trane Furnace furnace New installation HVAC installation BALLARD NATURAL GAS
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2026-08-27 HVAC
Source type: Trade
 $6,000 4709 1ST AVE NW Furnace installation furnace New installation HVAC installation BALLARD NATURAL GAS
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2026-08-27 HVAC
Source type: Trade
 $10,532 7019 CALIFORNIA AVE SW Boiler change out replacement HVAC changeout All Climate Inc
2026-08-27 Electrical $7,118 4704 CALIFORNIA AVE SW Add/relocate notification fire alarm devices for Dave's Hot Chicken, T.I fire alarm New installation Patriot Fire Protection Inc
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2026-08-27 Electrical — 4106 NE 60TH ST add circuit for heat pump Larrys Electric Inc
2026-08-27 Electrical — 4732 BROOKLYN AVE NE Installing (1) quad receptacles fed from local circuit. Installing (1) light dim… Holaday Parks Inc
2026-08-27 Electrical — 9717 DAYTON AVE N Run dedicated circuit to HVAC BALLARD NATURAL GAS
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2026-08-27 Electrical — 3722 SW GRAYSON ST Adding circuit for new heat pump, tstat connection Lifetime Heating
📞 (•••) •••-••••
2026-08-27 HVAC
Source type: Trade
 $44,400 4119 NE 60TH ST Replace (6) indoor heads and (2) ductless heat pumps replacement HVAC replacement ×2 Glendale Heating and Air…
2026-08-27 HVAC
Source type: Trade
 $50,000 4520 21ST AVE NE install Viessmann CU3A 199 boiler. Building less than 20,000 square feet - decar… New installation HVAC installation Custom Radiant
2026-08-27 HVAC
Source type: Trade
 $8,700 11218 35TH AVE SW 3 TON HEAT PUMP CONDENSER CHANGEOUT IN THE BACKYARD INCLUDING AN INDOOR COIL AND… 3 tons AC, furnace, heat pump replacement HVAC changeout ×2 BLUE FLAME HEATING AND AIR…
2026-08-27 HVAC
Source type: Trade
 $5,000 3522 29TH AVE W REPLACE GAS FURNACE furnace replacement HVAC replacement Washington Energy Services
2026-08-27 HVAC
Source type: Trade
 $6,500 13739 36TH AVE NE Install one heat pump. heat pump New installation HVAC installation Go Green Heating & AC LLC
2026-08-27 HVAC
Source type: Trade
 $8,500 4721 38TH AVE NE FURNACE REPLACEMENT furnace replacement HVAC replacement Seatown Electric, Plumbing, Heating & Air dba Seatown Services
2026-08-27 HVAC
Source type: Trade
 $2,500 1191 2ND AVE replace like for like bladder tank like for like replacement HVAC changeout Aqua Tech Pumps llc
2026-08-27 Electrical — 3014 12TH AVE S Wire new single family residence residential New installation New construction PROFICIENT ELECTRIC
2026-08-27 Electrical — 509 OLIVE WAY Adding (3) SD500 devices to area for protection. Cosco Fire Protection
2026-08-27 Electrical — 3608A COURTLAND PL S ufer ground installation for new construction under permit#6882351 —
2026-08-27 Electrical — 9417 CALIFORNIA AVE SW ufer added in foundation of addition —
2026-08-27 Electrical — 4540 17TH AVE NE Added (1) 20-amp circuit breaker for fireplace receptacle. Chad Saxton Electric LLC dba Whidbey Island Electric
2026-08-27 Electrical — 1418 22ND AVE Disconnect and tstat install Gene Johnson
2026-08-27 HVAC
Source type: Trade
 $1,500 8055 CORLISS AVE N Heat pump installation heat pump New installation HVAC installation —
2026-08-27 HVAC
Source type: Trade
 — 8823 5TH AVE S Heatpump install furnace, heat pump New installation HVAC installation HOME CONSTRUCTION SOLUTION LLC
2026-08-27 HVAC
Source type: Trade
 $8,245 1201 SUMMIT AVE For the purpose of elevator modernization: Refrigeration permit for 7160065-ME 16D LLC
2026-08-27 HVAC
Source type: Trade
 — 1415 2nd AVE Install 2 Zone  ductless to unit # 02 New installation HVAC installation —
2026-08-27 HVAC
Source type: Trade
 $3,000 9223 B MARY AVE NW installing new mini split heat pump heat pump, mini-split New installation HVAC installation Bykal Air
2026-08-27 HVAC
Source type: Trade
 $3,000 9225 A MARY AVE NW installing new mini split heat pump heat pump, mini-split New installation HVAC installation Bykal Air
2026-08-27 HVAC
Source type: Trade
 $3,000 9227 MARY AVE NW installing new mini split heat pump heat pump, mini-split New installation HVAC installation Bykal Air
2026-08-27 HVAC
Source type: Trade
 $3,000 9229 MARY AVE NW installing new mini split heat pump heat pump, mini-split New installation HVAC installation Bykal Air
2026-08-27 HVAC
Source type: Trade
 $16,000 9223 B MARY AVE NW installing mini split heat pump furnace, heat pump, m… —
2026-08-27 HVAC
Source type: Trade
 $16,000 9225 B MARY AVE NW installing mini split heat pump furnace, heat pump, m… —
2026-08-27 Electrical — 2700 W COMMODORE WAY Machine room: Replace (1) existing disconnect in machine room with new fusible d… fire alarm replacement KIRBY ELECTRIC INCORPORATED
2026-08-27 Electrical — 1301 5TH AVE (5) new PIU zones Modify (5) existing PIU zones - Assumes using the existing con… MACDONALD MILLER FACILITY SOLUTIONS LLC
2026-08-27 Electrical — 3727 SW IDA ST (1) 50amp sauna circuit 50A KEMLY ELECTRIC, INC.
2026-08-27 Electrical — 2100 24TH AVE S lighting upgrade Range Electric Company, LLC
2026-08-27 HVAC
Source type: Trade
 $14,000 1404 4TH AVE REPLACE (2) EXISTING VAV BOXES WITH NEW - SUBJECT TO FIELD INSPECTION (STFI) replacement HVAC replacement MACDONALD MILLER FACILITY SOLUTIONS LLC
2026-08-27 HVAC
Source type: Trade
 $7,238 1000 DEXTER AVE N Misc. duct and GRD mods - Subject to Field Inspection (STFI) Enviromech
2026-08-27 Signage
Source type: Trade
 $25,000 318 NE NORTHGATE WAY Replace existing building signs with new signs like for like like for like replacement HVAC changeout Ion Sign Group LLC
2026-08-27 HVAC
Source type: Trade
 $696,427 125 15th AVE 20 UNIT APT BUILDING 20 HVAC systems OWP LLC
2026-08-27 Electrical
Source type: Trade
 $4,000 1750 22ND AVE S Install one new Double face illuminated projecting blade sign. When sign is to b… RES Graphics
2026-08-27 Plumbing
Source type: Trade
 $12,645 912 16TH AVE E Installation of a new 13D fire sprinkler system in home remodel. sprinkler New installation PATRIOT FIRE PROTECTION
Contact details pending
2026-08-27 Electrical — 1101 MADISON ST GENERATOR LOAD TEST ×2 Pacific Power Group
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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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