Mercer Island Fire Protection Permits & Property Data

Heads up: The public source includes contractor names on some current permit records, but coverage has not yet reached PermitGrab's market-level reporting threshold. This page focuses on permit records and property data; contractor names are shown where the public source publishes them.

1,626 indexed permits · Mercer Island, Washington.

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Mercer Island building permits — key stats
Newest permit 2026-09-18

PermitGrab tracks 1,626 building permits in Mercer Island, WA as of 2026-09-18.

Recent record dates

Record recency is based on available filing or issue dates; it does not verify publication time or collection delay.

Newest permit date:

PermitGrab Pro is a $149/mo subscription for current municipal permit, property, and code-violation records. Some contractor names are available from the official source, but coverage has not reached market-level reporting. This page focuses on the permit and property signals it does publish. 14-day Pro trial below — choose your market first, then card required at checkout · cancel anytime before day 14.

Filter Mercer Island permits by trade: solar · roofing · HVAC · electrical · fire protection · new construction.

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One email a week with the newest Mercer Island building permits — addresses, project details, and property activity where available. Free summary only — no credit card. Pro research tools require a separate 14-day trial with a card. Available fields vary by source. Unsubscribe anytime.

1,626
Indexed Permits
Contractor count unavailable
Property Owners · count unavailable
2026-09-21
Last Updated
Updated recently · 2026-09-18
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Showing 85 permits for Fire Protection

Published permit & code records

Permit data through 2026-09-18

85 permits sorted by date

⇄ Swipe or scroll to see address & contractor

Date Type Value Address Details Contractor / Status Save
2026-09-18 Fire Protection 9166 PARKWOOD RIDGE RD Residential Fire Alarm System fire protection, fire… ISLAND SECURITY SYSTEMS INC
2026-09-18 Fire Protection 5818 W MERCER WAY NFPA 13R Fire Sprinkler System fire protection, spri… ADVANCED FIRE PROTECTION
2026-09-17 Fire Protection 8244 SE 30TH ST Residential Fire Alarm System fire protection, fire… ISLAND SECURITY SYSTEMS INC
2026-09-16 Fire Protection 2436 74TH AVE SE Residenital Fire Alarm System fire protection, fire… ISLAND SECURITY SYSTEMS INC
2026-09-16 Fire Protection 2733 62ND AVE SE Residenital Fire Alarm System fire protection, fire… ISLAND SECURITY SYSTEMS INC
2026-09-16 Fire Protection 2430 74TH AVE SE Residential Fire Alarm System fire protection, fire… ISLAND SECURITY SYSTEMS INC
2026-09-15 Fire Protection 8661 SE 60TH ST Residential Fire Alarm System fire protection, fire… SIGNATURE AUDIO VIDEO INC
2026-09-03 Fire Protection 8005 SE 33RD PL Fire Alarm System Replacement Upgrade fire protection, fire… PYE-BARKER FIRE & SAFETY LLC
2026-09-02 Fire Protection 8421 SE 68TH ST QFC SPRINKLER TI fire protection, spri… COSCO FIRE PROTECTION
2026-08-28 Fire Protection 4802 E MERCER WAY Residential Fire Alarm System fire protection, fire… ISLAND SECURITY SYSTEMS INC
2026-08-28 Fire Protection 8661 SE 60TH ST NFPA 13D Residential Sprinkler System fire protection, spri… CASCADIA FIRE PROTECTION LLC
2026-08-25 Fire Protection 8035 SE 45TH ST NFPA 13D Fire Sprinkler System fire protection, spri… RAIN CITY FIRE PROTECTION LLC
2026-08-24 Fire Protection 7833 SE 28TH ST INSTALL VERTICAL 120 GAL PROPANE TANK fire protection GENESEE FUEL & HEATING CO
2026-08-20 Fire Protection 6905 96TH AVE SE NFPA 13D Residential Fire Sprinkler System fire protection, spri… NORTHWEST FIRE SYSTEMS LLC
2026-08-13 Fire Protection 8421 SE 68TH ST Dry Pendent Sprinkler Replacements fire protection, spri… ARCHER CONSTRUCTION
2026-08-12 Fire Protection 6202 SE 22ND ST Residential Firew Alarm System fire protection EIGHTBLOX LLC
2026-08-12 Fire Protection 8541 SE 82ND ST Residential Fire Alarm System fire protection, fire… ISLAND SECURITY SYSTEMS INC
2026-08-11 Fire Protection 7270 E MERCER WAY DUAL SWING GATE AND ACCESS AD SECURITY GATES AND ACCESS LLC
2026-08-05 Fire Protection 8473 SE 68TH ST Switching to Cellular Dialer PYE-BARKER FIRE & SAFETY LLC
2026-08-03 Fire Protection 2262 78TH AVE SE NFPA 13D Fire Sprinkler System sprinkler RAIN CITY FIRE PROTECTION LLC
2026-06-23 Fire Protection 2419 72ND AVE SE NFPA72 Residential Fire Alarm System fire alarm DISTINCTIVE AUDIO & VIDEO
2026-06-22 Fire Protection 8441 SE 68TH ST Commercial Sprinkler TI sprinkler VIKING AUTOMATIC SPRINKLER CO
2026-06-22 Fire Protection 2262 78TH AVE SE Install Residential Fire Alarm System fire alarm ISLAND SECURITY SYSTEMS INC
2026-06-22 Fire Protection 8109 SE 71ST ST Residential Fire Alarm fire alarm AUDIO PLUS LLC
2026-06-22 Fire Protection 7785 SUNSET HWY Fire Alarm TI fire alarm AAA FIRE PROTECTION INC
2026-06-11 Fire Protection 7750 SE 29TH ST AES Radio Installation GUARDIAN SECURITY SYSTEMS
2026-06-05 Fire Protection 9603 SE 61ST PL Residential Fire Alarm System fire alarm AUDIO PLUS LLC
2026-06-02 Fire Protection 3001 78TH AVE SE Commercial Fire Alarm TI fire alarm Everon Solutions
2026-06-02 Fire Protection 7525 SE 24TH ST Commercail Fire Alarm TI fire alarm CONVERGINT TECHNOLOGIES, LLC.
2026-05-21 Fire Protection 4545 ISLAND CREST WAY Replace Existing Dialer for Fire Alarm fire alarm SAFETY TEAM
2026-05-19 Fire Protection 7244 N MERCER WAY Residential Fire Alarm System fire alarm ISLAND SECURITY SYSTEMS INC
2026-05-14 Fire Protection 8326 AVALON DR INSTALL MANUAL DRY STANDPIPE SYSTEM standpipe COLUMBIA FIRE LLC
2026-05-12 Fire Protection 10 BROOK BAY RD Residential Fire Alarm System fire alarm
2026-05-08 Fire Protection 8480 85TH AVE SE Residential Fire Alarm System fire alarm
2026-05-08 Fire Protection 4661 FOREST AVE SE Residential Fire Alarm System fire alarm
2026-05-08 Fire Protection 3029 62ND AVE SE Residenital Fire Alarm System fire alarm
2026-05-04 Fire Protection 2430 84TH AVE SE MI ROWING CLUB TEMPORARY STORAGE TENT
2026-04-29 Fire Protection 5024 W MERCER WAY Residenital Fire Alarm System fire alarm
2026-04-29 Fire Protection 7660 N MERCER WAY Install new Alarm Communicator
2026-04-28 Fire Protection 7525 SE 24TH ST Commercial Sprinkler TI sprinkler
2026-04-24 Fire Protection 7650 RIDGECREST LN Residential Fire Alarm System fire alarm
2026-04-23 Fire Protection 8109 SE 71ST ST NFPA 13D Fire Sprinkler System sprinkler
2026-04-23 Fire Protection 6180 90TH AVE SE Residential Fire Alarm System fire alarm
2026-04-16 Fire Protection 2411 76TH AVE SE Set up & Install Propane Tanks GENESEE ENERGY
2026-04-16 Fire Protection 3632 90TH AVE SE NFPA 13D Residential Fire Sprinkler System sprinkler RAINIER CUSTOM PLUMBING, INC.
2026-04-16 Fire Protection 2251 71ST AVE SE NFPA 13D Fire Sprinkiler System RAIN CITY FIRE PROTECTION LLC
2026-04-16 Fire Protection 4634 E MERCER WAY 2 Automatic Gates w/ Knox Boxes
2026-04-16 Fire Protection 8240 SE 26TH ST Residential Fire Alarm System fire alarm ISLAND SECURITY SYSTEMS INC
2026-04-06 Fire Protection 3236 78TH AVE SE Relocation of Fire Alarm Annunciator fire alarm
2026-04-01 Fire Protection 7922 E MERCER WAY Residential Fire Alarm System fire alarm DISTINCTIVE AUDIO & VIDEO
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Permit Types in Mercer Island
Construction Activity in Mercer Island

New building permits in Mercer Island, Washington show where construction activity is occurring. Filter the public records by trade, date, address, and project value to research active projects and property activity. Contractor names are available on some current records; contact coverage varies by filing.

About Mercer Island Building Permits

Mercer Island, Washington processes building permits covering residential construction, commercial buildouts, renovations, and specialty trade work. PermitGrab tracks 1626+ Mercer Island building permits — newest permit date: 2026-09-18 from official city sources.

Each record can show the project address, scope, permit type, and value where the city publishes them. The source-published contractor records do not meet the coverage threshold for this city. PermitGrab does not represent this as contractor-contact coverage. Where property-owner records are available, they are matched to permit addresses separately.

How to use Mercer Island permit data

Filter the current records by trade, date, address, or project value to research construction activity. The most useful workflow in this market is verifying the project signal first, then using the property data that is actually available for that address.

PermitGrab methodology · Page data current as of · Source: Mercer Island WA building permits (MyBuildingPermit.com regional portal).

Who appears in Mercer Island permit records?

PermitGrab indexes 1,626 building permits in Mercer Island. New records appear as they are available from the source.

How fresh is Mercer Island permit data?

The most recent permit indexed for Mercer Island is dated 2026-09-18. Newest permit date: 2026-09-18. Permit records carry filing date, address, project value, and permit type, plus contractor name where the source publishes it. Use a recent published record for project research; it does not show bid availability or a request for service.

What construction appears in Mercer Island permit records?

Mercer Island permit activity covers 1,626 indexed permits. The records can cover new construction, residential renovations, mechanical/electrical/plumbing upgrades, roof replacements, demolitions, or tenant improvements. Their usefulness for a contractor or supplier depends on the published project details, timing, and service area.

How to look up Mercer Island building permits

Search recent Mercer Island, WA building permits by address, and permit type in the table above — pulled from the Mercer Island building department's public permit records. New filings appear here as they are published. Filter by trade or search an address to look up a specific permit. For this week's filing volume, see the Mercer Island Permit Pulse.

Nearby Washington Cities — explore building permits in other Washington cities

Monitor Mercer Island permit & property activity

Email alerts when new public records are available for new permits and property activity. Contractor names are shown where the current public filing includes them; contact coverage varies by record. Owner information is shown only where it can be matched from available public records.

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Frequently Asked Questions about Mercer Island Building Permits

How many building permits does PermitGrab track in Mercer Island?

PermitGrab currently tracks 1626 building permits in Mercer Island, Washington. Data is pulled directly from the official municipal source on every collection cycle and includes permit number, address, permit type, status, estimated value, and contractor information where the source publishes it.

How fresh is the Mercer Island permit data?

PermitGrab checks the official source on each collection cycle. The source date and its observed update cadence are shown above, so you can judge the data’s recency before acting on it.

How can contractors find construction leads in Mercer Island?

Contractors can research Mercer Island activity by filtering current permits by trade, location, and project type. Some current permit records include contractor names; use those source-published names alongside the project details. Property information is shown only where public records can be matched.

What’s included in the 14-day trial?

The 14-day trial includes full Pro access to Mercer Island — CSV export, trade and value-tier filters, lead scoring, and violation cross-reference flags. Some current permit records include source-published contractor names; contact fields appear only where published or matched. Property information is available only where public records can be matched. Card required to start; cancel anytime before day 14.

Can I cancel anytime?

Yes. Cancel any time from your account page — no contracts, no cancellation fees. Your subscription stays active through the end of the current billing period.

Who buys this data?

Mercer Island permit data, by use case

Same data, different angle. Pick the playbook that matches what you sell.

Home service companies
An addition or remodel can be useful project context for HVAC, plumbing, or warranty outreach. Review the project signal before outreach.
Solar installers
Roof permits and electrical upgrades in Mercer Island provide project context for solar-market research. Filter by the current project signal and verify ownership separately.
Insurance agents
Mercer Island renovations can identify properties for a policy-review workflow. Confirm coverage needs independently before contacting a property owner.
Material suppliers & manufacturer reps
Choose a product-line research workflow, then use published job type, description, and value fields where available for territory and demand research. A permit is not a materials order, purchase signal, or open bid.
Developers & new construction
Sort source-published new-construction records by project value and type to research active projects and property activity.
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Mercer Island permits by trade

Mercer Island addition permits Mercer Island concrete & masonry permits Mercer Island demolition permits Mercer Island electrical permits Mercer Island fire protection permits Mercer Island general construction permits Mercer Island hvac permits Mercer Island interior renovation permits Mercer Island landscaping permits Mercer Island new construction permits Mercer Island plumbing permits Mercer Island roofing permits
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