Mercer Island Building 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.

Free weekly permit summary for Mercer Island

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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Published permit & code records

Permit data through 2026-09-18

1,626 permits sorted by date

⇄ Swipe or scroll to see address & contractor

Date Type Value Address Details Contractor / Status Save
2026-06-05 HVAC/Mech 8493 W MERCER WAY 1 Heat Pump, 1 Air Conditioner, T-stat Wiring heat pump GREENWOOD HEATING &HOME SRVS
2026-06-05 HVAC/Mech 8493 W MERCER WAY 1 Air Conditioner, 1 Heat Pump GREENWOOD HEATING &HOME SRVS
2026-06-05 Electrical 7430 SE 40TH ST 2 Receptacle - circuit GREENWOOD HEATING &HOME SRVS
2026-06-05 Electrical 8236 SE 24TH ST Connect Panel Power 24v 24V E C COMPANY dba
2026-06-05 HVAC/Mech 6506 SE 28TH ST 1 Heat Pump, 2 Furnace SOUTH WEST PLMBG &WATER HTRS
2026-06-04 Electrical 6905 96TH AVE SE 1 Temporary Service FUTURE FLOW ELECTRIC LLC
2026-06-04 General Construction 4043 97TH AVE SE Remove 3 Trees - Rplc w/ 4 Trees APICAL TREE SERVICES LLC
2026-06-04 HVAC/Mech 6759 82ND AVE SE 1 Heat Pump,1 Furnace,2 Exhaust Fan/Bath/Laundry furnace, heat pump MAYSTER HEATING &AIR
2026-06-04 HVAC/Mech 5350 LANSDOWNE LN 1 Heat Pump, 1 Receptacle, Commwires LIGHTS ON ELECTRIC LLC
2026-06-04 HVAC/Mech 4250 90TH AVE SE 1 Water Heater - Gas Mechanical gas FAST WATER HEATER COMPANY
2026-06-04 HVAC/Mech 7525 SE 24TH ST Install New VAV New installation HVAC installation ENVIROMECH
2026-06-04 General Construction 2424 60TH AVE SE Reomve 1 Tree - Rplc w/ 2 Trees HUYNH, CAO VAN+HUONG THI
2026-06-04 HVAC/Mech 3018 69TH AVE SE MSFR ON VACANT LOT
2026-06-04 Plumbing 6150 94TH AVE SE SIDESEWER ROTO ROOTER SERVICES CO
2026-06-03 Electrical 8236 SE 24TH ST 1 Receptacle - circuit
2026-06-03 Electrical 7960 ISLAND CREST WAY 1 EV Charging Station EV charger
2026-06-02 Fire Protection 3001 78TH AVE SE Commercial Fire Alarm TI fire alarm Everon Solutions
2026-06-02 General Construction 4332 86TH AVE SE Onsite detention system, extend city system EB#5 LLC, None
2026-06-02 Electrical 2933 76TH AVE SE 100amp Breaker Panel & 7 Light Fixtures 100A
2026-06-02 Electrical 9258 SE 46TH ST 1 Generator - Outside
2026-06-02 HVAC/Mech 6849 84TH AVE SE 1 Furnace, 1 Air Conditioner, T-stat Wiring furnace
2026-06-02 HVAC/Mech 3055 80TH AVE SE 1 Heat Pump heat pump
2026-06-02 Plumbing 6226 ISLAND CREST WAY 1 Water Supply Piping
2026-06-02 HVAC/Mech 6849 84TH AVE SE 1 Air Conditioner - circuit, 1 Furnace - circuit
2026-06-02 Electrical 2939 76TH AVE SE 125amp Breaker Panel Replacement 125A replacement
2026-06-02 Electrical 2947 76TH AVE SE 100amp Breaker Panel & 3 Smoke Detectors 100A
2026-06-02 General Construction 4525 FOREST AVE SE JOB# 101194646 - Install Risers, OH to UG Svc Conversion POTELCO INC
2026-06-02 Electrical 6849 84TH AVE SE 1 Electric Vehicle Charging Station EV charger
2026-06-02 Plumbing 2048 84TH AVE SE Drainage from new plus replaced hard surface to lake
2026-06-02 Electrical 3700 E MERCER WAY UFER GROUNDING FOR BUILDING EXACT ELECTRIC LLC
2026-06-02 Electrical 2933 76TH AVE SE 125amp Breaker Panel Replacement 125A replacement
2026-06-02 Fire Protection 7525 SE 24TH ST Commercail Fire Alarm TI fire alarm CONVERGINT TECHNOLOGIES, LLC.
2026-06-01 HVAC/Mech 3842 82ND AVE SE Replace existing Wood Shake replacement
2026-06-01 HVAC/Mech 8464 W MERCER WAY 1 Water Heater - Gas Mechanical gas
2026-06-01 Plumbing 4310 91ST AVE SE SIDESEWER
2026-06-01 HVAC/Mech 8010 SE 65TH ST 1 Air Conditioner - circuit
2026-06-01 Electrical 4419 E MERCER WAY 1 Service Change 1-200 amps, 1 Generator - Outside 200A
2026-06-01 HVAC/Mech 5340 W MERCER WAY T-stat Wiring, 1 Heat Pump heat pump
2026-06-01 Electrical 3656 93RD AVE SE 1 Light Fixture, 2 Receptacle, 2 Switch
2026-06-01 HVAC/Mech 8010 SE 65TH ST 1 Heat Pump, 1 Furnace 100,000 BTU or Less furnace, heat pump
2026-06-01 Electrical 8371 SE 31ST ST 1 Generator - Outside
2026-06-01 HVAC/Mech 8371 SE 31ST ST 1 Gas Piping Outlets - Mech
2026-05-30 HVAC/Mech 4036 85TH AVE SE 1 Furnace, 1 Heat Pump furnace, heat pump
2026-05-30 HVAC/Mech 4036 85TH AVE SE 1 Heat Pump - circuit, 1 Furnace - circuit
2026-05-29 General Construction 7900 SE 28TH ST JOB# JB0002528957 - Splicing in Vaults in the ROW CANNON CONSTRUCTION INC
2026-05-29 HVAC/Mech 2725 69TH AVE SE JOB# 101202552 - Install New Pole and Replace Existing Pole replacement
2026-05-29 General Construction 7901 SE 65TH ST JOB# 105109879 - Parking in the ROW
2026-05-29 Electrical 8480 85TH AVE SE JOB# 101195003 - Upgrade Transformer
2026-05-29 Electrical 2727 60TH AVE SE 1 Security system (Low Voltage Only) low voltage
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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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