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.

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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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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
2026-04-13 Plumbing 2980 76TH AVE SE WATER SUPPLY PIPING ×7 HD PARTNERS LLC
2026-04-13 Plumbing 2980 76TH AVE SE PLUMBING HD PARTNERS LLC
2026-04-13 Plumbing 2980 76TH AVE SE 1 WATER SUPPLY PIPING HD PARTNERS LLC
2026-04-13 General Construction 8805 SE 39TH ST WORK WITHOUT PERMIT - RESTORE CARPORT TO ORIGINAL USE
2026-04-10 Electrical 7915 SE 34TH ST SERVICE PANEL CHANGE OUT service panel replacement Panel service QNORTHWEST LLC
2026-04-10 General Construction 7007 SE MAKER ST BUILD STUDIO ROOM ADDITION TO THE 2ND FLOOR OF SFR PETER DAVIS BUILDERS INC
2026-04-10 HVAC/Mech 2201 81ST AVE SE 1 Heat Pump - circuit SV ELECTRIC LLC
2026-04-10 Electrical 4720 84TH AVE SE 1 Receptacle - circuit REILLY'S ELECTRIC
2026-04-10 Plumbing 7416 MERCER TERRACE DR 9 PLUMBING FIXTURES 9 fixtures
2026-04-10 Plumbing 5320 BUTTERWORTH RD SEWER CONNECTION (FEE ONLY) FOR CREATION OF NEW SEPARATE SFR line work New installation MacPherson Construction & Design
2026-04-10 Electrical 7416 MERCER TERRACE DR 10 Light Fixture - circuit, 8 Switch - circuit
2026-04-10 General Construction 5320 BUTTERWORTH RD MATERIALS DELIVERY - NO LANE CLOSURE MacPherson Construction & Design
2026-04-10 Electrical 9115 SE 54TH ST 6 Receptacle - circuit GREENWOOD HEATING &HOME SRVS
2026-04-10 General Construction 7549 SE 29TH ST REV- REMODEL EXISTING BATHROOM
2026-04-10 Electrical 4725 E MERCER WAY 1 Receptacle - circuit WIRE WAYS LLC
2026-04-09 Electrical 7445 86TH AVE SE 1PANEL,1EV CHARGER,1 RES HEATER,6LIGHTS KEMLY ELECTRIC INC
2026-04-09 Roofing 2755 77TH AVE SE MET MARKET REROOF replacement Re-roof FRANKLIN ROOFING
2026-04-09 HVAC/Mech 4148 BOULEVARD PL 1 Furnace furnace SEATOWN ELECTRIC HTG &AIRLLC
2026-04-08 Plumbing 6835 83RD AVE SE 1 Water Supply Piping JC PLUMBING LLC
2026-04-08 HVAC/Mech 4044 78TH AVE SE 1 Heat Pump heat pump OVERLAKE HTG A/C &SHTMTL LLC
2026-04-08 Electrical 8445 SE 39TH ST PANEL,5APPLIANCE, 12 LIGHT,10 RECP, 8SWITCH ADVANCED NW ELECTRIC LLC
2026-04-08 Plumbing 3008 70TH AVE SE WORK COVERED ON 2403-079 BIGFOOT PLUMBING LLC
2026-04-08 General Construction 6511 80TH AVE SE ROW TREE REMOVAL
2026-04-08 Electrical 4330 E MERCER WAY 1 Service Change, 1 EV Charging Station EV charger A &I ELECTRICAL REPAIR INC
2026-04-07 Plumbing 2434 73RD AVE SE 12 PLUMBING FIXTURES 12 fixtures DAVIS PLUMBING INC
2026-04-07 Electrical 9162 SE 54TH ST 1 SERVICE CHANGE EMERALD CITY ELECTRIC LLC
2026-04-07 HVAC/Mech 6230 89TH AVE SE 1 Gas BBQ, 1 Gas Log, 2 Gas Piping Outlets PUGET SOUND GAS
2026-04-07 Plumbing 3706 84TH AVE SE SIDESEWER REPAIR STEADY FLOW SWR &DRAIN CO
2026-04-07 Plumbing 9019 SE 61ST ST SIDESEWER THE PLUMBING &DRAIN COMPANY
2026-04-07 HVAC/Mech 2434 73RD AVE SE Replace existing Torchdown/Hotmop replacement HVAC replacement R K K CONSTRUCTION INC
2026-04-07 Electrical 2929 76TH AVE SE 104 UNIT PORCH LIGHTS, 52 SWITCH-CIRCUITS 104 HVAC systems A WELL GROUNDED ELECTRICIAN
2026-04-07 Plumbing 8404 SE 36TH ST SIDESEWER PRICOR TECHNOLOGIES LLC
2026-04-07 General Construction 3842 E MERCER WAY REMODEL OF ENTRY & BATHROOMS
2026-04-07 HVAC/Mech 2201 81ST AVE SE 1 Air Handler, 1 Heat Pump heat pump ECO AIR NW
2026-04-07 HVAC/Mech 7807 89TH PL SE 1 HEAT PUMP GREEN CITY ELECTRICAL LLC
2026-04-07 Plumbing 8277 W MERCER WAY 1 Water Supply Piping SEATOWN ELECTRIC HTG &AIRLLC
2026-04-07 Plumbing 8445 SE 39TH ST 13 FIXTURE PLUMBING PROJECT 13 fixtures NEWWAY ENERGY &HOMETECHNIC
2026-04-06 General Construction 4316 86TH AVE SE Removing and replace 3" of the asphalt driveway STATEWIDE PARKING LOT SERVICES, INC.
2026-04-06 Electrical 4225 83RD AVE SE 1 EV CHARGING STATION EV charger SWITCH ELECTRIC LLC
2026-04-06 HVAC/Mech 2969 74TH AVE SE JOB# 101198527 - OH Service Replacement replacement HVAC replacement POTELCO INC
2026-04-06 Fire Protection 3236 78TH AVE SE Relocation of Fire Alarm Annunciator fire alarm
2026-04-06 General Construction 9055 SE 79TH ST REMOVE 1 HAZARD TREE
2026-04-06 Plumbing 7011 92ND AVE SE 1 PRESSURE REDUCING VALVE, 2 WATER HEATERS GREENWOOD HEATING &HOME SRVS
2026-04-06 General Construction 4440 92ND AVE SE 3rd story addition to sfr + enclose carport to garage
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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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