Mercer Island Building Permits & Project Research

1,986 indexed permits · 306 contractor names in the last 90 days · Mercer Island, Washington.

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Public-record project research, not a shared-lead marketplace. Use the permit, source date, and available fields to research the builder, project, or adjacent work before outreach. Cancel anytime in one click — no retention call.

Mercer Island building permits — key stats
Active contractors 306
Newest permit 2026-11-04

PermitGrab tracks 1,986 building permits in Mercer Island, WA as of 2026-11-04, including 306 active contractors identified from filings in the last 90 days.

✓ 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. In this market, that includes contractor records from the official municipal feed. 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 — contractors, addresses, and project values. 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.

1,986
Indexed Permits
306
Contractor names (90 days)
2026-11-05
Last Updated
Source date: 2026-11-04
📊 View Mercer Island source-dated permit records →

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New permits, and contractor activity sent when new public records are available.

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Published permit & code records

Permit data through 2026-11-04
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1,986 permits sorted by date

Project value is blank on every record displayed here, so the Value column is omitted.

⇄ Swipe or scroll to see address & contractor

Date Type Address Details Contractor / Status Save
2026-03-20 General Construction
Source type: RIGHTOFWAY USE
7615 E MERCER WAY JOB# 108663997 - Gas Work INFRASOURCE SERVICES LLC
2026-03-20 HVAC
Source type: BUILDING
5819 E MERCER WAY Replace existing Wood Shake replacement HVAC replacement ROCK ROOFING INC
2026-03-20 HVAC
Source type: BUILDING
3734 E MERCER WAY REPAIR GARAGE FROM CAR IMPACT HVAC repair —
2026-03-20 Electrical
Source type: ELECTRICAL
2735 69TH AVE SE 1 Security system ADT LLC
2026-03-20 Plumbing
Source type: PLUMBING
3726 GALLAGHER HILL RD 4 GAS PIPING OUTLETS WRIGHT CONNECTION PLUMBING LLC
2026-03-20 Interior Renovation
Source type: BUILDING
7929 SE 37TH ST INTERIOR REMODEL OF BED & BATH —
2026-03-20 Fire Protection
Source type: FIREPROTECTION
7414 78TH AVE SE NFPA 13D Residential Fire Sprinkler System sprinkler GARY PROKASH PLUMBING & FIRE…
2026-03-20 General Construction
Source type: STORMWATER
4040 97TH AVE SE Connect to the CIty Catch Basin Only —
2026-03-20 Electrical
Source type: ELECTRICAL
6208 E MERCER WAY 1 EV Charging Station EV charger NORTHWEST ELECTRIC &SOLAR LLC
2026-03-19 Plumbing
Source type: PLUMBING
5321 LANSDOWNE LN 2 TOILETS/2SINKS/1 WASHER/SHOWER SCHMITTY'S PLUMBING
📞 (•••) •••-••••
2026-03-19 Electrical
Source type: ELECTRICAL
5634 90TH AVE SE 4 RECEPTACLE CIRCUITS VD ELECTRIC
📞 (•••) •••-••••
2026-03-19 General Construction
Source type: RIGHTOFWAY USE
7420 78TH AVE SE MATERIALS DELIVERY - NO LANE CLOSURE HIGHLANDS BUILDER GROUP
2026-03-19 Electrical
Source type: ELECTRICAL
3225 84TH AVE SE 1 GENERATOR GREENWOOD HEATING &HOME SRVS
2026-03-19 HVAC
Source type: MECHANICAL
3225 84TH AVE SE GAS PIPING GREENWOOD HEATING &HOME SRVS
2026-03-19 Plumbing
Source type: SIDESEWER
7420 78TH AVE SE SIDE SEWER CONNECT line work HIGHLANDS BUILDER GROUP
2026-03-19 Electrical
Source type: ELECTRICAL
3030 69TH AVE SE 5 LIGHT FIXTURES PANTHER ELECTRIC LLC
2026-03-19 General Construction
Source type: RIGHTOFWAY USE
3818 83RD AVE SE MATERIALS DELIVERY - NO LANE CLOSURE CASCADIA DESIGN-BUILD NW LLC
2026-03-19 Electrical
Source type: ELECTRICAL
7415 91ST AVE SE 1 RECEPTACLE CIRCUIT VAP ELECTRIC INC
2026-03-19 Electrical
Source type: ELECTRICAL
3421 72ND AVE SE 2 HEAT PUMPS ×2 GREENWOOD HEATING &HOME SRVS
2026-03-19 HVAC
Source type: BUILDING
8602 N MERCER WAY Deck Replacement on a existing SF home. replacement HVAC replacement —
2026-03-19 Plumbing
Source type: RIGHTOFWAY USE
7420 78TH AVE SE INSTALL SEWER,WATER, AND/OR STORM -NO LANE CLOSURE line work New installation HIGHLANDS BUILDER GROUP
2026-03-19 Plumbing
Source type: RIGHTOFWAY USE
3818 83RD AVE SE INSTALL WATER SERVICE -NO LANE CLOSURE line work New installation CASCADIA DESIGN-BUILD NW LLC
2026-03-18 Electrical
Source type: ELECTRICAL
7809 SE 75TH PL SERVICE CHARGE BOLT ELECTRIC LLC
2026-03-18 Electrical
Source type: ELECTRICAL
2929 76TH AVE SE 1 SERVICE PANEL CHANGE OUT service panel replacement Panel service REDDIE ELECTRIC LLC
2026-03-18 Plumbing
Source type: PLUMBING
8405 SE 53RD PL 1 WATER HEATER standard Water heater FAST WATER HEATER COMPANY
2026-03-18 HVAC
Source type: MECHANICAL
7703 SE 78TH ST 1 HEAT PUMP heat pump ALEXANDER'S HEATING &AC LLC
2026-03-18 Electrical
Source type: ELECTRICAL
7703 SE 78TH ST 1 HEAT PUMB OMEGA ELECTRIC
2026-03-17 Electrical
Source type: ELECTRICAL
8441 SE 68TH ST Code Corrections & New Lighting KEMLY ELECTRIC INC
2026-03-17 Electrical
Source type: ELECTRICAL
7785 SUNSET HWY Electrical TI FAR WEST TECHNOLOGIES
📞 (•••) •••-••••
2026-03-17 HVAC
Source type: MECHANICAL
8071 W MERCER WAY 1 GAS PIPING PREMIER MECH AND ELECTRIC LLC
2026-03-17 Electrical
Source type: ELECTRICAL
9219 SE 68TH ST 1 HOOT FAN, 2 LIGHT FIXTURES, 5 RECEPTACLE CIRCUITS —
2026-03-17 HVAC
Source type: RIGHTOFWAY USE
2731 77TH AVE SE JOB# P.315012 - Fiber Placing & Splicing —
2026-03-17 Plumbing
Source type: SIDESEWER
4833 90TH AVE SE SIDESEWER DISCONNECT (RETRO PERMIT TO CLARIFY PERMIT RECORD) C-SWIFT CONSTRUCTION LLC
2026-03-17 Electrical
Source type: RIGHTOFWAY USE
9025 SE 48TH ST JOB# 150212 - Conduit Installation ADVANCED CONCEPTS LLC
2026-03-17 HVAC
Source type: RIGHTOFWAY USE
3029 62ND AVE SE JOB# 101197729 - Install Riser for OH to UG Service Conversi New installation HVAC installation POTELCO INC
2026-03-17 Electrical
Source type: ELECTRICAL
3230 73RD AVE SE 1 EV CHARGING STATION EV charger MCCARTHY ELECTRIC &TECH LLC
2026-03-17 Roofing
Source type: SHORELINE
8410 BENOTHO PL REPLACE FLAT ROOF SHEATHING WITH PVC MEMBRANE. flat replacement —
2026-03-17 Plumbing
Source type: SIDESEWER
2777 70TH AVE SE SIDESEWER PRICE BUSTERS PLUMBING
2026-03-17 Electrical
Source type: ELECTRICAL
6230 E MERCER WAY 1 HOT WATER TANK GREENWOOD HEATING &HOME SRVS
2026-03-17 General Construction
Source type: CRITICAL AREAS
7671 W MERCER WAY VERIFY PRESENCE/ABSENCE OF WATERCOURSES AND WETLANDS —
2026-03-17 Demolition
Source type: DEMO
4833 90TH AVE SE DEMO SFR FOR SUBDIVSION (RETRO PERMIT TO CLARIFY RECORD) C-SWIFT CONSTRUCTION LLC
2026-03-17 Plumbing
Source type: PLUMBING
6230 E MERCER WAY 1 HOT WATER HEATER standard Water heater GREENWOOD HEATING &HOME SRVS
2026-03-17 Fire Protection
Source type: FIREPROTECTION
4040 97TH AVE SE NFPA 13D Fire Sprinkler System sprinkler —
2026-03-16 Plumbing
Source type: SIDESEWER
8203 AVALON DR SIDESEWER RECONNECT ATERA HOMES LLC
2026-03-16 General Construction
Source type: TREE
7603 SE 76TH ST REMOVE 1 TREE - Rplc w/ 2 trees ROOT CAUSE LLC
2026-03-16 Demolition
Source type: DEMO
8203 AVALON DR DEMO SFR TO FOUNDATION AND REBUILD ATERA HOMES LLC
2026-03-16 Plumbing
Source type: SIDESEWER
8203 AVALON DR SIDESEWER DISCONNECT ATERA HOMES LLC
2026-03-16 Plumbing
Source type: RIGHTOFWAY USE
8203 AVALON DR INSTALL SEWER,WATER, AND/OR STORM -NO LANE CLOSURE line work New installation ATERA HOMES LLC
2026-03-16 Electrical
Source type: ELECTRICAL
8203 AVALON DR TEMPORARY POWER ATERA HOMES LLC
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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 being recorded. Contractors can filter the available public records by trade, date, address, and project value to research projects and plan outreach using the fields the source publishes.

About Mercer Island Building Permits

Mercer Island, Washington processes building permits covering residential construction, commercial buildouts, renovations, and specialty trade work. PermitGrab tracks 1,986+ Mercer Island building permits — newest permit date: 2026-11-04 from official city sources.

Building permits in Mercer Island can document new construction, renovations, and specialty work. The fields in a public record vary by filing, but may include a project address, scope, estimated cost, or contractor name. Use the displayed source information to evaluate whether a record is useful for your market research.

How Contractors Use Mercer Island Permit Data

HVAC contractors, electricians, plumbers, and roofers can use Mercer Island building-permit records to research visible construction activity. A permit may signal a project that is relevant to a particular trade, but the source record does not establish that its owner is seeking a bid.

Use the published date, project details, and any named business contact to research a project before outreach. Public records are not exclusive, and outreach results depend on the market, project, and your own process.

Eligible subscribers can receive trade-filtered alerts when new records are collected. Alert timing and field coverage follow the underlying source rather than a universal schedule.

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 1,986 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 2026-11-04. Newest permit date: 2026-11-04. 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 1,986 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.

1 workflow for Mercer Island research

Start with the published project record.

🕵️

The project-team lookup

Search a business name to review its recorded permit activity in Mercer Island and the project details the public source publishes. Use the scope, timing, and address to research complementary work; a record is not a request for bids.

Research Mercer Island project activity — Pro $149/mo

How to look up Mercer Island building permits

Search recent Mercer Island, WA building permits by address, contractor, 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 and the most active contractors, see the Mercer Island Permit Pulse.

Nearby Washington Cities — explore building permits in other Washington cities

Research Mercer Island project activity

Email alerts when new public records are available for newly published permits and recorded project-team activity. Contact details are shown only where the public source publishes them. 14-day Pro trial for alerts — card required; Pro $149/mo unlocks full available 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 1,986 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 find leads in Mercer Island by filtering PermitGrab by trade and ZIP code, then researching the recorded contractor and project activity. Contact details appear only where a public record includes them; saved-search email alerts track new matching records as they are published.

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. Contractor phone and website reveals are included where source-published. 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.

Contractors & subs
Recent Mercer Island contractor activity is a signal for labor and material demand. Contact details appear only where the public source publishes them.
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, with contractor details where the record publishes them.
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