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
🔎 See for yourself — free: click any Reveal button to unmask up to 10 real contractor phone numbers. No account needed.

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
2026-09-03 Plumbing
Source type: PLUMBING
3204 81ST PL SE REPLACE 40 GAL WATER HEATER 40 gal water heater standard replacement Water heater FAST WATER HEATER CO
2026-09-03 Fire Protection
Source type: FIREPROTECTION
8005 SE 33RD PL Fire Alarm System Replacement Upgrade fire protection, fire… PYE-BARKER FIRE & SAFETY LLC
2026-09-03 Electrical
Source type: ELECTRICAL
6460 E MERCER WAY 1 Furnace - circuit SOUTH WEST PLMBG &WATER HTRS
2026-09-03 Electrical
Source type: ELECTRICAL
8246 E MERCER WAY 1 Security system (Low Voltage Only) low voltage ADT LLC
2026-09-02 General Construction
Source type: RIGHTOFWAY USE
6015 90TH AVE SE JOB# JB0002605038 - Delash/Relash Aerial Strand CANNON CONSTRUCTION INC
2026-09-02 Plumbing
Source type: RIGHTOFWAY USE
— JOB# 8112026 - CCTV Sewer Inspections line work HYDROMAX USA LLC
2026-09-02 Plumbing
Source type: RIGHTOFWAY USE
— Job# 8142026 - CCTV Sewer Inspections line work HYDROMAX USA LLC
2026-09-02 Electrical
Source type: ELECTRICAL
2804 67TH AVE SE 1 EV Charging Station, 3 Receptacle - circuit EV charger OBOT ELECTRIC LLC
2026-09-02 Electrical
Source type: ELECTRICAL
8235 SE 31ST ST 1 Switch - circuit EXODUS ELECTRICAL SERVICES LLC
2026-09-02 New Construction
Source type: TRANSP CONCURRENCY
2436 74TH AVE SE Short Plat, ADU, & Middle Housing Unit —
2026-09-02 General Construction
Source type: RIGHTOFWAY USE
— Wireless Equipment Replacement STEELHEAD COMMUNICATIONS INC
2026-09-02 General Construction
Source type: BUILDING
8071 W MERCER WAY Replace & relocate existing standby generator HAMISH ANDERSON CUSTOM HOMES - IA
2026-09-02 Fire Protection
Source type: FIREPROTECTION
8421 SE 68TH ST QFC SPRINKLER TI fire protection, spri… COSCO FIRE PROTECTION
2026-09-02 HVAC
Source type: MECHANICAL
4617 FOREST AVE SE 2 Furnace, 2 Heat Pump furnace, heat pump GREENWOOD HEATING &HOME SRVS
2026-09-02 Plumbing
Source type: PLUMBING
6147 92ND AVE SE 1 Hose Bib WASHINGTON ENERGY SVCS CO LLC
2026-09-02 HVAC
Source type: MECHANICAL
2045 FABEN DR T-stat Wiring, 2 Air Conditioner NORTHWEST MECHANICAL
2026-09-02 Electrical
Source type: ELECTRICAL
4617 FOREST AVE SE 2 Heat Pump - circuit GREENWOOD HEATING &HOME SRVS
2026-09-02 Electrical
Source type: ELECTRICAL
2464 61ST AVE SE 1 Air Conditioner - circuit IN CHARGE ELECTRIC LLC
2026-09-02 HVAC
Source type: MECHANICAL
7750 SE 29TH ST Install ducted split system heat pump with economizers heat pump New installation HVAC installation EMERALD AIRE INC
2026-09-02 General Construction
Source type: RIGHTOFWAY USE
2741 72ND AVE SE JOB# JB0002675536 - SIMPLE POLE TRANSFER CABLECOM LLC
2026-09-02 General Construction
Source type: BUILDING
7900 SE 28TH ST NEW FINISHES, PARTITIONS, ELEC & MECH FRANS CONSTRUCTION
2026-09-01 Electrical
Source type: ELECTRICAL
4852 E MERCER WAY 1 Air Conditioner - circuit HOME COMFORT ALLIANCE LLC
2026-09-01 HVAC
Source type: MECHANICAL
4852 E MERCER WAY T-stat Wiring, 1 Air Conditioner HOME COMFORT ALLIANCE LLC
2026-09-01 Electrical
Source type: ELECTRICAL
4661 FOREST AVE SE 44.88 kW Solar Rooftop System solar NORTHWEST ELECTRIC & SOLAR
2026-09-01 Demolition
Source type: BUILDING
8530 SE 79TH PL DEMO WALLS ON LOWER FLOOR Top Notch Builders
2026-09-01 General Construction
Source type: TRANSP CONCURRENCY
7633 SE 27TH ST INSTALL NEW WALK-UP NIGHT DROP DEPOSITORY ×2 —
2026-09-01 General Construction
Source type: SUBDIVISION
2436 74TH AVE SE 2-Lot Short Plat —
2026-09-01 General Construction
Source type: RIGHTOFWAY USE
9601 SE 36TH ST Job# 101204892 - Connect New City-Owned Services POTELCO INC
2026-08-31 HVAC
Source type: MECHANICAL
8038 SE 45TH ST 1 Air Conditioner, 1 Furnace, T-stat Wiring furnace HOME COMFORT ALLIANCE LLC
2026-08-31 Plumbing
Source type: SIDESEWER
3031 61ST AVE SE SIDESEWER RESCUE ROOTER
📞 (•••) •••-••••
2026-08-31 Electrical
Source type: ELECTRICAL
8038 SE 45TH ST 1 Air Conditioner, 1 Furnace HOME COMFORT ALLIANCE LLC
2026-08-31 HVAC
Source type: MECHANICAL
2464 61ST AVE SE 1 Furnace, 1 Heat Pump furnace, heat pump VARSITY HEATING &COOLING LLC
2026-08-31 Electrical
Source type: ELECTRICAL
7620 SE 34TH ST 1 Service Panel Change Out service panel replacement Panel service BOWIE ELECTRIC SERVICE, INC.
2026-08-31 Electrical
Source type: ELECTRICAL
3854 99TH AVE SE (1) 200 amp Panel, 15 Light Fixtures, 9 Outlets 200A Homeowner permit
2026-08-31 Plumbing
Source type: RIGHTOFWAY USE
4433 86TH AVE SE INSTALL WATER SERVICE -NO LANE CLOSURE line work New installation HIGGASON CONSTRUCTION
2026-08-31 General Construction
Source type: RIGHTOFWAY USE
4433 86TH AVE SE MATERIALS DELIVERY - NO LANE CLOSURE HIGGASON CONSTRUCTION
2026-08-31 Plumbing
Source type: SIDESEWER
6450 E MERCER WAY Alteration of Side Sewer Line line work DREAMHOUSE CONSTRUCTION
2026-08-31 General Construction
Source type: WATERSERVICE
4433 86TH AVE SE 1" METER AND SERVICE BRANCH, SUPPLY LINE METER TO HOUSE TBD* HIGGASON CONSTRUCTION
2026-08-31 Electrical
Source type: ELECTRICAL
7825 SE 63RD PL GARAGE LIGHTING Homeowner permit
2026-08-31 General Construction
Source type: BUILDING
4433 86TH AVE SE ADDITION OF 770sT GARAGE & 770 SQ FT PRIMARY SUITE 770 sf HIGGASON CONSTRUCTION
2026-08-31 Electrical
Source type: ELECTRICAL
9222 SE 46TH ST 1 Receptacle - circuit SEATOWN ELECTRIC HTG &AIRLLC
2026-08-31 Plumbing
Source type: PLUMBING
5270 FOREST AVE SE 1 Water Heater - Gas Mechanical gas Water heater FAST WATER HEATER COMPANY
2026-08-28 Electrical
Source type: ELECTRICAL
2830 80TH AVE SE Job# 86322 - Repair/Rplc Ceiling Lights in Training Room COCHRAN INC.
2026-08-28 Fire Protection
Source type: FIREPROTECTION
4802 E MERCER WAY Residential Fire Alarm System fire protection, fire… ISLAND SECURITY SYSTEMS INC
2026-08-28 Plumbing
Source type: PLUMBING
9057 E SHOREWOOD DR Remove/Replace 38gal Water Heater 38 gal water heater standard replacement Water heater FAST WATER HEATER CO
2026-08-28 Fire Protection
Source type: FIREPROTECTION
8661 SE 60TH ST NFPA 13D Residential Sprinkler System fire protection, spri… CASCADIA FIRE PROTECTION LLC
2026-08-28 HVAC
Source type: MECHANICAL
6811 E MERCER WAY 2 Gas Piping Outlets, Gas Piping Only GEORGE GAS PIPING LLC
2026-08-28 Demolition
Source type: DEMO
8280 SE 82ND ST DEMO FIRE DAMAGED HOME TO FOUNDATION SCHULTZ MILLER INC
2026-08-28 Plumbing
Source type: PLUMBING
8280 SE 82ND ST CAP WATER SUPPLY BEHIND METER SCHULTZ MILLER INC
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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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