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
2026-07-02 Plumbing
Source type: SIDESEWER
4332 86TH AVE SE SIDESEWER DISCONNECT EB#5 LLC, None
2026-07-02 HVAC
Source type: MECHANICAL
2262 78TH AVE SE 1 Air Handler, 1 Heat Pump, 1 gas piping only heat pump MAYSTER HEATING &AIR
2026-07-02 Demolition
Source type: DEMO
2740 61ST AVE SE DEMO SFR TO REBUILD LNL BUILDS LLC
2026-07-02 Electrical
Source type: ELECTRICAL
4332 86TH AVE SE TEMPORARY POWER EB#5 LLC, None
2026-07-01 Electrical
Source type: ELECTRICAL
2939 76TH AVE SE Replace 100 amp Panel 100A replacement ×2 NORTH LAKE ELECTRIC LLC
2026-07-01 Electrical
Source type: ELECTRICAL
3220 72ND AVE SE 3 Receptacle - circuit AS YOU WISH ELECTRIC
📞 (•••) •••-••••
2026-07-01 Electrical
Source type: ELECTRICAL
3230 73RD AVE SE 1 Air Conditioner - circuit ANM ELECTRIC INC
2026-07-01 Plumbing
Source type: PLUMBING
9756 SE 40TH ST (1) Irrigation Backflow Device Le's Landscaping & Construction
2026-07-01 General Construction
Source type: TREE
4222 SHORECLUB DR REMOVE 3 TREES - Rplc w/ 11 Trees HITMAN TREE LLC
2026-07-01 Electrical
Source type: ELECTRICAL
2947 76TH AVE SE Replace 100 amp Panel 100A replacement NORTH LAKE ELECTRIC LLC
2026-07-01 Electrical
Source type: RIGHTOFWAY USE
3952 GALLAGHER HILL RD JOB# 104376909 - Install Conduit Riser & Connect Service Cab POTELCO INC
2026-07-01 General Construction
Source type: RIGHTOFWAY USE
VARIOUS Stormwater Installations in the ROW PNW HEAVY CIVIL CONSTRUCTION LLC
2026-07-01 Landscaping & Exterior
Source type: RIGHTOFWAY USE
VARIOUS ASPHALT OVERLAYING WORK LAKESIDE INDUSTRIES
2026-07-01 Electrical
Source type: ELECTRICAL
8421 SE 68TH ST (3) Heat Pumps, (1) Portable Refrigerator BOYER ELECTRIC COMPANY INC
2026-07-01 Electrical
Source type: RIGHTOFWAY USE
3003 80TH AVE SE JOB# 101202587 - Install Replacement Conduit & Cables replacement POTELCO INC
2026-07-01 General Construction
Source type: TREE
7920 SE 72ND PL REMOVE 1 HAZARD TREE EASTSIDE TREE WORKS LLC
2026-07-01 Electrical
Source type: ELECTRICAL
3059 ISLAND CREST WAY (1) 100 amp Feeder, (1) Dryer Circuit 100A BOYER ELECTRIC COMPANY INC
2026-07-01 General Construction
Source type: RIGHTOFWAY USE
4328 E MERCER WAY Equipment Telecomm Repairs to Pole QUANTAM CONTRACTING
2026-07-01 HVAC
Source type: MECHANICAL
6353 84TH AVE SE 1 Heat Pump heat pump ALL CLIMATE HEATING &A/C
2026-07-01 Electrical
Source type: ELECTRICAL
6353 84TH AVE SE 1 Heat Pump - circuit ALL CLIMATE HEATING &A/C
2026-07-01 General Construction
Source type: TREE
4170 BOULEVARD PL REOMVE 1 TREE & Rplc w/ 2 Trees Seattle Tree Care (TREECYCLE LLC)
2026-07-01 Plumbing
Source type: PLUMBING
2247 82ND AVE SE 1 Gas Piping Outlets - Plum Homeowner permit
2026-06-30 Electrical
Source type: ELECTRICAL
3818 83RD AVE SE 1Panel, 8Kitchen circuits, 1Smoke Detector 1 panels NW ELECTRICAL LLC
2026-06-30 HVAC
Source type: MECHANICAL
3887 W MERCER WAY 1 Boiler or Compressor 100,001 to 399,000 BTU 399,000 BTU PREMIER MECH AND ELECTRIC LLC
2026-06-30 Electrical
Source type: ELECTRICAL
2242 72ND AVE SE 1 Heat Pump - circuit ALWAYS CURRENT ELECTRIC INC
2026-06-30 HVAC
Source type: MECHANICAL
8413 SE 53RD PL T-stat Wiring, 1 Heat Pump heat pump NORTHWEST MECHANICAL
2026-06-30 Plumbing
Source type: PLUMBING
6541 82ND AVE SE 1 Water Heater - Gas Mechanical gas FAST WATER HEATER COMPANY
2026-06-29 Electrical
Source type: ELECTRICAL
2719 63RD AVE SE 1 Heat Pump - circuit GENE JOHNSN PLB HTG CL ELC LLC
2026-06-29 HVAC
Source type: MECHANICAL
4832 E MERCER WAY MECHANICAL ART GAS PIPING LLC
2026-06-29 HVAC
Source type: MECHANICAL
7223 E MERCER WAY 1 Air Conditioner WASHINGTON ENERGY SVCS CO LLC
2026-06-29 Electrical
Source type: ELECTRICAL
7920 SE 72ND PL 1 Pool, Hot Tub, Spa or Sauna - Outdoor AWE LLC
2026-06-29 Electrical
Source type: ELECTRICAL
8117 MERRIMOUNT DR 1 Heat Pump - circuit WASHINGTON ENERGY SVCS CO LLC
2026-06-29 Electrical
Source type: ELECTRICAL
7223 E MERCER WAY 1 Air Conditioner - circuit WASHINGTON ENERGY SVCS CO LLC
2026-06-29 Electrical
Source type: ELECTRICAL
7525 SE 24TH ST 1 Security system (Low Voltage Only) low voltage PROTECTION &COMMUNICATNS INC
2026-06-29 Electrical
Source type: ELECTRICAL
8244 SE 30TH ST 1 Security system (Low Voltage Only) low voltage ADT LLC
2026-06-29 Plumbing
Source type: PLUMBING
3911 GREENBRIER LN PLUMBING FAST WATER HEATER COMPANY
2026-06-29 Plumbing
Source type: PLUMBING
4215 87TH AVE SE 1 Toilet, 1 Sink, 1 Shower, Tub or Combo Homeowner permit
2026-06-29 Electrical
Source type: ELECTRICAL
8636 SE 75TH PL 1 EV Charging Station EV charger Homeowner permit
2026-06-27 Plumbing
Source type: PLUMBING
6114 90TH AVE SE PLUMBING WASHINGTON ENERGY SVCS CO LLC
2026-06-27 Electrical
Source type: ELECTRICAL
6114 90TH AVE SE ELECTRICAL WASHINGTON ENERGY SVCS CO LLC
2026-06-27 HVAC
Source type: MECHANICAL
6114 90TH AVE SE MECHANICAL WASHINGTON ENERGY SVCS CO LLC
2026-06-26 Electrical
Source type: ELECTRICAL
6518 SE 28TH ST ELECTRICAL KEMLY ELECTRIC INC
2026-06-26 Electrical
Source type: ELECTRICAL
6610 E MERCER WAY ELECTRICAL AUTOMATED EQUIPMENT CO INC
2026-06-26 Electrical
Source type: ELECTRICAL
6034 SE 22ND ST ELECTRICAL ADT LLC
2026-06-26 Electrical
Source type: ELECTRICAL
3208 89TH PL SE ELECTRICAL WASHINGTON ENERGY SVCS CO LLC
2026-06-25 HVAC
Source type: MECHANICAL
2242 72ND AVE SE MECHANICAL BETTER AIR NW HEATING/CLNG LLC
2026-06-25 HVAC
Source type: MECHANICAL
2719 63RD AVE SE MECHANICAL GENE JOHNSN PLB HTG CL ELC LLC
2026-06-25 HVAC
Source type: MECHANICAL
8117 MERRIMOUNT DR MECHANICAL BOB'S HEATING &AIR CNDTNG LLC
2026-06-24 Plumbing
Source type: PLUMBING
7272 92ND AVE SE PLUMBING - Toilet, 3 Sink, 2 Shower, Tub or Combo, 3 Hose Bi RED CEDAR PLBG &DRAIN CLN 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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