COMPANY RECORD · SEATTLE, WA
Acco Engineered Systems — permit history in Seattle, WA
Acco Engineered Systems appears on 366 Seattle permit records from 2017 through 2026, most often mechanical / hvac (82.2% of the record).
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 301 | 82.2% |
| Electrical | 65 | 17.8% |
2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.
Activity by year
| Year | Permits issued |
|---|---|
| 2017 | 9 |
| 2018 | 17 |
| 2019 | 44 |
| 2020 | 58 |
| 2021 | 37 |
| 2022 | 40 |
| 2023 | 59 |
| 2024 | 33 |
| 2025 | 36 |
| 2026 | 33 |
Busiest year on record: 2023, with 59 permits. One project can account for several filings, so read this as filing activity rather than workload.
PROJECTS AHEAD SEARCH
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This page is a snapshot of Acco Engineered Systems. The search behind it holds more than 400,977 Seattle permits naming a contractor, since 2015: 251,769 electrical permits, 143,940 mechanical (HVAC) permits, 5,268 fire protection permits.
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Where they worked
| Address in source | Most recent permit |
|---|---|
| 83 S KING ST | 2026-10-28 |
| 1700 7TH AVE | 2026-10-28 |
| 601 UNION ST | 2026-10-05 |
| 2709 3RD AVE | 2026-09-29 |
| 1926 6TH AVE S | 2026-09-22 |
| 909 5TH AVE | 2026-09-18 |
| 719 2ND AVE | 2026-09-17 |
| 311 CEDAR ST | 2026-08-12 |
| 1111 13TH AVE | 2026-06-08 |
| 3801 S ALASKA ST | 2026-05-28 |
| 5200 DENVER AVE S | 2026-05-26 |
| 5427 OHIO AVE S | 2026-05-15 |
| 1550 N 115TH ST | 2026-05-14 |
| 300 5TH AVE | 2026-05-14 |
147 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $1,200,000, median $10,000. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Also named on permits at the same addresses
| Company | Shared addresses | Years |
|---|---|---|
| Prime Electric | 31 | 2015–2026 |
| Titan Electric Inc | 29 | 2015–2026 |
| Ec Electric | 27 | 2015–2026 |
| Datskiy Electric LLC | 24 | 2018–2026 |
| Cochran Inc | 24 | 2017–2026 |
| Veca Electric & Technologies, LLC | 23 | 2015–2026 |
| Mckinstry Co LLC | 15 | 2015–2026 |
| Sequoyah Electric LLC | 15 | 2015–2026 |
Companies that also appear in Seattle permit records at addresses where Acco Engineered Systems filed, in any year. Sharing an address is a documented co-appearance, not proof that they worked on the same project or with each other.
Permits on record
366 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 7160073-ME | 2026-10-28 | Mechanical / HVAC | 83 S KING ST | Alterations to mechanical system on existing commercial building, per plans. | $120,000 |
| 7162657-ME | 2026-10-28 | Mechanical / HVAC | 1700 7TH AVE | Replace all fan powered boxes with electric heat, like-for-like. Install (2) new fan powered boxes with electric heat. Install new exhaust fans to serve break rooms, server rooms, | $269,000 |
| 7167458-RF | 2026-10-15 | Mechanical / HVAC | 83 S KING ST | Provide and install (2) new outdoor condenser units, indoor fan coil units, and associated refrigerant piping. | $3,000 |
| 7160071-ME | 2026-10-14 | Mechanical / HVAC | 83 S KING ST | Add new VAVs and relocate existing VAVs per mechanical plan. Modify ductwork and existing air distribution to meet requirements of new office architecture. Add new exhaust fan to s | $200,000 |
| 7163685-ME | 2026-10-08 | Mechanical / HVAC | 83 S KING ST | Demolish and replace GRDs STFI (Subject to Field Inspection) | $15,000 |
| 7161079-ME | 2026-10-05 | Mechanical / HVAC | 601 UNION ST | Modify existing ductwork and new VAV box, per plan. | $15,000 |
| 7164450-RF | 2026-09-29 | Mechanical / HVAC | 2709 3RD AVE | Installing (1) new condensing unit & cooling coil in an AHU and associated refrigerant lines. | $35,000 |
| 7164454-EL | 2026-09-25 | Electrical | 2709 3RD AVE | Installing (2) new thermostats for (2) new AHUs. | |
| 7161394-BP | 2026-09-22 | Mechanical / HVAC | 1926 6TH AVE S | Install new 600gal buffer tank | $3,000 |
| 7163314-RF | 2026-09-18 | Mechanical / HVAC | 909 5TH AVE | Demolish and replace (2) ducted heat pump split-systems with new ductless splits. Mechanical scope is subject to field inspection. Replacement is like-for-like. New refrigerant lin | $10,000 |
| 7161808-ME | 2026-09-17 | Mechanical / HVAC | 719 2ND AVE | MODIFYING DUCTWORK & ADDING/RELOCATING DIFFUSERS INSTALLING (1) NEW TRANSFER FAN. Subject to Field Inspection - STFI | $10,000 |
| 7160022-ME | 2026-09-15 | Mechanical / HVAC | 601 UNION ST | OFFICE TI: - VAV RELOCATES - VAV INSTALLS - TRANSFER BOOTS AS NEEDED - (1) WSHP - (1) TRANSFER FAN | $146,000 |
| 7162624-EL | 2026-09-15 | Electrical | 719 2ND AVE | Relocation of (3) thermostats | |
| 7145846-ME | 2026-08-31 | Mechanical / HVAC | 1926 6TH AVE S | New process chilled water system. New supplemental RTU to serve lab space. Process equipment venting. New compressed air distribution from existing plant per plans | $412,000 |
| 7157181-BP | 2026-08-12 | Mechanical / HVAC | 311 CEDAR ST | Applying for a pressure vessel permit for un-permitted replacement of a failing expansion tank. | $3,200 |
| 7129168-ME | 2026-06-08 | Mechanical / HVAC | 1111 13TH AVE | Replace (9) rooftop gas/electric package units with new package rooftop heat pumps. Replace (4) rooftop exhaust fans in kind. Replace (1) kitchen grease exhaust fan in kind. Rep | $215,000 |
| 7145091-RF | 2026-05-28 | Mechanical / HVAC | 3801 S ALASKA ST | Replacement of (2) existing split systems serving VZW telecom room. Indoor and outdoor units. | $5,000 |
| 7136689-ME | 2026-05-27 | Mechanical / HVAC | 3801 S ALASKA ST | (2) Like-for-like split system replacements. | $35,000 |
| 7144827-RF | 2026-05-26 | Mechanical / HVAC | 5200 DENVER AVE S | Assist with installation and startup of new walk-in cooler system: To be completed after new walk-in cooler system is in place (equipment installed by others): o Install intercon | $10,556 |
| 7143405-RF | 2026-05-15 | Mechanical / HVAC | 5427 OHIO AVE S | Install (2) sets of refrigerant lines to serve (2) replacement split-system AC units. AC units installed under permit # 7136686-ME. | $1,000 |
| 7142518-RF | 2026-05-14 | Mechanical / HVAC | 1550 N 115TH ST | THE EXISTING SPLIT-SYSTEM (OUTDOOR CONDENSING UNIT ON A-WING 2ND FLOOR ROOF AND INDOOR FAN COIL UNIT) SERVING EQUIPMENT ROOM A100.10 WILL BE REPLACED WITH A LIKE-FOR-LIKE UNIT. | $25,000 |
| 7143264-EL | 2026-05-14 | Electrical | 300 5TH AVE | RELOCATE 16 EXISTING THERMOSTATS. INSTALL 1 NEW THERMOSTAT. | |
| 7143357-EL | 2026-05-14 | Electrical | 901 5TH AVE | Relocate (1) thermostat | |
| 7136686-ME | 2026-05-13 | Mechanical / HVAC | 5427 OHIO AVE S | Replace (2) like-for-like ductless split systems, per plan. | $15,000 |
| 7139703-BP | 2026-04-23 | Mechanical / HVAC | 1737 AIRPORT WAY S | Installing new air receiver. | $45,000 |
| 7135243-RF | 2026-03-26 | Mechanical / HVAC | 1800 9TH AVE | (2) 7.5 ton 1-to-1 split systems; (1) 5 ton 1-to-1 split system; (1) 5-ton VRF split system with (5) indoor fan coil units. | $10,000 |
| 7128530-ME | 2026-03-17 | Mechanical / HVAC | 909 5TH AVE | Like-for-like replacement of a 4-ton WSHP. Subject to Field Inspection (STFI) | $6,500 |
| 7124564-ME | 2026-02-17 | Mechanical / HVAC | 12351 30TH AVE NE | Replace (2) 5-ton SPVAC units with (2) new 3-ton SPVAC units; like-for-like, per plans. | $23,500 |
| 7127550-ME | 2026-02-11 | Mechanical / HVAC | 6050 EAST MARGINAL WAY S | Connect (N) process equipment to (E) gas piping system. Install (E) new exhaust ducts, routed to building exterior. Modify (E) compressed air system to connect (N) process equipmen | $33,400 |
| 7128193-ME | 2026-02-09 | Mechanical / HVAC | 720 2ND AVE | Replace an exhaust fan in the women's restroom on the 3rd floor of UWKC - Subject to Field Inspection (STFI) | $1,500 |
| 7128192-ME | 2026-02-09 | Mechanical / HVAC | 720 2ND AVE | Replace an exhaust fan in the women's restroom on the 2nd level of UWKC - Subject to Field Inspection (STFI) | $1,500 |
| 7128190-ME | 2026-02-09 | Mechanical / HVAC | 720 2ND AVE | Replace an exhaust fan in the bathroom of the women's restroom on the basement level of UWKC - Subject to Field Inspection (STFI) | $1,500 |
| 7123420-ME | 2026-02-03 | Mechanical / HVAC | 720 2ND AVE | Demo and replace (4) WSHP. Re-route ducting to match per plans. | $20,000 |
| 7118006-ME | 2025-12-01 | Mechanical / HVAC | 901 5TH AVE | 1. Relocate (1) VAV box; 2. Add (1) New VAV box with Electric Heat; 3. Grilles, ducts, and diffusers per plan. | $21,640 |
| 7116282-ME | 2025-11-20 | Mechanical / HVAC | 901 5TH AVE | Provide and install HVAC system, per plan | $36,000 |
| 7117812-EL | 2025-11-20 | Electrical | 1737 AIRPORT WAY S | Low Voltage for 1 thermostat. | $500 |
| 7116012-ME | 2025-11-19 | Mechanical / HVAC | 1737 AIRPORT WAY S | Alterations to mechanical system on existing commercial building, per plans. | $15,000 |
| 7115060-EL | 2025-11-04 | Electrical | 901 5TH AVE | Low Voltage permit for 4 t-stats | $1,000 |
| 7113272-RF | 2025-10-23 | Mechanical / HVAC | 2001 6TH AVE | relocate 2 existing DX Fan Coil units in elevator machine room. mechanical permit 7107331-ME | $1,000 |
| 7112851-EL | 2025-10-21 | Electrical | 8200 WALLINGFORD AVE N | Extending the wiring for control valves on hydronic baseboard heaters | $200 |
| 7108200-ME | 2025-10-01 | Mechanical / HVAC | 83 S KING ST | Office TI involving 1 new VAV box, 2 new transfer fans, VAV rebalancing, and duct/diffuser revisions. per plans | $39,170 |
| 7096847-ME | 2025-09-25 | Mechanical / HVAC | 2001 6TH AVE | Replacement of (5) cooling tower cells with (2) 2-cell towers on roof. Replacement of (4) condenser water pumps. Demo of (1) plate-and-frame heat exchanger. Install of (2) new plat | $1,000,000 |
| 7104518-EL | 2025-09-02 | Electrical | 401 UNION ST | install (1) new thermostats | $1,500 |
| 7104047-EL | 2025-08-28 | Electrical | 901 5TH AVE | Low voltage permit for T-stats | $500 |
| 7101712-ME | 2025-08-19 | Mechanical / HVAC | 901 5TH AVE | Relocate grilles and diffusers - Subject to Field Inspection (STFI) | $2,450 |
| 7101000-ME | 2025-08-14 | Mechanical / HVAC | 601 UNION ST | Small office TI involving relocation of 1 VAV, installation of 1 VAV, installation of 1 WSHP to serve server room, installation of 1 transfer fan to serve break room, and alteratio | $45,259 |
| 7101736-EL | 2025-08-14 | Electrical | 601 UNION ST | install (1) new tstat connected to WSHP | $100 |
| 7099654-EL | 2025-08-01 | Electrical | 720 2ND AVE | Disconnect/Reconnect WSHPs like for like replacement. 7/31/26 sk renewal | $10,000 |
| 7098421-ME | 2025-07-31 | Mechanical / HVAC | 411 1ST AVE S | Add / Relocate grilles - Subject to Field Inspection (STFI) | $5,000 |
| 7098426-EL | 2025-07-25 | Electrical | 411 1ST AVE S | Relocate (1) Thermostat. Install (1) Wall-Mount CO2 Sensor. | $500 |
Fields appear as the issuing authority published them, including spelling and blanks. Scope text is the applicant's description of intended work, not an inspection finding.
Source and limits
Public Seattle permit records through 2026, counted by distinct permit number. This is a historical filing record: it cannot show current backlog, pricing, crew availability, licensing or insurance, and a quiet period may only mean work was filed elsewhere. Confirm anything commercial with the company and with the issuing authority before acting. How we build these records, and what we withhold →
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