# Building permits at 598 Assembly Row, Somerville, MA

The biggest project within a quarter mile since May 1: a $25M alteration or repair at 188 Assembly Park, permitted Aug 18.

20 permits on record here. The newest, Sep 3: Replace 5 rtu's. Within a quarter mile, the city has issued 47 more permits (45 projects) since May 1.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Sep 3, 2026 | Electrical | replace 5 rtu's | $8,000 | [E26-001281](https://nearbypermits.com/somerville/permit/E26-001281/) |
| May 18, 2023 | Sign | Installation of exterior signage LEGO DISCOVERY CENTER | Not listed | [B23-000466](https://nearbypermits.com/somerville/permit/B23-000466/) |
| May 17, 2023 | Electrical | Wire an exterior sign B23-000466 | $1,000 | [E23-000781](https://nearbypermits.com/somerville/permit/E23-000781/) |
| Mar 17, 2023 | Electrical | Install Cat 6 datas for lazer maze | $20,000 | [E23-000393](https://nearbypermits.com/somerville/permit/E23-000393/) |
| Jan 30, 2023 | Electrical | Telecom, Speaker Cabling & Install, Surveillance Camera and Door Access Control Cabling Installation of devices under this permit to be performed by Electricians and technicians employed by the permit holder | $62,000 | [E23-000067](https://nearbypermits.com/somerville/permit/E23-000067/) |
| Nov 1, 2022 | Electrical | Low Voltage Cabling | $33,876 | [E22-001629](https://nearbypermits.com/somerville/permit/E22-001629/) |
| Sep 27, 2022 | Plumbing | 598 Assembly row: legoland: plumbing fixtures - 2nd floor | Not listed | [P22-000582](https://nearbypermits.com/somerville/permit/P22-000582/) |
| Aug 30, 2022 | Mechanical (HVAC) | Install ductwork for Legoland | $109,200 | [SM22-000154](https://nearbypermits.com/somerville/permit/SM22-000154/) |
| Aug 30, 2022 | Alteration or repair | Renovations on 2 levels at Legoland Discovery Center | $2,898,725 | [B22-001190](https://nearbypermits.com/somerville/permit/B22-001190/) |
| Aug 24, 2022 | Electrical | Install new lighting, fire alarm devices and power devices. Install new breakers in existing distribution panels. (B22-001190) | $300,000 | [E22-001260](https://nearbypermits.com/somerville/permit/E22-001260/) |
| Jul 21, 2022 | Electrical | Automatic Temperature Controls - Low Voltage | $15,000 | [E22-001098](https://nearbypermits.com/somerville/permit/E22-001098/) |
| Jun 15, 2018 | Electrical | Install (1) 50a 250v outlet | $2,000 | [E18-001031](https://nearbypermits.com/somerville/permit/E18-001031/) |
| Mar 9, 2018 | Mechanical (HVAC) | hvac install 2 new pieces of 10" spiral duct and 2 existing grilles | $750 | [SM18-000052](https://nearbypermits.com/somerville/permit/SM18-000052/) |
| Mar 6, 2018 | Alteration or repair | LEGOLand Cafe updates | $85,000 | [B18-000249](https://nearbypermits.com/somerville/permit/B18-000249/) |
| Feb 22, 2018 | Electrical | replacing 5 receptacles, adding 2 light fixtures, replacing additional light fixtures if needed | $1,000 | [E18-000278](https://nearbypermits.com/somerville/permit/E18-000278/) |
| Mar 29, 2016 | Electrical | wire a twist lock receptacle and support low voltage wires for a display | $800 | [E16-000444](https://nearbypermits.com/somerville/permit/E16-000444/) |
| Feb 25, 2016 | Electrical | install 7 to 10 duplex receptacles on 2 newly constructed walls | $1,500 | [E16-000250](https://nearbypermits.com/somerville/permit/E16-000250/) |
| Feb 22, 2016 | Alteration or repair | 1. modification of existing supply duct 2. supply material and labor | $4,201 | [SM16-000031](https://nearbypermits.com/somerville/permit/SM16-000031/) |
| Feb 17, 2016 | Alteration or repair | Install approx. 32 l.f. of wall at 25' high. All new partition walls will be blue-boarded and plastered on both sides. The existing partition wall that separates the display room to the back storage area will be blue-boarded and plastered on the bare side of the existing wall. HVAC work: Cut into ex | $21,027 | [B16-000054](https://nearbypermits.com/somerville/permit/B16-000054/) |
| Jun 3, 2014 | Electrical | Alarm system - legoland | $2,500 | [E14-000050](https://nearbypermits.com/somerville/permit/E14-000050/) |

## Within ¼ mi since May 1, 2026

47 permits in the circle. From our copy of the city's data (last 24 months).

### This block (250 to 1,000 ft), 23 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | [301 Assembly Row](https://nearbypermits.com/somerville/address/301-assembly-row/) | 910 ft SE | Other | To Erect a 30x130 Temporary Ten Tent on 10/2/26 Event on 10/6/26 Removed 10/8/26. Tent will have (4) 6' Exits w/illum. Exit Signs & Fire Extinguishers. | $7,500 | [B26-001550](https://nearbypermits.com/somerville/permit/B26-001550/) |
| Oct 5, 2026 | [133 Middlesex Ave](https://nearbypermits.com/somerville/address/133-middlesex-ave/) | 840 ft W | Other | To Erect a 40x100 Temporary Tent on 10/5/26 Event on 10/6/26 Removed 10/8/26. Tent will have (2) 6' Exits w/illum. Exit Signs & Fire Extinguishers. | $7,645 | [B26-001545](https://nearbypermits.com/somerville/permit/B26-001545/) |
| Sep 28, 2026 | [133 Middlesex Ave](https://nearbypermits.com/somerville/address/133-middlesex-ave/) | 840 ft W | Other | Rooftop Unit Replacement @ 105 Middlesex Ave | $93,010 | [SM26-000185](https://nearbypermits.com/somerville/permit/SM26-000185/) |
| Sep 28, 2026 | [449 Canal St](https://nearbypermits.com/somerville/address/449-canal-st/) | 410 ft SE | Electrical | BDA System Modification / Reconfiguration | $10,949 | [E26-001387](https://nearbypermits.com/somerville/permit/E26-001387/) |
| Sep 15, 2026 | [698 Assembly Row](https://nearbypermits.com/somerville/address/698-assembly-row/) | 350 ft N | Sign | Clients logo has changed from capital e to small e. The existing signs need to be changed over | Not listed | [B26-001086](https://nearbypermits.com/somerville/permit/B26-001086/) |
| Sep 11, 2026 | [445 Artisan Way](https://nearbypermits.com/somerville/address/445-artisan-way/) | 340 ft NE | Plumbing | Relocation of existing 4" cast iron sanitary stack. @ 450 Canal St | Not listed | [P26-000529](https://nearbypermits.com/somerville/permit/P26-000529/) |
| Sep 10, 2026 | [698 Assembly Row](https://nearbypermits.com/somerville/address/698-assembly-row/) | 350 ft N | Electrical | Wiring for 4 sign replacements | $2,600 | [E26-001107](https://nearbypermits.com/somerville/permit/E26-001107/) |
| Aug 19, 2026 | [300 Artisan Way](https://nearbypermits.com/somerville/address/300-artisan-way/) | 330 ft NW | Plumbing | Replace about 40ft of cast iron, reported being back pitch | Not listed | [P26-000375](https://nearbypermits.com/somerville/permit/P26-000375/) |
| Aug 3, 2026 | [301 Assembly Row](https://nearbypermits.com/somerville/address/301-assembly-row/) | 910 ft SE | Electrical | Remove (28) Speaker/Strobes on Balconies and box inside the unit with blank plates - Balconies being converted to Juliets. @ 485 Foley St | $4,809 | [E26-000913](https://nearbypermits.com/somerville/permit/E26-000913/) |
| Jul 14, 2026 | [301 Assembly Row](https://nearbypermits.com/somerville/address/301-assembly-row/) | 910 ft SE | Alteration or repair | Removal of 28 existing wood cantilevered balconies and installing new juliet railings. | $280,000 | [B26-000885](https://nearbypermits.com/somerville/permit/B26-000885/) |
| Jul 8, 2026 | [355 Artisan Way](https://nearbypermits.com/somerville/address/355-artisan-way/) | 350 ft N | Electrical | bond temporary generator to building steel. Work @ 395 artisan way | $1,000 | [E26-000961](https://nearbypermits.com/somerville/permit/E26-000961/) |
| Jul 7, 2026 | [445 Artisan Way](https://nearbypermits.com/somerville/address/445-artisan-way/) | 340 ft NE | Plumbing | Renovation of existing dog wash space to a new 2 piece bath, and kitchenette. Replacement of 3 existing kitchen sinks | Not listed | [P26-000384](https://nearbypermits.com/somerville/permit/P26-000384/) |
| Jul 7, 2026 | [445 Artisan Way](https://nearbypermits.com/somerville/address/445-artisan-way/) | 340 ft NE | Plumbing | Installation of gas piping for 3 new outdoor gas grills | Not listed | [G26-000318](https://nearbypermits.com/somerville/permit/G26-000318/) |
| Jun 30, 2026 | [445 Artisan Way](https://nearbypermits.com/somerville/address/445-artisan-way/) | 340 ft NE | Electrical | Remodel of common area's, 1st floor main Lobby, Lobby Mezzanine, Rear Elevator Lobby, Gym, Retainable Amenities Room, 2nd Floor Lounge. Relocate mail lockers, Relocate amazon lockers, relocate leasing office and break room. Install new lights and relocate receptacles in all area's. Relocate fire ala | $189,000 | [E26-000920](https://nearbypermits.com/somerville/permit/E26-000920/) |
| Jun 30, 2026 | [301 Assembly Row](https://nearbypermits.com/somerville/address/301-assembly-row/) | 910 ft SE | Electrical | Remove 28 receptacles on outside decks to be removed | $2,000 | [E26-000919](https://nearbypermits.com/somerville/permit/E26-000919/) |
| Jun 23, 2026 | [463 Assembly Row](https://nearbypermits.com/somerville/address/463-assembly-row/) | 410 ft SE | Electrical | Install sub panel to accommodate new kitchen circuits | $5,500 | [E26-000896](https://nearbypermits.com/somerville/permit/E26-000896/) |
| Jun 15, 2026 | [463 Assembly Row](https://nearbypermits.com/somerville/address/463-assembly-row/) | 410 ft SE | Plumbing | plumbing work installing new fixtures and running pipe for water and removing drains | Not listed | [P26-000331](https://nearbypermits.com/somerville/permit/P26-000331/) |
| Jun 12, 2026 | [463 Assembly Row](https://nearbypermits.com/somerville/address/463-assembly-row/) | 410 ft SE | Plumbing | Installing new gas fitting and piping | Not listed | [G26-000283](https://nearbypermits.com/somerville/permit/G26-000283/) |
| Jun 10, 2026 | [463 Assembly Row](https://nearbypermits.com/somerville/address/463-assembly-row/) | 410 ft SE | Electrical | POS & Hood Fan System | $4,000 | [E26-000829](https://nearbypermits.com/somerville/permit/E26-000829/) |
| Jun 8, 2026 | [463 Assembly Row](https://nearbypermits.com/somerville/address/463-assembly-row/) | 410 ft SE | Mechanical (HVAC) | Install commercial ventilation system,hood,fans, duct work | $102,000 | [SM26-000088](https://nearbypermits.com/somerville/permit/SM26-000088/) |
| Jun 4, 2026 | [463 Assembly Row](https://nearbypermits.com/somerville/address/463-assembly-row/) | 410 ft SE | Electrical | Relocate electrical for bar renovation WORK @ SALT & STONE Renovation & Repair from Fire Damage: Demo existing electrical as necessary and make safe, relocate existing circuits to provide power for table top receptacles Replace existing lighting as necessary due to fire damage, install new circuits  | $6,000 | [E26-000156](https://nearbypermits.com/somerville/permit/E26-000156/) |
| Jun 3, 2026 | [445 Artisan Way](https://nearbypermits.com/somerville/address/445-artisan-way/) | 340 ft NE | Alteration or repair | Amenities Renovations • Selective interior demolition of existing finishes, flooring, millwork, ceilings, lighting fixtures, mirrors, signage, and non load bearing elements for replacement in kind or cosmetic upgrade. • Replacement and refinishing of interior finishes, including flooring, wall f | $772,471 | [B26-000538](https://nearbypermits.com/somerville/permit/B26-000538/) |
| May 12, 2026 | [450 Artisan Way](https://nearbypermits.com/somerville/address/450-artisan-way/) | 410 ft NE | Electrical | Installation of 45 tel/data drops in existing space being renovated. This is a separate permit as we did not originally own this work | $18,000 | [E26-000368](https://nearbypermits.com/somerville/permit/E26-000368/) |

### Farther (1,000 ft to ¼ mi), 24 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 30, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Plumbing | Installation of one new electric water heater in ceiling to feed the floor, including domestic water, recirculation, relief, drain, and associated piping connections. Installation of new tenant plumbing fixtures, including domestic water, sanitary, vent, and specialty waste piping as required. Scope | Not listed | [P26-000567](https://nearbypermits.com/somerville/permit/P26-000567/) |
| Sep 21, 2026 | [399 Revolution Dr](https://nearbypermits.com/somerville/address/399-revolution-dr/) | 0.22 mi S | Electrical | Low Voltage Access Control Wiring | $13,500 | [E26-001374](https://nearbypermits.com/somerville/permit/E26-001374/) |
| Sep 15, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Electrical | F&I of new power, lighting, fire alram, tel/data and security infrastructure on Level 3. New power panels and transformers for electric room. Level 3 - Building Permit Application #B26-000877 | $750,000 | [E26-001352](https://nearbypermits.com/somerville/permit/E26-001352/) |
| Sep 15, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Electrical | F&I of new power, lighting, fire alram, tel/data and security infrastructure on Level 11. New power panels and transfs for electric room & (1) ATS. | $895,000 | [E26-001351](https://nearbypermits.com/somerville/permit/E26-001351/) |
| Sep 15, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Electrical | F&I of new power, lighting, fire alram, tel/data and security infrastructure on Level 10. New power panels and transformers for electric room. Level 10 - Building Permit Application #B26-001128 | $900,000 | [E26-001350](https://nearbypermits.com/somerville/permit/E26-001350/) |
| Sep 15, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Electrical | F&I of new power, lighting, fire alarm, tel/data and security infrastructure on Level 12. New power panels and transformers for electric room. Level 12 - Building Permit Application #B26-001071 | $950,000 | [E26-001342](https://nearbypermits.com/somerville/permit/E26-001342/) |
| Sep 8, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Electrical | F&I of power feeders, (1) added section to existing switchboard, (3) new panels, (3) ATS's in Penthouse, (2) on Level 10 and (1) on Level 3. Enabling - Building Permit Application #B26-000709 | $600,000 | [E26-001088](https://nearbypermits.com/somerville/permit/E26-001088/) |
| Sep 2, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Plumbing | Installation of one new electric water heater each on floors 11 and 12, including domestic water, recirculation, relief, drain, and associated piping. Installation of new tenant plumbing features on all floors, including domestic water, sanitary, vent, and specialty waste piping as required. Scope i | Not listed | [P26-000525](https://nearbypermits.com/somerville/permit/P26-000525/) |
| Aug 18, 2026 | [399 Revolution Dr](https://nearbypermits.com/somerville/address/399-revolution-dr/) | 0.22 mi S | Electrical | Install low voltage Cat6A data cabling for Goldman Lab 200 locations | $230,000 | [E26-001042](https://nearbypermits.com/somerville/permit/E26-001042/) |
| Aug 18, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Alteration or repair | This project includes the fit-out and related work for the tenth floor of the building. The program for this floor is office, command centers (open office), and associated support spaces. No occupancy classifications are changing from the original base building. Level 10 | $13,488,390 | [B26-001128](https://nearbypermits.com/somerville/permit/B26-001128/) |
| Aug 18, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Alteration or repair | This project includes the fit-out and related work for the eleventh and twelfth floor of the building. The main program for the eleventh and twelfth floor is office, with associated support spaces. No occupancy classifications are changing from the original base building. Level 12 | $25,450,547 | [B26-001071](https://nearbypermits.com/somerville/permit/B26-001071/) |
| Aug 18, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Alteration or repair | This project includes the fit-out and related work for the third floor of the building. The main program for the third floor is vivarium, office, and labs with assocaited support spaces. A new elevator is being provided from the dedicated loading dock on the first floor up to the third floor. The ex | $17,234,642 | [B26-000877](https://nearbypermits.com/somerville/permit/B26-000877/) |
| Jul 27, 2026 | [399 Revolution Dr](https://nearbypermits.com/somerville/address/399-revolution-dr/) | 0.22 mi S | Mechanical (HVAC) | Demo Existing ductwork and HVAC Equipment. Install new equipment and associated ductwork | $100,000 | [SM26-000098](https://nearbypermits.com/somerville/permit/SM26-000098/) |
| Jul 22, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Alteration or repair | This project includes the base building enabling work to accommodate future tenant improvements to all 12 floors of the existing building. Interior fit-out for individual floors to be submitted under separate cover. Work includes selective demolition, mechanical, electrical and plumbing modification | $9,801,881 | [B26-000709](https://nearbypermits.com/somerville/permit/B26-000709/) |
| Jul 20, 2026 | [399 Revolution Dr](https://nearbypermits.com/somerville/address/399-revolution-dr/) | 0.22 mi S | Electrical | Office/lab renovation on 3rd floor | $1,000 | [E26-001035](https://nearbypermits.com/somerville/permit/E26-001035/) |
| Jul 15, 2026 | [340 Grand Union Blvd](https://nearbypermits.com/somerville/address/340-grand-union-blvd/) | 0.22 mi S | Electrical | Meter only install by Eversource. Work was originally completed and inspected, no meter was ever installed. New tenant in space needs meter. | $500 | [E26-001008](https://nearbypermits.com/somerville/permit/E26-001008/) |
| Jun 23, 2026 | [188 Assembly Park Dr](https://nearbypermits.com/somerville/address/188-assembly-park-dr/) | 0.20 mi SW | Plumbing | tenant fit out for new core and shell building - other includes (5) eyewashes, (4) trench drains and (1) hose down station | Not listed | [P26-000356](https://nearbypermits.com/somerville/permit/P26-000356/) |
| Jun 23, 2026 | [188 Assembly Park Dr](https://nearbypermits.com/somerville/address/188-assembly-park-dr/) | 0.20 mi SW | Plumbing | tenant fit out for new core and shell building | Not listed | [P26-000355](https://nearbypermits.com/somerville/permit/P26-000355/) |
| Jun 1, 2026 | [188 Assembly Park](https://nearbypermits.com/somerville/address/188-assembly-park/) | 0.20 mi SW | Electrical | Electrical Demo permit | $2,000 | [E26-000761](https://nearbypermits.com/somerville/permit/E26-000761/) |
| May 18, 2026 | [399 Revolution Dr](https://nearbypermits.com/somerville/address/399-revolution-dr/) | 0.22 mi S | Plumbing | The installation of two new sinks and associated sanitary waste/vent with point-of-use water heaters. The scope will also include the installation of a new medical gas system consisting of laboratory compressed air, laboratory vacuum and oxygen. | Not listed | [P26-000290](https://nearbypermits.com/somerville/permit/P26-000290/) |
| May 11, 2026 | [335 Harold Cohen St](https://nearbypermits.com/somerville/address/335-harold-cohen-st/) | 0.23 mi S | Plumbing | Testing of Main Gas Line | Not listed | [G26-000236](https://nearbypermits.com/somerville/permit/G26-000236/) |
| May 7, 2026 | [399 Revolution Dr](https://nearbypermits.com/somerville/address/399-revolution-dr/) | 0.22 mi S | Electrical | MGB Assembly Row Goldman Lab Reno. MISC Low Voltage HVAC Control Wiring. JG 264175 | $31,575 | [E26-000644](https://nearbypermits.com/somerville/permit/E26-000644/) |
| May 5, 2026 | [335 Harold Cohen Dr](https://nearbypermits.com/somerville/address/335-harold-cohen-dr/) | 0.23 mi S | Mechanical (HVAC) | 3 exiting split, Install a ductwork, exhaust venting, gills | $60,500 | [SM26-000028](https://nearbypermits.com/somerville/permit/SM26-000028/) |
| May 4, 2026 | [399 Revolution Dr](https://nearbypermits.com/somerville/address/399-revolution-dr/) | 0.22 mi S | Alteration or repair | Removal of existing workstations on the 3rd. Fitout space with new demountable partitions and associated MEPs. | $3,057,363 | [B26-000517](https://nearbypermits.com/somerville/permit/B26-000517/) |

## More on this street

Other addresses on Assembly Row with permits, nearest house number first:

- [611 Assembly Row](https://nearbypermits.com/somerville/address/611-assembly-row/): newest permit Mar 24, 2025
- [661 Assembly Row](https://nearbypermits.com/somerville/address/661-assembly-row/): newest permit Jun 10, 2025
- [670 Assembly Row](https://nearbypermits.com/somerville/address/670-assembly-row/): newest permit Dec 6, 2024
- [698 Assembly Row](https://nearbypermits.com/somerville/address/698-assembly-row/): newest permit Sep 15, 2026
- [463 Assembly Row](https://nearbypermits.com/somerville/address/463-assembly-row/): newest permit Jun 23, 2026
- [400 Assembly Row](https://nearbypermits.com/somerville/address/400-assembly-row/): newest permit Nov 13, 2024
- [323 Assembly Row](https://nearbypermits.com/somerville/address/323-assembly-row/): newest permit Oct 31, 2024
- [301 Assembly Row](https://nearbypermits.com/somerville/address/301-assembly-row/): newest permit Oct 5, 2026

---
Source: Somerville Inspectional Services Division permit data (https://data.somervillema.gov/d/nneb-s3f7), SomerStat, City of Somerville, ODbL 1.0 (https://opendatacommons.org/licenses/odbl/1-0/). Checked 2026-10-06 20:33 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Contains information from Applications for Permits and Licenses (SomerStat, City of Somerville), which is made available here under the Open Database License (ODbL). Database: https://data.somervillema.gov/d/nneb-s3f7 License: https://opendatacommons.org/licenses/odbl/1-0/

Map, all 20 permits at this address and 47 nearby: https://nearbypermits.com/somerville/address/598-assembly-row/