# Mechanical (HVAC) permit SM25-000199 at 121 Prospect St, Somerville

Somerville Inspectional Services Division permit SM25-000199: issued Sep 9, 2025 for mechanical (hvac) work at 121 Prospect St. Install client supplied heat pump systems and central ERV as per mechanical plans.

- Permit number: SM25-000199
- Issued: Sep 9, 2025
- Type of work: Mechanical (HVAC) (city: Sheet Metal Permit, Residential)
- Status: Issued (city: Issued)
- Reported cost: $364,000
- ZIP code: Not listed
- All permits at this address: https://nearbypermits.com/somerville/address/121-prospect-st/

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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 2026-10-08 04:09 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/

Every permit at 121 Prospect St: https://nearbypermits.com/somerville/address/121-prospect-st/