# Building permits at 91 Sprague St, Boston, MA 10 permits on record here. The newest, Nov 21, 2025: Replace 4 Roof Top Units. Within a quarter mile, the city has issued 1 more permit since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Nov 21, 2025 | Plumbing | Replace 4 Roof Top Units. 600,000 Btus | $4,995 | [G1799115](https://nearbypermits.com/boston/permit/G1799115/) | | Nov 17, 2025 | Roofing | Remove and properly dispose of existing stone ballast and EPDM membrane. Mechanically attach (2) layers of 2" polyISO insulation over the existing 1.5" polyISO to wood plank deck for total R-30. Install induction weld TPO roof system. | $393,500 | [SF1794223](https://nearbypermits.com/boston/permit/SF1794223/) | | Dec 18, 2012 | Electrical | Adding 1 400 amp meter 3 phase and service panel to divide exsisting tenant space. No new loads. | $20,000 | [E207399](https://nearbypermits.com/boston/permit/E207399/) | | Nov 10, 2010 | Plumbing | gas remodeling | $8,000 | [G51286](https://nearbypermits.com/boston/permit/G51286/) | | Oct 25, 2010 | Plumbing | gas piping to 4 rooftop units | $5,000 | [G48511](https://nearbypermits.com/boston/permit/G48511/) | | Oct 4, 2010 | Electrical | alter existing fire alarm for new tenant space Sky Zone | $6,200 | [EFA45401](https://nearbypermits.com/boston/permit/EFA45401/) | | Oct 4, 2010 | Electrical | tenant fit out for Sky Zone | $25,000 | [E45400](https://nearbypermits.com/boston/permit/E45400/) | | Sep 29, 2010 | Electrical | Install (32) light fixtures and relocate (11) light fixtures | $6,000 | [E44767](https://nearbypermits.com/boston/permit/E44767/) | | Sep 22, 2010 | Plumbing | Renovation | $42,290 | [PL43521](https://nearbypermits.com/boston/permit/PL43521/) | | Sep 8, 2010 | Electrical | service upgrade from 800 amp three phase to twelve hundred amps three phase | $14,000 | [E41706](https://nearbypermits.com/boston/permit/E41706/) | ## Within ΒΌ mi since May 1, 2026 1 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Jun 26, 2026 | [49 Industrial Dr](https://nearbypermits.com/boston/address/49-industrial-dr/) | 820 ft N | Electrical | Install temporary feed to (2) exterior office trailers- 60AMP feed | $6,200 | [E1864717](https://nearbypermits.com/boston/permit/E1864717/) | --- Source: Boston Inspectional Services Department permit data (https://data.boston.gov/dataset/approved-building-permits). Checked 2026-10-05 19:52 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, all 10 permits at this address and 1 nearby: https://nearbypermits.com/boston/address/91-sprague-st/