155 North Beacon St./Image courtesy of Ellenzweig

The largest community benefits agreement to support arts and culture in Boston history is the price that a lab developer will pay to replace Brighton’s Sound Museum with a life science campus.

Boston Planning and Development Agency directors approved IQHQ’s redevelopment of 155 North Beacon St., a three-building life science campus totaling 409,395 square feet, after the developer agreed to donate a recently-acquired building as a replacement music rehearsal studio.

In December, IQHQ acquired a commercial building at 290 North Beacon St. for $18 million, which it will donate to the city. The BPDA and Mayor’s Office of Arts and Culture will issue a request for proposals to renovate the 290 Beacon St. into affordable rehearsal space.

Local musicians protested the displacement of the affordable rehearsal spaces last winter, and another developer offered musicians temporary space on Morrissey Boulevard after the Sound Museum was evicted from 155 North Beacon St.

The community benefits agreement also includes IQHQ’s commitment to construct new lab classrooms for Brighton High School STEM programs and upgrades to pedestrian and bicycle infrastructure around the development site. Linkage payments total $4 million, including $3.9 million toward a city fund dedicated for affordable housing.

The Brighton lab complex was among 1.3 million square feet of development projects approved Thursday, including an office-to-lab conversion at Downtown Crossing and a new life science project in the Raymond L. Flynn Marine Park.

Phase 3 Partners received approval to convert an office building at 55 Summer St. into nearly 115,000 square feet of life science space. Community benefits include $500,000 in updates to the plaza at the corner of Chauncy Street.

In the South Boston marine park, a joint venture of Related Beal, Kavanagh Advisory Group and BREIF Fund plan to redevelop a city-owned site at 22 Drydock Ave. into nearly 320,000 square feet of office and lab space. The project will include classroom space for new satellite campus for the Gloucester Marine Genomics Institute.

Another early-stage life science project in the marine park passed a hurdle with the board’s tentative designation of a development team for the BPDA-owned parcel U at 7 Channel St. Lincoln Property Co. and Quaker Lane Capital are proposing a 9-story office-lab building including life science training space and a 2-story firehouse.

Housing projects approved at the June board meeting total 123 units, including 41 income-restricted units.

Windale Developers’ Phase 4 of the Garrison Trotter housing project will create 23 single-family and two-family homes, including 16 income-restricted units, on a BPDA-owned parcel at Hollworthy and Hollander Streets in Roxbury.

In Allston, developers Milad and Mani Farahani received approval for a 33-unit apartment building at 521-523 Cambridge St., replacing a small office building and auto repair garage.

In Dorchester, developer Travis Lee received approval for a two-building, 22-unit condo project built to Passive House standards at 114-122 Harvard St. and 18-24 Standish St. All of the units will be income-restricted at 80 to 100 percent of area median income.

And in South Boston, the board approved developer Joe Hassell’s proposal for a 45-unit apartment building at 34 B St., replacing an auto body shop and vacant lot.

Directors also approved contracts with Matrix Consulting Group and Archipelago Strategies Group totaling $1.75 million to advise the BPDA on updates to its Article 80 development review process, part of Mayor Michelle Wu’s reform efforts.