Twin Rooftop Patios

Project Completion
November 2015

Cambridge, MA

Building Type
Mixed Use

Two sets of neighbors on the top floor of a mixed-use building were looking for increased access to the space outside their homes. Recover worked with both pairs to design a green roof that accommodates the needs of both families, creating a roof with two separate yet complementary sides. One side functions as a children’s playspace and vegetable garden, and the other functions as a leisure and entertainment space. A planter wall with tall perennial grasses creates privacy between the two spaces while maintaining a view of the cityscape from both sides. 

A lush lawn with naturally rot-resistant cedar raised beds and tall perennial grasses around the exterior wall creates the eastern playspace. Low-maintenance, flowering sedum with a locally sourced Goshen schist stepping-stone footpath distinguishes the western leisure space. Both sides feature paver patio hardscaping, mahogany trim caps, and vented benches covering the permanent roof equipment. 

Cambridge zoning ordinance article 22.33 made this project possible, forgiving a previously enforced floor area ratio limitation. Recover worked with the City of Cambridge to become the first-ever rooftop floor area ratio extension in the city.


Client Name
Private Clients

1,400 sq. ft.

Green Roof Design
Recover Green Roofs

General Contractor
Recover Green Roofs

Green Roof Installer
Recover Green Roofs

Hardscape Installer
Recover Green Roofs

Irrigation Installer
Recover Green Roofs

Extensive, Intensive

Plant Type(s)
Sedum, Perenial Grasses, Lawn Grasses, Vegetable

Green Roof Components
Conservation Technology

Waterproofing Membrane
Sika Sarnafil PVC

Soil Media Supplier
Read Custom Soils

Planter Manufacturer
Planters Unlimited