Form Follows Forest: A Tree Driven Urban Design for Charlestown, MA

Form Follows Forest is a landscape-led urban design proposal for Charlestown, Massachusetts, that reframes redevelopment through the lens of the urban forest. Addressing heat islands, flooding, and car-dominated infrastructure, the project replaces impervious surfaces with interconnected coastal, wetland, and upland forests that manage stormwater, cool the city, and support biodiversity. Buildings, streets, and public spaces are organized around continuous soil and canopy systems. Adding 2,500 housing units while de-paving 70 acres, the proposal aligns density with ecological performance. Phased over time, it transforms infrastructure into living systems, creating a resilient, climate-adaptive urban forest.

Form Follows Forest is a landscape-led urban design proposal for the Charlestown neighborhood of Boston, Massachusetts that reframes redevelopment through the lens of the urban forest. The project begins with an analysis of existing conditions along the Rutherford Avenue corridor—an area defined by low housing density, car-oriented infrastructure, extensive impervious surfaces, a lack of green space and canopy, urban heat island, and both inland and coastal flood risk. Mapping these factors reveals a landscape where conventional urban form amplifies climate vulnerability.

In response, the project establishes the urban forest as primary infrastructure, overturning conventional urban design by prioritizing landscape systems over built form. Instead of inserting trees into leftover space, it establishes a continuous urban forest first, and then organizes infrastructure, housing, and circulation around it. This framework directly addresses climate change by reducing ambient temperatures through shade and evapotranspiration, while also managing stormwater through infiltration, storage, and filtration. Formerly impervious areas are de-paved and regraded to create forested swales, a floodable meadow, and subsurface water storage systems, including the adaptive reuse of existing underpasses on Rutherford Avenue as stormwater infrastructure. Coastal, upland, and wetland forest types are matched to existing and desired urban conditions.

The planning strategy integrates resilience at multiple scales. At the district level, forest corridors form a cohesive ecological network that manage stormwater and support biodiversity. At the site scale, soil continuity is prioritized through techniques such as suspended paving and elevated walkways, ensuring long-term tree health and maximizing ecological function. At the building scale, massing and orientation are coordinated with forest growth patterns, allowing solar access for vegetation while shading streets and reducing heat gain.

Sustainability is embedded through both environmental performance and land use planning. The proposal accommodates approximately 2,500 new housing units, increasing density while simultaneously converting over 70 acres of land to permeable forest. This dual approach challenges the assumption that urban growth and ecological restoration are mutually exclusive. Instead, it demonstrates how compact development can coexist with, and even depend upon, high-functioning landscape systems. Rather than the typical "3-30-300" urban forestry rule, Form Follows Forest uses the 50-50-50 rule; residents can see 50 trees from their home, their block has at least 50% canopy coverage, and they are no more than 50 feet from the closest green space.

A phased implementation strategy guides the transition from present conditions to a long-term vision extending to 2060. Early phases establish a tree nursery, flood protection, and infrastructural retrofits, allowing ecological systems to establish before full build-out. Later phases introduce mixed-use development aligned with the evolving forest structure.

Ultimately, Form Follows Forest advances a planning framework in which climate adaptation, resilience, and sustainability are not layered onto the city but fundamentally shape it. By positioning the forest as both driver and organizer of urban form, the project offers a replicable model for transforming vulnerable, car-dominated landscapes into resilient, climate-responsive urban environments.