Landscaping in Somerville, Massachusetts

Landscaping is outside Mass Save's scope, but Somerville has a few site factors that drive most projects. Limited green space means installers focus on hardscape, vertical planting, and clever use of small footprints — fence-line vines, espaliered fruit trees, and container gardens often substitute for traditional bed plantings. Mature street tree canopy means most front gardens get deep shade for much of the day, and shade-tolerant ground cover commonly replaces traditional lawn.

The city has a tree preservation ordinance that protects significant trees on private property, with removal requiring city review. Wetland buffers come up along the Mystic River and Alewife Brook on the city edges and trigger the Wetlands Protection Act and Conservation Commission review for work within 100 feet. The urban heat island makes Somerville solidly Zone 6b, and historic soil deposition means most installers recommend raised beds with imported clean soil for vegetable gardens. Tick exposure is minimal in the dense core but real for properties bordering the Mystic Lakes or Alewife Brook reservation.

Routine maintenance and small planting work don't need a Somerville permit. The city has a tree preservation ordinance — removal of significant trees on private property generally requires city review, often with a hearing and possible replacement requirements. Work within 100 feet of the Mystic River or Alewife Brook needs a Notice of Intent with the Somerville Conservation Commission. Retaining walls over four feet require a building permit and engineer-stamped plans through Inspectional Services. Pools are rare given lot sizes but always need a permit and four-foot fencing. Public shade trees are protected and handled by the city forester.

Somerville pricing tracks close to Cambridge and Boston levels, sometimes higher because of access constraints. Weekly maintenance on a small Somerville lot lands $50-$85, with spring cleanups in the $250-$700 range and fall cleanups higher because of street tree leaf load. A 200-square-foot bluestone or brick patio in Spring Hill or Winter Hill typically lands $11,000-$18,000. Full design-build projects involving small-garden design, fence-line work, and lighting commonly run $20,000 to $60,000 depending on scope. Material carry-through is often the largest cost driver — many projects need wheelbarrow access through narrow side passages or alleys.

Somerville is the densest city in the United States — about 81,000 residents across just over four square miles. That density defines every landscape conversation here. Most single-family and two-family lots in Davis Square, Ball Square, Union Square, East Somerville, Spring Hill, and Winter Hill have backyards under 1,500 square feet, and many properties are essentially yardless after the driveway and a side walk.

Soils are urban fill over the original clay loam of the Mystic and Charles drainage. Mature street tree canopy along streets like College Avenue, Highland Avenue, and Powderhouse Boulevard creates heavy root competition and significant shade. Most landscape work in Somerville is small-garden design, hardscape installation, and street-tree pit improvement rather than traditional lawn care. The 1880-1920 triple-decker and two-family housing stock that defines most of the city often has original granite curb pieces, brick walks, and small fence-enclosed front gardens that owners want to preserve or upgrade.