Weston MA
Real Estate

Is Weston served by town water or private wells?

Both exist, but most Weston homes are served by the town water system. Weston’s Water Division supplies water purchased from the Massachusetts Water Resources Authority (MWRA). A smaller number of properties use private wells.

Buyers should verify the water source for the specific property rather than assume service based on location.

Does Weston have public sewer service?

Weston does not have a municipal sanitary sewer system for residential properties. Residential wastewater is handled through private on-site septic systems.

Buyers should review available septic records, approved design capacity, system age and location, and the results of any required Title 5 inspection.

What are the Title 5 inspection rules when buying or selling a Weston home?

Under Title 5 (310 CMR 15.000), the Massachusetts septic regulation administered by MassDEP, an inspection is generally required within two years before the transfer of title for most properties served by a septic system.

If the system has been pumped annually and the required records are available, the inspection may remain valid for up to three years. Limited exceptions apply, including certain inter-family transfers and cases where weather prevents an inspection before closing.

How transaction-related costs are handled can also depend on the purchase agreement and other applicable requirements.

Is natural gas available throughout Weston?

National Grid is the natural-gas utility identified by the Town of Weston, but buyers should verify service to the specific property rather than assume every street can be connected.

Homes without natural-gas service may use oil, propane, electric, or heat-pump systems.

Does a large lot mean all of the acreage is usable?

No. A large parcel can still have meaningful development constraints. Zoning setbacks and frontage, the location of the existing septic system and reserve area, wetlands and buffer zones, topography, easements, conservation restrictions, and flood-hazard areas can all affect what portion of a lot is realistically usable.

Buyers considering significant work should confirm site conditions with the appropriate town department and qualified professionals.

Why are so many Weston lots large?

Weston’s Housing Production Plan reports that just over 70% of the town’s total zoned land area is Residence A, where the minimum lot size is 60,000 square feet—or approximately 1.38 acres. That low-density zoning helps explain why large residential lots are such a defining feature of Weston.

Weston also has Residence B, C, and D residential districts with different lot, frontage, and setback requirements. For the current dimensional standards, see the Town of Weston’s official zoning requirements.

I want to add a bedroom, addition, pool, or ADU. What should I check first?

Start with the property’s zoning, septic records, wetlands information, and site plan.

Septic systems are designed around approved design flow, which for single-family homes is closely tied to bedroom count. An additional bedroom or change in use can trigger septic requirements. Additions and pools can also be affected by setbacks, septic components and reserve areas, wetlands, grading, and other site constraints.

Do not rely solely on the bedroom count or acreage shown in a real estate listing when evaluating future expansion.

How can wetlands and conservation rules affect a Weston property?

Weston requires Conservation Commission review for many activities proposed within 100 feet of wetlands, ponds, or intermittent streams and within 200 feet of perennial streams. Weston also applies a 25-foot “No Disturb” buffer zone in relevant areas.

Work such as building, grading, filling, landscaping, and even certain tree removal can require review when it falls within regulated areas.