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Reimagined in 2005, this expansive 5,400 sq ft Colonial with town approved in law / ADU offers exceptional multi-generational living in prime East Groton, minutes to Route 495. Designed for connection and privacy, the main home features 4 bedrooms and 2.5 baths, anchored by a dramatic vaulted living room, open dining area, and granite kitchen with center island and walk-in pantry. Upstairs includes a spacious primary suite with private office, walk-in closet and en suite bath, plus three additional bedrooms, full bath, laundry and oversized family room. A private 1st floor single level in-law addition features a separate entrance, 1 bedroom, 1.5 baths, renovated kitchen and bath, and inviting dining and living spaces. A mud/entry room between the homes enhances separation and flexibility. Outdoor space features a composite wraparound deck, paver patio, hot tub, professionally landscaped .93 acre yard, 30x60' turf pad, oversized 2-car garage and generous driveway.

More Info

Basic Information

  • Bedrooms5
  • Mls StatusContingent
  • Bathroom5
  • Contingency Financing
  • Lot Features Wooded
  • Parcel Number 519136

Basic Information

  • List Price$1,189,000
  • MLS Number73477679
  • Modification Date05/04/2026
  • Property SubTypeSingle Family Residence
  • PurchaseContractDate05/03/2026
  • Virtual TourView Tour

Building

  • Attached Garage YN Yes
  • BasementFull, Interior Entry, Bulkhead, Concrete, Unfinished
  • Building Area Units Square Feet
  • Construction Materials Frame
  • Door Features Insulated Doors
  • FoundationConcrete Perimeter
  • Garage Spaces2
  • Patio And Porch Features Deck - Composite, Patio
  • Property StyleColonial
  • Rooms11
  • Utilities For Electric Range, For Electric Oven, For Electric Dryer, Washer Hookup
  • Window Features Insulated Windows
  • Year Built1953
  • Year Built Details Renovated Since
  • Year Built Source Public Records

Other

  • Date Listed02/17/2026
  • Farm Land Area Units Square Feet
  • Spa Features Private
  • View Count4

Tax Information

  • Tax Assessed Value $1,016,300
  • Tax Year 2026
  • Taxes$15,427

Rooms

  • Bathroom 1 Second,10 x 10
  • Bathroom 2 Second,8 x 8
  • Bathroom 3 First
  • Bathrooms Total Decimal 4
  • Bedroom 2 Second,15 x 10
  • Bedroom 3 Second,14 x 10
  • Bedroom 4 Second,19 x 11
  • Bedroom 5 First,12 x 11
  • Dining Room First,16 x 11
  • Family Room Second,28 x 27
  • Full Bath3
  • Half Baths2
  • Kitchen First,13 x 11
  • Living Room Main, First,24 x 20
  • Master Bedroom Second,25
  • Office Second,8 x 8

Exterior

  • Exterior Features Deck - Composite, Patio, Hot Tub/Spa, Storage, Professional Landscaping
  • RoofShingle

Utilities

  • Cooling Central Air
  • Cooling YN Yes
  • Electric 110 Volts, Circuit Breakers,200+ Amp Service
  • Heat SystemYes
  • Heating Central, Forced Air, Oil
  • Sewer Inspection Required for Sale, Private Sewer
  • Water Source Public

Amenities

  • Amenities
    • Bike Path
    • Conservation Area
    • Highway Access
    • Private School
    • Public School
    • Public Transportation
    • Shopping
    • Walk/Jog Trails
  • Appliances IncludedElectric Water Heater, Trash Compactor, Microwave, ENERGY STAR Qualified Refrigerator, ENERGY STAR Qualified Dryer, ENERGY STAR Qualified Dishwasher, ENERGY STAR Qualified Washer, Range
  • Green Energy Efficient Thermostat

Parking

  • Parking Spaces12
  • Covered Spaces 2
  • Garage YN Yes
  • Open Parking YN Yes
  • Parking Features
    • Attached
    • Garage Door Opener
    • Off Street
    • Oversized
    • Paved
    • Paved Drive
    • Storage

Location

  • NeighborhoodEast Groton
  • SubdivisionEast Groton
  • Address15 Gilson Road
  • Building Number15
  • CountyMiddlesex
  • StateMA
  • StreetGilson Road
  • TownGroton
  • Zip01450

Property

  • Acreage0.93

Interior

  • Flooring
    • Carpet
    • Flooring - Hardwood
    • Flooring - Stone/Ceramic Tile
    • Flooring - Wall to Wall Carpet
    • Hardwood
    • Tile
  • Interior Features
    • Bathroom
    • Bathroom - Full
    • Bathroom - Tiled With Shower Stall
    • Countertops - Stone/Granite/Solid
    • Den
    • Dining Area
    • Home Office
    • Kitchen
    • Lighting - Overhead
    • Lighting - Sconce
    • Living/Dining Rm Combo
    • Open Floorplan
    • Peninsula
    • Recessed Lighting
    • Slider
    • Study

Property Information

  • Square Feet5,376
  • Building Area Source Public Records
  • Living Area 5,376
  • Lot Size Square Feet 40,510
  • Lot Size Units Acres
  • Property Condition Remodeled
  • Spa YN Yes

Map Location

Listed by Heidi Vaughan of Barrett Sotheby's International Realty

The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. (MLSPIN) from third party sources, including sellers, lessors and public records, and were compiled by MLSPIN. The property listing data and information, and the Images, are for the personal, non-commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLSPIN and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the Images, set forth herein.

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