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Rare East Groton Colonial with 5,400 sq ft of flexible living space, including a town-approved in-law / ADU with private entrance. Ideal for multi-generational living, extended guests, rental income, remote work, or long-term household flexibility, the home offers connection and privacy minutes to Route 495. The main home features 4 bedrooms, 2.5 baths, vaulted living room with loft, open dining, granite kitchen, center island, walk-in pantry, mudroom, private office, spacious primary suite with en suite bath and walk-in closet, 2nd floor laundry, and oversized family room. The attached first-floor ADU feels like its own single-level residence with 1 bedroom, 1.5 baths, renovated kitchen and bath, dining/living spaces, and connecting mudroom. Outside features a professionally landscaped .93-acre yard, composite wraparound deck, paver patio, hot tub, oversized 2-car garage, and generous parking

More Info

Basic Information

  • Bedrooms5
  • Mls StatusUnder Agreement
  • Bathroom5
  • Contingency Financing
  • Lot Features Gentle Sloping
  • Parcel Number 519136

Basic Information

  • List Price$1,195,000
  • MLS Number73522582
  • Modification Date06/28/2026
  • Property SubTypeSingle Family Residence
  • PurchaseContractDate06/14/2026

Building

  • Attached Garage YN Yes
  • Basement
    • Bulkhead
    • Concrete
    • Interior Entry
    • Partial
    • Sump Pump
    • 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, Icemaker Connection
  • Window Features Insulated Windows
  • Year Built1953
  • Year Built Details Actual, Renovated Since
  • Year Built Source Public Records

Other

  • Date Listed05/21/2026
  • Farm Land Area Units Square Feet
  • View Count1

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

Exterior

  • Exterior Features Deck - Composite, Patio, 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 Private Sewer
  • Water Source Public

Amenities

  • Amenities
    • Bike Path
    • Conservation Area
    • Golf
    • Highway Access
    • House of Worship
    • Medical Facility
    • Park
    • Private School
    • Public School
    • Public Transportation
    • Shopping
    • Stable(s)
    • 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, Stainless Steel Appliance(s), Plumbed For Ice Maker
  • 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
    • Workshop in Garage

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
    • Vinyl
    • Wood
  • Interior Features
    • 3/4 Bath
    • Bathroom - 3/4
    • Bathroom - Tiled With Shower Stall
    • Closet - Linen
    • Countertops - Stone/Granite/Solid
    • Countertops - Upgraded
    • Den
    • Finish - Sheetrock
    • Home Office
    • Kitchen
    • Lighting - Overhead
    • Lighting - Pendant
    • Living/Dining Rm Combo
    • Open Floorplan
    • Recessed Lighting
    • Sauna/Steam/Hot Tub
    • 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 Updated/Remodeled, Remodeled

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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