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.
Under contract
Price cut: $60K (4/23)
$1,189,000
15 Gilson Rd, Groton, MA 01450
5beds
5,376sqft
Est.:
Single Family Residence
Built in 1953
0.93 Acres Lot
$1,156,200 Zestimate®
$221/sqft
$-- HOA
What's special
Composite wraparound deckPaver patioHot tubOversized family roomOpen dining areaEn suite bathWalk-in pantry
- 86 days |
- 824 |
- 48 |
Zillow last checked:
Listing updated:
Listed by:
Heidi Vaughan 508-878-1589,
Barrett Sotheby's International Realty 978-692-6141,
Heidi Vaughan 508-878-1589
Source: MLS PIN,MLS#: 73477679
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 5
- Full bathrooms: 3
- 1/2 bathrooms: 2
Primary bedroom
- Features: Bathroom - Full, Bathroom - Double Vanity/Sink, Vaulted Ceiling(s), Walk-In Closet(s), Closet/Cabinets - Custom Built, Flooring - Wall to Wall Carpet, Double Vanity, Dressing Room, Remodeled, Lighting - Overhead
- Level: Second
- Area: 375
- Dimensions: 25 x 15
Bedroom 2
- Features: Flooring - Wall to Wall Carpet, Remodeled, Closet - Double
- Level: Second
- Area: 150
- Dimensions: 15 x 10
Bedroom 3
- Features: Flooring - Wall to Wall Carpet, Remodeled, Lighting - Overhead, Closet - Double
- Level: Second
- Area: 140
- Dimensions: 14 x 10
Bedroom 4
- Features: Flooring - Wall to Wall Carpet, Remodeled, Lighting - Overhead, Closet - Double
- Level: Second
- Area: 209
- Dimensions: 19 x 11
Bedroom 5
- Level: First
- Area: 132
- Dimensions: 12 x 11
Primary bathroom
- Features: Yes
Bathroom 1
- Features: Bathroom - Full, Bathroom - Double Vanity/Sink, Bathroom - Tiled With Shower Stall, Bathroom - With Tub, Skylight, Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Jacuzzi / Whirlpool Soaking Tub, Bidet, Double Vanity, Paints & Finishes - Low VOC, Recessed Lighting, Remodeled, Soaking Tub
- Level: Second
- Area: 100
- Dimensions: 10 x 10
Bathroom 2
- Features: Bathroom - Full, Bathroom - With Tub & Shower, Closet - Linen, Flooring - Stone/Ceramic Tile, Enclosed Shower - Fiberglass, Remodeled, Lighting - Sconce
- Level: Second
- Area: 64
- Dimensions: 8 x 8
Bathroom 3
- Features: Bathroom - Half, Flooring - Hardwood, Lighting - Sconce, Pedestal Sink
- Level: First
Dining room
- Features: Flooring - Hardwood, Window(s) - Bay/Bow/Box, Open Floorplan, Remodeled, Lighting - Overhead, Window Seat
- Level: First
- Area: 176
- Dimensions: 16 x 11
Family room
- Features: Vaulted Ceiling(s), Flooring - Wall to Wall Carpet, Open Floorplan, Remodeled
- Level: Second
- Area: 756
- Dimensions: 28 x 27
Kitchen
- Features: Vaulted Ceiling(s), Flooring - Hardwood, Dining Area, Pantry, Countertops - Stone/Granite/Solid, Kitchen Island, Open Floorplan, Stainless Steel Appliances, Storage, Lighting - Overhead
- Level: First
- Area: 143
- Dimensions: 13 x 11
Living room
- Features: Skylight, Cathedral Ceiling(s), Closet/Cabinets - Custom Built, Flooring - Wall to Wall Carpet, Window(s) - Picture, Balcony / Deck, Deck - Exterior, Exterior Access, Open Floorplan, Paints & Finishes - Low VOC, Recessed Lighting, Remodeled, Slider
- Level: Main,First
- Area: 480
- Dimensions: 24 x 20
Office
- Features: Flooring - Wall to Wall Carpet, Lighting - Overhead
- Level: Second
- Area: 64
- Dimensions: 8 x 8
Heating
- Central, Forced Air, Oil
Cooling
- Central Air
Appliances
- Included: Electric Water Heater, Trash Compactor, Microwave, ENERGY STAR Qualified Refrigerator, ENERGY STAR Qualified Dryer, ENERGY STAR Qualified Dishwasher, ENERGY STAR Qualified Washer, Range
- Laundry: Flooring - Vinyl, Electric Dryer Hookup, Washer Hookup, Lighting - Overhead, Second Floor
Features
- Lighting - Overhead, Countertops - Stone/Granite/Solid, Open Floorplan, Recessed Lighting, Peninsula, Bathroom - Full, Bathroom - Tiled With Shower Stall, Lighting - Sconce, Slider, Dining Area, Home Office, Kitchen, Bathroom, Study, Den, Living/Dining Rm Combo
- Flooring: Tile, Carpet, Hardwood, Flooring - Wall to Wall Carpet, Flooring - Stone/Ceramic Tile, Flooring - Hardwood
- Doors: Insulated Doors
- Windows: Insulated Windows
- Basement: Full,Interior Entry,Bulkhead,Concrete,Unfinished
- Has fireplace: No
Interior area
- Total structure area: 5,376
- Total interior livable area: 5,376 sqft
- Finished area above ground: 5,376
- Finished area below ground: 0
Video & virtual tour
Property
Parking
- Total spaces: 12
- Parking features: Attached, Garage Door Opener, Storage, Oversized, Paved Drive, Off Street, Paved
- Attached garage spaces: 2
- Uncovered spaces: 10
Features
- Patio & porch: Deck - Composite, Patio
- Exterior features: Deck - Composite, Patio, Hot Tub/Spa, Storage, Professional Landscaping
- Has spa: Yes
- Spa features: Private
Lot
- Size: 0.93 Acres
- Features: Wooded
Details
- Parcel number: 519136
- Zoning: RA
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence
Materials
- Frame
- Foundation: Concrete Perimeter
- Roof: Shingle
Condition
- Remodeled
- Year built: 1953
Utilities & green energy
- Electric: 110 Volts, Circuit Breakers, 200+ Amp Service
- Sewer: Inspection Required for Sale, Private Sewer
- Water: Public
- Utilities for property: for Electric Range, for Electric Oven, for Electric Dryer, Washer Hookup
Green energy
- Energy efficient items: Thermostat
Community & HOA
Community
- Features: Public Transportation, Shopping, Walk/Jog Trails, Bike Path, Conservation Area, Highway Access, Private School, Public School
HOA
- Has HOA: No
Location
- Region: Groton
Financial & listing details
- Price per square foot: $221/sqft
- Tax assessed value: $1,016,300
- Annual tax amount: $15,427
- Date on market: 2/17/2026
- Exclusions: Washer/Dryer Negotiable. Tvs In Lr, Fr And Primary & Refrigerators In Bsmt And Garage Excluded
Estimated market value
$1,156,200
$1.10M - $1.21M
$6,974/mo
Price history
| Date | Event | Price |
|---|---|---|
| 5/4/2026 | Contingent | $1,189,000$221/sqft |
Source: MLS PIN #73477679 Report a problem | ||
| 4/23/2026 | Price change | $1,189,000-4.8%$221/sqft |
Source: MLS PIN #73477679 Report a problem | ||
| 4/12/2026 | Price change | $1,249,000-3.8%$232/sqft |
Source: MLS PIN #73477679 Report a problem | ||
| 2/17/2026 | Listed for sale | $1,299,000+282.1%$242/sqft |
Source: MLS PIN #73477679 Report a problem | ||
| 5/11/2004 | Sold | $340,000$63/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $15,340 +1.8% | $1,005,900 +0.7% |
| 2024 | $15,069 +4.7% | $998,600 +8.5% |
| 2023 | $14,397 +11.6% | $920,500 +22.7% |
| 2022 | $12,898 +6.8% | $750,300 +9.4% |
| 2021 | $12,072 +8.5% | $685,900 +7.1% |
| 2020 | $11,127 +12.3% | $640,200 +17% |
| 2019 | $9,912 -4% | $547,300 -1% |
| 2018 | $10,321 +2.2% | $552,800 |
| 2017 | $10,094 +0.7% | $552,800 +3.6% |
| 2016 | $10,025 +2.8% | $533,800 |
| 2015 | $9,753 +5.1% | $533,800 |
| 2014 | $9,277 +3.2% | $533,800 +0% |
| 2013 | $8,993 +3.8% | $533,700 -1% |
| 2012 | $8,666 -1.8% | $538,900 |
| 2011 | $8,827 -4.1% | $538,900 -7.6% |
| 2010 | $9,206 +8.4% | $583,400 -1.6% |
| 2009 | $8,492 +3.2% | $593,000 |
| 2008 | $8,225 -3.7% | $593,000 -4.4% |
| 2007 | $8,540 +123.2% | $620,200 +129.6% |
| 2006 | $3,827 +2.4% | $270,100 |
| 2005 | $3,738 +14.5% | $270,100 +27.7% |
| 2004 | $3,266 +8.5% | $211,500 |
| 2003 | $3,010 +3.4% | $211,500 +40.4% |
| 2001 | $2,911 +13.8% | $150,600 +7.3% |
| 1998 | $2,558 | $140,400 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
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Climate risks
Neighborhood: 01450
Nearby schools
GreatSchools rating
- 8/10Florence Roche SchoolGrades: K-4Distance: 4.6 mi
- 7/10Groton Dunstable Regional Middle SchoolGrades: 5-8Distance: 4.6 mi
- 9/10Groton-Dunstable Regional High SchoolGrades: 9-12Distance: 5.4 mi
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- Massachusetts
- Middlesex County
- Groton
- 01450
- 15 Gilson Rd
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