For sale

Price cut: $4K (6/10)

$1,195,000

15 Gilson Rd, Groton, MA 01450

5beds

5,376sqft

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Single Family Residence

Built in 1953

0.93 Acres Lot

$1,162,000 Zestimate^®

$222/sqft

$-- HOA

What's special

Composite wraparound deckPaver patioHot tubOversized family roomGranite kitchenOpen diningPrivate office

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 Seller is offering $25,000 buyer credit toward closing costs and/or interest rate buydown

24 days

753

14

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Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 5
Bathrooms: 5
Full bathrooms: 3
1/2 bathrooms: 2
Main level bedrooms: 1

Primary bedroom

Features: Bathroom - Full, Bathroom - Double Vanity/Sink, Ceiling Fan(s), Vaulted Ceiling(s), Walk-In Closet(s), Flooring - Wall to Wall Carpet, Window(s) - Picture, Recessed Lighting, Remodeled, Lighting - Overhead
Level: Second
Area: 375
Dimensions: 25 x 15

Bedroom 2

Features: Flooring - Wall to Wall Carpet, Remodeled, Lighting - Overhead, 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

Features: Walk-In Closet(s), Flooring - Hardwood, Flooring - Wall to Wall Carpet, Lighting - Overhead
Level: Main,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 - Tiled With Tub, Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Countertops - Upgraded, Jacuzzi / Whirlpool Soaking Tub, Double Vanity, Recessed Lighting, Remodeled, Soaking Tub
Level: Second
Area: 100
Dimensions: 10 x 10

Bathroom 2

Features: Bathroom - Full, Bathroom - With Tub & Shower, Closet - Linen, Enclosed Shower - Fiberglass, Recessed Lighting, Remodeled, Lighting - Overhead
Level: Second
Area: 64
Dimensions: 8 x 8

Dining room

Features: Flooring - Hardwood, Open Floorplan, Remodeled, Lighting - Pendant, Window Seat
Level: First
Area: 176
Dimensions: 16 x 11

Family room

Features: Ceiling Fan(s), Flooring - Wall to Wall Carpet, Exterior Access, Open Floorplan, Remodeled, Lighting - Overhead
Level: Second
Area: 756
Dimensions: 28 x 27

Kitchen

Features: Skylight, Vaulted Ceiling(s), Flooring - Hardwood, Dining Area, Countertops - Stone/Granite/Solid, Kitchen Island, Cabinets - Upgraded, Open Floorplan, Recessed Lighting, Remodeled, Stainless Steel Appliances, Lighting - Overhead
Level: Main,First
Area: 143
Dimensions: 13 x 11

Living room

Features: Cathedral Ceiling(s), Flooring - Wall to Wall Carpet, Window(s) - Picture, Balcony / Deck, Exterior Access, Open Floorplan, Recessed Lighting, Remodeled, Slider, Window Seat
Level: Main,First
Area: 480
Dimensions: 24 x 20

Office

Features: Flooring - Wall to Wall Carpet, Remodeled, 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, Stainless Steel Appliance(s), Plumbed For Ice Maker
Laundry: Flooring - Vinyl, Electric Dryer Hookup, Washer Hookup, Lighting - Overhead, Second Floor

Features

Lighting - Overhead, Countertops - Stone/Granite/Solid, Countertops - Upgraded, Open Floorplan, Recessed Lighting, Lighting - Pendant, Bathroom - 3/4, Bathroom - Tiled With Shower Stall, Closet - Linen, Slider, Home Office, Kitchen, 3/4 Bath, Study, Den, Living/Dining Rm Combo, Sauna/Steam/Hot Tub, Finish - Sheetrock
Flooring: Wood, Tile, Vinyl, Carpet, Hardwood, Flooring - Wall to Wall Carpet, Flooring - Stone/Ceramic Tile, Flooring - Hardwood
Doors: Insulated Doors
Windows: Insulated Windows
Basement: Partial,Interior Entry,Bulkhead,Sump Pump,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

Property

Parking

Total spaces: 12
Parking features: Attached, Garage Door Opener, Storage, Workshop in Garage, Oversized, Paved Drive, Off Street, Paved
Attached garage spaces: 2
Uncovered spaces: 10

Accessibility

Accessibility features: No

Features

Patio & porch: Deck - Composite, Patio
Exterior features: Deck - Composite, Patio, Storage, Professional Landscaping

Lot

Size: 0.93 Acres
Features: Gentle Sloping

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

Updated/Remodeled,Remodeled
Year built: 1953

Utilities & green energy

Electric: 110 Volts, Circuit Breakers, 200+ Amp Service
Sewer: Private Sewer
Water: Public
Utilities for property: for Electric Range, for Electric Oven, for Electric Dryer, Washer Hookup, Icemaker Connection

Green energy

Energy efficient items: Thermostat

Community & HOA

Community

Features: Public Transportation, Shopping, Park, Walk/Jog Trails, Stable(s), Golf, Medical Facility, Bike Path, Conservation Area, Highway Access, House of Worship, Private School, Public School
Subdivision: East Groton

HOA

Has HOA: No

Location

Region: Groton

Financial & listing details

Price per square foot: $222/sqft
Tax assessed value: $1,016,300
Annual tax amount: $15,427
Date on market: 5/21/2026
Exclusions: Tvs In Lr, Fr And Primary & Fridges In Bsmt And Garage Excluded. W/D In Main House Negotiable

Estimated market value

$1,162,000

$1.10M - $1.22M

$6,896/mo

Price history

Date	Event	Price
6/10/2026	Price change	$1,195,000-0.3%$222/sqft
Source: MLS PIN #73522582 Report a problem
5/21/2026	Listed for sale	$1,199,000+4.4%$223/sqft
Source: MLS PIN #73522582 Report a problem
5/21/2026	Listing removed	$1,149,000$214/sqft
Source: MLS PIN #73477679 Report a problem
5/16/2026	Listed for sale	$1,149,000-3.4%$214/sqft
Source: MLS PIN #73477679 Report a problem
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

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HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.

Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.

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