For sale

$1,195,000

20 Emerald St, Tyngsboro, MA 01879

4beds

3,418sqft

$7,594/mo

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Single Family Residence

Built in 2000

0.86 Acres Lot

$1,164,400 Zestimate^®

$350/sqft

$-- HOA

What's special

Inviting family roomFormal dining roomThree generously sized bedroomsSpacious eat-in kitchenBrand-new roof

Welcome to 20 Emerald Street, a beautifully maintained colonial set on a private 0.86-acre lot in one of Tyngsboro's most desirable neighborhoods! Offering over 3,400 square feet of living space, this exceptional home combines timeless design, flexible living arrangements, and outstanding value. The main residence features a spacious eat-in kitchen, formal dining room, inviting family room, sunroom, and three generously sized bedrooms. A rare highlight is the fully legal accessory dwelling unit with its own private entrance, full kitchen, and full bath—ideal for multigenerational living, extended family, guests, a caregiver, or potential rental income. Recent improvements include a brand-new roof. The landscaped yard offers ample space for recreation and entertaining. Conveniently located near schools, shopping, restaurants, major commuter routes, and tax-free New Hampshire, this unique property delivers the space, flexibility, and lifestyle you are looking for, don't miss it!

71 days
731
29

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 4
Bathrooms: 4
Full bathrooms: 3
1/2 bathrooms: 1

Primary bedroom

Level: Second
Area: 224
Dimensions: 16 x 14

Bedroom 2

Level: Second
Area: 154
Dimensions: 14 x 11

Bedroom 3

Level: Second
Area: 154
Dimensions: 14 x 11

Dining room

Level: First
Area: 168
Dimensions: 14 x 12

Family room

Level: First
Area: 552
Dimensions: 23 x 24

Kitchen

Level: First
Area: 325
Dimensions: 25 x 13

Office

Level: First
Area: 168
Dimensions: 14 x 12

Heating

Forced Air, Natural Gas

Cooling

Central Air

Appliances

Included: Gas Water Heater, Oven, Dishwasher
Laundry: Gas Dryer Hookup, Washer Hookup

Features

Office, Kitchen, Bedroom, Living/Dining Rm Combo, Internet Available - Broadband
Flooring: Wood, Tile, Carpet
Doors: Insulated Doors
Windows: Insulated Windows
Basement: Full,Partially Finished,Walk-Out Access,Interior Entry,Concrete
Number of fireplaces: 1

Interior area

Total structure area: 3,418
Total interior livable area: 3,418 sqft
Finished area above ground: 2,659
Finished area below ground: 759

Video & virtual tour

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Property

Parking

Total spaces: 6
Parking features: Under, Paved Drive, Off Street
Attached garage spaces: 2
Uncovered spaces: 4

Features

Patio & porch: Porch, Deck - Wood, Patio, Covered
Exterior features: Porch, Deck - Wood, Patio, Covered Patio/Deck, Professional Landscaping, Sprinkler System

Lot

Size: 0.86 Acres
Features: Gentle Sloping, Level

Details

Parcel number: M:015 B:0002 L:2,3844828
Zoning: R1

Construction

Type & style

Home type: SingleFamily
Architectural style: Colonial
Property subtype: Single Family Residence

Materials

Frame
Foundation: Concrete Perimeter
Roof: Shingle

Condition

Year built: 2000

Utilities & green energy

Electric: Circuit Breakers, Generator Connection
Sewer: Public Sewer
Water: Public
Utilities for property: for Gas Range, for Gas Dryer, Washer Hookup, Generator Connection

Community & HOA

Community

Features: Public Transportation, Shopping, Park, Walk/Jog Trails, Golf, Medical Facility, Bike Path, Highway Access, House of Worship, Private School, Public School, T-Station, University
Security: Security System

HOA

Has HOA: No

Location

Region: Tyngsboro

Financial & listing details

Price per square foot: $350/sqft
Tax assessed value: $807,200
Annual tax amount: $9,961
Date on market: 6/22/2026

Estimated market value

$1,164,400

$1.11M - $1.22M

$5,087/mo

Price history

Date	Event	Price
6/22/2026	Listed for sale	$1,195,000+108.2%$350/sqft
Source: MLS PIN #73539441 Report a problem
7/16/2007	Sold	$574,000+504.2%$168/sqft
Source: Public Record Report a problem
10/22/1999	Sold	$95,000$28/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$9,961 +0.4%	$807,200 +3.4%
2024	$9,925 +5.8%	$780,300 +17.6%
2023	$9,385 +3.5%	$663,700 +9.3%
2022	$9,070 +1.6%	$607,100 +9.3%
2021	$8,925 -0.1%	$555,400 +1%
2020	$8,938 +5.3%	$550,000 +9.6%
2019	$8,492 +1.2%	$501,600 +2.3%
2018	$8,391 +3.2%	$490,400 +3.5%
2017	$8,127 +1.9%	$473,600 +4.3%
2016	$7,976 +6.2%	$454,200 +2.6%
2015	$7,508 +1.1%	$442,700
2014	$7,429 +2.9%	$442,700 -0.7%
2013	$7,221 +5.4%	$446,000 -0.4%
2012	$6,850 +7.9%	$448,000
2011	$6,348 -0.3%	$448,000 -1.8%
2010	$6,365 +5.3%	$456,300 -5.3%
2009	$6,047 +0.4%	$481,800 -6.3%
2008	$6,021 +0.8%	$514,200 -3.6%
2007	$5,972 +0.7%	$533,200 +4.2%
2006	$5,933 +3.2%	$511,500 +5.5%
2005	$5,747 +2%	$485,000 +9.3%
2004	$5,636 +2.3%	$443,800 +33%
2003	$5,508 +5.3%	$333,600 +9.7%
2002	$5,229	$304,000