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Sold for $1,284,000
  • $1,284,000

    21 William St, Andover, MA 01810

    5beds
    3,451sqft
    Single Family Residence
    Built in 1920
    0.28 Acres Lot
    $1,283,800 Zestimate®
    $372/sqft
    $5,211 Estimated rent

    Home value

    $1,283,800

    $1.19M - $1.39M

    $5,211/mo

    Zestimate® history
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    What's special

    Full brick homeSlate roofAmazing curb appeal
    If there was an award for the prettiest street in Andover, William Street would take top prize! This special neighborhood known as the "Brick Shawsheen" has beautiful brick homes, a long charming cul de sac street, with sidewalks on both sides, gas lanterns, & friendly neighbors out & about. Love older homes? What you will love here. 1. Amazing curb appeal, full brick home with slate roof. 2. Step inside the foyer, you won't know where to look first, class, charm & grace is everywhere. 3 There are 2 fireplaces, wood burning in the living room & gas (converted from wood) in family room. 4. A perfect floor plan for entertaining, includes a 4 season sunroom, with access to a private patio off the sunroom & family room. 5. There's a 5th bedroom or bonus room with private full bath on the 3rd floor. There's an oversized 2 car detached garage, a brand new 200 amp electrical service, a new boiler, & so much more! An unhurried lifestyle, it feels like the good old days are back. Pure delight!

    Zillow last checked:

    Listing updated:

    Listed by:

    Carla Burns 978-376-5448,

    Coldwell Banker Realty - Andovers/Readings Regional 978-475-2201

    Bought with:

    Christina Santos-Gordon

    LAER Realty Partners

    Source: MLS PIN,MLS#: 73540061

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 5
    • Bathrooms: 3
    • Full bathrooms: 2
    • 1/2 bathrooms: 1
    Primary bedroom
    • Features: Closet, Flooring - Hardwood
    • Level: Second
    • Area: 168
    • Dimensions: 12 x 14
    Bedroom 2
    • Features: Closet, Flooring - Hardwood
    • Level: Second
    • Area: 168
    • Dimensions: 12 x 14
    Bedroom 3
    • Features: Closet, Flooring - Hardwood
    • Level: Second
    • Area: 140
    • Dimensions: 10 x 14
    Bedroom 4
    • Features: Closet, Flooring - Hardwood
    • Level: Second
    • Area: 140
    • Dimensions: 10 x 14
    Bedroom 5
    • Features: Bathroom - 3/4, Skylight, Cathedral Ceiling(s), Ceiling Fan(s), Beamed Ceilings, Walk-In Closet(s), Flooring - Wall to Wall Carpet, Attic Access, Lighting - Overhead
    • Level: Third
    • Area: 420
    • Dimensions: 20 x 21
    Primary bathroom
    • Features: No
    Bathroom 1
    • Features: Bathroom - Half, Flooring - Vinyl
    • Level: First
    • Area: 8
    • Dimensions: 2 x 4
    Bathroom 2
    • Features: Bathroom - Full, Closet - Linen, Flooring - Stone/Ceramic Tile
    • Level: Second
    • Area: 72
    • Dimensions: 8 x 9
    Bathroom 3
    • Features: Bathroom - 3/4
    • Level: Third
    • Area: 30
    • Dimensions: 5 x 6
    Dining room
    • Features: Closet/Cabinets - Custom Built, Flooring - Hardwood
    • Level: First
    • Area: 196
    • Dimensions: 14 x 14
    Family room
    • Features: Skylight, Cathedral Ceiling(s), Ceiling Fan(s), Beamed Ceilings, Closet/Cabinets - Custom Built, Flooring - Hardwood, Window(s) - Bay/Bow/Box, French Doors, Exterior Access
    • Level: First
    • Area: 304
    • Dimensions: 16 x 19
    Kitchen
    • Features: Bathroom - Half, Beamed Ceilings, Closet/Cabinets - Custom Built, Countertops - Stone/Granite/Solid, Breakfast Bar / Nook, Recessed Lighting, Stainless Steel Appliances
    • Level: First
    • Area: 208
    • Dimensions: 13 x 16
    Living room
    • Features: Flooring - Hardwood, French Doors, Chair Rail, Wainscoting, Crown Molding, Window Seat
    • Level: First
    • Area: 350
    • Dimensions: 14 x 25
    Heating
    • Steam, Natural Gas
    Cooling
    • Ductless
    Appliances
    • Included: Gas Water Heater, Oven, Dishwasher, Range, Refrigerator, Washer, Plumbed For Ice Maker
    • Laundry: In Basement, Electric Dryer Hookup, Washer Hookup
    Features
    • Ceiling Fan(s), Closet, Wainscoting, Crown Molding, Sun Room, Foyer, Bathroom, Walk-up Attic
    • Flooring: Tile, Carpet, Hardwood, Flooring - Stone/Ceramic Tile, Flooring - Hardwood
    • Doors: Storm Door(s), French Doors
    • Windows: Insulated Windows, Storm Window(s), Screens
    • Basement: Full,Crawl Space,Interior Entry,Concrete,Unfinished
    • Number of fireplaces: 2
    • Fireplace features: Family Room, Living Room
    Interior area
    • Total structure area: 3,451
    • Total interior livable area: 3,451 sqft
    • Finished area above ground: 3,451

    Property

    Parking
    • Total spaces: 10
    • Parking features: Detached, Garage Door Opener, Oversized, Paved Drive, Off Street, Paved
    • Garage spaces: 2
    • Uncovered spaces: 8
    Accessibility
    • Accessibility features: No
    Features
    • Patio & porch: Porch - Enclosed, Patio
    • Exterior features: Porch - Enclosed, Patio, Professional Landscaping, Sprinkler System, Decorative Lighting, Screens
    Lot
    • Size: 0.28 Acres
    • Features: Cul-De-Sac, Easements
    Details
    • Parcel number: M:00052 B:00119 L:00000,1838724
    • Zoning: SRA

    Construction

    Type & style
    • Home type: SingleFamily
    • Architectural style: Colonial
    • Property subtype: Single Family Residence
    Materials
    • Brick
    • Foundation: Stone
    • Roof: Slate
    Condition
    • Year built: 1920

    Utilities & green energy

    • Electric: 200+ Amp Service
    • Sewer: Public Sewer
    • Water: Public
    • Utilities for property: for Electric Range, for Electric Oven, for Electric Dryer, Washer Hookup, Icemaker Connection

    Community & HOA

    Community
    • Features: Park, Highway Access, Sidewalks
    • Security: Security System
    • Subdivision: Pretty brick section of Shawsheen Village.
    HOA
    • Has HOA: No
    Location
    • Region: Andover

    Financial & listing details

    • Price per square foot: $372/sqft
    • Tax assessed value: $1,213,700
    • Annual tax amount: $14,941
    • Date on market: 7/8/2026
    • Exclusions: See Inclusion/Exclusion List In Mls Under Paperclip.
    • Road surface type: Paved

    Price history

    DateEventPrice
    7/30/2026Sold$1,284,000-1.2%$372/sqft
    Source: MLS PIN #73540061 Report a problem
    7/16/2026Pending sale$1,299,000$376/sqft
    Source: MLS PIN #73540061 Report a problem
    7/2/2026Contingent$1,299,000$376/sqft
    Source: MLS PIN #73540061 Report a problem
    6/23/2026Listed for sale$1,299,000$376/sqft
    Source: MLS PIN #73540061 Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025$13,963 $1,084,100
    2024$13,963 +4.7%$1,084,100 +11.1%
    2023$13,331 $975,900
    2022$13,331 +10.4%$975,900 +23.6%
    2021$12,075 +4.3%$789,700 +2.3%
    2020$11,582 +1.3%$771,600 +3%
    2019$11,437 +5%$749,000 +7.6%
    2018$10,890 +4.4%$696,300 +1.4%
    2017$10,427 +2.4%$686,900 0%
    2016$10,181 +4.1%$687,000 +5.1%
    2015$9,781 +7.3%$653,400 +8.8%
    2014$9,116 +4.6%$600,500
    2013$8,713 +3%$600,500 +0.4%
    2012$8,463 +3.8%$598,100 +3.6%
    2011$8,150 +3.3%$577,200 -3.5%
    2010$7,886 +1.4%$597,900 -6.5%
    2009$7,775 +3.1%$639,400 -0.9%
    2008$7,544 +3.9%$645,300 0%
    2007$7,261 +2.8%$645,400 +4.1%
    2006$7,066 +6.6%$619,800 +7.7%
    2005$6,626 +4%$575,700 +3.7%
    2004$6,369 +1.5%$555,300 +2.9%
    2003$6,277 +12%$539,700 +43.7%
    2001$5,604 +1.8%$375,600
    2000$5,503 +12.4%$375,600 +18.7%
    1997$4,896 $316,300
    Find assessor info on the county website

    Neighborhood: 01810

    Nearby schools

    GreatSchools rating
    Schools provided by the listing agent
    • Elementary: West Elementary
    • Middle: West Middle
    • High: Andover High School

    Source: MLS PIN. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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    Estimated market value
    $1,283,800
    Get a cash offer in 3 minutes
    Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
    Estimated market value
    $1,283,800