21 William Street, Andover MA 01810

Andover, MA 01810 • Shawsheen Village - Pretty brick section of Shawsheen Village.

$1,299,000

Est. $8,014/month

5

Beds

2.5

Baths

3,451

Sq Ft

$376

Price/Sq Ft

0.28

Acres

1920

Year Built

2

Garage Spaces

Single Family Residence

Type

21

Days on Market

Pending Listed Jun 23, 2026 • MLS# 73540061 Copied! • Updated Jul 16, 2026

About this home

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!

View in the App

Save this property, schedule tours instantly, and get alerts when the price drops

Scan with phone

Get the full experience in the BMN Boston app

Public Records & Permits

BMN Estimate

Get the number an algorithm can't give you

A free agent CMA factors in condition, upgrades, and the street — the things comps alone can't see.

Recently Sold Nearby

Property History

Market Insights

Property Timeline

📋

Status: Active under contract

Jul 2, 2026

Active → Active Under Contract

⏳

Pending Sale

Jul 1, 2026

Offer accepted, sale pending

👁️

Showing Instructions Updated

Jun 23, 2026

New showing requirements

👁️

Showing Instructions Updated

Jun 23, 2026

New showing requirements

🏠

Listed for Sale

Jun 23, 2026

$1,299,000

Original listing

Agent: Carla Burns Office: Coldwell Banker Realty - Andovers/Readings Regional

Date	Event	Price	Change	$/sqft	Details
07/02/2026	📋 Status: Active under contract	-	-	-	Active → Active Under Contract
07/01/2026	⏳ Pending Sale	-	-	-	Offer accepted, sale pending
06/23/2026	👁️ Showing Instructions Updated	-	-	-	New showing requirements
06/23/2026	👁️ Showing Instructions Updated	-	-	-	New showing requirements
06/23/2026	🏠 Listed for Sale	$1,299,000	-	-	Original listing

Tax History

Year	Taxes	Assessment
2026	$14,941	$1,213,700

Financial Details

Annual Property Tax

$14,941

Tax Year 2026

Assessed Value

$1,213,700

Facts & Features

2 Car Garage

Home Facts

Type Residential

Style Single Family Residence

Year Built 1920

Living Area 3,451 sq ft

Lot Size 0.28 acres

Bedrooms 5

Full Baths 2

Half Baths 1

Total Rooms 10

Interior

Heating Steam, Natural Gas

Cooling Ductless

Flooring Tile, Carpet, Hardwood, Flooring - Stone/ceramic Tile, Flooring - Hardwood

Appliances Gas Water Heater, Oven, Dishwasher, Range, Refrigerator, Washer, Plumbed For Ice Maker

Fireplace Family Room, Living Room

Fireplaces 2

Basement Full, Crawl Space, Interior Entry, Concrete, Unfinished

Laundry In Basement, Electric Dryer Hookup, Washer Hookup

Features Ceiling Fan(s), Closet, Wainscoting, Crown Molding, Sun Room, Foyer, Bathroom, Walk-up Attic

Exterior

Construction Brick

Architecture Colonial

Roof Slate

Features Porch - Enclosed, Patio, Professional Landscaping, Sprinkler System, Decorative Lighting, Screens

Pool None

Spa None

Fencing None

Patio/Porch Porch - Enclosed, Patio

Parking

Garage Spaces 2

Has Garage Yes

Features Detached, Garage Door Opener, Oversized, Paved Drive, Off Street, Paved

Total Spaces 10

Utilities

Electric 200+ Amp Service

Water Public

Sewer Public Sewer

Gas None

Other For Electric Range, For Electric Oven, For Electric Dryer, Washer Hookup, Icemaker Connection

Financial

Annual Tax $14,941

Assessed Value $1,213,700

HOA & Community

Fee Includes None

Amenities None

Optional Fee Includes None

MA Disclosures

Seller Disclosures There Is A Quarter Bath In The Basement. There Is A Little Strip Of Electric Heat In First Floor 1/2 Bath. Professionally Measured Square Feet Differs From Town Assessor Finished Square Feet Information. See Dimensions New England Breakdown Of Finished Square Feet In Mls Under Paperclip.

Exclusions See Inclusion/Exclusion List In Mls Under Paperclip.

Additional Details

Possession None

Accepted Financing None

Structure Type []

House Color Brick

Sq Ft Source Measured

Sq Ft Disclosures Professionally measured (Dimensions New England) finished area square feet on 1st, 2nd & 3rd floors.

Documents None

County Essex

Total market time (incl. prior listings) 23 days

Property Overview

Property Type

Single Family Residence

Listing Type

For Sale

Year Built

1920

Bedrooms

5

Full Bathrooms

2

Half Bathrooms

1

Living Area

3,451 sq ft

Total Rooms

10

Room Details

First Floor

Bathroom1

2 x 4

Bathroom - Half, Flooring - Vinyl

Dining Room

14 x 14

Closet/Cabinets - Custom Built, Flooring - Hardwood

Kitchen

13 x 16

Bathroom - Half, Beamed Ceilings, Closet/Cabinets - Custom Built, Countertops - Stone/Granite/Solid, Breakfast Bar / Nook, Recessed Lighting, Stainless Steel Appliances

Living Room

14 x 25

Flooring - Hardwood, French Doors, Chair Rail, Wainscoting, Crown Molding, Window Seat

Family Room

16 x 19

Skylight, Cathedral Ceiling(s), Ceiling Fan(s), Beamed Ceilings, Closet/Cabinets - Custom Built, Flooring - Hardwood, Window(s) - Bay/Bow/Box, French Doors, Exterior Access

Second Floor

Bedroom4

10 x 14

Closet, Flooring - Hardwood

Bedroom3

10 x 14

Closet, Flooring - Hardwood

Bathroom2

8 x 9

Bathroom - Full, Closet - Linen, Flooring - Stone/Ceramic Tile

Bedroom2

12 x 14

Closet, Flooring - Hardwood

Master Bedroom

12 x 14

Closet, Flooring - Hardwood

Third Floor

Bedroom5

20 x 21

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

Bathroom3

5 x 6

Bathroom - 3/4

Other Floor

Office

Master Bathroom

No

Interior Features

Flooring: Tile, Carpet, Hardwood, Flooring - Stone/Ceramic Tile, Flooring - Hardwood

Appliances: Gas Water Heater, Oven, Dishwasher, Range, Refrigerator, Washer, Plumbed For Ice Maker

Interior Features: Ceiling Fan(s), Closet, Wainscoting, Crown Molding, Sun Room, Foyer, Bathroom, Walk-up Attic

Windows: Insulated Windows, Storm Window(s), Screens

Basement: Full, Crawl Space, Interior Entry, Concrete, Unfinished

Laundry: In Basement, Electric Dryer Hookup, Washer Hookup

Security: Security System

Construction & Materials

Style: Colonial

Year Built: 1920

Structure Type:

Exterior Materials: Brick

Roof: Slate

Foundation: Stone

Heating, Cooling & Utilities

Heating: Steam, Natural Gas

Heating Zones: 1

Cooling: Ductless

Cooling Zones: 5

Hot Water:

Water Source: Public

Sewer: Public Sewer

Energy Features:

Exterior & Lot

Exterior Features: Porch - Enclosed, Patio, Professional Landscaping, Sprinkler System, Decorative Lighting, Screens

Patio & Porch: Porch - Enclosed, Patio

Fencing:

Other Structures:

Lot Features: Cul-De-Sac, Easements

Road Surface: Paved

Parking & Garage

Garage Spaces: 2

Total Parking Spaces: 10

Parking Features: Detached, Garage Door Opener, Oversized, Paved Drive, Off Street, Paved

Special Features

Fireplaces: 2

Fireplace Type: Family Room, Living Room

Community Amenities: Park, Highway Access, Sidewalks

Nearby Schools

School District

Andover School District local

A+

✓ School Safety 2024-25

0.4% Low

0.4% Suspensions 0.1% In-School

↓ 5.1% below state avg

E

Elementary Schools

3 schools

C

Robert Frost School

0.9 mi | #602 of 824 | Score: 40.8

Improved 56 spots from last year

-17.4 below state avg

568 students Less Diverse

Grades K-04

Shawsheen School

1.2 mi

85 students Diverse

Grades PK

A

West Elementary School

1.2 mi | #138 of 824 | Score: 57.4

Improved 127 spots from last year

-0.8 below state avg

605 students Diverse

Rising School

Grades K-05

M

Middle Schools

3 schools

C-

Frost Middle School

0.9 mi | #297 of 352 | Score: 31.7

Improved 21 spots from last year

-26.5 below state avg

508 students Less Diverse

Rising School

Grades 05-08

A

Andover West Middle School

1.1 mi | #49 of 352 | Score: 57.0

Improved 12 spots from last year

-1.2 below state avg

508 students Diverse

Grades 06-08

B+

Spark Academy

1.4 mi | #6 of 16 | Score: 35.8

Improved 245 spots from last year

-22.5 below state avg

443 students Less Diverse

Rising School

Grades 05-08

H

High Schools

3 schools

C

Lawrence High School

1.1 mi | #270 of 346 | Score: 44.4

Improved 39 spots from last year

-13.8 below state avg

3,453 students Less Diverse

13 sports • 1,440 athletes

Early College Program Rising School Career Tech Programs College Ready Curriculum

Grades 09-12

A+

Andover High School

1.2 mi | #24 of 346 | Score: 72.8

Improved 21 spots from last year

+14.6 above state avg

1,609 students Diverse

20 sports • 2,968 athletes

Strong AP Program High Graduation Rate College Ready Curriculum Strong Athletics

Grades 09-12

B

High School Learning Center

1.8 mi | #172 of 346 | Score: 71.1

Dropped 128 spots from last year

198 students Less Diverse

Career Tech Programs College Ready Curriculum

Grades 09-12

Learn about these ratings

Loading comparison...

Monthly Payment Calculator

Monthly Payment

$0

Principal, interest, taxes & insurance

Loan Amount

$0

After down payment

Total Interest

$0

Over life of loan

Total Cost

$0

Including down payment

Home Price

Down Payment

%

Down: $0

Interest Rate

%

Loan Term

Monthly Payment Breakdown

Principal & Interest $0

Property Tax $1,245

Homeowners Insurance $200

PMI (if <20% down) $0

Loan Summary

Total of 360 payments $0

Total principal paid $0

Total interest paid $0

Rate Impact

-0.5% Rate

$0/mo

Save $0/mo

Current Rate

$0/mo

+0.5% Rate

$0/mo

Cost $0/mo

Payment Over Time

Interest

Principal

Year 1

95% Interest

Year 15

50/50

Year 30

95% Principal

* Estimates only. Actual payments may vary. Consult with a lender for accurate figures.

Location

Loading map...

Neighborhood

Shawsheen Village - Pretty brick section of Shawsheen Village.

21 William Street, Andover MA 01810

Andover, MA 01810

Contact Us

Steven Novak

BMN Boston Real Estate

(617) 955-2224 mail@steve-novak.com

Ask about this property — free, no obligation.

21 William Street, Andover MA 01810

About this home

Public Records & Permits

BMN Estimate

Recently Sold Nearby

Property History

Market Insights

Property Timeline

Status: Active under contract

Pending Sale

Showing Instructions Updated

Showing Instructions Updated

Listed for Sale

Detailed History Table ▼

Tax History

Financial Details

Facts & Features

Home Facts

Interior

Exterior

Parking

Utilities

Financial

HOA & Community

MA Disclosures

Additional Details

Property Overview

Room Details

First Floor

Second Floor

Third Floor

Other Floor

Interior Features

Construction & Materials

Heating, Cooling & Utilities

Exterior & Lot

Parking & Garage

Special Features

Nearby Schools

Elementary Schools

Middle Schools

High Schools

Monthly Payment Calculator

Monthly Payment Breakdown

Loan Summary

Rate Impact

Payment Over Time

Location

Neighborhood

Listing Information

Contact Us

Similar Homes for Sale

Comparable Properties

Customize Comparable Search

Distance & Location

Property Characteristics

Price & Value

Property Features

Market Filters

Display Options

📍 Comparable Properties Map

Adjust Property Details

Market Analytics for Andover, MA

Steven Novak

Schedule a Tour

Get the BMN Boston App