Price Reduced31
$979,999
5 bd · 2 ba · 3,624 sqft
20 John St, Chelsea, MA
Kevin Alen · Cameron Prestige, LLC

No listing photos
6
Beds
3
Baths
2,078
Sqft
1900
Year built
Range $727,900 – $928,600 · as of March 13, 2026
ATTOM automated valuation model · 51 published estimates over 6.2 years · shaded band is the model's own published low-to-high range
Highest reading $865,400 in May 2025; lowest $621,800 in February 2020. The vertical scale starts at the series' own low, not at zero — it is drawn to show movement, not absolute size.
$164,300
Estimated monthly payment
$5,349/mo
Loan amount $657,200. Estimate only — your actual rate and payment depend on credit, location, and lender.
2026 roll
School ratings (A+ to F) from HJN community data.
Clark Avenue School
5-8 · Regular · Chelsea School District
673 students · 12.7:1 student–teacher
Chelsea Virtual Learning Academy
8-12 · Regular · Chelsea School District
54 students · 8.4:1 student–teacher
Frank M Sokolowski Elementary School
1-4 · Regular · Chelsea School District
472 students · 11.2:1 student–teacher
William a Berkowitz Elementary School
1-4 · Regular · Chelsea School District
455 students · 12.3:1 student–teacher
Edgar F. Hooks Elementary School
1-4 · Regular · Chelsea School District
430 students · 10.8:1 student–teacher
George F. Kelly Elementary School
1-5 · Regular · Chelsea School District
527 students · 12.0:1 student–teacher
Phoenix Academy Charter Public High School Chelsea
9-12 · Alternative/Other · Phoenix Academy Charter Public High School Chelsea
198 students · 19.9:1 student–teacher
Joseph A. Browne School
5-8 · Regular · Chelsea School District
487 students · 9.0:1 student–teacher
Rings at ½ mile and 1 mile. Basemap © OpenMapTiles © OpenStreetMap contributors.
Open the Chelsea camera map28 devices mapped within ½ mile of this home: 6 license-plate readers and 22 CCTV cameras; 6 of them identified as Flock Safety devices. Nearest: 0.1 mi southwest. Operators named in the data: The Home Depot and Chelsea Police.
| Device type | Within ½ mi | Within 1 mi |
|---|---|---|
| License-plate readers | 6 | 14 |
| of which Flock Safety | 6 | 13 |
| CCTV cameras | 22 | 72 |
| Gunshot detectors | 0 | 3 |
Community-reported via OpenStreetMap; may be incomplete. Data as of . © OpenStreetMap contributors (ODbL)
License-plate readers (ALPR) are fixed cameras that photograph passing vehicles and read their plates. Records are typically shared with the agency or association that operates the camera.
Flock Safety is a company whose plate-reader cameras are used by police departments, cities, HOAs and businesses. Its devices are usually solar-powered and pole-mounted.
CCTV cameras are fixed video cameras that record a street, building or other area.
Gunshot detectors are acoustic sensors that listen for gunfire and report its estimated location.
Within 2 miles of this home: 33+ restaurants and cafés, 12 grocery stores, 39+ parks and green spaces, and 27+ transit stops.
Place data from OpenStreetMap.
Pan Y Cafe
Washington Avenue
Burrito's Pizza & Grill
Broadway
Starbucks
Revere Beach Parkway
Tambo 22 Restaurant and Cocktail Bar
Adams Street
New Brown Jug
Revere Beach Parkway
McDonald's
Revere Beach Parkway
Dunkin
Eastern Avenue
Mandarin Buffet
Market Basket
Everett Avenue
Boston Flower Exchange
Saratoga Market
McKinnon's Market & Super Butcher
Supermercado Latino
Stop & Shop
Furlong Drive
Sava's Market
Bennington Street
El Valle de la Sultana Market
Bennington Street
Lafyette Pocket Park
John Ruiz Park
Eden Street Park
Malone Park
Mace Tot Lot
Roche Park
Paul A. Dever Park
Anita's Garden
Hillside Ave @ Crest Ave
Washington Ave @ Cary Ave
Washington Ave @ Spruce St
Broadway @ Parker St
Summit Ave @ Chelsea Soldiers Home
Broadway @ Eleanor St
Washington Ave @ Bloomingdale St
Broadway @ Cary Ave
MLS Property Information Network (MLS PIN)Some properties which appear for sale on this web site may subsequently have sold or may no longer be available.
