33
$499,900
4 bd · 2 ba · 1,348 sqft
21 Jefferson Ave, Chelsea, MA
The Serrano Team · Leading Edge Real Estate

No listing photos
4
Beds
3
Baths
1,232
Sqft
1959
Year built
Range $554,598 – $640,814 · as of August 30, 2026
ATTOM automated valuation model · 54 published estimates over 6.7 years · shaded band is the model's own published low-to-high range
Highest reading $687,500 in April 2025; lowest $493,099 in January 2020. The vertical scale starts at the series' own low, not at zero — it is drawn to show movement, not absolute size.
$119,541
Estimated monthly payment
$3,975/mo
Loan amount $478,165. Estimate only — your actual rate and payment depend on credit, location, and lender.
2026 roll
School ratings (A+ to F) from HJN community data.
Webster School
KG-5 · Regular · Everett School District
351 students · 8.2:1 student–teacher
George Keverian School
KG-8 · Regular · Everett School District
873 students · 12.1:1 student–teacher
Everett High School
9-12 · Regular · Everett School District
2,307 students · 12.1:1 student–teacher
Chelsea Opportunity Academy
9-12 · Alternative/Other · Chelsea School District
132 students · 18.8:1 student–teacher
Chelsea High School
9-12 · Regular · Chelsea School District
1,649 students · 13.1:1 student–teacher
Parlin School
KG-8 · Regular · Everett School District
992 students · 14.1:1 student–teacher
Pioneer Charter School of Science
KG-12 · Regular · Pioneer Charter School of Science
795 students · 11.1:1 student–teacher
Chelsea Virtual Learning Academy
8-12 · Regular · Chelsea School District
54 students · 8.4:1 student–teacher
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.
33
$499,900
4 bd · 2 ba · 1,348 sqft
21 Jefferson Ave, Chelsea, MA
The Serrano Team · Leading Edge Real Estate
11$629,900
4 bd · 2 ba · 1,387 sqft
99 Parker Street, Chelsea, MA
Maria Escobar · Dell Realty Inc.
19$499,900
3 bd · 2 ba · 1,300 sqft
271 Washington Ave #1, Chelsea, MA
James Gattuso · Mayflower Realty Group
Price Reduced38$759,900
4 bd · 3 ba · 2,837 sqft
63 Orange St, Chelsea, MA
Aydin Kayabay · Aydin Realty LLC
Price Reduced28$599,900
4 bd · 3 ba · 2,557 sqft
46 Addison St #2, Chelsea, MA
Colleen & Company Team · Keller Williams Realty
41$719,900
4 bd · 2 ba · 1,831 sqft
415 Crescent Ave., Chelsea, MA
Fermin Group · Century 21 North East





Rings at ½ mile and 1 mile. Basemap © OpenMapTiles © OpenStreetMap contributors.
Open the Chelsea camera map22 devices mapped within ½ mile of this home: 1 license-plate reader, 19 CCTV cameras, and 2 gunshot detectors; one of them identified as a Flock Safety device. Nearest: 0.2 mi east. Operator named in the data: Chelsea Police.
| Device type | Within ½ mi | Within 1 mi |
|---|---|---|
| License-plate readers | 1 | 11 |
| of which Flock Safety | 1 | 11 |
| CCTV cameras | 19 | 41 |
| Gunshot detectors | 2 | 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: 38+ restaurants and cafés, 10 grocery stores, 38+ parks and green spaces, and 36+ transit stops.
Place data from OpenStreetMap.
Newbridge Cafe
American restaurant · Washington Avenue
Elm Street Bakery
Stewarts Pub
Jefferson Avenue
Rincon Latinos
Washington Avenue
Pizza Lovers
Washington Avenue
Dunkin
Washington Avenue
Metro Pizza
Washington Avenue
McDonald's
Revere Beach Parkway
McKinnon's Market & Super Butcher
Las Palmas Market
Market Basket
Everett Avenue
Supermercado Latino
99 Asian Supermarket
Broadway
Boston Flower Exchange
Portillo Brothers Market II
Ferry Street
Mineirão Market
Eastern Avenue
Voke Park
Washington Park
Howard Park
Washington Park Playground
Gramstorff Park
Sidney I. Shapiro Park
Roche Park
Malone Park
Washington Ave @ Prospect Ave
Washington Ave @ Columbus St
Woodlawn Ave @ Washington Ave
60 Woodlawn Ave
Washington Ave @ Annese Rd
Garfield Ave @ Fenno St
Elm St @ Winthrop Rd
Elm St @ Abbott Ave