20 John St Chelsea — Photo 1 of 31
Recent Drop: $20,000
$979,999
20 John St, Chelsea, MA 02150
Chelsea, MA 02150
Beds
5
Baths
2
SqFt
3,624
Style
Single Family
Built
1915
If you’ve been looking for unmatched scale and solid historic character minutes from Downtown, 20 John Street delivers on every level. If you want tiny, cramped rooms, this isn't the house for you-every single space here is oversized. Finished attic with clean hardwood floors, spacious bedrooms, high ceilings, classic crown moldings, and plenty of natural light. the property features a foyer with vintage stained glass . Beyond the massive interior footprint, a deep paved driveway and a rare, 2-car garage solve all your families parking needs. This is an expansive lot with solid bones and unmatched space-to-value for the area.
Key facts
It was listed on July 10, 2026. The price has come down from an original $999,999 to $979,999, most recently on September 18, 2026. The annual property taxes are $7,716 (2026 tax year). It sits on a 0.15-acre (6,376 sq ft) lot.
No longer available to tour
Market Value Analysis
* Analysis is based on 23 actively listed and recently sold comparable properties strictly within Chelsea, MA.
Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Gas Water Heater
Geography
Property History
$979,999
Was $999,999
Sep 18, 2026
MLS® 73547861
$999,999
Jul 10, 2026
MLS® 73547861
Questions about this home
When was 20 John St, Chelsea listed?
20 John St, Chelsea was listed on July 10, 2026.
Has the price of 20 John St, Chelsea changed?
The price has come down from an original $999,999 to $979,999, most recently on September 18, 2026.
What are the property taxes for 20 John St, Chelsea?
The annual property taxes for 20 John St, Chelsea are $7,716 (2026 tax year).
How big is the lot at 20 John St, Chelsea?
20 John St, Chelsea sits on a 0.15-acre (6,376 sq ft) lot.
What is the status of 20 John St, Chelsea?
20 John St, Chelsea is under contract, and the MLS still lists it as active.
Population
39,908
U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)
Median Household Income
$72K
U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)
Renter-Occupied Homes
74.0%
U.S. Census Bureau, ACS 2024 5-Year Estimates (B25003)
New Construction Permits — Suffolk County
2,337 housing units permitted in the last 12 months (+13% vs the prior 12 months) — 2,062 in 5+ unit buildings
U.S. Census Bureau, Building Permits Survey (through Jul '26)
ADU Potential
Massachusetts allows one accessory dwelling unit by right in single-family zoning districts statewide (M.G.L. c. 40A §3; 760 CMR 71.00, effective Feb 2025). Estimated maximum ADU size for this property: 900 sq ft (the lesser of 900 sq ft or half the 3,624 sq ft principal dwelling). Lot size: 6,376 sq ft.
Based on listing data, which indicates the property type — not the zoning district. Local dimensional, septic (Title 5), and historic-district requirements still apply. Not legal advice — verify with the municipality.
Listing Agent: Kevin Alen
Listing Office: Cameron Prestige, LLC
MLS® Number: 73547861
No longer available to tour
