Condominium at 21 Beacon St # 3K, Boston MA 02108
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$409,900

21 Beacon St # 3K, Boston MA 02108
Boston, MA 02108
Listed by Enrique Arias
Bedrooms
0
Bathrooms
1
Living area
262 sqft
Year built
1899

About this home

Experience effortless Boston living in the distinguished Bellevue Building, located in the coveted Beacon Hill neighborhood. This stylish studio is the perfect starter home, city getaway, or smart investment, surrounded by the city’s best—Boston Common, top universities, downtown offices, cultural landmarks, and public transit are all within steps. Residents enjoy a shared roof deck with skyline views, while inside you’ll find a bright, open layout with tall ceilings, gleaming hardwoods, and oversized windows that create an airy, modern feel. The space features a sleek bathroom, ample storage, and a well-appointed kitchenette with granite counters and stainless appliances. With a full-time concierge, pet-friendly policy, and low condo fee that includes heat and hot water, this residence delivers both comfort and value. Historic character meets contemporary convenience in one of Boston’s most desirable addresses.

Highlights

View

Property details

MLS
MLS Property Information Network
MLS #
73509451
Property type
Condominium
Subdivision
N/A
Status
Active
Days on market
175
On market date
April 29, 2026
Stories
1
Total bathrooms
1
Garage spaces
N/A
Parking spaces
N/A
Lot size
0.01 acres
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Nearby schools

Within 10 miles. School directory data from the National Center for Education Statistics (NCES), accessed via the Urban Institute Education Data API. Local Score is calculated by INNOVATE Real Estate; where a state rating is shown, it comes from that state's own official school report card.

Elementary
Eliot Elementary
0.72 mi away · Grades -1-8
Nearest school -- attendance-zone data not available here
4.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
796
Student:teacher ratio
14.5:1
District
Boston
Middle
Cambridge Street Upper School
1.77 mi away · Grades 6-8
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
279
Student:teacher ratio
7.5:1
District
Cambridge
High
Boston Adult Academy
0.72 mi away · Grades 11-12
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
120
Student:teacher ratio
6.7:1
District
Boston

Walkability

Blended score for Boston's center, calculated by INNOVATE Real Estate from two sources: the EPA's National Walkability Index (street network, transit, land-use mix) and Google Places amenity data (what's actually reachable on foot from this point). 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).

95
Highly walkable
out of 100
EPA National Walkability Index
18.3 / 20 -- Most walkable
Google Places amenity density
100 / 100
Restaurants & cafes20
Grocery stores20
Parks20
Schools20
Transit stops20
Pharmacies20

Market position

How this listing compares to current activity in Boston, from live MLS data.

On the market 175 days -- 50 more days than Boston's current average of 125 days.
For reference, the median list price across 8,949 active listings in Boston right now is $85,000.

Mortgage calculator

Estimate only - actual rate and payment depend on your lender, credit, and loan program.

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Est. monthly payment
$2,618/mo
$81,980 down
$327,920 loan
Principal & interest$2,127
Property tax (est.)$342
Home insurance (est.)$150

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Data source: Listing information provided by MLS Property Information Network via Trestle/CoreLogic. Last updated September 10, 2026.

Information herein deemed reliable but not guaranteed; all measurements, school assignments, HOA fees, taxes, and feature lists are approximate and should be independently verified. Equal Housing Opportunity.