Beautiful Brownstone 2BR/2BA Duplex in the heart of the South End with private outdoor space, exposed brick finishes, & high ceilings. Enjoy a renovated kitchen with granite counters, gas cooking, & SS Appliances, including a brand new dishwasher. Each level boasts its own bedroom - the larger of the two featuring three over-sized windows, a wood-burning fireplace, and access to a private patio. Wide plank hardwood flooring throughout. Laundry in unit. Pet friendly. Located just steps from The Prudential Center, Whole Foods Market, the Orange Line (T), Boston Medical, and all of the South End's great restaurants and shops.
Listed by Miles Wright · Century 21 Cityside MLS PIN #73581533 · Updated 10/20/2026, 3:05:00 AM ET
Building & association
Building name
504 Massachusetts Ave Condominiums
Total units
7
Building stories
2
Entry level
1
HOA fee includes
Water · Sewer · Insurance
Pets allowed
Yes
From MLS fields in this listing. Confirm association rules and fees with the association documents.
Public Transportation · Shopping · Park · Walk/Jog Trails · Medical Facility · Laundromat · Bike Path · Highway Access · House of Worship · T-Station · University
Senior community
No
Taxes & property records
Annual property tax
$9,755
Tax year
2026
Assessed value
$786,700
Parcel number
3393015
Zoning
CD
Registry book
61230
Registry page
7
Rental terms
Pets allowed
Yes
Location & listed schools
City
Boston
County
Suffolk
State
MA
ZIP code
02118
MLS area
South End
Directions
Corner of Massachusetts Ave and Tremont St.
Listing & disclosures
MLS number
73581533
Listing date
2026-09-23
Original entry date
2026-09-23
Status changed
2026-10-16
Listing modified
2026-10-20
Original list price
$819,900
Current list price
$799,900
List price per sqft
$807.98
Days on market
27
Property market time
27
Disclosures
Unit requires a Portfolio Loan based on the percentage of commercial spaces & ownership. Consult with a mortgage professional prior to showing. Ask listing agent for further details.
Disclosure indicator
N
Lead paint
Unknown
Price & tax details
Current asking price$799,900
Original asking price$819,900
Listed on2026-09-23
Days on market27
Tax record supplied by MLS
Year
Property tax
Assessed value
2026
$9,755
$786,700
These records are supplied by the current listing. Assessed value is not market value; confirm taxes with the local assessor.
Mortgage calculator
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Results include principal and interest, plus property tax and HOA when MLS lists them; home and mortgage insurance and utilities are excluded. Tax uses the amount in this listing; a buyer’s actual tax may differ with reassessment or residential exemptions. The rate is your assumption, not a current market quote or loan offer.
SCHOOLS & EDUCATION
Schools & performance
2026 MA DESE
School names, grades and state-reported measures are listed below.
This listing does not name individual schools. Public school information below is context, not an attendance assignment for this address.
Nearby public schools
Sorted by straight-line distance within the city. These are not attendance boundaries or a guarantee of enrollment.
MLS school names do not guarantee attendance. Assignment can vary by school year, grade and admissions policy; confirm with the district before committing.What do these numbers mean?
DESE accountability percentiles (1–99) compare schools administering similar assessments, using up to two years of indicators. These are not test scores out of 100 or GreatSchools 1–10 ratings. Progress toward targets is a separate state measure. Consider programs, support services and your child’s needs as well.
School names link to available school or district websites.