99 Sumner St #506 · Boston

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For sale

FOR SALE · MLS #73490155

$850,000

beds: 1
baths: 1
sqft: 783

99 Sumner St #506

Boston, MA 02128

LOCATION

Property location

Directions

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99 Sumner St #506, Boston, MA 02128Open Street View

GPS - Next to Lopresti Park

Home type: Condominium
Interior living area: 783 sqft
Year built: 2020
Parking spaces: 1
Price per sqft: $1,086/sqft
HOA fee: $964 · Monthly

About this home

Bright, well-appointed 1+ den opportunity with parking at The Mark on East Boston’s waterfront. Elegant & distinctive interior finishes throughout the building & home. Oversized windows flood the open living space with natural light & courtyard/water views. The kitchen features Silestone quartz counter tops, Bosch appliances & an island perfect for entertaining. The Primary bedroom has charming views of courtyard and water, and the versatile den is perfect for a home office/second bedroom. Enjoy ample closet space and storage solutions throughout including a deeded storage unit conveniently located on the same floor. The Mark is a full service building with amenities including: 24/7 concierge, fitness center with flex studio, harbor view resident terrace with grills and fire pits, golf simulator, conference rooms, entertainment suite, and pet spa. Modern community in a prime Eastie location — easy access to dining, transit and waterfront. A turnkey opportunity for seamless city living.

Listed by Alexandria Lyons · JD Advisors, Inc
MLS PIN #73490155 · Updated 7/30/2026, 3:05:00 AM ET

Building & association

Total units: 106
Building stories: 1
Entry level: 5
HOA fee includes: Water · Sewer · Insurance · Maintenance Structure · Maintenance Grounds · Snow Removal · Reserve Funds
Association amenities: Elevator(s) · Fitness Center · Clubroom · Storage

From MLS fields in this listing. Confirm association rules and fees with the association documents.

Facts & features

Home overview

Property subtype: Condominium
Property category: Residential
MLS status: Active
Bedrooms: 1
Full bathrooms: 1
Half bathrooms: 0
Total bathrooms: 1
Total rooms: 5
Living area: 783 sqft
Living area source: Public Record
Above grade finished area: 783 sqft
Building area: 783
Building area units: Square Feet
Building area source: Public Records
Area includes basement: No
Stories: 1
Building stories: 1
Entry level: 5
Unit building: 506

Interior & systems

Heating: Forced Air
Heating available: Yes
Cooling: Central Air
Cooling available: Yes
Basement: N
Fireplace: No
Fireplaces: 0
Security features: Concierge

Price & tax details

Current asking price$850,000

Original asking price$850,000

Listed on2026-03-23

Days on market164

Tax record supplied by MLS
Year	Property tax	Assessed value
2025	$9,081	$784,200

These records are supplied by the current listing. Assessed value is not market value; confirm taxes with the local assessor.

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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

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78DESE percentile