340 Marlborough St Boston — Photo 1 of 42
Recent Drop: $200,000
$7,800,000
340 Marlborough St, Boston, MA 02115
Boston, MA 02115 — Back Bay
Beds
5
Baths
4
SqFt
4,735
Style
Single Family
Built
1877
Elegant single family home set on a landscaped European garden on Marlborough St. Renovated to the finest standards while keeping the quintessential Back Bay details, this home boasts 5 BR's, 3 full & 2 half baths.There is a gourmet chef's kitchen & family room on the lower level that lead out to a private patio, hot tub & direct to 2 full sized parking spaces. The main level showcases a fireplaced formal living room & dining room w/ a butler's pantry, perfect for hosting family & friends. Up one flight to the 2nd floor on an original classic staircase, you will enter the sumptuous primary suite w/ fireplace. It spans the entire floor, complete with a huge spa bathroom w/ a large soaking tub. A custom walk in closet is not to be missed. The remaining four BR's are on the upper floors & are spacious & versatile for home office & guests. Two more full baths service these BR's. A beautiful stained glass skylight crowns the top of this fabulous home. Central AC rounds out this showpiece!
Key facts
It was listed on March 26, 2026. The price has come down from an original $8,000,000 to $7,800,000, most recently on September 17, 2026. The annual property taxes are $72,520 (2025 tax year). It sits on a 0.06-acre (2,464 sq ft) lot.
Immersive Experience
Market Value Analysis
* Analysis is based on 24 actively listed and recently sold comparable properties strictly within Boston, MA.
Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Range • Dishwasher • Disposal • Microwave • Refrigerator • Washer • Dryer • Wine Refrigerator
Neighborhood
Public Transportation • Shopping • Park • Walk/Jog Trails • Medical Facility • Bike Path
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl First25 x 14
Window(s) - Bay/Bow/Box, Crown Molding
Dining Room
Lvl First19 x 14
Flooring - Hardwood, Wet Bar, Crown Molding
Kitchen
Lvl Basement27 x 18
Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Countertops - Upgraded, Breakfast Bar / Nook, Recessed Lighting, Remodeled, Pot Filler Faucet, Lighting - Pendant
Family Room
Lvl Basement17 x 13
Flooring - Hardwood
Primary Bedroom
Lvl Second27 x 21
Walk-In Closet(s), Closet/Cabinets - Custom Built, Flooring - Wall to Wall Carpet, Recessed Lighting
Bedroom 2
Lvl Third21 x 20
Bedroom 3
Lvl Third17 x 12
Flooring - Wall to Wall Carpet, Recessed Lighting
Bedroom 4
Lvl Fourth Floor20 x 16
Flooring - Hardwood, Recessed Lighting
Bedroom 5
Lvl Fourth Floor15 x 12
Flooring - Hardwood, Recessed Lighting
Bathroom 1
Lvl Second20 x 14
Bathroom - Full, Bathroom - Double Vanity/Sink, Bathroom - With Tub & Shower, Flooring - Stone/Ceramic Tile, Recessed Lighting, Remodeled, Soaking Tub
Bathroom 2
Lvl Third9 x 10
Bathroom - Full, Recessed Lighting
Bathroom 3
Lvl Fourth Floor8 x 8
Bathroom - Full, Recessed Lighting
Property History
$7,800,000
Was $8,000,000
Sep 17, 2026
MLS® 73492678
$8,000,000
Mar 26, 2026
MLS® 73492678
Questions about this home
When was 340 Marlborough St, Boston listed?
340 Marlborough St, Boston was listed on March 26, 2026.
Has the price of 340 Marlborough St, Boston changed?
The price has come down from an original $8,000,000 to $7,800,000, most recently on September 17, 2026.
What are the property taxes for 340 Marlborough St, Boston?
The annual property taxes for 340 Marlborough St, Boston are $72,520 (2025 tax year).
How big is the lot at 340 Marlborough St, Boston?
340 Marlborough St, Boston sits on a 0.06-acre (2,464 sq ft) lot.
What is the status of 340 Marlborough St, Boston?
340 Marlborough St, Boston is actively listed for sale.
Population
29,705
U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)
Median Household Income
$55K
U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)
Renter-Occupied Homes
85.4%
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 4,735 sq ft principal dwelling). Lot size: 2,464 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: Lisa Merriman Barth
Listing Office: Barth Real Estate
MLS® Number: 73492678
