NOT LISTED FOR SALE

6 Arlington St Unit 3 Boston, MA 02116

Back Bay Neighborhood

Estimated Value: $7,900,000 - $8,626,000

3 Beds
3.5 Baths
3,319 Sq Ft
3,485 Sq Ft Lot

Sale Details

Date Sold: November 18, 2025

Last sale price $8,375,000 $2,523 Per Sq Ft

Est. 3% decrease in value since last sale

Current estimated payment $57,683 / mo

211 Days on Market

Highlights

  • Doorman
  • 4-minute walk to Arlington Station
  • Marble Flooring
  • Beethoven Elementary School Rated A-
  • Deck
  • 4-minute walk to Public Garden

About This Home

As of November 2025

Fully customized Zero Marlborough full floor home! Expertly renovated by the current owner and CAFCO Builders, this elegant 3+ bed, 3.5 bath home has been skillfully finished and beautifully designed. With more than 3300SF, this sophisticated and gracious single level home boasts 22 sun inviting windows that wrap 4 sides of the building and enjoys views of the famed Boston Public Garden. With direct elevator access, the layout is ideal for both formal entertaining and intimate gatherings with its banquet sized living and dining rooms with dual gas fireplaces, wine storage, powder room and an open concept kitchen and family room. 3 generous bedroom suites comprise the living quarters, including a serene primary suite with 2 walk in closets, wall of built-ins and elegant spa-like 5 piece marble bath. Complete with a private outdoor deck, office, city views and abundant storage. Zero Marlborough is one of only a few boutique doorman buildings, with 24/7 concierge and valet garage parking!

Last Agent to Sell the Property

Maggie Gold Seelig

MGS Group Real Estate LTD Listed on: 01/06/2025

MGS Group Real Estate LTD

Co-Listed By

Mark Ruane

MGS Group Real Estate LTD

Last Buyer's Agent

Beth Dickerson

Gibson Sotheby's International Realty

Gibson Sotheby's International Realty

Property Details

Home Type

  • Condominium

Est. Annual Taxes

  • $70,633

Year Built

  • Built in 1910

Lot Details

  • 3,485

HOA Fees

  • $6,960 Monthly HOA Fees

Parking

  • 1 Car Detached Garage
  • Common or Shared Parking
  • Off-Street Parking
  • Rented or Permit Required

Home Design

  • Entry on the 3rd floor

Interior Spaces

  • 3,319 Sq Ft Home
  • 1-Story Property
  • 3 Fireplaces
  • Intercom

Kitchen

  • Oven
  • Range
  • Freezer
  • Dishwasher
  • Wine Refrigerator
  • Disposal

Flooring

  • Wood
  • Marble

Bedrooms and Bathrooms

  • 3 Bedrooms

Laundry

  • Laundry in unit
  • Dryer
  • Washer

Outdoor Features

  • Deck

Utilities

  • Forced Air Heating and Cooling System
  • Hot Water Heating System

Listing and Financial Details

  • Assessor Parcel Number W:05 P:02776 S:010,4759311

Community Details

Overview

  • Association fees include heat, gas, water, sewer, insurance, security, maintenance structure, ground maintenance, trash, air conditioning
  • 12 Units
  • Mid-Rise Community

Amenities

  • Doorman
  • Elevator

Pet Policy

  • Call for details about the types of pets allowed

Property Details

Home Type

Condominium

Est. Annual Taxes

$70,633

Year Built

Built in 1910

Lot Details

3,485 Sq Ft Lot

HOA Fees

$6,960 per month

Parking

1

Listing Details

  • Property Type: Residential
  • Property Sub Type: Condominium
  • Structure Type: Mid-Rise
  • Year Built: 1910
  • Entry Level: 3
  • Year Built Details: Approximate,Renovated Since
  • Year Round: Yes
  • MLSPIN_BEACHFRONT_FLAG: No
  • Special Features: None
  • Stories: 1

Interior Features

  • Flooring: Wood, Marble
  • Fireplace YN: Yes
  • Fireplaces: 3
  • Appliances: Range, Oven, Dishwasher, Disposal, Refrigerator, Freezer, Washer, Dryer, Wine Refrigerator
  • Total Bedrooms: 3
  • Basement YN: No
  • Full Bathrooms: 3
  • Half Bathrooms: 1
  • Total Bathrooms: 4
  • Master Bathroom Features: Yes
  • Laundry Features: In Unit
  • Basement: N
  • Above Grade Finished Sq Ft: 3319
  • Living Area: 3319
  • Spa YN: No
  • Stories Total: 1
  • MAIN LO: AN0499
  • MAIN SO: BB5918

Exterior Features

  • Exterior Features: Deck
  • Home Warranty YN: No
  • Patio And Porch Features: Deck
  • Waterfront YN: No
  • Waterview Flag: No

Garage/Parking

  • Garage Spaces: 1
  • Attached Garage YN: No
  • Carport Y N: No
  • Covered Parking Spaces: 1
  • Garage YN: Yes
  • Parking Features: Detached, Off Street, Rented

Utilities

  • Sewer: Public Sewer
  • Cooling: Central Air
  • Heating: Forced Air
  • Cooling Y N: Yes
  • Heating YN: Yes
  • Security Features: Intercom, Doorman
  • Water Source: Public

Condo/Co-op/Association

  • Association Amenities: Hot Water, Elevator(s), Parking
  • Association Fee: 6960
  • Association Fee Frequency: Monthly
  • Senior Community YN: No

Fee Information

  • Association Fee Includes: Heat, Gas, Water, Sewer, Insurance, Security, Maintenance Structure, Maintenance Grounds, Trash, Air Conditioning

Lot Info

  • Parcel Number: W:05 P:02776 S:010,4759311
  • Zoning: CD
  • Farm Land Area Units: Square Feet
  • Lot Size Acres: 0.08
  • Lot Size Sq Ft: 3319
  • Lot Size Units: Acres
  • Property Attached YN: Yes
  • OUTDOOR SPACE AVAILABLE: Yes - Private

Rental Info

  • Pets Allowed: Yes w/ Restrictions

Tax Info

  • Tax Year: 2024
  • Tax Annual Amount: 70633

Multi Family

  • Number Of Units Total: 12
  • Basement Included Sq Ft: No

Ownership History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Name Owned For Owner Type

Purchase Details

Listed on
Jan 6, 2025
Closed on
Nov 5, 2025
Sold by
Bought by
Seller's Agent
Maggie Gold Seelig
MGS Group Real Estate LTD
Buyer's Agent
Beth Dickerson
Gibson Sotheby's International Realty
List Price
$8,995,000
Sold Price
$8,375,000
Premium/Discount to List
-$620,000
-6.89%
Views
89
Current Estimated Value
$8,149,317

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
-$225,683
Avg. Annual Appreciation
-4.00%

Purchase Details

Closed on
Oct 30, 2015
Sold by
Bought by

Purchase Details

Listed on
Mar 6, 2014
Closed on
Apr 22, 2014
Sold by
Bought by
Seller's Agent
Tracy Campion
Campion & Company Fine Homes Real Estate
Buyer's Agent
Maggie Gold Seelig
MGS Group Real Estate LTD
List Price
$5,750,000
Sold Price
$5,200,000
Premium/Discount to List
-$550,000
-9.57%

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
3.74%
Original Mortgage
$1,200,000
Interest Rate
0.02%
Mortgage Type
Purchase Money Mortgage

Purchase Details

Closed on
Sep 19, 2008
Sold by
Bought by
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
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Average Value
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List Price
Sold Price
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Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
$8,375,000 --
-- --
$5,200,000 --
$4,353,147 --
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Previous Owner $1,200,000
Closed $300,000
Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft Prior Sale
11/18/2025 11/18/25 Sold $8,375,000 -6.9% $2,523 / Sq Ft
08/05/2025 08/05/25 Pending -- -- --
01/06/2025 01/06/25 For Sale $8,995,000 +73.0% $2,710 / Sq Ft
04/22/2014 04/22/14 Sold $5,200,000 0.0% $1,567 / Sq Ft View Prior Sale
03/26/2014 03/26/14 Pending -- -- --
03/24/2014 03/24/14 Off Market $5,200,000 -- --
03/06/2014 03/06/14 For Sale $5,750,000 -- $1,732 / Sq Ft
Source: MLS Property Information Network (MLS PIN)

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $77,390 $6,683,100 $0 $6,683,100
2024 $70,633 $6,480,100 $0 $6,480,100
2023 $66,282 $6,171,500 $0 $6,171,500
2022 $65,829 $6,050,500 $0 $6,050,500
2021 $64,559 $6,050,500 $0 $6,050,500
2020 $66,730 $6,319,100 $0 $6,319,100
2019 $65,276 $6,193,170 $0 $6,193,170
2018 $61,218 $5,841,450 $0 $5,841,450
2017 $59,472 $5,615,820 $0 $5,615,820
2016 $57,733 $5,248,440 $0 $5,248,440
2015 $61,185 $5,052,400 $0 $5,052,400
2014 $49,409 $3,927,600 $0 $3,927,600
Source: Public Records

Agents Affiliated with this Home

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Map

Source: MLS Property Information Network (MLS PIN)

MLS Number: 73323365

MLS Property Information Network (MLS PIN)

APN: CBOS-000000-000005-002776-000010

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