NOT LISTED FOR SALE

45 Commonwealth Ave Unit 4 Boston, MA 02116

Back Bay Neighborhood

Estimated Value: $5,509,000 - $7,631,000

3 Beds
3.5 Baths
2,954 Sq Ft
1910 Built

Sale Details

Date Sold: March 6, 2026

Last sale price $5,900,000 $1,997 Per Sq Ft

Est. 10% increase in value since last sale

Current estimated payment $43,038 / mo

142 Days on Market

Highlights

  • Medical Services
  • Brownstone
  • Wood Flooring
  • Open Floorplan
  • Property is near public transit
  • 1-minute walk to Clarendon Street Play Lot

About This Home

As of March 2026

45 Commonwealth #4 is a rarely available residence in doublewide boutique brownstone on 2nd block, sunny side of Commonwealth Avenue. This truly exceptional south facing home offers approx. 3,000+/- sq.ft.of living space on one level! The home's open concept design, presents a sophisticated elegance with a superb layout consisting of 3 bedrooms, 3.5 baths with family room and study. An abundance of natural light spans across 50' +/- of frontage overlooking the tree-lined Commonwealth Mall and Back Bay skyline. Attention to detail is evident with intricate millwork, custom cabinetry and many built-ins throughout. The living area sightline spans from the fireplaced living room, dining and family rooms through to the chef's kitchen w/island and breakfast bar. Each of the 3 bedrooms offer ensuite baths. Hardwood floors throughout. Direct elevator access to residence and 2 garage parking spaces

Last Agent to Sell the Property

Karen Christie

Douglas Elliman Real Estate - Park Plaza Listed on: 08/27/2025

Douglas Elliman Real Estate - Park Plaza

Co-Listed By

Luxury Resort Living / The Christie Gro

Douglas Elliman Real Estate - Park Plaza

Last Buyer's Agent

Tracy Campion

Campion & Company Fine Homes Real Estate

Property Details

Home Type

  • Condominium

Est. Annual Taxes

  • $63,200

Year Built

  • Built in 1910

HOA Fees

  • $2,785 Monthly HOA Fees

Parking

  • 2 Car Attached Garage
  • Tuck Under Parking
  • Garage Door Opener

Home Design

  • Brownstone
  • Entry on the 4th floor

Interior Spaces

  • 2,954 Sq Ft Home
  • 1-Story Property
  • Open Floorplan
  • Crown Molding
  • Tray Ceiling
  • Recessed Lighting
  • Decorative Lighting
  • Light Fixtures
  • Arched Doorways
  • Entrance Foyer
  • Living Room with Fireplace
  • Library

Kitchen

  • Breakfast Bar
  • Wine Cooler
  • Kitchen Island
  • Solid Surface Countertops

Flooring

  • Wood
  • Ceramic Tile

Bedrooms and Bathrooms

  • 3 Bedrooms
  • Linen Closet
  • Walk-In Closet
  • Double Vanity
  • Bathtub with Shower

Location

  • Property is near public transit

Utilities

  • Forced Air Heating and Cooling System
  • 5 Cooling Zones
  • 5 Heating Zones

Listing and Financial Details

  • Assessor Parcel Number 4870660

Community Details

Overview

  • Association fees include gas, water, sewer, insurance, maintenance structure, ground maintenance, snow removal, trash
  • 5 Units
  • 45 Commonwealth Community

Amenities

  • Medical Services
  • Shops
  • Elevator

Recreation

  • Park
  • Jogging Path

Property Details

Home Type

Condominium

Est. Annual Taxes

$63,200

Year Built

Built in 1910

Lot Details

0 Sq Ft Lot

HOA Fees

$2,785 per month

Parking

2

Listing Details

  • Property Type: Residential
  • Property Sub Type: Condominium
  • Structure Type: Brownstone
  • Year Built: 1910
  • Entry Level: 4
  • Year Built Details: Approximate
  • MLSPIN_BEACHFRONT_FLAG: No
  • Special Features: None
  • Stories: 1

Interior Features

  • Flooring: Flooring - Hardwood, Flooring - Stone/Ceramic Tile
  • Interior Amenities: Recessed Lighting, Bathroom - Half, Library, Foyer, 1/4 Bath
  • Fireplace Features: Living Room
  • Fireplace YN: Yes
  • Fireplaces: 1
  • Total Bedrooms: 3
  • Room Bedroom2 Features: Flooring - Hardwood
  • Room Bedroom3 Features: Flooring - Hardwood
  • Basement YN: No
  • Full Bathrooms: 3
  • Half Bathrooms: 1
  • Total Bathrooms: 4
  • Room Master Bedroom Features: Closet - Linen, Walk-In Closet(s), Flooring - Hardwood
  • Master Bathroom Features: Yes
  • Bathroom 1 Features: Bathroom - Double Vanity/Sink, Bathroom - With Tub & Shower, Flooring - Stone/Ceramic Tile
  • Bathroom 2 Features: Bathroom - With Tub & Shower, Flooring - Stone/Ceramic Tile
  • Bathroom 3 Features: Bathroom - With Tub & Shower, Flooring - Stone/Ceramic Tile
  • Room Dining Room Features: Flooring - Hardwood, Recessed Lighting, Crown Molding, Tray Ceiling(s)
  • Room Family Room Features: Flooring - Hardwood, Recessed Lighting
  • Room Kitchen Features: Flooring - Hardwood, Countertops - Stone/Granite/Solid, Kitchen Island, Breakfast Bar / Nook, Open Floorplan, Wine Chiller
  • Room Living Room Features: Flooring - Hardwood, Open Floorplan, Recessed Lighting, Lighting - Sconce, Lighting - Overhead, Archway, Crown Molding, Tray Ceiling(s)
  • Basement: N
  • Above Grade Finished Sq Ft: 2954
  • Living Area: 2954
  • Spa YN: No
  • Stories Total: 1
  • MAIN LO: AN4282
  • MAIN SO: BB5984

Exterior Features

  • Home Warranty YN: No
  • Waterfront YN: No

Garage/Parking

  • Garage Spaces: 2
  • Attached Garage YN: Yes
  • Carport Y N: No
  • Covered Parking Spaces: 2
  • Garage YN: Yes
  • Parking Features: Under, Garage Door Opener
  • Total Parking Spaces: 2

Utilities

  • Sewer: Public Sewer
  • Cooling: Central Air
  • Heating: Forced Air
  • Cooling Y N: Yes
  • Heating YN: Yes
  • Water Source: Public
  • HEAT ZONES: 5
  • COOLING ZONES: 5

Condo/Co-op/Association

  • Association Amenities: Elevator(s)
  • Association Fee: 8354.11
  • Association Fee Frequency: Quarterly
  • Community Features: Public Transportation, Shopping, Park, Walk/Jog Trails, Medical Facility, Highway Access, T-Station
  • Senior Community YN: No

Fee Information

  • Association Fee Includes: Gas, Water, Sewer, Insurance, Maintenance Structure, Maintenance Grounds, Snow Removal, Trash

Lot Info

  • Parcel Number: 4870660
  • Zoning: res
  • Farm Land Area Units: Square Feet
  • Lot Size Units: Acres

Tax Info

  • Tax Year: 2026
  • Tax Annual Amount: 63200

Multi Family

  • Number Of Units Total: 5
  • 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

Closed on
May 14, 2014
Sold by
Bought by
Current Estimated Value
$6,463,813
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
Collateral Analytics

Collateral Analytics Collateral Analytics AVMs (Automated Valuation Model) employ a number of statistical approaches combined with neighborhood-specific comparable selection guarantees the most up-to-date and precise valuations.

Not Available

Collateral Analytics does not have data for the current month. Please view the chart for historical values.

ICE

ICE Mortgage Technology ICE Mortgage Technology’s AVM (Automated Valuation Model) is a state-of-the-art online residential property valuation tool that provides a quick and accurate estimate of the value of almost any home in the U.S.

Not Available

ICE Mortgage Technology does not have data for the current month. Please view the chart for historical values.

First American

First American First American Data & Analytics’ next-generation AVM combines unrivaled data assets with a blended ensemble of valuation models to produce highly accurate, reliable valuations you can trust.

Not Available

First American does not have data for the current month. Please view the chart for historical values.

Quantarium

Quantarium Quantarium’s valuation service, repeatedly proven the industry’s most accurate and comprehensive, is supercharged with a self-learning and auto-tuning AI engine that continually becomes smarter and more accurate as it processes daily inputs from the industry’s leading RE data lake.

Not Available

Quantarium does not have data for the current month. Please view the chart for historical values.

Average Value
Not Available
List Price
Sold Price
Create a Home Valuation Report for This Property
The Home Valuation Report is an in-depth analysis detailing your home's value as well as a comparison with similar homes in the area

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
-- --
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
03/06/2026 03/06/26 Sold $5,900,000 -5.6% $1,997 / Sq Ft
01/16/2026 01/16/26 Pending -- -- --
12/01/2025 12/01/25 Price Changed $6,250,000 -7.4% $2,116 / Sq Ft
08/27/2025 08/27/25 For Sale $6,750,000 +62.7% $2,285 / Sq Ft
04/27/2012 04/27/12 Sold $4,150,000 -7.3% $1,405 / Sq Ft View Prior Sale
03/20/2012 03/20/12 Pending -- -- --
04/07/2010 04/07/10 For Sale $4,475,000 -- $1,515 / 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 $66,531 $5,745,300 $0 $5,745,300
2024 $61,067 $5,602,500 $0 $5,602,500
2023 $57,305 $5,335,700 $0 $5,335,700
2022 $56,914 $5,231,100 $0 $5,231,100
2021 $55,816 $5,231,100 $0 $5,231,100
2020 $56,731 $5,372,300 $0 $5,372,300
2019 $55,495 $5,265,200 $0 $5,265,200
2018 $52,047 $4,966,300 $0 $4,966,300
2017 $50,561 $4,774,400 $0 $4,774,400
2016 $49,083 $4,462,100 $0 $4,462,100
2015 $56,324 $4,651,000 $0 $4,651,000
2014 $52,152 $4,145,600 $0 $4,145,600
Source: Public Records

Agents Affiliated with this Home

  • Karen Christie

    Seller's Agent in 2026

    Karen Christie

    Douglas Elliman Real Estate - Park Plaza

    (888) 654-4778

    1 in this area

    4 Total Sales

    Karen Christie
    Section Image
  • Tracy Campion

    Buyer's Agent in 2026

    Tracy Campion

    Campion & Company Fine Homes Real Estate

    (617) 851-3506

    168 in this area

    344 Total Sales

    Tracy Campion
    Section Image

  • K

    Seller's Agent in 2012

    Karen Tedeman

    Coldwell Banker Realty - Boston

See All Agents

Map

Source: MLS Property Information Network (MLS PIN)

MLS Number: 73422504

MLS Property Information Network (MLS PIN)

APN: CBOS-000000-000005-002883-000008

Massachusetts Suffolk County Boston 02116 Back Bay

45 Commonwealth Ave Unit 4, Boston, MA

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

MLS Property Information Network (MLS PIN) The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information, and the Images, are for the personal, non-commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the Images, set forth herein.

Nearby Homes
Your Personal Tour Guide

Ask me questions while you tour the home.