Clark Weld House

Listing Tools

Exceptional 35' wide Penthouse overlooking tree lined Commonwealth Ave. Set atop of the Clark Weld House built in 1896 and gut renovated in 2010, this spacious triplex stuns as you step off of your direct elevator access into your double wide living room flanked by 2 custom marble fireplaces & 10' ceilings. On this level, there is a beautiful Chef's Kitchen w/ 2 dishwashers, Dining Room, Mahogany fireplaced Study & Butler's Pantry. On the second level, relax by the fireplace in the huge primary suite w/ a spa like bathroom en suite and 2 walk in closets.Three more bedrooms, full bath & laundry finish out this level. The top floor boasts a custom solarium w/ fridge, dishwasher, 1/2 bath & indoor/outdoor fireplace w/ french doors out to a 930sf wrap around roof deck w/ outdoor kitchen & bar. This developer's unit spared no expense during the renovations including marble baths w/ radiant heat, 5 fireplaces, private locked storage, Creston system, pre-wired speakers & two garage spaces.

More Info

Basic Information

  • Bedrooms4
  • Mls StatusActive
  • Bathroom4
  • Parcel Number 3359724
  • Unit NumberPH

Tax Information

  • Tax Assessed Value $8,836,100
  • Tax Year 2025
  • Taxes$102,322

Parking

  • Parking Spaces2
  • Covered Spaces 2
  • Garage YN Yes
  • Parking Features Attached, Under, Garage Door Opener, Assigned, Deeded

Rooms

  • Bathroom 1 First,7 x 6
  • Bathroom 2 Second,12 x 17
  • Bathroom 3 Second,12 x 6
  • Bathrooms Total Decimal 3
  • Bedroom 2 Second,15 x 12
  • Bedroom 3 Second,18 x 15
  • Bedroom 4 Second,15 x 12
  • Dining Room First,15 x 12
  • Family Room Third,25 x 15
  • Full Bath2
  • Half Baths2
  • Kitchen First,15 x 15
  • Living Room First,35 x 24
  • Master Bedroom Second,20

Basic Information

  • List Price$9,200,000
  • MLS Number73491112
  • Modification Date04/16/2026
  • Property SubTypeCondominium
  • Virtual TourView Tour

Location

  • NeighborhoodBack Bay
  • SubdivisionBack Bay
  • Address304 Commonwealth Avenue
  • Building Number304
  • CountySuffolk
  • StateMA
  • StreetCommonwealth Avenue
  • TownBoston
  • Zip02115

Building

  • Attached Garage YN Yes
  • BasementY
  • Building Area Units Square Feet
  • Common Walls No One Above
  • Construction Materials Stone
  • Entry Level 3
  • FireplaceYes
  • Fireplace Features Family Room, Living Room, Master Bedroom
  • Fireplaces Total 5
  • Garage Spaces2
  • Patio And Porch Features Deck - Roof
  • Property NameClark Weld House
  • Rooms11
  • Stories3
  • Utilities For Gas Range
  • Year Built1896
  • Year Built Details Approximate, Renovated Since
  • Year Built Effective 2010
  • Year Built Source Public Records

Interior

  • Flooring Carpet, Hardwood, Flooring - Hardwood
  • Interior Features
    • Bathroom
    • Bathroom - Half
    • Closet/Cabinets - Custom Built
    • Coffered Ceiling(s)
    • Elevator
    • Lighting - Sconce
    • Pedestal Sink
    • Recessed Lighting
    • Study

Exterior

  • Exterior Features Deck - Roof, City View(s), Professional Landscaping, Sprinkler System
  • RoofRubber

Utilities

  • Cooling Central Air
  • Cooling YN Yes
  • Heat SystemYes
  • Heating Central, Hydro Air, Fireplace
  • Sewer Public Sewer
  • Water Source Public

Property Information

  • Square Feet4,122
  • Building Area Source Master Deed
  • Living Area 4,122
  • Lot Size Units Acres
  • Structure Type Rowhouse
  • View YN Yes

Amenities

  • Amenities
    • Bike Path
    • Highway Access
    • House of Worship
    • Medical Facility
    • Park
    • Private School
    • Public Transportation
    • Shopping
    • T-Station
    • University
    • Walk/Jog Trails
  • Appliances IncludedRange, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer, Wine Refrigerator
  • Association Amenities Elevator(s)
  • Other AmenitiesFireplace
  • PetsYes w/ Restrictions
  • Security Features Intercom, Security System

Other

  • Association Fee $3,693
  • Association Fee Frequency Monthly
  • Association Fee Includes
    • Insurance
    • Maintenance Structure
    • Reserve Funds
    • Sewer
    • Snow Removal
    • Trash
    • Water
  • Date Listed03/25/2026
  • Farm Land Area Units Square Feet
  • Other Equipment Intercom
  • View Count4

Map Location

Driving Directions

Listed by Lisa Merriman Barth of Barth Real Estate

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

I agree to receive marketing and customer service calls and text messages from Castles Unlimited. To opt out, you can reply 'stop' at any time or click the unsubscribe link in the emails. Consent is not a condition of purchase. Msg/data rates may apply. Msg frequency varies. Privacy Policy.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

$

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.