21 Crowninshield Rd #21 Brookline — Photo 1 of 34
Recent Drop: $50,000
$2,349,000
Investment Analysis — 21 Crowninshield Rd #21
Brookline, MA 02446
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 4-bedroom in 02446 carries an estimated $5,630/mo in gross rent — about a 1.38% cap rate and $32,411/yr in estimated NOI at the $2,349,000 list price. Adjust every assumption in the calculator below.
Beds
4
Baths
3.5
SqFt
1,897
Style
Single Family
Built
2022
Newly staged!!! This mint condition 3+ bedroom, 3.5 bath corner townhouse is offered for the first time since it was built in 2022. The space has been thoughtfully updated with custom built-in shelving and a striking Italian Aqua Blue matte tile surround framing the gas fireplace—complementing the sun-drenched living room's white oak floors. The chef's kitchen boasts Caesarstone counters, a 5-burner Bertazzoni range, 48" Thermador refrigerator, and Bosch dishwasher, flowing seamlessly into a dining area perfect for gatherings. The generous primary suite features abundant closet space and an en-suite bath with glass shower and premium fixtures. A well-appointed guest bedroom, third-floor bedroom with private bath, and flexible bonus room round out the living space. Step outside to your private patio retreat. Two parking spaces—one garage with storage, one deeded driveway—add everyday convenience. Constructed by a respected family-owned builder with roots dating to 1936.
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 1,897 sq ft principal dwelling). Lot size: 1,897 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.
Estimates — not financial advice
These figures are illustrative estimates for informational purposes only — not an appraisal, valuation, or guarantee of rent, income, or returns, and not financial, tax, or investment advice. Rent is either the figure reported on the MLS listing — in-place rent that may differ from market and is not verified against the actual leases — or, where the listing reports none, an estimate from HUD Small Area Fair Market Rents, a government benchmark that may differ from actual market rent. Each figure is labelled with its source. Cap rate, NOI, and returns depend on the assumptions shown, which you can change. MLS and other third-party data may be inaccurate or out of date. Verify all figures independently and consult your own financial, tax, and legal advisors before making any investment decision.
Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Range • Dishwasher • Disposal • Microwave • Refrigerator • Washer • Dryer
Neighborhood
Public Transportation • Shopping • Park • T-Station • University
Geography
Property History
$2,349,000
Sep 1, 2026
MLS® 73570781
$2,349,000
Aug 31, 2026
MLS® 73490287
$2,349,000
Was $2,399,000
Jul 7, 2026
MLS® 73537709
$2,399,000
Jun 17, 2026
MLS® 73537709
$2,349,000
Mar 23, 2026
MLS® 73490287
Listing Agent: Bill Gehan
Listing Office: Campion & Company Fine Homes Real Estate
MLS® Number: 73537709