
189 W Brookline St Boston — Photo 1 of 42
$7,750,000
Investment Analysis — 189 W Brookline St
Boston, MA 02118 — South End
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 6-bedroom in 02118 carries an estimated $3,480/mo in gross rent — about a -0.65% cap rate and $-50,197/yr in estimated NOI at the $7,750,000 list price. Adjust every assumption in the calculator below.
Beds
6
Baths
6
SqFt
4,320
Style
Single Family
Built
2021
An entire South End brownstone. One remarkable home. A truly distinctive opportunity in a market defined largely by condominium living, this offering presents the chance to own an entire classic bow-front brownstone on one of the South End’s most beautiful & coveted tree-lined streets. Currently configured as two meticulously renovated residences, a penthouse triplex & garden duplex, the property has been transformed to near-new construction standards, bringing together timeless architecture, tailored interiors & exceptional flexibility under one roof. For those seeking the scale, privacy & permanence of a true townhome, the property offers the opportunity to combine both residences into one substantial single-family home, with conversion plans available for review. The existing configuration also provides immediate flexibility for multigenerational living, extended family, guests, an au pair or the ability to occupy one residence while generating income from the other. The approximately 2,518 SF penthouse triplex offers 3+ beds & 3.5 baths across three beautifully considered levels. Soaring ceilings, abundant natural light, custom millwork, gas fireplaces & refined finishes define the interiors, while a designer kitchen with custom cabinetry & high-end appliances anchors the main entertaining level. A private balcony extends from the kitchen, while an expansive private roof deck offers Boston skyline views, a built-in grill, integrated sound & fire pit. The approximately 1,802 SF garden duplex offers 2 beds & 2.5 baths across two generous levels, with beautifully proportioned living & dining spaces, a gas fireplace, custom cabinetry, integrated storage & curated finishes throughout. The living space opens directly to a substantial private patio for seamless indoor-outdoor living. Together, the residences provide approximately 4,320 SF of finished interior space, private outdoor living at both the garden & rooftop levels & 2 direct-access parking spaces. Moments from acclaimed dining, cafés, parks, SoWa, boutiques, galleries & premier private schools, this is a rare opportunity to move beyond the traditional condo & own an entire South End brownstone, ready to live beautifully today or become one extraordinary home for the future.
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 4,320 sq ft principal dwelling). Lot size: 1,900 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
Neighborhood
Public Transportation • Shopping • Park • Walk/Jog Trails • Bike Path • Highway Access
Geography
Property History
$7,750,000
Sep 9, 2026
MLS® 73574746
$8,250,000
Aug 6, 2026
MLS® 73525666
$8,250,000
Aug 6, 2026
MLS® 73525662
$8,250,000
May 28, 2026
MLS® 73525666
$8,250,000
May 28, 2026
MLS® 73525662
Listing Agent: Ricardo Rodriguez & Associates Group
Listing Office: Coldwell Banker Realty - Boston
MLS® Number: 73574746

