21 Rutland Sq Boston — Photo 1 of 39
$7,450,000
Investment Analysis — 21 Rutland Sq
Boston, MA 02118 — South End
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 5-bedroom in 02118 carries an estimated $3,480/mo in gross rent — about a -0.51% cap rate and $-38,206/yr in estimated NOI at the $7,450,000 list price. Adjust every assumption in the calculator below.
Beds
5
Baths
5
SqFt
4,315
Style
Single Family
Built
1860
Renovated Venetian Gothic beauty located on a much sought after South End Square – Rutland Square designed in the 19-Century around an English-style central garden park. This beautiful low stoop single family developed with a 4-story glass extension is comprised of 5 bedrooms (4 on the top two levels – a rare find), 4 bathrooms and 2 powder rooms, open concept kitchen flows naturally to the living/dining room, expansive family room, sitting room and separate library & office. Distinguishing features include 3 gas fireplaces, custom cabinetry & millwork, wired for home audio/surround sound, custom closets (tremendous amount of storage), designer/custom window treatments & rugs, 2 wet bars, high ceilings, 2 laundry locations, deck off the kitchen, roof deck, patio and direct access parking for 2 cars.
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 4,315 sq ft principal dwelling). Lot size: 1,307 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
Gas Water Heater • Tankless Water Heater • Oven • Dishwasher • Disposal • Microwave • Range • Refrigerator • Washer • Dryer • Wine Refrigerator • Range Hood • Wine Cooler • Plumbed For Ice Maker
Neighborhood
Public Transportation • Shopping • Park • Highway Access • T-Station
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl Main,Second17 x 17
Closet/Cabinets - Custom Built, Flooring - Hardwood, Window(s) - Bay/Bow/Box, Open Floorplan, Recessed Lighting, Lighting - Sconce, Crown Molding
Dining Room
Lvl Main,Second13 x 13
Closet/Cabinets - Custom Built, Flooring - Hardwood, Open Floorplan, Recessed Lighting, Crown Molding
Kitchen
Lvl Main,Second17 x 21
Bathroom - Half, Flooring - Hardwood, Pantry, Countertops - Upgraded, Kitchen Island, Wet Bar, Cabinets - Upgraded, Deck - Exterior, Exterior Access, Open Floorplan, Recessed Lighting, Slider, Stainless Steel Appliances, Wine Chiller, Lighting - Pendant, Crown Molding
Office
Lvl First7 x 9
Bathroom - Half, Flooring - Hardwood, Recessed Lighting
Family Room
Lvl Basement17 x 34
Bathroom - Full, Closet, Closet/Cabinets - Custom Built, Flooring - Hardwood, Wet Bar, Exterior Access, Open Floorplan, Recessed Lighting, Slider
Master Bedroom
Lvl Third17 x 16
Bathroom - Full, Bathroom - Double Vanity/Sink, Walk-In Closet(s), Closet, Flooring - Hardwood, Recessed Lighting, Lighting - Sconce, Crown Molding
Bedroom 2
Lvl Third11 x 16
Bedroom 3
Lvl Fourth Floor16 x 16
Fireplace, Closet, Closet/Cabinets - Custom Built, Flooring - Hardwood, Recessed Lighting, Crown Molding, Window Seat
Bedroom 4
Lvl Fourth Floor16 x 13
Closet, Flooring - Hardwood, Recessed Lighting, Crown Molding
Bedroom 5
Lvl Basement10 x 13
Closet, Flooring - Hardwood, Recessed Lighting
Bathroom 1
Lvl FirstBathroom - Half, Flooring - Hardwood, Countertops - Upgraded, Recessed Lighting, Lighting - Sconce
Bathroom 2
Lvl SecondBathroom - Half, Flooring - Hardwood, Recessed Lighting
Bathroom 3
Lvl Third7 x 10
Bathroom - Full, Bathroom - Double Vanity/Sink, Bathroom - With Shower Stall, Flooring - Stone/Ceramic Tile, Countertops - Upgraded, Cabinets - Upgraded, Recessed Lighting, Lighting - Sconce, Tray Ceiling(s)
Listing Agent: Sprogis Neale Doherty Team
Listing Office: Sprogis & Neale Real Estate
MLS® Number: 73575249
