21 Douglas Road Lexington — Photo 1 of 37
$4,450,000
Investment Analysis — 21 Douglas Road
Lexington, MA 02421
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 5-bedroom in 02421 carries an estimated $5,560/mo in gross rent — about a 0.06% cap rate and $2,698/yr in estimated NOI at the $4,450,000 list price. Adjust every assumption in the calculator below.
Beds
5
Baths
6.5
SqFt
8,006
Style
Single Family
Built
2008
This extraordinary estate showcases exceptional architecture, craftsmanship, and amenities inside and out. Set amid meticulously landscaped grounds with a private and newly fenced back yard, two-tier bluestone patio with pergola, and a tranquil pond with waterfall. Inside, find beautiful custom millwork, soaring ceilings, rich Brazilian cherry flooring, designer Italian lighting, and exquisite finishes. The main level features a spectacular Great Room with an 18’ coffered ceiling and dramatic two-story curved wall of glass, alongside an elegant Living Room, Dining Room with adjoining Buffet, and inviting Den with natural fieldstone fireplace. The impressive chef's Kitchen and Pantry offer serious culinary functionality with top-of-the-line appliances and amenities, abundant custom cabinetry, stone countertops, two spacious islands, European-inspired detailing, and a sunny eat-in bay. Private first-floor Guest Quarters offer an en-suite Bath with French doors to the back yard. The interior balcony upstairs offers breathtaking views of the grand two-story Foyer and Great Room. The lavish Master Suite includes a spacious sitting room with fireplace, vaulted-ceiling marble Bathroom with radiant heat, and an expansive boutique-style walk-in closet. Three additional en-suite Bedrooms plus a Laundry Room complete the second floor. The third floor provides dedicated Office and Exercise space, while the finished lower level boasts a fully equipped Home Theater, Recreation Room, Den, full Bathroom, and extensive storage. Heated attached three-car Garage plus detached Carriage House - ideal for future Pool House or Accessory Dwelling Unit (ADU) - add exceptional parking, storage, and versatility. Beautifully sited on a sprawling lot in one of Lexington’s most desirable neighborhoods, minutes from shopping, dining, top schools, commuter routes, and miles of conservation.
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 8,006 sq ft principal dwelling). Lot size: 30,021 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 • Range • Oven • Dishwasher • Disposal • Microwave • Refrigerator • Freezer • Washer • Dryer • Wine Refrigerator • ENERGY STAR Qualified Dryer • ENERGY STAR Qualified Washer • Vacuum System • Range Hood • Plumbed For Ice Maker
Neighborhood
Conservation Area • Highway Access • House of Worship
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl First17 x 15
Flooring - Hardwood, Window(s) - Bay/Bow/Box, Recessed Lighting, Crown Molding
Dining Room
Lvl First15 x 14
Flooring - Hardwood, Window(s) - Bay/Bow/Box, Chair Rail, Recessed Lighting, Wainscoting, Lighting - Sconce, Lighting - Overhead, Crown Molding, Tray Ceiling(s)
Kitchen
Lvl Main,First28 x 20
Flooring - Hardwood, Window(s) - Bay/Bow/Box, Dining Area, Pantry, Countertops - Stone/Granite/Solid, Kitchen Island, Wet Bar, Open Floorplan, Recessed Lighting, Storage, Wine Chiller, Gas Stove, Lighting - Overhead, Crown Molding, Decorative Molding
Office
Lvl Third27 x 16
Flooring - Hardwood, Recessed Lighting, Window Seat
Family Room
Lvl First16 x 14
Ceiling Fan(s), Flooring - Hardwood, Recessed Lighting
Master Bedroom
Lvl Second28 x 18
Bathroom - Full, Bathroom - Double Vanity/Sink, Walk-In Closet(s), Closet/Cabinets - Custom Built, Flooring - Hardwood, Attic Access, Dressing Room, Recessed Lighting, Lighting - Overhead, Crown Molding, Pocket Door, Tray Ceiling(s)
Bedroom 2
Lvl Second15 x 14
Bedroom 3
Lvl Second17 x 15
Bathroom - Full, Ceiling Fan(s), Walk-In Closet(s), Flooring - Hardwood, Window(s) - Bay/Bow/Box, Recessed Lighting
Bedroom 4
Lvl Second16 x 15
Bathroom - Full, Ceiling Fan(s), Walk-In Closet(s), Flooring - Hardwood, Recessed Lighting, Lighting - Overhead
Bedroom 5
Lvl First15 x 14
Bathroom - Full, Ceiling Fan(s), Walk-In Closet(s), Closet, Flooring - Hardwood, French Doors, Exterior Access, Recessed Lighting, Lighting - Overhead
Bathroom 1
Lvl Second26 x 16
Bathroom - Full, Bathroom - Double Vanity/Sink, Bathroom - Tiled With Shower Stall, Bathroom - Tiled With Tub, Vaulted Ceiling(s), Closet - Linen, Walk-In Closet(s), Closet/Cabinets - Custom Built, Flooring - Stone/Ceramic Tile, Flooring - Marble, Window(s) - Stained Glass, Countertops - Stone/Granite/Solid, Jacuzzi / Whirlpool Soaking Tub, Double Vanity, Recessed Lighting, Steam / Sauna, Lighting - Sconce, Pocket Door
Bathroom 2
Lvl Second10 x 10
Bathroom - Tiled With Tub & Shower, Walk-In Closet(s), Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Lighting - Sconce
Bathroom 3
Lvl First13 x 7
Bathroom - Full, Bathroom - Tiled With Tub & Shower, Walk-In Closet(s), Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Recessed Lighting, Lighting - Sconce, Lighting - Overhead
Listing Agent: Elizabeth P. Crampton
Listing Office: Coldwell Banker Realty - Lexington
MLS® Number: 73569967
