5 Walnut Street Lexington — Photo 1 of 34
Recent Drop: $125,000
$2,450,000
Investment Analysis — 5 Walnut Street
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 0.79% cap rate and $19,255/yr in estimated NOI at the $2,450,000 list price. Adjust every assumption in the calculator below.
Beds
5
Baths
5
SqFt
5,198
Style
Single Family
Built
2006
Welcome to 5 Walnut St, a refined young Arts & Crafts Colonial blending European elegance with modern luxury. Offering 5,200 sq ft, this thoughtfully designed home features five spacious bedrooms and five full baths, ideal for comfortable, flexible living. Sunlit interiors showcase hardwood floors, custom millwork, 9' ceilings, and an open layout. The chef’s kitchen includes Thermador appliances, a Sub-Zero paneled fridge, induction cooktop, large island, and walk-in pantry, flowing into inviting living and dining spaces with a wood-burning fireplace. The main level offers an office and guest suite; upstairs includes three bedrooms, laundry, and a luxurious primary suite with spa bath and dual closets. A finished walkout lower level adds versatile space. Set on a beautifully landscaped ¾-acre lot abutting conservation land with a deep backyard, two-car garage, and expansion potential in the walk-up attic. Just about 1 mile to Lexington Center with easy access to Boston, Routes 2 and 95
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 5,198 sq ft principal dwelling). Lot size: 32,614 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.
Immersive Experience
Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Water Heater • Oven • Dishwasher • Disposal • Microwave • Refrigerator • ENERGY STAR Qualified Dryer • ENERGY STAR Qualified Washer • Vacuum System • Range Hood • Cooktop • Plumbed For Ice Maker
Neighborhood
Shopping • Walk/Jog Trails • Medical Facility • Conservation Area • Highway Access • House of Worship
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl First20 x 18
Coffered Ceiling(s), Flooring - Hardwood, High Speed Internet Hookup, Open Floorplan, Recessed Lighting, Lighting - Sconce
Dining Room
Lvl First19 x 14
Flooring - Hardwood, Deck - Exterior, Open Floorplan, Lighting - Sconce, Lighting - Pendant
Kitchen
Lvl First15 x 16
Flooring - Hardwood, Dining Area, Pantry, Countertops - Stone/Granite/Solid, Kitchen Island, Open Floorplan, Recessed Lighting, Stainless Steel Appliances
Office
Lvl First12 x 16
Closet, Flooring - Hardwood, High Speed Internet Hookup, Lighting - Overhead
Primary Bedroom
Lvl Second18 x 15
Bathroom - Full, Ceiling Fan(s), Walk-In Closet(s), Closet/Cabinets - Custom Built, Flooring - Hardwood, High Speed Internet Hookup, Recessed Lighting, Lighting - Overhead, Tray Ceiling(s)
Bedroom 2
Lvl Second12 x 15
Bedroom 3
Lvl Second12 x 18
Closet, Flooring - Hardwood, High Speed Internet Hookup, Lighting - Overhead
Bedroom 4
Lvl Second17 x 17
Closet, Flooring - Hardwood, High Speed Internet Hookup, Lighting - Overhead
Bedroom 5
Lvl First12 x 16
Closet, Flooring - Hardwood, High Speed Internet Hookup, Lighting - Overhead
Bathroom 1
Lvl First9 x 9
Bathroom - Full, Bathroom - With Shower Stall, Closet - Linen, Flooring - Marble, Pedestal Sink
Bathroom 2
Lvl Second16 x 12
Bathroom - Full, Bathroom - Tiled With Shower Stall, Cathedral Ceiling(s), Flooring - Stone/Ceramic Tile, Jacuzzi / Whirlpool Soaking Tub, Double Vanity, Pedestal Sink
Bathroom 3
Lvl Second15 x 8
Bathroom - Full, Bathroom - Tiled With Tub & Shower, Closet - Linen, Flooring - Stone/Ceramic Tile, Double Vanity, Pedestal Sink
Property History
$2,450,000
Was $2,498,000
Sep 24, 2026
MLS® 73513713
$2,498,000
Was $2,525,000
Aug 3, 2026
MLS® 73513713
$2,525,000
Was $2,575,000
Jul 13, 2026
MLS® 73513713
$2,575,000
May 6, 2026
MLS® 73513713
$2,648,000
Jul 23, 2025
MLS® 73378336
$2,648,000
May 28, 2025
MLS® 73378336
Listing Agent: The Carter Team
Listing Office: Barrett Sotheby's International Realty
MLS® Number: 73513713