451 Mansfield Avenue | Darien N/A

$6,985,000 | 7 Beds | 11 Baths (9 Full, 2 Half) | 9,058 Sq. Ft.

Set back from the road on 2.7 beautifully landscaped acres, 451 Mansfield Avenue offers the privacy, grandeur, and distinctive character of a true country estate. A sweeping circular drive introduces a grand residence distinguished by its striking stone facade and timeless architectural detailing, a substantial two-story guest house, and a magnificent outdoor setting centered around a 24' x 48' infinity-edge pool. Extensive custom stonework, elegant terraces, and lush grounds enhance the property's distinctive estate-like character. Extensively renovated in 2026, the residence features all- new mechanical systems, new windows, and thoughtfully redesigned interiors. Blending timeless architectural elegance with sophisticated contemporary luxury, the home offers approximately 9,000 square feet of finished living space, including a light-filled 1,600-square-foot walk-out lower level. Inside, a graceful, curved staircase rises from the herringbone-floored foyer, introducing beautifully proportioned rooms, distinctive millwork, and refined architectural detailing. Formal living and dining rooms, each with a custom marble fireplace, provide gracious entertaining spaces, while a richly paneled library with coffered ceiling and fireplace offers a distinguished private study. SmartMLS 24213571

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MLS Listing ID: 
SmartMLS 24213571
Building Details
Details about the building on a property.
Architectural Style: 
Colonial
Year Built: 
1999
Living Area: 
9,058
Interior: 
Sauna
Fireplaces: 
6
Construction
Foundation Details: 
Concrete
Roof: 
Slate
Exterior: 
Stone, Wood
Room Details
Details about the rooms in the building.
Total Rooms: 
15
Total Bedrooms: 
7
Total Bathrooms: 
11
Total Full-Bathrooms: 
9
Total Half-Bathrooms: 
2
Utilities
Information about utilities available on the property.
Heating System: 
Hot Air
Heating System Fuel: 
Propane
Cooling System: 
Central Air
Water Source: 
Public Water Connected
Sewer: 
Public Sewer Connected
Lot/Land Details
Details about the lots and land features included on the property.
Acres: 
2.7
Waterfront: 
0
Water Body Category: 
Not Applicable
Lot Features
Garage: 
Attached Garage
Pool: 
Gunite, Heated, Pool House, Infinity Edge, Salt Water, In Ground Pool
Public Record
Parcel Number: 
1975979
Annual Tax: 
$47,118.00
Property Zoning: 
R2
Listing Dates
Dates involved in the transaction.
Listing Entry Date/Time: 
10/13/2026
Contract Details
Details about the listing contract.
Possession: 
Immediate
Listing Participants
Participants (agents, offices, etc.) in the transaction.
Listing Agent Name: 
Naima Mazouzi
Listing Office Name: 
Eagle Eye Realty PLLC