451 Mansfield Avenue

Darien, CT 06820

$6,985,000Active$104,775 Buyer Rebate*
7
beds
10
baths
9,058
SF

Our Take

451 Mansfield Avenue is set back on 2.7 landscaped acres, with a circular drive leading to a residence with a stone facade and architectural detailing. The property includes a two-story guest house, terraces, custom stonework, lush grounds, and a 24-by-48-foot infinity-edge pool. The residence was extensively renovated in 2026 with new mechanical systems, new windows, and redesigned interiors. Inside, a curved staircase, herringbone-floored foyer, millwork, formal entertaining rooms, and a paneled library with coffered ceiling and fireplace shape the main living spaces.

Property Details

Listing Facts

Acres
2.7
Year built
1999
Taxes (July 2025-June 2026)
$47,118 (July 2025-June 2026)
Price/SF
$771
Days on Market
15 Days
MLS number
24213571

Highlights

  • Set-back setting on 2.7 landscaped acres
  • Striking stone facade and circular drive
  • Two-story guest house
  • 24-by-48-foot infinity-edge pool
  • Custom stonework and elegant terraces
  • 2026 renovation with new mechanical systems
  • Curved staircase and herringbone-floored foyer
  • Paneled library with coffered ceiling and fireplace
Read the full listing description

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.

Schools

Elementary
Per Board of Ed
Middle
Not provided
High
Per Board of Ed

School assignments as reported by SmartMLS.

Price History

DateEventPrice
Listed$6,985,000

Listing Agent

Eagle Eye Realty PLLC · (860) 263-9102
Naima Mazouzi · (860) 754-7651

Map

451 Mansfield Avenue, Darien, CT 06820

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*Estimate assumes a 2.5% buyer-agent commission and a 60% rebate. Actual savings depend on final purchase price and commission received.

SmartMLS · Listing #24213571 · Active

Listing data checked: Oct 28, 2026, 6:00 AM EDT.

Listing information is deemed reliable but not guaranteed. Cress commentary is separate from the MLS listing description. Contact Cress about a correction.

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451 Mansfield Avenue · Darien, CT

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