451 Mansfield Avenue, Darien, CT 06820 | RYZE Realty Group
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451 Mansfield Avenue, Darien, CT 06820

Single Family For Sale

451 Mansfield Avenue, Darien, CT
Active
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$6,985,000
Est. Payment: $44,654/mo  Get Pre-Approved
7
Beds
11
Baths
9,058
Sq Ft
2.7
Acres
1999
Yr Built

About This Home

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.

Listed by Naima Mazouzi (860) 754-7651 with Eagle Eye Realty PLLC (860) 263-9102

Listing Snapshot

Price $6,985,000 Days on Our Site 9 days
Property Tax $47,118/yr Style Colonial
Year Built 1999 Total Sq Ft 9,058
Lot Size 2.7 acres HOA Fees N/A
Bedrooms 7 Full Bathrooms 9
Total Rooms 15 Half Baths 2

Key Features

Interior
  • Sauna
Appliances
  • Gas Range
  • Wall Oven
  • Microwave
  • Range Hood
  • Subzero
  • Dishwasher
  • Washer
  • Electric Dryer
  • Wine Chiller
Outdoor
  • Gunite
  • Heated
  • Pool House
  • Infinity Edge
  • Salt Water
  • In Ground Pool

Structure & Parking

Construction Frame
Roof Slate
Garage Spaces 4
Garage Type Attached Garage
Below Grade 1,586 sq ft

Systems & Utilities

Heat Hot Air
Fuel Propane
Cooling Central Air
Hot Water Propane, Domestic
Water Public Water Connected
Sewer Public Sewer Connected

Schools

Elem Per Board of Ed
High Per Board of Ed

Mortgage Calculator

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Est. Monthly Payment —
Principal & Interest —
Est. Property Tax $3,927/mo
Est. Home Insurance —

Estimate only. Contact a lender for accurate figures.

Listing History

Date Event Price
Oct 13, 2026 Listed $6,985,000

Frequently Asked Questions

How much does 451 Mansfield Avenue in Darien, CT cost?
This property is listed at $6,985,000, which works out to $771 per square foot.
How many bedrooms does 451 Mansfield Avenue have?
This home has 7 bedrooms and 11 bathrooms.
What is the square footage of 451 Mansfield Avenue?
The home is 9,058 square feet, situated on 2.7 acres.
When was 451 Mansfield Avenue in Darien built?
This property was built in 1999.
Is 451 Mansfield Avenue, Darien, CT still available?
The current MLS status of this property is "Active". Contact RYZE Realty Group for the latest availability.
What school district is 451 Mansfield Avenue, Darien in?
This home is served by the Darien public school system, with Per Board of Ed as the elementary school and Per Board of Ed as the high school.
How do I schedule a tour of 451 Mansfield Avenue, Darien, CT?
Contact RYZE Realty Group to schedule a private showing. You can submit a tour request directly on this page or call our office.

Listing Agent

Naima Mazouzi · (860) 754-7651

Eagle Eye Realty PLLC · (860) 263-9102

MLS# 24213571 · Data provided by SmartMLS. Information deemed reliable but not guaranteed.
Listing updated Oct 13, 2026 6:16 AM UTC

Est. $44,654/mo
$6,985,000
7 bd · 11 ba · 9,058 sqft
451 Mansfield Avenue, Darien, CT 06820