503 Middlesex Rd, Darien, CT 06820 Property Records

Darien Town property record for 503 Middlesex Rd, Darien, CT 06820 · Last verified July 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	5 Beds
Bathrooms	4.5 Baths
Year Built	Built 2018
Square Footage	4,548 sqft Living Area
Lot Size	89,734 sqft (2.06 acres)
Occupancy	Owner Occupied
Last Sale	$2,425,000 (2007)
Tax Bill	$28,875.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`DARI M:07 B:12`
Alternative APN	`10645`

Interior

Bedrooms	5 Beds
Full Baths	4.5 Baths
Partial Baths	1 Partial Baths
Total Rooms	10 Rooms
Building Area	4,548 sqft Living Area
1st Floor	1,798 sqft 1st Floor
Basement Area	450 sqft Basement
Unfinished Basement	450 sqft Unfinished
Stories	2 Stories
Fireplace	Fireplace
Fireplaces	1 Fireplaces

Exterior

Year Built	Built 1960
Effective Year Built	Effective 2018
Architectural Style	Colonial Style
Exterior Material	Wood Siding Exterior
Roof Construction	Gable Roof Construction
Roof Material	Asphalt Roof
Lot Area	89,734 sqft (2.06 acres)
Parking Spaces	1 Parking Spaces
Garage Type	Attached Garage
Pool Type	In-Ground Pool Pool Type
Deck Area	Deck Area

Utilities and HVAC

Cooling System	HVAC Cooling
Heating System	Forced Air with Air Conditioning Heating
Heating Fuel	Oil Heating Fuel

Location & Zoning

Account Number	10645
Street Address	503 MIDDLESEX RD
City	DARIEN
State	CT
Zip	06820-2521
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Block	12
Jurisdiction	DARIEN CT
Minor Civil Division	DARIEN
Census Blockgroup	2
Census Block	2011
Census Tract	30100

Owner

Source: Darien Town records · APN DARI M:07 B:12

Assessment roll updated June 25, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on File
Mailing Address	503 MIDDLESEX RD, DARIEN, CT 06820-2521
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	May 16, 2007 · Amount on Record
Deed Sale	May 16, 2007 · Amount on Record
Deed Book / Page	1291 / 298
Record Refreshed	Sep 20, 2026

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	DARIEN CT
Property Address	503 MIDDLESEX RD, DARIEN, CT 06820-2521
Transaction Type	Mortgage
Record Updated	May 13, 2021
Title Company	SERVICELINK

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	1715-611
Date	Apr 20, 2021
Book Page	1715/611

Lender

Name	KEY BANK NA
Type	Bank

Agreement

Type	Balloon Payment
Amount	Amount Recorded
Term	181 Months
Due	May 01, 2036

Tax Assessment & Valuation

Source: Darien Town records · Assessment roll updated June 25, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	Connecticut
County Subdivision	Darien Town
Unified School District	Darien School District (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$28,875.00	$1,865,290 (+20.84%) Land $736,190 Building $1,129,100	$1,305,703 Land $515,333 Building $790,370
2024	$28,875.00 (+6.23%)
2023	$27,182.00 (+2.2%)	$1,543,570 (-) Land $736,190 Building $807,380
2022	$26,596.00	$1,543,570 Land $736,190 Building $807,380

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, County delivery 09001C updated November 28, 2025 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Flood Hazard	Minimal
500-Year Floodplain	No
Special Flood Hazard Area	No

Wildfire

Wildfire Risk	Low above 20% of the US · above 55% of Connecticut
Wildfire Likelihood	About 1 in 10,000 per year
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

Values are read at the parcel center point; lenders make the official flood determination.