870 Post Rd, Darien, CT 06820 Property Records

Darien Town property record for 870 Post Rd, Darien, CT 06820 · Last verified July 2026

Property Highlights

Property Type	Commercial > Office > Office Building
Architecture Style	Other
Year Built	Built 1910
Square Footage	3,782 sqft Gross Area
Lot Size	9,692 sqft (0.222 acres)
Last Sale	$2,000,000 (2024)
Tax Bill	$20,494.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`DARI M:71 B:7`
Alternative APN	`5418`

Interior

Building Area	3,782 sqft Gross Area
Stories	2 Stories

Exterior

Year Built	Built 1910
Effective Year Built	Effective 1910
Architectural Style	Other Style
Exterior Material	Wood Siding Exterior
Construction Type	Frame Construction
Lot Area	9,692 sqft (0.222 acres)

Utilities and HVAC

Heating System	Hot Water Heating

Location & Zoning

Account Number	5418
Street Address	870 POST RD
City	DARIEN
State	CT
Zip	06820-4635
Property Usage	Commercial Property Usage
Type	Commercial > Office > Office Building
Legal Block	7
Jurisdiction	DARIEN CT
Minor Civil Division	DARIEN
Census Blockgroup	1
Census Block	1010
Census Tract	30200

Owner

Source: Darien Town records · APN DARI M:71 B:7

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	Company Name on File
Mailing Address	265 POST RD, WESTPORT, CT
Owner Type	Owner is a Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Sep 30, 2024 · Amount on Record
Deed Sale	Sep 30, 2024 · Amount on Record
Prior Sale	Jun 12, 2008 · Amount on Record
Deed Doc Number	20241717
Deed Book / Page	1767 / 1054
Record Refreshed	Sep 20, 2026

September 2024: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	DARIEN CT
Recording Date	Sep 30, 2024
Property Address	870 POST RD, DARIEN, CT 06820-4635
Document Number	01767-1054
Book / Page	1767 / 1054
Instrument Date	Sep 30, 2024
Instrument	1717
Transaction Type	Transfer
Record Updated	Oct 04, 2025

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	265 POST RD, WESTPORT, CT

Mortgage

Document Number	0017671057
Date	Sep 30, 2024
Instrument	1767/1057

Lender

Name	FAIRFIELD COUNTY BANK
Type	Bank

Agreement

Type	Stand Alone First Mortgage
Amount	Amount Recorded

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 is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$20,494.00	$1,323,910 (+48.17%) Land $619,920 Building $703,990	$926,737 Land $433,944 Building $492,793
2024	$20,494.00 (+30.25%)
2023	$15,734.00 (+2.2%)	$893,480 (-) Land $563,570 Building $329,910
2022	$15,395.00	$893,480 Land $563,570 Building $329,910

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	Moderate
500-Year Floodplain	Yes
Special Flood Hazard Area	No
Nearest Special Flood Hazard Area	Zone AE, within 500 ft

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.