17 Sunnyside Avenue, Darien — property record card

Single family built in 1927, 3 bed, 2.5 bath, 1,378 ft² in Darien, appraised at $1,269,500 (assessed $888,650); last sold for $1,678,000 on March 25, 2026.

Rebuilt from the public Connecticut CAMA and Parcel Layer — not the official card. For the official card, with owner, photo and sketch, ask the Darien assessor’s office.

Parcel

Location	17 Sunnyside Avenue, Darien CT 06820
Parcel ID	27-086-00
CAMA account	18850-09608
Use	Single family (state use code 101)
Zone	R13
Planning region	Western Connecticut

Valuation — revaluation 2023

Appraised (market value)	$1,269,500 land $1,061,700 · building $207,800
Assessed (70%)	$888,650 land $743,190

Building

Year built	1927
Living area	1,378 ft²
Rooms	6
Bedrooms	3
Bathrooms	2 full, 1 half
Condition	AV

Sales

Last sale	$1,678,000 — March 25, 2026

What this means

Connecticut taxes property at 70% of its appraised market value: the assessment $888,650 times the town mill rate gives the yearly tax.
Darien last revalued in 2023. Towns revalue every five years; between two revaluations the appraisal stays the same even if the market moves.
Assessed 27% below the median for this use in Darien ($1,216,880, 6,138 parcels).
The last sale price is 32% above the appraisal.
Built before 1978: lead paint may be present; Connecticut law requires disclosure to a buyer or tenant.

Point at the centre of the parcel — not a survey.

Data: Connecticut CAMA and Parcel Layer (2026 collection, CC0), retrieved October 31, 2026. Sources and freshness. No owner names are published.

First page of a sample Connecticut Property Report

The report for 17 Sunnyside Avenue

This card shows what the assessor records. The report adds what lies around the parcel: FEMA flood zone, wetlands and watercourses, aquifer protection area, Natural Diversity Database areas, brownfields nearby and sewer service.

$19card · PDF within 24 h · you pay after receiving itSee the sample (PDF)

Order the report