17 Treadwell Ave, Westport — property record card
Single Family Res built in 1860, 3 bed, 2 bath, 1,186 ft² in Westport, appraised at $1,218,900 (assessed $853,200); last sold for $1,300,000 on June 12, 2025.
Rebuilt from the public Connecticut CAMA and Parcel Layer — not the official card. For the official card, with owner, photo and sketch, ask the Westport assessor’s office.
Parcel
| Location | 17 Treadwell Ave, Westport CT 06880 |
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| Parcel ID | B06056000 |
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| CAMA account | 83500-B06056000 |
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| Use | Single Family Res (state use code 101) |
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| Zone | A |
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| Planning region | Western Connecticut |
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Valuation — revaluation 2026
| Appraised (market value) | $1,218,900
land $863,000 · building $346,600 · outbuildings $9,300 |
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| Assessed (70%) | $853,200
land $604,100 |
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Land
| Lot size | 1.00 acres (43,560 ft²) |
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Building
| Year built | 1860 (effective 2004) |
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| Living area | 1,186 ft² |
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| Rooms | 6 |
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| Bedrooms | 3 |
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| Bathrooms | 2 full |
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| Condition | G+ |
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Sales
| Last sale | $1,300,000 — June 12, 2025 |
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What this means
- Connecticut taxes property at 70% of its appraised market value: the assessment $853,200 times the town mill rate gives the yearly tax.
- Westport last revalued in 2026. Towns revalue every five years; between two revaluations the appraisal stays the same even if the market moves.
- Assessed 23% below the median for this use in Westport ($1,105,400, 5,881 parcels).
- The last sale price is 7% 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.
The report for 17 Treadwell Ave
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