105 Olivia St, Derby — property record card
Commercial built in 1885, 3,054 ft² in Derby, appraised at $465,100 (assessed $325,570); last sold for $610,000 on April 30, 2025.
Parcel
| Location | 105 Olivia St, Derby CT 06418 |
|---|---|
| Parcel ID | 8-5 53 |
| CAMA account | 19550-942 |
| Use | Commercial |
| Zone | CDD |
| Planning region | Naugatuck Valley |
Valuation — revaluation 2025
| Appraised (market value) | $465,100 |
|---|---|
| Assessed (70%) | $325,570 |
Building
| Year built | 1885 |
|---|---|
| Living area | 3,054 ft² |
| Condition | 7 |
Sales
| Last sale | $610,000 — April 30, 2025 |
|---|
Within about 500 m (a third of a mile): 14 sites of the state brownfield inventory. Brownfields in Derby.
What this means
- Connecticut taxes property at 70% of its appraised market value: the assessment $325,570 times the town mill rate gives the yearly tax.
- Derby last revalued in 2025. Towns revalue every five years; between two revaluations the appraisal stays the same even if the market moves.
- The last sale price is 31% above the appraisal.

The report for 105 Olivia St
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)