Triplex (3 Units, Any Combination)Residential
31 GILBERT ST
DERBY, CT 06418
4
Beds
3
Baths
2,512 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1910
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
13
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,941 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$114,380 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,910
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$94,470
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$114,380
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$80,066
Climate Risk
Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.44
21
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
4
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
61
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
97
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
39
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.48%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal
Scores 0–100; higher = greater projected risk.
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Triplex (3 Units, Any Combination)
CountyNAUGATUCK VALLEY
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1985
Lot (acres)The size of the land the home sits on, from county records.0.14
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
EHM
Bradley SchoolD+
Elementary · Grades KG–5 · 0.8 mi
Derby High SchoolF
High · Grades 9–12 · 1.6 mi
Derby Middle SchoolC
Middle · Grades 6–8 · 1.7 mi
District: Derby School District
Neighborhood · ZIP 06418These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.109
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.113
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69
Index scale: 100 = US average (tick). Lower is better.
Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.12,707
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,336 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,431
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,707
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%
Owner Tools
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How this home compares
31 Gilbert St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.
- Bigger than 90% of homes in Derby 06418
- Has a smaller lot than 90% of homes in Naugatuck Valley County
- Older than 92% of homes in Naugatuck Valley County
How it measures up in Derby 06418
The dot is this home. The mark in the middle is the typical home in Derby 06418.
Living area2,512 ft²
SmallerTypical 1,392 ft²Bigger
Bigger than 90% of homes nearby
Lot size0.14 ac
SmallerTypical 0.25 acBigger
Bigger than 16% of homes nearby
Year built1910
OlderTypical 1959Newer
Newer than 18% of homes nearby
| Measure | This home | Derby 06418 | Naugatuck Valley County |
|---|---|---|---|
| Living areabigger than | 2,512 ft² | 90% of homes | 85% of homes |
| Lot sizebigger than | 0.14 ac | 16% of homes | 10% of homes |
| Year builtnewer than | 1910 | 18% of homes | 8% of homes |
About 31 Gilbert St
When did 31 Gilbert St, Derby, CT last sell?
31 Gilbert St, Derby, CT last sold on Jan 1, 1900, according to the county's recorded deed.
How big is 31 Gilbert St, Derby, CT?
31 Gilbert St, Derby, CT has 4 bedrooms, 3 bathrooms, 2,512 square feet of living space and a 0.14-acre lot.
When was 31 Gilbert St, Derby, CT built?
31 Gilbert St, Derby, CT was built in 1910, making it 116 years old. The building has 2 stories.
What schools serve 31 Gilbert St, Derby, CT?
31 Gilbert St, Derby, CT is assigned to Bradley School (elementary), rated D+; Derby High School (high), rated F; Derby Middle School (middle), rated C. All sit in Derby School District. Attendance boundaries change — confirm with the district before relying on an assignment.
How does 31 Gilbert St, Derby, CT compare to other homes in Derby 06418?
Among the 3,850 homes in Derby 06418, it is bigger than 90% of them (2,512 ft² against a typical 1,392 ft²), its lot is bigger than 16% of them (0.14 ac against a typical 0.25 ac) and it is newer than 18% of them (1910 against a typical 1959). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 31 Gilbert St, Derby, CT?
The 2025 property tax bill for 31 Gilbert St, Derby, CT was $4,941. The county assessed it at $114,380.
More homes on Gilbert St
- 47 Gilbert St5 bd · 3 ba · 1,472 ft² · Sold $375K · Aug 2023
- 29 Gilbert St4 bd · 2 ba · 1,888 ft² · Sold $515K · Oct 2021
- 39 Gilbert St # 415 bd · 3 ba · 2,304 ft² · Sold $88K · Mar 2003
- 53 Gilbert St8 bd · 3 ba · 2,784 ft² · Sold $126K · Jul 2001
- 44 Gilbert St5 bd · 2 ba · 2,617 ft² · Sold Jan 1900
- 24 Gilbert St4 bd · 2 ba · 1,698 ft² · Sold Jan 1900
- 23 Gilbert St # 255 bd · 2 ba · 1,596 ft² · Sold Jan 1900
- 45 Gilbert St6 bd · 1.5 ba · 1,656 ft² · Sold Jan 1900
- 16 Gilbert St # 186 bd · 2 ba · 2,957 ft² · Sold Jan 1900
Closest homes
- 29 Gilbert St47 ft · 4 bd · 2 ba · 1,888 ft² · Sold $515K · Oct 2021
- 39 Gilbert St73 ft · 5 bd · 3 ba · 2,304 ft² · Sold $88K · Mar 2003
- 13 High St90 ft · 4 bd · 2 ba · 1,728 ft² · Sold Jan 1900
- 23 Gilbert St96 ft · 5 bd · 2 ba · 1,596 ft² · Sold Jan 1900
- 18 New Haven Ave169 ft · 6 bd · 3 ba · 2,882 ft² · Sold $81K · Sep 2016
- 24 Gilbert St150 ft · 4 bd · 2 ba · 1,698 ft² · Sold Jan 1900
- 52 Prospect St165 ft · 4 bd · 2 ba · 0.32 ac · Sold $745K · Dec 2024
- 45 Gilbert St195 ft · 6 bd · 1.5 ba · 1,656 ft² · Sold Jan 1900
More homes in Derby 06418
- 22 Summit Cmns$325K2 bd · 1.5 ba · 1,102 ft² · Sold $320K · Sep 2026
- 118 Bradley Ter$294K2 bd · 1 ba · 841 ft² · Sold $147K · Sep 2026
- 111 Hawthorne Ave$350K2 bd · 1 ba · 1,132 ft² · Sold $365K · Aug 2026
- 444 New Haven Ave5 bd · 3 ba · 2,709 ft² · Sold $550K · Aug 2026
- 22 Camptown Ave4 bd · 2 ba · 1,280 ft² · Sold $195K · Aug 2026
- 11 Jeanetti Dr$575K4 bd · 3.5 ba · 2,400 ft² · Sold $575K · Aug 2026
- 75 Commodore Cmns$273K2 bd · 1.5 ba · 1,116 ft² · Sold $250K · Aug 2026
- 116 Shagbark Dr$314K3 bd · 2.5 ba · 1,536 ft² · Sold $310K · Aug 2026
- 242 Marshall Ln$365K3 bd · 1 ba · 960 ft² · Sold $365K · Aug 2026
- 59 Prairie Ave$371K3 bd · 1 ba · 1,040 ft² · Sold $420K · Aug 2026
- 233 Derby Ave$224K2 bd · 1.5 ba · 943 ft² · Sold $3.4M · Aug 2026
- 82 Sunset Dr$387K2 bd · 1 ba · 924 ft² · Sold $385K · Jul 2026
Assigned schools
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