Skip to content
Skip to content
TopHapOpen in map
Triplex (3 Units, Any Combination)Residential
Last sold for $249,100 on Sep 5, 2007

321 GRAND AVE

NEW HAVEN, CT 06513
5
Beds
3
Baths
2,687 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.
3,800 ft²
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
11
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$249,100 · Sep 5, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,965 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$174,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$26,530
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$147,770
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$174,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$249,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Triplex (3 Units, Any Combination)
CountySOUTH CENTRAL CONNECTICUT
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.1984
Lot (acres)The size of the land the home sits on, from county records.0.09
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
John S. Martinez SchoolD
Elementary · Grades KG–8 · 0.3 mi
H
Wilbur Cross High SchoolD-
High · Grades 9–12 · 1.1 mi

District: New Haven School District

Neighborhood · ZIP 06513These 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.143
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.120
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

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.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.21%
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.35,531
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,689 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$52,010
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$70,381
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Owner Tools

Do you own this home?
Claim this home

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

321 Grand Ave 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 88% of homes in New Haven 06513
  • Has a smaller lot than 96% of homes in South Central Connecticut County
  • Older than 92% of homes in South Central Connecticut County

How it measures up in New Haven 06513

The dot is this home. The mark in the middle is the typical home in New Haven 06513.

Living area2,687 ft²
SmallerTypical 1,292 ft²Bigger

Bigger than 88% of homes nearby

Lot size3,800 ft²
SmallerTypical 0.17 acBigger

Bigger than 10% of homes nearby

Year built1900
OlderTypical 1960Newer

Newer than 22% of homes nearby

How 321 Grand Ave ranks against every home in each area.
MeasureThis homeFair HavenNew Haven 06513South Central Connecticut County
Living areabigger than2,687 ft²67% of homes88% of homes87% of homes
Lot sizebigger than3,800 ft²26% of homes10% of homes4% of homes
Year builtnewer than190065% of homes22% of homes8% of homes

About 321 Grand Ave

When did 321 Grand Ave, New Haven, CT last sell?

321 Grand Ave, New Haven, CT last sold on Sep 5, 2007 for $249,100, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 321 Grand Ave, New Haven, CT?

321 Grand Ave, New Haven, CT has 5 bedrooms, 3 bathrooms, 2,687 square feet of living space and a 0.09-acre lot.

When was 321 Grand Ave, New Haven, CT built?

321 Grand Ave, New Haven, CT was built in 1900, making it 126 years old. The building has 3 stories.

What schools serve 321 Grand Ave, New Haven, CT?

321 Grand Ave, New Haven, CT is assigned to John S. Martinez School (elementary), rated D; Wilbur Cross High School (high), rated D-. All sit in New Haven School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 Grand Ave, New Haven, CT compare to other homes in New Haven 06513?

Among the 7,600 homes in New Haven 06513, it is bigger than 88% of them (2,687 ft² against a typical 1,292 ft²), its lot is bigger than 10% of them (3,800 ft² against a typical 0.17 ac) and it is newer than 22% of them (1900 against a typical 1960). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 321 Grand Ave, New Haven, CT?

The 2026 property tax bill for 321 Grand Ave, New Haven, CT was $6,965. The county assessed it at $174,300.

More homes on Grand Ave

Closest homes

More homes in New Haven 06513

Assigned schools

Explore the area

See this home in context

Open 321 Grand Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map