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Single Family ResidenceResidential
$309,316$460 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $150,000 on Dec 26, 2002

23 SOUTH ST

PUTNAM VALLEY, NY 10579
2
Beds
1
Baths
672 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.
1959
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$309K
$287K low$332K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$150,000 · Dec 26, 2002

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,310 (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.$262,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$70,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$191,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$262,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$267,653

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
24
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
63
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
95
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
16
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Cottage
CountyPutnam
Lot (acres)The size of the land the home sits on, from county records.0.14
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Raised (Unspecified)
HeatingThe type of heating system in the home.Hot Water

Transaction History(2)

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
Putnam Valley Elementary SchoolB+
Elementary · Grades KG–4 · 0.4 mi
H
Putnam Valley High SchoolA
High · Grades 9–12 · 1.0 mi
M
Putnam Valley Middle SchoolB-
Middle · Grades 5–8 · 1.1 mi

District: Putnam Valley Central School District

Neighborhood · ZIP 10579These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.92

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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.8,761
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.256 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,687
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$149,473
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.51 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

23 South 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.

  • Worth less than 98% of homes in Putnam Valley 10579
  • Costs more per square foot than 90% of homes in Putnam County
  • Among the smallest homes in Putnam County
  • Has a smaller lot than 94% of homes in Putnam Valley 10579

What homes are worth in Putnam Valley 10579

Each bar is how many homes fall in that price range. The marker is this home.

This home
$309K$1.2M

This home is worth more than 2% of homes in Putnam Valley 10579.

How it measures up in Putnam Valley 10579

The dot is this home. The mark in the middle is the typical home in Putnam Valley 10579.

Estimated value$309,316
CheaperTypical $617,427Pricier

Pricier than 2% of homes nearby

Price per ft²$460
CheaperTypical $346Pricier

Pricier than 88% of homes nearby

Living area672 ft²
SmallerTypical 1,806 ft²Bigger

Bigger than 2% of homes nearby

Lot size0.14 ac
SmallerTypical 1 acBigger

Bigger than 6% of homes nearby

Year built1959
OlderTypical 1964Newer

Newer than 44% of homes nearby

How 23 South St ranks against every home in each area.
MeasureThis homePutnam Valley 10579Putnam County
Estimated valuepricier than$309,3162% of homes6% of homes
Price per ft²pricier than$46088% of homes90% of homes
Living areabigger than672 ft²2% of homesalmost no homes
Lot sizebigger than0.14 ac6% of homes17% of homes
Year builtnewer than195944% of homes37% of homes

About 23 South St

How much is 23 South St, Putnam Valley, NY worth?

The TopHap Estimate for 23 South St, Putnam Valley, NY is $309,316 as of Aug 30, 2026. The likely range is $286,778 to $331,854. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 23 South St, Putnam Valley, NY last sell?

23 South St, Putnam Valley, NY last sold on Dec 26, 2002 for $150,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 23 South St, Putnam Valley, NY?

23 South St, Putnam Valley, NY has 2 bedrooms, 1 bathrooms, 672 square feet of living space and a 0.14-acre lot.

When was 23 South St, Putnam Valley, NY built?

23 South St, Putnam Valley, NY was built in 1959, making it 67 years old. It is a cottage home. The building has 1 story.

What schools serve 23 South St, Putnam Valley, NY?

23 South St, Putnam Valley, NY is assigned to Putnam Valley Elementary School (elementary), rated B+; Putnam Valley High School (high), rated A; Putnam Valley Middle School (middle), rated B-. All sit in Putnam Valley Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 23 South St, Putnam Valley, NY compare to other homes in Putnam Valley 10579?

Among the 3,716 homes in Putnam Valley 10579, it is worth more than 2% of them ($309,316 against a typical $617,427), its price per square foot is higher than 88% of them ($460 against a typical $346), it is bigger than 2% of them (672 ft² against a typical 1,806 ft²), its lot is bigger than 6% of them (0.14 ac against a typical 1 ac) and it is newer than 44% of them (1959 against a typical 1964). Measured against all of Putnam County, it is worth more than 6% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 23 South St, Putnam Valley, NY?

The 2025 property tax bill for 23 South St, Putnam Valley, NY was $7,310. The county assessed it at $262,300.

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