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Apartments (Generic)Residential

553 ISLINGTON ST

PORTSMOUTH, NH 03801
6
Beds
6
Baths
4,258 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
2021
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
19
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.$20,410 (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.$1,773,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$475,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,298,000

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
37
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.
50
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
85
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
20
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.26%
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.Apartments (Generic)
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyROCKINGHAM
Lot (acres)The size of the land the home sits on, from county records.0.17
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

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

M
Portsmouth Middle SchoolB
Middle · Grades 6–8 · 0.6 mi
H
Portsmouth High SchoolA+
High · Grades 9–12 · 0.9 mi
E
Little Harbour Elementary SchoolA
Elementary · Grades KG–5 · 1.0 mi

District: Portsmouth School District

Neighborhood · ZIP 03801These 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.138
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.98

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.41%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
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.24,014
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.808 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,161
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$136,932
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

553 Islington 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.

  • Among the largest homes in Islington Creek
  • Has a bigger lot than 93% of homes in Islington Creek
  • Among the newest homes in Islington Creek

How it measures up in Portsmouth 03801

The dot is this home. The mark in the middle is the typical home in Portsmouth 03801.

Living area4,258 ft²
SmallerTypical 1,521 ft²Bigger

Bigger than 98% of homes nearby

Lot size0.17 ac
SmallerTypical 0.22 acBigger

Bigger than 32% of homes nearby

Year built2021
OlderTypical 1962Newer

Newer than 96% of homes nearby

How 553 Islington St ranks against every home in each area.
MeasureThis homeIslington CreekPortsmouth 03801Rockingham County
Living areabigger than4,258 ft²almost all homes98% of homes97% of homes
Lot sizebigger than0.17 ac93% of homes32% of homes12% of homes
Year builtnewer than2021almost all homes96% of homes97% of homes

About 553 Islington St

When did 553 Islington St, Portsmouth, NH last sell?

553 Islington St, Portsmouth, NH last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 553 Islington St, Portsmouth, NH?

553 Islington St, Portsmouth, NH has 6 bedrooms, 6 bathrooms, 4,258 square feet of living space and a 0.17-acre lot.

When was 553 Islington St, Portsmouth, NH built?

553 Islington St, Portsmouth, NH was built in 2021, making it 5 years old. It is a condo/apartment home. The building has 2 stories.

What schools serve 553 Islington St, Portsmouth, NH?

553 Islington St, Portsmouth, NH is assigned to Portsmouth Middle School (middle), rated B; Portsmouth High School (high), rated A+; Little Harbour Elementary School (elementary), rated A. All sit in Portsmouth School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 553 Islington St, Portsmouth, NH compare to other homes in Portsmouth 03801?

Among the 8,130 homes in Portsmouth 03801, it is bigger than 98% of them (4,258 ft² against a typical 1,521 ft²), its lot is bigger than 32% of them (0.17 ac against a typical 0.22 ac) and it is newer than 96% of them (2021 against a typical 1962). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 553 Islington St, Portsmouth, NH?

The 2025 property tax bill for 553 Islington St, Portsmouth, NH was $20,410. The county assessed it at $1,773,200.

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