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CondominiumResidential
$789,729$600 / 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 86How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

73 PROSPECT ST

PORTSMOUTH, NH 03801
Building report
2
Beds
2
Baths
1,317 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.
1890
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$790K
$676K low$903K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$168,819
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$135,055
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.79%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$620,910
CMG MORTGAGE INC · 6.75% 1 · recorded Mar 14, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,633 (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.$750,000 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$750,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$757,625

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.48
78
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
7
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.
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.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyROCKINGHAM
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.

E
New Franklin Elementary SchoolA
Elementary · Grades KG–5 · 0.4 mi
M
Portsmouth Middle SchoolB
Middle · Grades 6–8 · 0.7 mi
H
Portsmouth High SchoolA+
High · Grades 9–12 · 1.4 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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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

73 Prospect 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 more than 76% of homes in Rockingham County
  • Costs more per square foot than 92% of homes in Rockingham County
  • Smaller than 74% of homes in Christian Shore / Creek
  • Older than 95% of homes in Rockingham County

What homes are worth in Portsmouth 03801

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

This home
$273K$2.6M

This home is worth more than 50% of homes in Portsmouth 03801.

How it measures up in Portsmouth 03801

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

Estimated value$789,729
CheaperTypical $786,780Pricier

Pricier than 50% of homes nearby

Price per ft²$600
CheaperTypical $543Pricier

Pricier than 64% of homes nearby

Living area1,317 ft²
SmallerTypical 1,518 ft²Bigger

Bigger than 39% of homes nearby

Year built1890
OlderTypical 1962Newer

Newer than 13% of homes nearby

How 73 Prospect St ranks against every home in each area.
MeasureThis homeChristian Shore / CreekPortsmouth 03801Rockingham County
Estimated valuepricier than$789,72945% of homes50% of homes76% of homes
Price per ft²pricier than$60067% of homes64% of homes92% of homes
Living areabigger than1,317 ft²26% of homes39% of homes30% of homes
Year builtnewer than189030% of homes13% of homes5% of homes

About 73 Prospect St

How much is 73 Prospect St, Portsmouth, NH worth?

The TopHap Estimate for 73 Prospect St, Portsmouth, NH is $789,729 as of Jul 14, 2026. The likely range is $676,275 to $903,183. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 73 Prospect St, Portsmouth, NH last sell?

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

How big is 73 Prospect St, Portsmouth, NH?

73 Prospect St, Portsmouth, NH has 2 bedrooms, 2 bathrooms and 1,317 square feet of living space.

When was 73 Prospect St, Portsmouth, NH built?

73 Prospect St, Portsmouth, NH was built in 1890, making it 136 years old. It is a condo/apartment home. The building has 2 stories.

What schools serve 73 Prospect St, Portsmouth, NH?

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

How does 73 Prospect St, Portsmouth, NH compare to other homes in Portsmouth 03801?

Among the 8,130 homes in Portsmouth 03801, it is worth more than 50% of them ($789,729 against a typical $786,780), its price per square foot is higher than 64% of them ($600 against a typical $543), it is bigger than 39% of them (1,317 ft² against a typical 1,518 ft²) and it is newer than 13% of them (1890 against a typical 1962). Measured against all of Rockingham County, it is worth more than 76% 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 73 Prospect St, Portsmouth, NH?

The 2025 property tax bill for 73 Prospect St, Portsmouth, NH was $8,633. The county assessed it at $750,000.

Closest homes

More homes in Portsmouth 03801

Assigned schools

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