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CondominiumResidential

1 Harbour Pl

PORTSMOUTH, NH 03801
1916
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 191615 units1,067–3,343 ft²
$35M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$2.6M
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$1199
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+117.6%vs the Portsmouth ZIP median sale $/ft² ($551)

Sales Performance

—
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
0
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
0.0%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.

1 arms-length sales on record for this building.

Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.

Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
$958K$1.9M$2.8M$3.8M1,067 ft²1,522 ft²1,977 ft²2,433 ft²2,888 ft²3,343 ft²
1 bd2 bd3 bd
1 bed
3 units
2 bed
8 units
3 bed
4 units

Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.

$958K–$958K
1 unit
$1.4M–$1.5M
2 units
$1.9M–$2M
2 units
$2.4M–$2.5M
2 units
$2.7M–$3.1M
3 units
$3.1M–$3.2M
3 units
$3.8M–$3.8M
1 unit

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.73%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.73%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.15.0 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.100%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.31%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$3,604,417
Median tax billThe middle annual property tax bill among the building's units.$30,203
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0

Recent SalesThe latest recorded arms-length sales in the building, newest first.

Unit 4DMar 28, 2025$4,200,000

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.112 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
RoofThe main material covering the roof, such as asphalt shingle or tile.Roll Tar & Gravel
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.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.

M
Portsmouth Middle SchoolB
Middle · Grades 6–8 · 0.4 mi
E
Little Harbour Elementary SchoolA
Elementary · Grades KG–5 · 0.8 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%

All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.

1 Harbour Pl # 4a
2 bd · 2 ba · 1,673 ft²
$2.7M
1 Harbour Pl # 4b
2 bd · 2.5 ba · 2,477 ft²
$2.9M
1 Harbour Pl # 4c
2 bd · 2 ba · 1,111 ft²
$1.4M
1 Harbour Pl # 4d
3 bd · 3.5 ba · 3,210 ft²
$958K
1 Harbour Pl # 4f
2 bd · 2.5 ba · 2,350 ft²
$3.1M
1 Harbour Pl # 4g
1 bd · 2.5 ba · 1,713 ft²
$1.9M
1 Harbour Pl # 4h
1 bd · 2 ba · 1,073 ft²
1 Harbour Pl # 4i
2 bd · 2.5 ba · 1,910 ft²
$3.1M
1 Harbour Pl # 5a
3 bd · 3 ba · 2,082 ft²
$3.2M
1 Harbour Pl # 5b
3 bd · 3.5 ba · 3,343 ft²
$3.8M
1 Harbour Pl # 5c
3 bd · 3 ba · 3,264 ft²
$3.2M
1 Harbour Pl # 5d
2 bd · 2 ba · 1,913 ft²
$2M
1 Harbour Pl # 5e
2 bd · 2 ba · 1,905 ft²
$2.5M
1 Harbour Pl # 5g
2 bd · 2.5 ba · 2,264 ft²
$2.4M
1 Harbour Pl # 5h
1 bd · 1.5 ba · 1,067 ft²
$1.5M

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

About 1 Harbour Pl

How many units are in 1 Harbour Pl, Portsmouth, NH?

1 Harbour Pl, Portsmouth, NH has 15 residential units across built in 1916, according to county assessor records.

What is a unit at 1 Harbour Pl, Portsmouth, NH worth?

The median TopHap Estimate across the 15 units at 1 Harbour Pl, Portsmouth, NH is $2,601,816. That works out to $1199 per square foot. Units run from 1,067 to 3,343 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 1 Harbour Pl, Portsmouth, NH expensive for Portsmouth?

Units at 1 Harbour Pl, Portsmouth, NH carry a median of $1199 per square foot, 118% above the Portsmouth median of $551 per square foot.

How often do units sell at 1 Harbour Pl, Portsmouth, NH?

0 units at 1 Harbour Pl, Portsmouth, NH sold in the last 12 months, out of 1 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.

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