Skip to content
Skip to content
TopHapOpen in map
Duplex (2 Units, Any Combination)Residential
Last sold for $78,600 on Mar 15, 2012

20 ALLISON ST

CONCORD, NH 03301
6
Beds
2.5
Baths
2,570 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.
0.16 ac
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.
2
StoriesHow many floors the home has above ground.
12
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.$78,600 · Mar 15, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,296 (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.$285,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$104,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$180,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$283,000

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.14
43
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.
25
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.9 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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyMERRIMACK
Lot (acres)The size of the land the home sits on, from county records.0.16
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
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
Mill Brook School
Elementary · Grades PK–2 · 2.2 mi
H
Concord High SchoolD+
High · Grades 9–12 · 4.2 mi
M
Rundlett Middle SchoolC-
Middle · Grades 6–8 · 5.0 mi

District: Concord School District

Neighborhood · ZIP 03301These 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.107
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.112

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.35,397
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.661 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,381
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$106,718
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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

20 Allison 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.

  • Bigger than 84% of homes in Concord 03301
  • Has a smaller lot than 92% of homes in Merrimack County
  • Older than 86% of homes in Merrimack County

How it measures up in Concord 03301

The dot is this home. The mark in the middle is the typical home in Concord 03301.

Living area2,570 ft²
SmallerTypical 1,580 ft²Bigger

Bigger than 84% of homes nearby

Lot size0.16 ac
SmallerTypical 0.34 acBigger

Bigger than 24% of homes nearby

Year built1900
OlderTypical 1963Newer

Newer than 25% of homes nearby

How 20 Allison St ranks against every home in each area.
MeasureThis homeEast ConcordConcord 03301Merrimack County
Living areabigger than2,570 ft²83% of homes84% of homes79% of homes
Lot sizebigger than0.16 ac14% of homes24% of homes8% of homes
Year builtnewer than190021% of homes25% of homes14% of homes

About 20 Allison St

When did 20 Allison St, Concord, NH last sell?

20 Allison St, Concord, NH last sold on Mar 15, 2012 for $78,600, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 20 Allison St, Concord, NH?

20 Allison St, Concord, NH has 6 bedrooms, 2.5 bathrooms, 2,570 square feet of living space and a 0.16-acre lot.

When was 20 Allison St, Concord, NH built?

20 Allison St, Concord, NH was built in 1900, making it 126 years old. It is a duplex single home. The building has 2 stories.

What schools serve 20 Allison St, Concord, NH?

20 Allison St, Concord, NH is assigned to Mill Brook School (elementary); Concord High School (high), rated D+; Rundlett Middle School (middle), rated C-. All sit in Concord School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Allison St, Concord, NH compare to other homes in Concord 03301?

Among the 8,695 homes in Concord 03301, it is bigger than 84% of them (2,570 ft² against a typical 1,580 ft²), its lot is bigger than 24% of them (0.16 ac against a typical 0.34 ac) and it is newer than 25% of them (1900 against a typical 1963). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 20 Allison St, Concord, NH?

The 2025 property tax bill for 20 Allison St, Concord, NH was $8,296. The county assessed it at $285,000.

More homes on Allison St

Closest homes

More homes in Concord 03301

Assigned schools

Explore the area

See this home in context

Open 20 Allison St 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