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Single Family ResidenceResidential
$456,708$318 / 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 96How 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
Last sold for $203,533 on Mar 17, 2016

18 SOUTH ST

CONCORD, NH 03301
4
Beds
1.5
Baths
1,437 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.
3,485 ft²
Lot SizeThe size of the land the home sits on, from county records.
1840
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$457K
$439K low$474K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$203,533 · Mar 17, 2016
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.$293,908
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$235,126
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.41%
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.$162,800
MORTGAGE NTWK · recorded Mar 17, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,847 (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.$303,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$88,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$215,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$303,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$377,150

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.17
40
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
22
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.8 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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Cape Cod
CountyMERRIMACK
Lot (acres)The size of the land the home sits on, from county records.0.08
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Steam
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

Transaction History(6)

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.

H
Concord High SchoolC-
High · Grades 9–12 · 0.6 mi
M
Rundlett Middle SchoolB-
Middle · Grades 6–8 · 0.8 mi
E
Abbot-Downing SchoolC+
Elementary · Grades KG–5 · 0.8 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.35,411
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.$88,373
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$106,711
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
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

18 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.

  • Costs more per square foot than 79% of homes in Merrimack County
  • Smaller than 67% of homes in Merrimack County
  • Has a smaller lot than 96% of homes in Merrimack County
  • Older than 98% of homes in South End

What homes are worth in Concord 03301

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

This home
$149K$880K

This home is worth more than 60% of homes in Concord 03301.

How it measures up in Concord 03301

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

Estimated value$456,708
CheaperTypical $423,870Pricier

Pricier than 60% of homes nearby

Price per ft²$318
CheaperTypical $270Pricier

Pricier than 77% of homes nearby

Living area1,437 ft²
SmallerTypical 1,584 ft²Bigger

Bigger than 43% of homes nearby

Lot size3,485 ft²
SmallerTypical 0.34 acBigger

Bigger than 11% of homes nearby

Year built1840
OlderTypical 1964Newer

Newer than 2% of homes nearby

How 18 South St ranks against every home in each area.
MeasureThis homeSouth EndConcord 03301Merrimack County
Estimated valuepricier than$456,70862% of homes60% of homes50% of homes
Price per ft²pricier than$31874% of homes77% of homes79% of homes
Living areabigger than1,437 ft²38% of homes43% of homes33% of homes
Lot sizebigger than3,485 ft²5% of homes11% of homes4% of homes
Year builtnewer than18402% of homes2% of homes4% of homes

About 18 South St

How much is 18 South St, Concord, NH worth?

The TopHap Estimate for 18 South St, Concord, NH is $456,708 as of Jul 14, 2026. The likely range is $439,135 to $474,281. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 South St, Concord, NH last sell?

18 South St, Concord, NH last sold on Mar 17, 2016 for $203,533, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 18 South St, Concord, NH?

18 South St, Concord, NH has 4 bedrooms, 1.5 bathrooms, 1,437 square feet of living space and a 0.08-acre lot.

When was 18 South St, Concord, NH built?

18 South St, Concord, NH was built in 1840, making it 186 years old. It is a cape cod home. The building has 2 stories.

What schools serve 18 South St, Concord, NH?

18 South St, Concord, NH is assigned to Concord High School (high), rated C-; Rundlett Middle School (middle), rated B-; Abbot-Downing School (elementary), rated C+. All sit in Concord School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 South St, Concord, NH compare to other homes in Concord 03301?

Among the 8,695 homes in Concord 03301, it is worth more than 60% of them ($456,708 against a typical $423,870), its price per square foot is higher than 77% of them ($318 against a typical $270), it is bigger than 43% of them (1,437 ft² against a typical 1,584 ft²), its lot is bigger than 11% of them (3,485 ft² against a typical 0.34 ac) and it is newer than 2% of them (1840 against a typical 1964). Measured against all of Merrimack County, it is worth more than 50% 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 18 South St, Concord, NH?

The 2025 property tax bill for 18 South St, Concord, NH was $8,847. The county assessed it at $303,900.

Closest homes

More homes in Concord 03301

Assigned schools

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