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Single Family ResidenceResidential
$518,371$390 / 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 Aug 30, 2026

170 OLD RIVER RD

ARNOLD, MD 21012
1
Baths
1,328 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.
0.29 ac
Lot SizeThe size of the land the home sits on, from county records.
1935
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$518K
$495K low$542K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,011 (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.$392,967 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$371,933
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$414,000

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.26
100
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.
9
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.177 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.1 percent flood zone

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.Conventional
CountyANNE ARUNDEL
Lot (acres)The size of the land the home sits on, from county records.0.29
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.Composition Shingle
HeatingThe type of heating system in the home.Space
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Shed · 576 ft²Porch · 72 ft²

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

E
Arnold Elementary SchoolA+
Elementary · Grades KG–5 · 0.9 mi
M
Severn River Middle SchoolA
Middle · Grades 6–8 · 2.5 mi
H
Broadneck High SchoolA-
High · Grades 9–12 · 3.2 mi

District: Anne Arundel County Public Schools

Neighborhood · ZIP 21012These 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.56
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.40

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.8%
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.23,137
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,859 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$142,581
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$165,159
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

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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

170 Old River Rd 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 less than 65% of homes in Arnold 21012
  • Costs more per square foot than 89% of homes in Anne Arundel County
  • Smaller than 85% of homes in Arnold 21012
  • Has a bigger lot than 68% of homes in Anne Arundel County
  • Older than 97% of homes in Arnold 21012

What homes are worth in Arnold 21012

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

This home
$286K$2M

This home is worth more than 35% of homes in Arnold 21012.

How it measures up in Arnold 21012

The dot is this home. The mark in the middle is the typical home in Arnold 21012.

Estimated value$518,371
CheaperTypical $603,150Pricier

Pricier than 35% of homes nearby

Price per ft²$390
CheaperTypical $295Pricier

Pricier than 87% of homes nearby

Living area1,328 ft²
SmallerTypical 1,994 ft²Bigger

Bigger than 15% of homes nearby

Lot size0.29 ac
SmallerTypical 0.26 acBigger

Bigger than 58% of homes nearby

Year built1935
OlderTypical 1981Newer

Newer than 3% of homes nearby

How 170 Old River Rd ranks against every home in each area.
MeasureThis homeArnold 21012Anne Arundel County
Estimated valuepricier than$518,37135% of homes53% of homes
Price per ft²pricier than$39087% of homes89% of homes
Living areabigger than1,328 ft²15% of homes20% of homes
Lot sizebigger than0.29 ac58% of homes68% of homes
Year builtnewer than19353% of homes4% of homes

About 170 Old River Rd

How much is 170 Old River Rd, Arnold, MD worth?

The TopHap Estimate for 170 Old River Rd, Arnold, MD is $518,371 as of Aug 30, 2026. The likely range is $495,075 to $541,667. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 170 Old River Rd, Arnold, MD last sell?

170 Old River Rd, Arnold, MD last sold on May 2, 2003, according to the county's recorded deed.

How big is 170 Old River Rd, Arnold, MD?

170 Old River Rd, Arnold, MD has 1 bathrooms, 1,328 square feet of living space and a 0.29-acre lot.

When was 170 Old River Rd, Arnold, MD built?

170 Old River Rd, Arnold, MD was built in 1935, making it 91 years old. It is a conventional home. The building has 1 story.

What schools serve 170 Old River Rd, Arnold, MD?

170 Old River Rd, Arnold, MD is assigned to Arnold Elementary School (elementary), rated A+; Severn River Middle School (middle), rated A; Broadneck High School (high), rated A-. All sit in Anne Arundel County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 170 Old River Rd, Arnold, MD compare to other homes in Arnold 21012?

Among the 8,545 homes in Arnold 21012, it is worth more than 35% of them ($518,371 against a typical $603,150), its price per square foot is higher than 87% of them ($390 against a typical $295), it is bigger than 15% of them (1,328 ft² against a typical 1,994 ft²), its lot is bigger than 58% of them (0.29 ac against a typical 0.26 ac) and it is newer than 3% of them (1935 against a typical 1981). Measured against all of Anne Arundel County, it is worth more than 53% 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 170 Old River Rd, Arnold, MD?

The 2025 property tax bill for 170 Old River Rd, Arnold, MD was $5,011. The county assessed it at $392,967.

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