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Residential (General/Single)Residential
$479,085$345 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $1,500 on Oct 19, 1979

173 OLD RIVER RD

ARNOLD, MD 21012
1
Baths
1,390 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1966
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$479K
$450K low$508K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,500 · Oct 19, 1979

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$155 (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.$14,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$14,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$14,200

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.Residential (General/Single)
CountyANNE ARUNDEL
Lot (acres)The size of the land the home sits on, from county records.0.12
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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
Arnold Elementary SchoolA+
Elementary · Grades KG–5 · 0.9 mi
M
Severn River Middle SchoolA
Middle · Grades 6–8 · 2.6 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

173 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 73% of homes in Arnold 21012
  • Costs more per square foot than 81% of homes in Anne Arundel County
  • Smaller than 82% of homes in Arnold 21012
  • Has a smaller lot than 73% of homes in Arnold 21012
  • Older than 82% 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 27% 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$479,085
CheaperTypical $619,870Pricier

Pricier than 27% of homes nearby

Price per ft²$345
CheaperTypical $301Pricier

Pricier than 73% of homes nearby

Living area1,390 ft²
SmallerTypical 2,000 ft²Bigger

Bigger than 18% of homes nearby

Lot size0.11 ac
SmallerTypical 0.26 acBigger

Bigger than 27% of homes nearby

Year built1966
OlderTypical 1981Newer

Newer than 18% of homes nearby

How 173 Old River Rd ranks against every home in each area.
MeasureThis homeArnold 21012Anne Arundel County
Estimated valuepricier than$479,08527% of homes45% of homes
Price per ft²pricier than$34573% of homes81% of homes
Living areabigger than1,390 ft²18% of homes23% of homes
Lot sizebigger than0.11 ac27% of homes29% of homes
Year builtnewer than196618% of homes28% of homes

About 173 Old River Rd

How much is 173 Old River Rd, Arnold, MD worth?

The TopHap Estimate for 173 Old River Rd, Arnold, MD is $479,085 as of Sep 24, 2026. The likely range is $450,086 to $508,084. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 173 Old River Rd, Arnold, MD last sell?

173 Old River Rd, Arnold, MD last sold on Oct 19, 1979 for $1,500, according to the county's recorded deed.

How big is 173 Old River Rd, Arnold, MD?

173 Old River Rd, Arnold, MD has 1 bathrooms, 1,390 square feet of living space and a 0.12-acre lot.

When was 173 Old River Rd, Arnold, MD built?

173 Old River Rd, Arnold, MD was built in 1966, making it 60 years old. The building has 2 stories.

What schools serve 173 Old River Rd, Arnold, MD?

173 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 173 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 27% of them ($479,085 against a typical $619,870), its price per square foot is higher than 73% of them ($345 against a typical $301), it is bigger than 18% of them (1,390 ft² against a typical 2,000 ft²), its lot is bigger than 27% of them (0.11 ac against a typical 0.26 ac) and it is newer than 18% of them (1966 against a typical 1981). Measured against all of Anne Arundel County, it is worth more than 45% 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 173 Old River Rd, Arnold, MD?

The 2025 property tax bill for 173 Old River Rd, Arnold, MD was $155. The county assessed it at $14,200.

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