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CondominiumResidential
$445,669$338 / 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 Jul 14, 2026
Last sold for $402,000 on Sep 19, 2022

911 NELSON ST

ROCKVILLE, MD 20850
1
Baths
1,320 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.
3,615 ft²
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.

Valuation

$446K
$420K low$471K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$402,000 · Sep 19, 2022
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.$445,669
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$356,535

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,237 (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.$373,333 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$366,667
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$380,000

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.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
13
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
75
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
77
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
34
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyMONTGOMERY
Lot (acres)The size of the land the home sits on, from county records.0.08
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Beall Elementary SchoolB
Elementary · Grades PK–5 · 0.7 mi
M
Julius West Middle SchoolA
Middle · Grades 6–8 · 1.3 mi
H
Richard Montgomery High SchoolA-
High · Grades 9–12 · 1.7 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20850These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.51,693
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,703 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,425
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$154,183
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.43 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

Ownership

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

911 Nelson 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.

  • Worth less than 84% of homes in Rockville
  • Smaller than 78% of homes in Rockville 20850
  • Has a smaller lot than 66% of homes in Rockville
  • Older than 78% of homes in Rockville 20850

What homes are worth in Rockville 20850

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

This home
$177K$1.6M

This home is worth more than 17% of homes in Rockville 20850.

How it measures up in Rockville 20850

The dot is this home. The mark in the middle is the typical home in Rockville 20850.

Estimated value$445,669
CheaperTypical $747,183Pricier

Pricier than 17% of homes nearby

Price per ft²$338
CheaperTypical $339Pricier

Pricier than 49% of homes nearby

Living area1,320 ft²
SmallerTypical 2,032 ft²Bigger

Bigger than 22% of homes nearby

Lot size3,615 ft²
SmallerTypical 0.1 acBigger

Bigger than 46% of homes nearby

Year built1966
OlderTypical 1989Newer

Newer than 22% of homes nearby

How 911 Nelson St ranks against every home in each area.
MeasureThis homeRockvilleRockville 20850Montgomery County
Estimated valuepricier than$445,66916% of homes17% of homes24% of homes
Price per ft²pricier than$33843% of homes49% of homes63% of homes
Living areabigger than1,320 ft²25% of homes22% of homes22% of homes
Lot sizebigger than3,615 ft²34% of homes46% of homes35% of homes
Year builtnewer than196640% of homes22% of homes32% of homes

About 911 Nelson St

How much is 911 Nelson St, Rockville, MD worth?

The TopHap Estimate for 911 Nelson St, Rockville, MD is $445,669 as of Jul 14, 2026. The likely range is $419,884 to $471,454. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 911 Nelson St, Rockville, MD last sell?

911 Nelson St, Rockville, MD last sold on Sep 19, 2022 for $402,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 911 Nelson St, Rockville, MD?

911 Nelson St, Rockville, MD has 1 bathrooms, 1,320 square feet of living space and a 0.08-acre lot.

When was 911 Nelson St, Rockville, MD built?

911 Nelson St, Rockville, MD was built in 1966, making it 60 years old. It is a condo/apartment home.

What schools serve 911 Nelson St, Rockville, MD?

911 Nelson St, Rockville, MD is assigned to Beall Elementary School (elementary), rated B; Julius West Middle School (middle), rated A; Richard Montgomery High School (high), rated A-. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 911 Nelson St, Rockville, MD compare to other homes in Rockville 20850?

Among the 13,722 homes in Rockville 20850, it is worth more than 17% of them ($445,669 against a typical $747,183), its price per square foot is higher than 49% of them ($338 against a typical $339), it is bigger than 22% of them (1,320 ft² against a typical 2,032 ft²), its lot is bigger than 46% of them (3,615 ft² against a typical 0.1 ac) and it is newer than 22% of them (1966 against a typical 1989). Measured against all of Montgomery County, it is worth more than 24% 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 911 Nelson St, Rockville, MD?

The 2025 property tax bill for 911 Nelson St, Rockville, MD was $5,237. The county assessed it at $373,333.

More homes on Nelson St

Closest homes

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Assigned schools

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