Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$487,104$377 / 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

506 1ST ST

ROCKVILLE, MD 20851
1
Baths
1,293 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$487K
$468K low$506K high
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.$233,904
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$187,123
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.50%
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.$253,200
MID ATLANTIC FCU · recorded Jul 26, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,128 (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.$395,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$254,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$141,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$376,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$395,300

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
CountyMONTGOMERY
Lot (acres)The size of the land the home sits on, from county records.0.19
ConstructionThe main material the home's frame and walls are built from.Brick
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.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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.Patio · 360 ft²Porch · 129 ft²

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

H
Rockville High SchoolB-
High · Grades 9–12 · 1.0 mi
E
Meadow Hall Elementary SchoolC-
Elementary · Grades KG–5 · 1.1 mi
M
Earle B. Wood Middle SchoolB-
Middle · Grades 6–8 · 1.7 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20851These 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.82
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.34

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.13,201
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,514 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$115,758
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$138,170
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.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

506 1st 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 78% of homes in Rockville
  • Costs more per square foot than 76% of homes in Montgomery County
  • Smaller than 80% of homes in Montgomery County
  • Has a bigger lot than 75% of homes in Rockville 20851
  • Older than 84% of homes in Montgomery County

What homes are worth in Rockville 20851

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

This home
$375K$754K

This home is worth more than 29% of homes in Rockville 20851.

How it measures up in Rockville 20851

The dot is this home. The mark in the middle is the typical home in Rockville 20851.

Estimated value$487,104
CheaperTypical $532,355Pricier

Pricier than 29% of homes nearby

Price per ft²$377
CheaperTypical $359Pricier

Pricier than 59% of homes nearby

Living area1,293 ft²
SmallerTypical 1,479 ft²Bigger

Bigger than 36% of homes nearby

Lot size0.19 ac
SmallerTypical 0.16 acBigger

Bigger than 75% of homes nearby

Year built1954
OlderTypical 1953Newer

Newer than 66% of homes nearby

How 506 1st St ranks against every home in each area.
MeasureThis homeRockvilleRockville 20851Montgomery County
Estimated valuepricier than$487,10422% of homes29% of homes30% of homes
Price per ft²pricier than$37765% of homes59% of homes76% of homes
Living areabigger than1,293 ft²23% of homes36% of homes20% of homes
Lot sizebigger than0.19 ac64% of homes75% of homes58% of homes
Year builtnewer than195420% of homes66% of homes16% of homes

About 506 1st St

How much is 506 1st St, Rockville, MD worth?

The TopHap Estimate for 506 1st St, Rockville, MD is $487,104 as of Jul 14, 2026. The likely range is $468,251 to $505,957. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 506 1st St, Rockville, MD last sell?

506 1st St, Rockville, MD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 506 1st St, Rockville, MD?

506 1st St, Rockville, MD has 1 bathrooms, 1,293 square feet of living space and a 0.19-acre lot.

When was 506 1st St, Rockville, MD built?

506 1st St, Rockville, MD was built in 1954, making it 72 years old. It is a conventional home. The building has 1 story.

What schools serve 506 1st St, Rockville, MD?

506 1st St, Rockville, MD is assigned to Rockville High School (high), rated B-; Meadow Hall Elementary School (elementary), rated C-; Earle B. Wood Middle School (middle), rated B-. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 506 1st St, Rockville, MD compare to other homes in Rockville 20851?

Among the 3,659 homes in Rockville 20851, it is worth more than 29% of them ($487,104 against a typical $532,355), its price per square foot is higher than 59% of them ($377 against a typical $359), it is bigger than 36% of them (1,293 ft² against a typical 1,479 ft²), its lot is bigger than 75% of them (0.19 ac against a typical 0.16 ac) and it is newer than 66% of them (1954 against a typical 1953). Measured against all of Montgomery County, it is worth more than 30% 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 506 1st St, Rockville, MD?

The 2025 property tax bill for 506 1st St, Rockville, MD was $5,128. The county assessed it at $395,300.

Closest homes

More homes in Rockville 20851

Assigned schools

Explore the area

See this home in context

Open 506 1st 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