Skip to content
Skip to content
TopHapOpen in map
CondominiumResidential

3 Arch Pl

GAITHERSBURG, MD 20878
1 ac
Lot SizeThe size of the land the home sits on, from county records.
2005
Year BuiltThe year the home was originally built, according to county records.
Built 20054 floors32 units852–2,080 ft²
$11M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$305K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$346
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+14.1%vs the Gaithersburg ZIP median sale $/ft² ($303)

Sales Performance

$330K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
+0.5%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
3
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
9.4%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+1.0%per yeartypical hold 5.5 yrsfrom 26 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20062008201120152018202020242026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20062008201120152018202020242026

55 arms-length sales on record for this building.

Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.

Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
$288K$402K$516K$631K852 ft²1,098 ft²1,343 ft²1,589 ft²1,834 ft²2,080 ft²
Studio
Studio
32 units
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
Studio · 0 ba · 870 ft²
6 units
Studio · 0 ba · 1,003 ft²
5 units
Studio · 0 ba · 866 ft²
4 units
Studio · 0 ba · 867 ft²
4 units
Studio · 0 ba · 852 ft²
3 units
Studio · 0 ba · 986 ft²
2 units
Studio · 0 ba · 1,530 ft²
2 units
Studio · 0 ba · 2,080 ft²
2 units
One-off layouts
4 units

Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.

$288K–$330K
21 units
$335K–$363K
7 units
$471K–$480K
2 units
$617K–$631K
2 units

Value by Floor & LineAverage estimated price per square foot by floor range, using unit numbers to infer floors. Higher floors usually price higher — the gap shows how much the view is worth here.

Floor 1
$344/ft²
Floor 2
$347/ft²
Floor 3
$342/ft²
Floor 4
$341/ft²
Unit lines by $/ft²Condo units stacked vertically share a unit line — the last digits of the unit number (like 05 in 1205, 1305, 1405). Lines share a layout and exposure, so comparing estimated $/ft² by line shows which position in the building commands a premium.
Line ·25
$356/ft²
Line ·30
$355/ft²
Line ·27
$352/ft²
Line ·26
$349/ft²
Line ·32
$348/ft²
Line ·28
$341/ft²
Line ·24
$320/ft²

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.53%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.9%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.7.9 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.11%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.20%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$325,654
Median tax billThe middle annual property tax bill among the building's units.$3,589
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0

Recent SalesThe latest recorded arms-length sales in the building, newest first.

Unit 226Mar 19, 2026$335,000Unit 124Dec 2, 2025$330,000Unit 325Oct 30, 2025$325,000Unit 124Jun 5, 2025$290,000Unit 132Jun 2, 2025$330,000Unit 130May 2, 2025$334,900Unit 125Dec 3, 2024$327,000Unit 227Nov 15, 2023$330,000Unit 125Oct 15, 2021$280,000Unit 427Jun 23, 2021$309,900

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
4
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
76
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
81
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.0.00
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
Rachel Carson Elementary SchoolB+
Elementary · Grades PK–5 · 0.8 mi
M
Lakelands Park Middle SchoolB-
Middle · Grades 6–8 · 0.8 mi
H
Quince Orchard High SchoolA
High · Grades 9–12 · 1.1 mi

District: Montgomery County Public Schools

Neighborhood · ZIP 20878These 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.62
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 100.42

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.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.9%
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.66,167
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,976 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$145,457
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$176,656
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%

All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.

3 Arch Pl # 122
1,530 ft²
$480K
3 Arch Pl # 124
870 ft²
$290K
3 Arch Pl # 125
859 ft²
$302K
3 Arch Pl # 126
870 ft²
$298K
3 Arch Pl # 127
854 ft²
$288K
3 Arch Pl # 128
870 ft²
$298K
3 Arch Pl # 130
870 ft²
$335K
3 Arch Pl # 132
874 ft²
$304K
3 Arch Pl # 222
1,530 ft²
$471K
3 Arch Pl # 224
866 ft²
$302K
3 Arch Pl # 225
852 ft²
$306K
3 Arch Pl # 226
866 ft²
$302K
3 Arch Pl # 227
852 ft²
$305K
3 Arch Pl # 228
866 ft²
$304K
3 Arch Pl # 230
866 ft²
$304K
3 Arch Pl # 232
870 ft²
$306K
3 Arch Pl # 324
2,080 ft²
$617K
3 Arch Pl # 325
856 ft²
$306K
3 Arch Pl # 326
867 ft²
$298K
3 Arch Pl # 327
852 ft²
$308K
3 Arch Pl # 328
867 ft²
$296K
3 Arch Pl # 330
867 ft²
$295K
3 Arch Pl # 332
867 ft²
$302K
3 Arch Pl # 334
870 ft²
$298K
3 Arch Pl # 424
2,080 ft²
$631K
3 Arch Pl # 425
986 ft²
$350K
3 Arch Pl # 426
1,003 ft²
$363K
3 Arch Pl # 427
986 ft²
$346K
3 Arch Pl # 428
1,003 ft²
$330K
3 Arch Pl # 430
1,003 ft²
$345K
3 Arch Pl # 432
1,003 ft²
$345K
3 Arch Pl # 434
1,003 ft²
$337K

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

About 3 Arch Pl

How many units are in 3 Arch Pl, Gaithersburg, MD?

3 Arch Pl, Gaithersburg, MD has 32 residential units across 4 floors, built in 2005, according to county assessor records.

What is a unit at 3 Arch Pl, Gaithersburg, MD worth?

The median TopHap Estimate across the 32 units at 3 Arch Pl, Gaithersburg, MD is $305,129. That works out to $346 per square foot. Units run from 852 to 2,080 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 3 Arch Pl, Gaithersburg, MD expensive for Gaithersburg?

Units at 3 Arch Pl, Gaithersburg, MD carry a median of $346 per square foot, 14% above the Gaithersburg median of $303 per square foot.

How often do units sell at 3 Arch Pl, Gaithersburg, MD?

3 units at 3 Arch Pl, Gaithersburg, MD sold in the last 12 months, out of 55 recorded arms-length sales all time. That is a turnover rate of 9.4% of the building per year. The median sale over that period was $330K.

Have units at 3 Arch Pl, Gaithersburg, MD appreciated?

Across 26 repeat sales of the same unit, 3 Arch Pl, Gaithersburg, MD returned a median 1.0% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 5.5 years.

What floor plans does 3 Arch Pl, Gaithersburg, MD have?

The most common plan at 3 Arch Pl, Gaithersburg, MD is a 0-bedroom of 870 square feet, repeated 6 times, with a median estimate of $297,906. TopHap identifies 8 recurring plans in the building.

More homes on Arch Pl

Closest homes

More homes in Gaithersburg 20878

Assigned schools

Explore the area

See this home in context

Open 3 Arch Pl 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