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CondominiumResidential

1740 18th St

WASHINGTON, DC 20009
210 ft²
Lot SizeThe size of the land the home sits on, from county records.
1947
Year BuiltThe year the home was originally built, according to county records.
Built 19473 floors20 units453–1,096 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.
$538K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$761
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+8.8%vs the Washington ZIP median sale $/ft² ($700)

Sales Performance

$369K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
1
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
5.0%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+1.5%per yeartypical hold 9.1 yrsfrom 25 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20062008201220152017202020232026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20062008201220152017202020232026

46 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.
$298K$467K$636K$806K453 ft²582 ft²710 ft²839 ft²967 ft²1,096 ft²
Studio1 bd2 bd
Studio
2 units
1 bed
7 units
2 bed
11 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.
1 bd · 1 ba · 506 ft²
2 units
1 bd · 1 ba · 557 ft²
2 units
2 bd · 2 ba · 738 ft²
2 units
2 bd · 2 ba · 808 ft²
2 units
2 bd · 3 ba · 1,030 ft²
2 units
One-off layouts
10 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.

$298K–$316K
2 units
$364K–$423K
5 units
$450K–$473K
2 units
$538K–$539K
2 units
$566K–$607K
3 units
$627K–$638K
2 units
$695K–$695K
1 unit
$783K–$806K
3 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
$751/ft²
Floor 2
$770/ft²
Floor 3
$762/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 ·01
$773/ft²
Line ·02
$771/ft²
Line ·04
$752/ft²
Line ·03
$741/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.74%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.10%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.6.3 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.43%
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.57%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$495,625
Median tax billThe middle annual property tax bill among the building's units.$4,146
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 203May 15, 2026$369,000Unit 202Jul 18, 2024$421,000Unit T5Jul 15, 2024$509,000Unit 302Sep 19, 2023$450,000Unit 304Sep 19, 2022$619,000Unit 204Aug 23, 2022$605,000Unit 101Jul 12, 2022$735,000Unit T4Jun 1, 2021$364,000Unit 201May 4, 2021$740,000Unit 102Aug 20, 2020$469,500

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

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyDistrict Of Columbia
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2006
Lot (acres)The size of the land the home sits on, from county records.0.01
HeatingThe type of heating system in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.No Garage
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
Ross Elementary SchoolA+
Elementary · Grades EE–5 · 0.1 mi
M
School Without Walls @ Francis-Stevens Education CampusA-
Middle · Grades EE–8 · 0.7 mi
H
Cardozo Education CampusD-
High · Grades 7–12 · 0.9 mi

District: District of Columbia Public Schools

Neighborhood · ZIP 20009These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.33

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.92%
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.8.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.2.0%
PopulationHow many people live in this area.54,451
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.42,372 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$130,098
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$168,293
Average tempThe average temperature here across a full year.56°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.56%

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.

1740 18th St Nw Apt T1
1 ba · 453 ft²
$316K
1740 18th St Nw # T2
1 bd · 1 ba · 477 ft²
$298K
1740 18th St Nw Apt T3
1 ba · 456 ft²
$368K
1740 18th St Nw Apt T4
1 bd · 1 ba · 496 ft²
$385K
1740 18th St Nw Apt T5
2 bd · 2 ba · 806 ft²
$538K
1740 18th St Nw Apt T6
2 bd · 2 ba · 727 ft²
$539K
1740 18th St Nw # 101
2 bd · 2 ba · 898 ft²
$695K
1740 18th St Nw Apt 102
1 bd · 1 ba · 635 ft²
$473K
1740 18th St Nw Apt 103
2 bd · 2 ba · 812 ft²
$627K
1740 18th St Nw Apt 104
2 bd · 3 ba · 1,096 ft²
$783K
1740 18th St Nw Apt 201
2 bd · 3 ba · 1,030 ft²
$806K
1740 18th St Nw Apt 202
1 bd · 1 ba · 557 ft²
$423K
1740 18th St Nw # 203
1 bd · 1 ba · 506 ft²
$371K
1740 18th St Nw Apt 204
2 bd · 2 ba · 808 ft²
$638K
1740 18th St Nw Apt 205
2 bd · 2 ba · 738 ft²
$579K
1740 18th St Nw Apt 301
2 bd · 3 ba · 1,030 ft²
$786K
1740 18th St Nw Apt 302
1 bd · 1 ba · 557 ft²
$450K
1740 18th St Nw Apt 303
1 bd · 1 ba · 506 ft²
$364K
1740 18th St Nw Apt 304
2 bd · 2 ba · 808 ft²
$607K
1740 18th St Nw Apt 305
2 bd · 2 ba · 738 ft²
$566K

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

About 1740 18th St

How many units are in 1740 18th St, Washington, DC?

1740 18th St, Washington, DC has 20 residential units across 3 floors, built in 1947, according to county assessor records.

What is a unit at 1740 18th St, Washington, DC worth?

The median TopHap Estimate across the 20 units at 1740 18th St, Washington, DC is $538,118. That works out to $761 per square foot. Units run from 453 to 1,096 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 1740 18th St, Washington, DC expensive for Washington?

Units at 1740 18th St, Washington, DC carry a median of $761 per square foot, 9% above the Washington median of $700 per square foot.

How often do units sell at 1740 18th St, Washington, DC?

1 units at 1740 18th St, Washington, DC sold in the last 12 months, out of 46 recorded arms-length sales all time. That is a turnover rate of 5.0% of the building per year. The median sale over that period was $369K.

Have units at 1740 18th St, Washington, DC appreciated?

Across 25 repeat sales of the same unit, 1740 18th St, Washington, DC returned a median 1.5% 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 9.1 years.

What floor plans does 1740 18th St, Washington, DC have?

The most common plan at 1740 18th St, Washington, DC is a 1-bedroom of 506 square feet, repeated 2 times, with a median estimate of $367,092. TopHap identifies 5 recurring plans in the building.

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