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CondominiumResidential

416 PETRONIA ST

KEY WEST, FL 33040
Built 19286 units384–633 ft²
$2.9M
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.
$496K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$1099
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+35.2%vs the Key West ZIP median sale $/ft² ($813)

Sales Performance

—
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.
0
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
0.0%
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.
+5.6%per yeartypical hold 6.7 yrsfrom 10 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
20032006201220152016202120222025
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
20032006201220152016202120222025

18 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.

1 bed
5 units
2 bed
1 unit

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.

$356K–$370K
2 units
$478K–$478K
1 unit
$515K–$515K
1 unit
$547K–$547K
1 unit
$658K–$658K
1 unit

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.50%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.0%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.8.7 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.67%
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.26%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$490,825
Median tax billThe middle annual property tax bill among the building's units.$3,660
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 4Jan 16, 2025$467,500Unit 2Aug 2, 2023$560,000Unit 2Mar 15, 2022$500,000Unit 2Aug 4, 2021$355,000Unit 4Apr 21, 2021$329,000Unit 1Nov 7, 2017$323,000Unit 2May 12, 2017$244,000Unit 5May 9, 2017$299,000Unit 6Oct 27, 2016$320,000Unit 5Jun 15, 2015$180,000

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
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyMONROE
PoolWhether the property has a pool, and what kind, such as in-ground.No

Neighborhood · ZIP 33040These 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.102
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.1

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.82%
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.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.31,854
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.222 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$86,370
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$116,488
Average tempThe average temperature here across a full year.78°F
Annual precipHow much rain and melted snow falls here in a typical year.41 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.76%

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.

416 Petronia St
416 Petronia St Apt 1
1 bd · 1 ba · 420 ft²
$515K
416 Petronia St Apt 2
1 bd · 1 ba · 389 ft²
$547K
416 Petronia St # 3
1 bd · 1 ba · 393 ft²
$370K
416 Petronia St Apt 4
1 bd · 1 ba · 412 ft²
$478K
416 Petronia St # 5
1 bd · 1 ba · 384 ft²
$356K
416 Petronia St Apt 6
2 bd · 1 ba · 633 ft²
$658K

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

About 416 Petronia St

How many units are in 416 Petronia St, Key West, FL?

416 Petronia St, Key West, FL has 6 residential units across built in 1928, according to county assessor records.

What is a unit at 416 Petronia St, Key West, FL worth?

The median TopHap Estimate across the 6 units at 416 Petronia St, Key West, FL is $496,473. That works out to $1099 per square foot. Units run from 384 to 633 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 416 Petronia St, Key West, FL expensive for Key West?

Units at 416 Petronia St, Key West, FL carry a median of $1099 per square foot, 35% above the Key West median of $813 per square foot.

How often do units sell at 416 Petronia St, Key West, FL?

0 units at 416 Petronia St, Key West, FL sold in the last 12 months, out of 18 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.

Have units at 416 Petronia St, Key West, FL appreciated?

Across 10 repeat sales of the same unit, 416 Petronia St, Key West, FL returned a median 5.6% 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 6.7 years.

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