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CondominiumResidential

375 Allyn St

MYSTIC, CT 06355
2006
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
Built 200242 units2,240–2,562 ft²
$24M
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.
$556K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$242
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-37.9%vs the Mystic ZIP median sale $/ft² ($390)

Sales Performance

$587K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
+13.4%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
2
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
4.8%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+1.2%per yeartypical hold 6.4 yrsfrom 46 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20022005200920132016201920222025
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20022005200920132016201920222025

91 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.
$486K$543K$601K$659K2,240 ft²2,304 ft²2,369 ft²2,433 ft²2,498 ft²2,562 ft²
2 bd3 bd4+ bd
2 bed
1 unit
3 bed
40 units
4 bed
1 unit
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.
3 bd · 2.5 ba · 2,240 ft²
24 units
3 bd · 2.5 ba · 2,562 ft²
15 units
One-off layouts
3 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.

$486K–$503K
3 units
$523K–$527K
3 units
$530K–$550K
13 units
$553K–$569K
7 units
$578K–$593K
5 units
$600K–$613K
3 units
$620K–$637K
6 units
$652K–$659K
2 units

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.83%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.5%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.10.5 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.83%
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.21%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$538,481
Median tax billThe middle annual property tax bill among the building's units.$7,050
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 A4Dec 22, 2025$599,000Unit A4Sep 16, 2025$575,000Unit D13Nov 22, 2024$525,000Unit F36Nov 18, 2024$510,000Unit I39Aug 22, 2024$575,000Unit B11Sep 29, 2023$464,000Unit A4May 8, 2023$550,000Unit F36Jun 1, 2022$479,000Unit J27Mar 16, 2022$525,000Unit G31Mar 16, 2022$500,000

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
CountySOUTHEASTERN CONNECTICUT
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

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

E
Northeast Academy Arts Magnet SchoolB
Elementary · Grades PK–5 · 1.2 mi
M
Groton Middle SchoolC
Middle · Grades 6–8 · 2.2 mi
H
Robert E. Fitch High SchoolC
High · Grades 9–12 · 2.3 mi

District: Groton School District

Neighborhood · ZIP 06355These 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.64
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.55

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.2%
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.10,797
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.722 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$124,279
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,807
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.49 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.

375 Allyn St # A1
3 bd · 2.5 ba · 2,562 ft²
$578K
375 Allyn St # A2
3 bd · 2.5 ba · 2,240 ft²
$523K
375 Allyn St # A3
3 bd · 2.5 ba · 2,240 ft²
$486K
375 Allyn St # A4
3 bd · 2.5 ba · 2,562 ft²
$605K
375 Allyn St # C5
3 bd · 2.5 ba · 2,562 ft²
$659K
375 Allyn St # C6
3 bd · 2.5 ba · 2,240 ft²
$550K
375 Allyn St # C7
3 bd · 2.5 ba · 2,240 ft²
$542K
375 Allyn St # C8
3 bd · 2.5 ba · 2,240 ft²
$560K
375 Allyn St # B9
3 bd · 2.5 ba · 2,562 ft²
$569K
375 Allyn St # B10
3 bd · 2.5 ba · 2,240 ft²
$547K
375 Allyn St # B11
3 bd · 2.5 ba · 2,240 ft²
$530K
375 Allyn St # B12
3 bd · 2.5 ba · 2,240 ft²
$578K
375 Allyn St # D13
3 bd · 2.5 ba · 2,240 ft²
$542K
375 Allyn St # D14
3 bd · 3.5 ba · 2,240 ft²
$592K
375 Allyn St # D15
3 bd · 2.5 ba · 2,240 ft²
$535K
375 Allyn St # E16
3 bd · 2.5 ba · 2,562 ft²
$584K
375 Allyn St # E17
3 bd · 2.5 ba · 2,240 ft²
$526K
375 Allyn St # E18
3 bd · 2.5 ba · 2,240 ft²
$534K
375 Allyn St # E19
3 bd · 2.5 ba · 2,562 ft²
$593K
375 Allyn St # H20
3 bd · 2.5 ba · 2,562 ft²
$620K
375 Allyn St # H21
3 bd · 2.5 ba · 2,240 ft²
$553K
375 Allyn St # H22
3 bd · 2.5 ba · 2,240 ft²
$556K
375 Allyn St # H23
3 bd · 2.5 ba · 2,240 ft²
$549K
375 Allyn St # K24
3 bd · 2.5 ba · 2,562 ft²
$630K
375 Allyn St # K25
3 bd · 2.5 ba · 2,240 ft²
$556K
375 Allyn St # K26
3 bd · 2.5 ba · 2,562 ft²
$621K
375 Allyn St # J27
3 bd · 2.5 ba · 2,562 ft²
$622K
375 Allyn St # J28
3 bd · 2.5 ba · 2,240 ft²
$546K
375 Allyn St # J29
3 bd · 2.5 ba · 2,240 ft²
$544K
375 Allyn St # J30
3 bd · 2.5 ba · 2,562 ft²
$637K
375 Allyn St # G31
3 bd · 2.5 ba · 2,562 ft²
$613K
375 Allyn St # G32
3 bd · 2.5 ba · 2,240 ft²
$503K
375 Allyn St # G33
3 bd · 2.5 ba · 2,240 ft²
$498K
375 Allyn St # G34
2 bd · 2.5 ba · 2,562 ft²
$652K
375 Allyn St # F35
3 bd · 2.5 ba · 2,562 ft²
$560K
375 Allyn St # F36
3 bd · 2.5 ba · 2,240 ft²
$527K
375 Allyn St # F37
3 bd · 2.5 ba · 2,240 ft²
$543K
375 Allyn St # F38
4 bd · 2.5 ba · 2,562 ft²
$627K
375 Allyn St # I39
3 bd · 2.5 ba · 2,562 ft²
$600K
375 Allyn St # I40
3 bd · 2.5 ba · 2,240 ft²
$542K
375 Allyn St # I41
3 bd · 2.5 ba · 2,240 ft²
$542K
375 Allyn St # I42
3 bd · 2.5 ba · 2,562 ft²
$565K

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

About 375 Allyn St

How many units are in 375 Allyn St, Mystic, CT?

375 Allyn St, Mystic, CT has 42 residential units across built in 2002, according to county assessor records.

What is a unit at 375 Allyn St, Mystic, CT worth?

The median TopHap Estimate across the 42 units at 375 Allyn St, Mystic, CT is $555,557. That works out to $242 per square foot. Units run from 2,240 to 2,562 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 375 Allyn St, Mystic, CT expensive for Mystic?

Units at 375 Allyn St, Mystic, CT carry a median of $242 per square foot, 38% below the Mystic median of $390 per square foot.

How often do units sell at 375 Allyn St, Mystic, CT?

2 units at 375 Allyn St, Mystic, CT sold in the last 12 months, out of 91 recorded arms-length sales all time. That is a turnover rate of 4.8% of the building per year. The median sale over that period was $587K.

Have units at 375 Allyn St, Mystic, CT appreciated?

Across 46 repeat sales of the same unit, 375 Allyn St, Mystic, CT returned a median 1.2% 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 6.4 years.

What floor plans does 375 Allyn St, Mystic, CT have?

The most common plan at 375 Allyn St, Mystic, CT is a 3-bedroom of 2,240 square feet, repeated 24 times, with a median estimate of $542,305. TopHap identifies 2 recurring plans in the building.

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