Skip to content
Skip to content
TopHapOpen in map
CondominiumResidential

150 Middle St

PORTLAND, ME 04101
1845
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 184535 units452–2,122 ft²
$23M
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.
$683K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$622
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

+30.1%vs the Portland ZIP median sale $/ft² ($478)

Sales Performance

$529K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
+7.9%
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.
2.9%
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.
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
202220242025

7 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.
$457K$620K$782K$945K452 ft²786 ft²1,120 ft²1,454 ft²1,788 ft²2,122 ft²
Studio1 bd2 bd
Studio
1 unit
1 bed
21 units
2 bed
13 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 · 820 ft²
3 units
1 bd · 1 ba · 879 ft²
3 units
1 bd · 1 ba · 952 ft²
3 units
1 bd · 1 ba · 977 ft²
3 units
1 bd · 1 ba · 1,031 ft²
3 units
2 bd · 1 ba · 1,050 ft²
3 units
1 bd · 1 ba · 941 ft²
2 units
1 bd · 1 ba · 1,001 ft²
2 units
2 bd · 1 ba · 1,107 ft²
2 units
2 bd · 1 ba · 1,113 ft²
2 units
2 bd · 1 ba · 1,220 ft²
2 units
One-off layouts
7 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.

$457K–$515K
5 units
$522K–$579K
4 units
$590K–$618K
5 units
$665K–$698K
8 units
$702K–$731K
12 units
$945K–$945K
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.40%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.23%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.11.0 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.35%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$628,960
Median tax billThe middle annual property tax bill among the building's units.$5,095
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 4BNov 3, 2025$528,500Unit 2GJul 22, 2025$490,000Unit 2DAug 14, 2024$470,000Unit 4BMay 10, 2024$510,000Unit 3EMay 1, 2024$775,000Unit 2DDec 2, 2022$538,000Unit 3KNov 4, 2022$618,000

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
CountyCUMBERLAND
HeatingThe type of heating system in the home.Hot Water
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

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

H
Portland High SchoolC-
High · Grades 9–12 · 0.3 mi
E
Howard C Reiche Community SchoolD+
Elementary · Grades PK–5 · 0.9 mi
M
King Middle SchoolD-
Middle · Grades 6–8 · 1.1 mi

District: Portland

Neighborhood · ZIP 04101These 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.162
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 100.88

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.90%
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.15%
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.19,646
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,816 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$64,615
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$91,739
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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.

150 Middle St # 2a
2 bd · 1 ba · 1,220 ft²
$731K
150 Middle St # 2b
1 bd · 1 ba · 952 ft²
$590K
150 Middle St # 2c
1 bd · 1 ba · 1,031 ft²
$713K
150 Middle St # 2d
1 bd · 1 ba · 977 ft²
$457K
150 Middle St # 2e
2 bd · 1 ba · 1,113 ft²
$686K
150 Middle St # 2f
2 bd · 1 ba · 1,107 ft²
$721K
150 Middle St # 2g
1 bd · 1 ba · 879 ft²
$475K
150 Middle St # 2h
1 bd · 1 ba · 1,001 ft²
$702K
150 Middle St # 2i
2 bd · 1 ba · 941 ft²
$579K
150 Middle St # 2j
1 bd · 1 ba · 820 ft²
$683K
150 Middle St # 2k
2 bd · 1 ba · 1,050 ft²
$723K
150 Middle St # 3a
1 bd · 1 ba · 1,220 ft²
$665K
150 Middle St # 3b
1 bd · 1 ba · 952 ft²
$522K
150 Middle St # 3c
1 bd · 1 ba · 1,031 ft²
$713K
150 Middle St # 3d
1 bd · 1 ba · 977 ft²
$698K
150 Middle St # 3e
1 bd · 1 ba · 1,113 ft²
$671K
150 Middle St # 3f
2 bd · 1 ba · 1,107 ft²
$721K
150 Middle St # 3g
1 bd · 1 ba · 879 ft²
$677K
150 Middle St # 3h
1 bd · 1 ba · 1,001 ft²
$702K
150 Middle St # 3i
1 bd · 1 ba · 941 ft²
$698K
150 Middle St # 3j
1 bd · 1 ba · 820 ft²
$683K
150 Middle St # 3k
2 bd · 1 ba · 1,050 ft²
$618K
150 Middle St # 4a
2 bd · 1 ba · 1,220 ft²
$731K
150 Middle St # 4b
1 bd · 1 ba · 952 ft²
$515K
150 Middle St # 4c
1 bd · 1 ba · 1,031 ft²
$713K
150 Middle St # 4d
1 bd · 1 ba · 977 ft²
$578K
150 Middle St # 4e
2 bd · 1 ba · 1,113 ft²
$718K
150 Middle St # 4f
2 bd · 2 ba · 1,107 ft²
$599K
150 Middle St # 4g
1 bd · 1 ba · 879 ft²
$596K
150 Middle St # 4h
2 bd · 1 ba · 1,001 ft²
$598K
150 Middle St # 4i
1 bd · 1 ba · 941 ft²
$543K
150 Middle St # 4j
1 bd · 1 ba · 820 ft²
$510K
150 Middle St # 4k
2 bd · 1 ba · 1,050 ft²
$723K
150 Middle St # 5b
2 bd · 2.5 ba · 2,122 ft²
$945K
150 Middle St # 23
452 ft²
$491K

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

About 150 Middle St

How many units are in 150 Middle St, Portland, ME?

150 Middle St, Portland, ME has 35 residential units across built in 1845, according to county assessor records.

What is a unit at 150 Middle St, Portland, ME worth?

The median TopHap Estimate across the 35 units at 150 Middle St, Portland, ME is $682,604. That works out to $622 per square foot. Units run from 452 to 2,122 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 150 Middle St, Portland, ME expensive for Portland?

Units at 150 Middle St, Portland, ME carry a median of $622 per square foot, 30% above the Portland median of $478 per square foot.

How often do units sell at 150 Middle St, Portland, ME?

1 units at 150 Middle St, Portland, ME sold in the last 12 months, out of 7 recorded arms-length sales all time. That is a turnover rate of 2.9% of the building per year. The median sale over that period was $529K.

What floor plans does 150 Middle St, Portland, ME have?

The most common plan at 150 Middle St, Portland, ME is a 1-bedroom of 820 square feet, repeated 3 times, with a median estimate of $682,604. TopHap identifies 11 recurring plans in the building.

More homes on Middle St

Closest homes

More homes in Portland 04101

Assigned schools

Explore the area

See this home in context

Open 150 Middle 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