Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$336,313$437 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 86How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

427 RIVERSIDE ST

PORTLAND, ME 04103
3
Beds
1
Baths
770 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.58 ac
Lot SizeThe size of the land the home sits on, from county records.
1941
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$336K
$290K low$382K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$236,313
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$189,050
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.31%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$100,000
NORWAY SAVINGS BANK · R · recorded Jun 26, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,973 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$415,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$149,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$265,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$285,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Cape Cod
CountyCUMBERLAND
Lot (acres)The size of the land the home sits on, from county records.0.58
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.

E
Gerald E Talbot Community SchoolD
Elementary · Grades PK–5 · 0.9 mi
H
Casco Bay High SchoolC+
High · Grades 9–12 · 1.7 mi
M
Lincoln Middle SchoolB-
Middle · Grades 6–8 · 1.8 mi

District: Portland

Neighborhood · ZIP 04103These 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.83
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.86

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.8%
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.31,898
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,948 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$84,945
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$108,429
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

How this home compares

427 Riverside St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 97% of homes in Riverton
  • Costs more per square foot than 78% of homes in Riverton
  • Smaller than 98% of homes in Portland 04103
  • Has a bigger lot than 97% of homes in Riverton
  • Older than 77% of homes in Cumberland County

What homes are worth in Portland 04103

Each bar is how many homes fall in that price range. The marker is this home.

This home
$329K$1.1M

This home is worth more than 3% of homes in Portland 04103.

How it measures up in Portland 04103

The dot is this home. The mark in the middle is the typical home in Portland 04103.

Estimated value$336,313
CheaperTypical $534,341Pricier

Pricier than 3% of homes nearby

Price per ft²$437
CheaperTypical $388Pricier

Pricier than 70% of homes nearby

Living area770 ft²
SmallerTypical 1,504 ft²Bigger

Bigger than 2% of homes nearby

Lot size0.58 ac
SmallerTypical 0.19 acBigger

Bigger than 96% of homes nearby

Year built1941
OlderTypical 1954Newer

Newer than 40% of homes nearby

How 427 Riverside St ranks against every home in each area.
MeasureThis homeRivertonPortland 04103Cumberland County
Estimated valuepricier than$336,3133% of homes3% of homes8% of homes
Price per ft²pricier than$43778% of homes70% of homes66% of homes
Living areabigger than770 ft²3% of homes2% of homes6% of homes
Lot sizebigger than0.58 ac97% of homes96% of homes51% of homes
Year builtnewer than194124% of homes40% of homes23% of homes

About 427 Riverside St

How much is 427 Riverside St, Portland, ME worth?

The TopHap Estimate for 427 Riverside St, Portland, ME is $336,313 as of Jul 14, 2026. The likely range is $290,371 to $382,255. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 427 Riverside St, Portland, ME last sell?

427 Riverside St, Portland, ME last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 427 Riverside St, Portland, ME?

427 Riverside St, Portland, ME has 3 bedrooms, 1 bathrooms, 770 square feet of living space and a 0.58-acre lot.

When was 427 Riverside St, Portland, ME built?

427 Riverside St, Portland, ME was built in 1941, making it 85 years old. It is a cape cod home. The building has 1 story.

What schools serve 427 Riverside St, Portland, ME?

427 Riverside St, Portland, ME is assigned to Gerald E Talbot Community School (elementary), rated D; Casco Bay High School (high), rated C+; Lincoln Middle School (middle), rated B-. All sit in Portland. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 427 Riverside St, Portland, ME compare to other homes in Portland 04103?

Among the 9,383 homes in Portland 04103, it is worth more than 3% of them ($336,313 against a typical $534,341), its price per square foot is higher than 70% of them ($437 against a typical $388), it is bigger than 2% of them (770 ft² against a typical 1,504 ft²), its lot is bigger than 96% of them (0.58 ac against a typical 0.19 ac) and it is newer than 40% of them (1941 against a typical 1954). Measured against all of Cumberland County, it is worth more than 8% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 427 Riverside St, Portland, ME?

The 2025 property tax bill for 427 Riverside St, Portland, ME was $4,973. The county assessed it at $415,100.

More homes on Riverside St

Closest homes

More homes in Portland 04103

Assigned schools

Explore the area

See this home in context

Open 427 Riverside 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