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Single Family ResidenceResidential
$1,505,781$306 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $550,000 on Dec 29, 1997

1375 PORTMARNOCK DR

ALPHARETTA, GA 30005
4
Beds
4.5
Baths
4,924 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.
0.59 ac
Lot SizeThe size of the land the home sits on, from county records.
1997
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.5M
$1.4M low$1.6M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$550,000 · Dec 29, 1997

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,386 (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.$615,160 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$178,840
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$436,320
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$478,040
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,537,900

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.45
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
4
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
85
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
95
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
41
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

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.Conventional
CountyFULTON
Lot (acres)The size of the land the home sits on, from county records.0.59
HeatingThe type of heating system in the home.Yes
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
ViewThe type of view from the property, or another feature of the site that affects value.Neighborhood / Spot
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 615 ft²Porch · 50 ft²

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

M
Webb Bridge Middle SchoolA+
Middle · Grades 6–8 · 1.2 mi
E
Creek View Elementary SchoolA+
Elementary · Grades KG–5 · 1.4 mi
H
Alpharetta High SchoolA
High · Grades 9–12 · 2.1 mi

District: Fulton County School District

Neighborhood · ZIP 30005These 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.34
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.63

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.42%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.41,608
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,593 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$158,070
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$189,684
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.54 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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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

1375 Portmarnock Dr 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 more than 97% of homes in Alpharetta 30005
  • Costs more per square foot than 83% of homes in Alpharetta 30005
  • Bigger than 97% of homes in Alpharetta 30005
  • Has a bigger lot than 90% of homes in Alpharetta 30005
  • Newer than 69% of homes in Windward

What homes are worth in Alpharetta 30005

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

This home
$349K$1.6M

This home is worth more than 97% of homes in Alpharetta 30005.

How it measures up in Alpharetta 30005

The dot is this home. The mark in the middle is the typical home in Alpharetta 30005.

Estimated value$1,505,781
CheaperTypical $752,856Pricier

Pricier than 97% of homes nearby

Price per ft²$306
CheaperTypical $263Pricier

Pricier than 83% of homes nearby

Living area4,924 ft²
SmallerTypical 2,910 ft²Bigger

Bigger than 97% of homes nearby

Lot size0.59 ac
SmallerTypical 0.31 acBigger

Bigger than 90% of homes nearby

Year built1997
OlderTypical 1996Newer

Newer than 63% of homes nearby

How 1375 Portmarnock Dr ranks against every home in each area.
MeasureThis homeWindwardAlpharetta 30005Fulton County
Estimated valuepricier than$1,505,78190% of homes97% of homes94% of homes
Price per ft²pricier than$30668% of homes83% of homes72% of homes
Living areabigger than4,924 ft²93% of homes97% of homes96% of homes
Lot sizebigger than0.59 ac81% of homes90% of homes84% of homes
Year builtnewer than199769% of homes63% of homes60% of homes

About 1375 Portmarnock Dr

How much is 1375 Portmarnock Dr, Alpharetta, GA worth?

The TopHap Estimate for 1375 Portmarnock Dr, Alpharetta, GA is $1,505,781 as of Sep 24, 2026. The likely range is $1,416,712 to $1,594,850. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1375 Portmarnock Dr, Alpharetta, GA last sell?

1375 Portmarnock Dr, Alpharetta, GA last sold on Dec 29, 1997 for $550,000, according to the county's recorded deed.

How big is 1375 Portmarnock Dr, Alpharetta, GA?

1375 Portmarnock Dr, Alpharetta, GA has 4 bedrooms, 4.5 bathrooms, 4,924 square feet of living space and a 0.59-acre lot.

When was 1375 Portmarnock Dr, Alpharetta, GA built?

1375 Portmarnock Dr, Alpharetta, GA was built in 1997, making it 29 years old. It is a conventional home. The building has 1 story.

What schools serve 1375 Portmarnock Dr, Alpharetta, GA?

1375 Portmarnock Dr, Alpharetta, GA is assigned to Webb Bridge Middle School (middle), rated A+; Creek View Elementary School (elementary), rated A+; Alpharetta High School (high), rated A. All sit in Fulton County School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1375 Portmarnock Dr, Alpharetta, GA compare to other homes in Alpharetta 30005?

Among the 10,085 homes in Alpharetta 30005, it is worth more than 97% of them ($1,505,781 against a typical $752,856), its price per square foot is higher than 83% of them ($306 against a typical $263), it is bigger than 97% of them (4,924 ft² against a typical 2,910 ft²), its lot is bigger than 90% of them (0.59 ac against a typical 0.31 ac) and it is newer than 63% of them (1997 against a typical 1996). Measured against all of Fulton County, it is worth more than 94% 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 1375 Portmarnock Dr, Alpharetta, GA?

The 2025 property tax bill for 1375 Portmarnock Dr, Alpharetta, GA was $9,386. The county assessed it at $615,160.

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