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Single Family ResidenceResidential
$155,407$207 / 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 90How 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 $140,000 on Dec 5, 2023

3220 KNOX ST

PORTSMOUTH, VA 23704
1
Baths
751 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1947
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$155K
$139K low$172K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$140,000 · Dec 5, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,909 (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.$142,380 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$59,380
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$83,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$138,260
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$142,380

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.4 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Cottage
CountyPORTSMOUTH CITY
Lot (acres)The size of the land the home sits on, from county records.0.14
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Central
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

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

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

E
Douglass Park Elementary SchoolF
Elementary · Grades KG–6 · 0.4 mi
M
Cradock Middle SchoolF
Middle · Grades 7–8 · 1.3 mi
H
I. C. Norcom High SchoolD+
High · Grades 9–12 · 1.3 mi

District: Portsmouth City Public Schools

Neighborhood · ZIP 23704These 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.142
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.29

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.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.25%
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.20,780
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,409 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$47,951
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$65,674
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

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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

3220 Knox 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 95% of homes in Portsmouth city County
  • Costs more per square foot than 87% of homes in Portsmouth 23704
  • Smaller than 97% of homes in Portsmouth city County
  • Has a smaller lot than 76% of homes in Portsmouth city County
  • Older than 72% of homes in Portsmouth city County

What homes are worth in Portsmouth 23704

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

This home
$89K$463K

This home is worth more than 12% of homes in Portsmouth 23704.

How it measures up in Portsmouth 23704

The dot is this home. The mark in the middle is the typical home in Portsmouth 23704.

Estimated value$155,407
CheaperTypical $250,895Pricier

Pricier than 12% of homes nearby

Price per ft²$207
CheaperTypical $171Pricier

Pricier than 87% of homes nearby

Living area751 ft²
SmallerTypical 1,470 ft²Bigger

Bigger than 5% of homes nearby

Lot size0.14 ac
SmallerTypical 0.12 acBigger

Bigger than 55% of homes nearby

Year built1947
OlderTypical 1947Newer

Newer than 52% of homes nearby

How 3220 Knox St ranks against every home in each area.
MeasureThis homePortsmouth 23704Portsmouth city County
Estimated valuepricier than$155,40712% of homes5% of homes
Price per ft²pricier than$20787% of homes68% of homes
Living areabigger than751 ft²5% of homes3% of homes
Lot sizebigger than0.14 ac55% of homes24% of homes
Year builtnewer than194752% of homes28% of homes

About 3220 Knox St

How much is 3220 Knox St, Portsmouth, VA worth?

The TopHap Estimate for 3220 Knox St, Portsmouth, VA is $155,407 as of Sep 24, 2026. The likely range is $139,259 to $171,555. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3220 Knox St, Portsmouth, VA last sell?

3220 Knox St, Portsmouth, VA last sold on Dec 5, 2023 for $140,000, according to the county's recorded deed.

How big is 3220 Knox St, Portsmouth, VA?

3220 Knox St, Portsmouth, VA has 1 bathrooms, 751 square feet of living space and a 0.14-acre lot.

When was 3220 Knox St, Portsmouth, VA built?

3220 Knox St, Portsmouth, VA was built in 1947, making it 79 years old. It is a cottage home. The building has 1 story.

What schools serve 3220 Knox St, Portsmouth, VA?

3220 Knox St, Portsmouth, VA is assigned to Douglass Park Elementary School (elementary), rated F; Cradock Middle School (middle), rated F; I. C. Norcom High School (high), rated D+. All sit in Portsmouth City Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3220 Knox St, Portsmouth, VA compare to other homes in Portsmouth 23704?

Among the 6,186 homes in Portsmouth 23704, it is worth more than 12% of them ($155,407 against a typical $250,895), its price per square foot is higher than 87% of them ($207 against a typical $171), it is bigger than 5% of them (751 ft² against a typical 1,470 ft²), its lot is bigger than 55% of them (0.14 ac against a typical 0.12 ac) and it is newer than 52% of them (1947 against a typical 1947). Measured against all of Portsmouth city County, it is worth more than 5% 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 3220 Knox St, Portsmouth, VA?

The 2025 property tax bill for 3220 Knox St, Portsmouth, VA was $1,909. The county assessed it at $142,380.

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