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Single Family ResidenceResidential
$220,786$168 / 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 92How 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

520 E PARNELL ST

DENISON, TX 75021
0
Baths
1,315 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
2022
Year BuiltThe year the home was originally built, according to county records.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$221K
$203K low$238K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,116 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$231,662 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$35,625
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$196,037
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$233,223
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$231,662

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.43
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
55
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
92
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
54
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
13
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyGrayson
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2023
Lot (acres)The size of the land the home sits on, from county records.0.17
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 85 ft²

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
Terrell Elementary SchoolD+
Elementary · Grades PK–4 · 0.6 mi
H
Denison High SchoolC+
High · Grades 9–12 · 2.2 mi
M
Scott Middle SchoolC
Middle · Grades 7–8 · 2.2 mi

District: Denison Independent School District

Neighborhood · ZIP 75021These 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.137
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.37

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
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.1.2%
PopulationHow many people live in this area.10,482
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.170 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$55,250
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$76,407
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.42 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.62%

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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

520 E Parnell 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 65% of homes in Grayson County
  • Smaller than 69% of homes in Grayson County
  • Has a smaller lot than 78% of homes in Grayson County
  • Newer than 97% of homes in Denison 75021

What homes are worth in Denison 75021

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

This home
$68K$826K

This home is worth more than 48% of homes in Denison 75021.

How it measures up in Denison 75021

The dot is this home. The mark in the middle is the typical home in Denison 75021.

Estimated value$220,786
CheaperTypical $229,632Pricier

Pricier than 48% of homes nearby

Price per ft²$168
CheaperTypical $160Pricier

Pricier than 56% of homes nearby

Living area1,315 ft²
SmallerTypical 1,431 ft²Bigger

Bigger than 42% of homes nearby

Lot size0.17 ac
SmallerTypical 1 acBigger

Bigger than 24% of homes nearby

Year built2022
OlderTypical 1979Newer

Newer than 97% of homes nearby

How 520 E Parnell St ranks against every home in each area.
MeasureThis homeDenison 75021Grayson County
Estimated valuepricier than$220,78648% of homes35% of homes
Price per ft²pricier than$16856% of homes53% of homes
Living areabigger than1,315 ft²42% of homes31% of homes
Lot sizebigger than0.17 ac24% of homes22% of homes
Year builtnewer than202297% of homes94% of homes

About 520 E Parnell St

How much is 520 E Parnell St, Denison, TX worth?

The TopHap Estimate for 520 E Parnell St, Denison, TX is $220,786 as of Sep 24, 2026. The likely range is $203,088 to $238,484. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 520 E Parnell St, Denison, TX?

520 E Parnell St, Denison, TX has 1,315 square feet of living space and a 0.17-acre lot.

When was 520 E Parnell St, Denison, TX built?

520 E Parnell St, Denison, TX was built in 2022, making it 4 years old.

What schools serve 520 E Parnell St, Denison, TX?

520 E Parnell St, Denison, TX is assigned to Terrell Elementary School (elementary), rated D+; Denison High School (high), rated C+; Scott Middle School (middle), rated C. All sit in Denison Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 520 E Parnell St, Denison, TX compare to other homes in Denison 75021?

Among the 4,328 homes in Denison 75021, it is worth more than 48% of them ($220,786 against a typical $229,632), its price per square foot is higher than 56% of them ($168 against a typical $160), it is bigger than 42% of them (1,315 ft² against a typical 1,431 ft²), its lot is bigger than 24% of them (0.17 ac against a typical 1 ac) and it is newer than 97% of them (2022 against a typical 1979). Measured against all of Grayson County, it is worth more than 35% 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 520 E Parnell St, Denison, TX?

The 2024 property tax bill for 520 E Parnell St, Denison, TX was $4,116. The county assessed it at $231,662.

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