Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$173,906$183 / 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
Last sold for $109,200 on May 24, 2019

404 KNOB CIR

DENISON, TX 75021
0
Baths
952 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1959
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$174K
$161K low$187K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$109,200 · May 24, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,713 (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.$146,272 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$35,423
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$110,849
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$142,204
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$146,272

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.8 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
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.2001
Lot (acres)The size of the land the home sits on, from county records.0.15
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 15 ft²

Transaction History(2)

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
Lamar Elementary SchoolB
Elementary · Grades PK–4 · 0.5 mi
M
Scott Middle SchoolC
Middle · Grades 7–8 · 0.8 mi
H
Denison High SchoolC+
High · Grades 9–12 · 3.7 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%

Owner Tools

Do you own this home?
Claim this home

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

404 Knob Cir 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 79% of homes in Grayson County
  • Costs more per square foot than 67% of homes in Denison 75021
  • Smaller than 90% of homes in Grayson County
  • Has a smaller lot than 92% of homes in Denison 75021
  • Older than 77% of homes in Grayson County

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
$70K$820K

This home is worth more than 32% 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$173,906
CheaperTypical $230,249Pricier

Pricier than 32% of homes nearby

Price per ft²$183
CheaperTypical $161Pricier

Pricier than 67% of homes nearby

Living area952 ft²
SmallerTypical 1,424 ft²Bigger

Bigger than 13% of homes nearby

Lot size0.15 ac
SmallerTypical 1 acBigger

Bigger than 8% of homes nearby

Year built1959
OlderTypical 1980Newer

Newer than 29% of homes nearby

How 404 Knob Cir ranks against every home in each area.
MeasureThis homeDenison 75021Grayson County
Estimated valuepricier than$173,90632% of homes21% of homes
Price per ft²pricier than$18367% of homes63% of homes
Living areabigger than952 ft²13% of homes10% of homes
Lot sizebigger than0.15 ac8% of homes10% of homes
Year builtnewer than195929% of homes23% of homes

About 404 Knob Cir

How much is 404 Knob Cir, Denison, TX worth?

The TopHap Estimate for 404 Knob Cir, Denison, TX is $173,906 as of Sep 24, 2026. The likely range is $160,803 to $187,009. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 404 Knob Cir, Denison, TX last sell?

404 Knob Cir, Denison, TX last sold on May 24, 2019 for $109,200, according to the county's recorded deed.

How big is 404 Knob Cir, Denison, TX?

404 Knob Cir, Denison, TX has 952 square feet of living space and a 0.15-acre lot.

When was 404 Knob Cir, Denison, TX built?

404 Knob Cir, Denison, TX was built in 1959, making it 67 years old. The building has 1 story.

What schools serve 404 Knob Cir, Denison, TX?

404 Knob Cir, Denison, TX is assigned to Lamar Elementary School (elementary), rated B; Scott Middle School (middle), rated C; Denison High School (high), rated C+. All sit in Denison Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 404 Knob Cir, Denison, TX compare to other homes in Denison 75021?

Among the 4,328 homes in Denison 75021, it is worth more than 32% of them ($173,906 against a typical $230,249), its price per square foot is higher than 67% of them ($183 against a typical $161), it is bigger than 13% of them (952 ft² against a typical 1,424 ft²), its lot is bigger than 8% of them (0.15 ac against a typical 1 ac) and it is newer than 29% of them (1959 against a typical 1980). Measured against all of Grayson County, it is worth more than 21% 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 404 Knob Cir, Denison, TX?

The 2024 property tax bill for 404 Knob Cir, Denison, TX was $1,713. The county assessed it at $146,272.

More homes on Knob Cir

Closest homes

More homes in Denison 75021

Assigned schools

Explore the area

See this home in context

Open 404 Knob Cir 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