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Single Family ResidenceResidential
$605,092$231 / 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

421 BLACK DIAMOND CT

FAIRVIEW, TX 75069
2
Beds
3
Baths
2,618 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.
2005
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$605K
$568K low$642K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,818 (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.$629,667 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$207,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$421,767
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$629,667
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$629,667

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCollin
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Mat/Raft Foundation (Slab)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
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 · 444 ft²

Transaction History(3)

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
Puster Elementary SchoolA+
Elementary · Grades KG–4 · 2.4 mi
H
Lovejoy High SchoolA
High · Grades 9–12 · 2.7 mi
M
Willow Springs Middle SchoolA+
Middle · Grades 7–8 · 3.6 mi

District: Lovejoy Independent School District

Neighborhood · ZIP 75069These 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.125
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.27

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.47,669
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,424 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$77,326
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,993
Average tempThe average temperature here across a full year.65°F
Annual precipHow much rain and melted snow falls here in a typical year.41 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

421 Black Diamond Ct 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 70% of homes in McKinney 75069
  • Costs more per square foot than 73% of homes in Collin County
  • Bigger than 72% of homes in McKinney 75069
  • Newer than 65% of homes in McKinney 75069

What homes are worth in McKinney 75069

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

This home
$227K$2.1M

This home is worth more than 70% of homes in McKinney 75069.

How it measures up in McKinney 75069

The dot is this home. The mark in the middle is the typical home in McKinney 75069.

Estimated value$605,092
CheaperTypical $447,298Pricier

Pricier than 70% of homes nearby

Price per ft²$231
CheaperTypical $245Pricier

Pricier than 39% of homes nearby

Living area2,618 ft²
SmallerTypical 1,941 ft²Bigger

Bigger than 72% of homes nearby

Year built2005
OlderTypical 2000Newer

Newer than 65% of homes nearby

How 421 Black Diamond Ct ranks against every home in each area.
MeasureThis homeMcKinney 75069Collin County
Estimated valuepricier than$605,09270% of homes67% of homes
Price per ft²pricier than$23139% of homes73% of homes
Living areabigger than2,618 ft²72% of homes56% of homes
Year builtnewer than200565% of homes55% of homes

About 421 Black Diamond Ct

How much is 421 Black Diamond Ct, Fairview, TX worth?

The TopHap Estimate for 421 Black Diamond Ct, Fairview, TX is $605,092 as of Sep 24, 2026. The likely range is $568,439 to $641,745. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Black Diamond Ct, Fairview, TX last sell?

421 Black Diamond Ct, Fairview, TX last sold on Nov 24, 2025, according to the county's recorded deed.

How big is 421 Black Diamond Ct, Fairview, TX?

421 Black Diamond Ct, Fairview, TX has 2 bedrooms, 3 bathrooms and 2,618 square feet of living space.

When was 421 Black Diamond Ct, Fairview, TX built?

421 Black Diamond Ct, Fairview, TX was built in 2005, making it 21 years old. The building has 1 story.

What schools serve 421 Black Diamond Ct, Fairview, TX?

421 Black Diamond Ct, Fairview, TX is assigned to Puster Elementary School (elementary), rated A+; Lovejoy High School (high), rated A; Willow Springs Middle School (middle), rated A+. All sit in Lovejoy Independent School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Black Diamond Ct, Fairview, TX compare to other homes in McKinney 75069?

Among the 11,738 homes in McKinney 75069, it is worth more than 70% of them ($605,092 against a typical $447,298), its price per square foot is higher than 39% of them ($231 against a typical $245), it is bigger than 72% of them (2,618 ft² against a typical 1,941 ft²) and it is newer than 65% of them (2005 against a typical 2000). Measured against all of Collin County, it is worth more than 67% 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 421 Black Diamond Ct, Fairview, TX?

The 2024 property tax bill for 421 Black Diamond Ct, Fairview, TX was $2,818. The county assessed it at $629,667.

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