1821 Long Prairie Rd is a 3,879 square foot house on a 8,978 square foot lot with 5 bedrooms and 4 bathrooms. Based on Redfin's Allen data, we estimate the home's value is $652,905.
Single-familyProperty Type
2002Year Built
8,978 sq ftLot Size
$168Est. Price/Sq.Ft.
3 spacesParking
Source:Public Records
Redfin Estimate
$652,905
$0 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6.6% lower than the average sale price ($699K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jan 7, 2026 • Final
Foundation repair - residential
Install new pilings.
Grading
Sep 12, 2023 • Final
Re-roof - residential
Perform a reroof on a residential building.
Roofing
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Bathroom Information
# of Full Baths: 4
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 11
Exterior
Exterior Information
Foundation Type: Slab
Construction Type: Wood
Exterior Wall: Brick
Property Information
Subdivision Name: SUMMERFIELD PH TWO
Living Sq. Ft: 3,879
Ground Floor Sq. Ft: 2,463
Building Sq. Ft: 4,519
# of Stories: 2
Legal Description: SUMMERFIELD PHASE TWO (CAL), BLK H, LOT 10
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 640
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,978
Legal Lot Number: 10
Legal Block Number: H
Municipality Type: CAL
Municipality Name: COLLIN
Acres: 0.21
County Use Description: SGL-FAM-RES-HOME
State Use Description: RESIDENTIAL SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2025
Tax District County: COLLIN COUNTY
Public facts
Beds: 5
Baths: 4.0
Sq. Ft.: 3,879
Stories: 2.0
Lot Size: 8,978 square feet
Style: Single Family Residential
Year Built: 2002
Year Renovated: 2005
County: Collin County
APN: R-4956-00H-0100-1
Home facts updated by county records on Jun 26, 2026
Around this home
Schools
David And Lynda Olson Elementary School
Public PreK-6 • Assigned • 0.3mi
9/10
Walter & Lois Curtis Middle School
Public 7-8 • Assigned • 0.9mi
10/10
Allen High School
Public 9-12 • Assigned • 2.5mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
4/10 Fire Factor
0.93% chance of being in a wildfire in next 30 years
7/10 Heat Factor
7 days above 111° expected this year, 22 days in 30 years
6/10 Wind Factor
27% chance of strong winds in next 30 years
3/10 Air Factor
3 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Allen, TX • 75002
Average low and high temperatures (°F)
55
33
66
42
77
53
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60
84
64
93
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96
75
98
76
91
68
85
61
72
51
62
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
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Sun exposure
In this area, properties receive around 9.9 hours in
June and 5.4 hours in December, placing it above the
U.S. average for solar exposure.
9.9 hrs
5.4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$621,000 – $751,000
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