667 Killary Down is a 3,179 square foot house on a 0.49 acre lot with 3 bedrooms and 3.5 bathrooms. - it last sold on December 19, 2001 for $330,000. Based on Redfin's Weldon Spring data, we estimate the home's value is $716,363.
Single-familyProperty Type
1994Year Built
0.49 acresLot Size
$225Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$716,363
$386K since sold in December 2001$14K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 32.1% higher than the average sale price ($542K) 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
Nov 4, 2025 • Final
Mechanical / electrical / plumbing
HVAC
Aug 23, 2024 • Final
Mechanical / electrical / plumbing
Electrical
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
Basement Information
Basement Sq. Ft: 1,320
Basement Finish: Finished
Bathroom Information
# of Full Baths: 3
# of 1/2 Baths: 1
Heating & Cooling
Heating Fuel Type: Gas
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Fireplace Type: 2 Story 1 Opening
Has Fireplace
Room Information
# of Rooms: 9
Exterior
Exterior Information
Physical Condition: Average
Foundation Type: Continuous Wall
Building Construction Quality: Good
Exterior Wall: Brick
Property Information
Subdivision Name: WHITMOOR COUNTRY CLUB #102
Living Sq. Ft: 3,179
Building Sq. Ft: 4,235
# of Stories: 2
Stories Type: 2
Legal Description: WHITMOOR COUNTRY CLUB #102 LOT 350
Parking & Garage Information
# of Parking Spaces: 3
Lot Information
# of Buildings: 1
Land Sq. Ft: 21,344
Legal Lot Number: 350
School Tax District: FRANCIS HOWELL
Municipality Name: WELDON SPRINGS
Acres: 0.49
County Use Description: SINGLE FAMILY RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 3.5
Sq. Ft.: 3,179
Stories: 2.0
Lot Size: 0.49 acres
Style: Single Family Residential
Year Built: 1994
Year Renovated: —
County: St. Charles County
APN: 3-0036-6591-00-0350.0000000
Home facts updated by county records on Aug 7, 2026
Around this home
Schools
Independence Elementary School
Public K-5 • Assigned • 2.6mi
10/10
Bryan Middle School
Public 6-8 • Assigned • 2.5mi
9/10
Francis Howell High School
Public 9-12 • Assigned • 5.3mi
10/10
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
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
5/10 Heat Factor
7 days above 107° expected this year, 20 days in 30 years
2/10 Wind Factor
1% chance of strong winds in next 30 years
2/10 Air Factor
2 unhealthy days expected this year, 2 days in 30 years
Provided by First Street
Historical weather
Weldon Spring, MO • 63304
Average low and high temperatures (°F)
38
21
47
28
67
42
72
51
76
56
86
67
90
72
86
66
84
61
74
51
57
41
47
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.7 hours in
June and 4.2 hours in December, which is comparable to the
U.S. average for solar exposure.
9.7 hrs
4.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$681,000 – $824,000
Reach more buyers when you sell with Redfin. Save up to $7,164 in fees.3 minutes to get started.