Welcome home to this beautifully updated 4-bedroom, 2.5-bath residence situated on a large corner lot in the heart of O'Fallon. Fresh paint and new flooring throughout create a bright, modern feel and make this home truly move-in ready. The spacious floor plan offers generous living areas, a cozy fireplace, and plenty of room for both everyday living and entertaining. Step outside onto the deck, the perfect place to enjoy your morning coffee, host gatherings, or unwind while overlooking the backyard. The unfinished walkout lower level provides abundant storage space and endless potential for future finishing to suit your needs. Situated on an expansive corner lot and conveniently located near parks, shopping, dining, and major highways, this home offers the perfect combination of updates, space, and location.
Pending
Listed by: EXP Realty, LLC • Christina Swyers • Contact: 314-629-5867
$399,900
21 Dunmore Cir, O'Fallon, MO 63368
4beds
2,309sqft
Single Family Residence
Built in 1991
0.38 Acres Lot
$441,300 Zestimate®
$173/sqft
$25/mo HOA
What's special
Cozy fireplaceExpansive corner lotLarge corner lotBright modern feelSpacious floor plan
- 24 days |
- 1,397 |
- 89 |
Likely to sell faster than
Zillow last checked:
Listing updated:
Listed by:
Christina Swyers 314-629-5867,
EXP Realty, LLC,
Kayleigh N Roberts 636-290-0461,
EXP Realty, LLC
Source: MARIS,MLS#: 26034315
Originating MLS: St. Louis Association of REALTORS
Originating MLS: St. Louis Association of REALTORSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
- Main level bathrooms: 1
Heating
- Forced Air
Cooling
- Central Air
Appliances
- Laundry: Laundry Room, Main Level
Features
- Ceiling Fan(s), Eat-in Kitchen, Kitchen Island, Pantry, Separate Dining
- Flooring: Carpet, Laminate
- Basement: Concrete
- Number of fireplaces: 1
- Fireplace features: Family Room
Interior area
- Total structure area: 2,309
- Total interior livable area: 2,309 sqft
- Finished area above ground: 2,309
Property
Parking
- Total spaces: 2
- Parking features: Garage - Attached
- Attached garage spaces: 2
Features
- Levels: Two
- Patio & porch: Deck
Lot
- Size: 0.38 Acres
- Features: Corner Lot
Details
- Parcel number: 3157C6638000281.0000000
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Ranch
- Property subtype: Single Family Residence
Materials
- Vinyl Siding
Condition
- Year built: 1991
Utilities & green energy
- Electric: Other
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Subdivision: Monticello Village B
HOA
- Has HOA: Yes
- Amenities included: Common Ground, Tennis Court(s)
- Services included: Clubhouse, Pool
- HOA fee: $300 annually
- HOA name: Monticello Village B
Location
- Region: Ofallon
Financial & listing details
- Price per square foot: $173/sqft
- Tax assessed value: $373,484
- Annual tax amount: $4,522
- Date on market: 6/12/2026
- Cumulative days on market: 24 days
- Listing terms: Cash,Conventional,FHA,VA Loan
Estimated market value
$441,300
$415,000 - $468,000
$2,839/mo
Price history
| Date | Event | Price |
|---|---|---|
| 6/16/2026 | Pending sale | $399,900$173/sqft |
Source:  MARIS #26034315 Report a problem | ||
| 6/12/2026 | Listed for sale | $399,900$173/sqft |
Source: MARIS #26034315 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $4,522 +6.5% | $70,962 +7.5% |
| 2024 | $4,245 -0.1% | $65,999 |
| 2023 | $4,247 +16.3% | $65,999 +25.4% |
| 2022 | $3,651 | $52,625 |
| 2021 | -- | $52,625 +5.9% |
| 2020 | -- | $49,705 |
| 2019 | $3,513 | $49,705 +6.4% |
| 2018 | $3,513 +1.5% | $46,697 |
| 2017 | $3,461 +11.2% | $46,697 +15.4% |
| 2016 | $3,113 +0.6% | $40,474 +0.2% |
| 2015 | $3,093 +7.1% | $40,395 +9.6% |
| 2014 | $2,889 | $36,867 |
| 2013 | -- | $36,867 -7.3% |
| 2012 | -- | $39,780 -0.8% |
| 2011 | -- | $40,110 |
| 2010 | -- | $40,110 |
| 2009 | -- | $40,110 -6.5% |
| 2008 | -- | $42,890 -80.1% |
| 2007 | -- | $215,200 |
| 2006 | -- | $215,200 |
| 2005 | -- | $215,200 +16.9% |
| 2004 | -- | $184,050 |
| 2003 | -- | $184,050 |
| 2002 | -- | -- |
| 2001 | -- | -- |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: 63368
Nearby schools
GreatSchools rating
- 5/10John Weldon Elementary SchoolGrades: PK-5Distance: 1.3 mi
- 8/10Francis Howell Middle SchoolGrades: 6-8Distance: 1.3 mi
- 10/10Francis Howell High SchoolGrades: 9-12Distance: 2.2 mi
Schools provided by the listing agent
- Elementary: John Weldon Elem.
- Middle: Francis Howell Middle
- High: Francis Howell High
Source: MARIS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
- Missouri
- Saint Charles County
- O Fallon
- 63368
- 21 Dunmore Cir
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