Andrea O'Mahony Real Estate Agent - Alexander Realty Inc

1527 Ridge Hill Ct, O Fallon, MO Pending $639,000 - listed by Andrea O'Mahony — Pending $639,000

Andrea O'Mahony listing agent for 3174 Canal St, Saint Charles, MO - sold for $334,999 — Sold

Andrea O'Mahony buyer's agent for 110 Glendalough Ln, Weldon Spring, MO - sold for $795,000 — Sold

Andrea O'Mahony listing agent for 200 Copper Stone Ct, Wentzville, MO - sold for $465,000 — Sold

Andrea O'Mahony

St. Charles MO

Alexander Realty Inc

44 Closed Sales

$20.3M Total Value

$125K - $1.8M Price Range

$460.5K Average Price

Prior 5 years

About Andrea

Originally from Kansas City I came to St. Louis via New York in 1990. After investing in real estate I decided to become a licensed REALTOR®. I also bring with me over 20 years of experience from the fashion and airline industries. I have a passion for homes and I am excited to find you the one of your dreams!

Home Types: House, Townhouse, Condo, Mobile Homes, Co-op, Lot/Land

Years of Experience: 11

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	3
Total Value	$905,000
Average Sale Price	$301,667
Price Range	$98K - $470K

Buyer Deals
Total Deals	5
Total Value	$4,008,900
Average Sale Price	$801,780
Price Range	$279K - $1.7M

1 Year View by Quarter

Seller Deals
Total Deals	9
Total Value	$3,704,900
Average Sale Price	$411,656
Price Range	$98K - $925K

Buyer Deals
Total Deals	12
Total Value	$7,440,000
Average Sale Price	$620,000
Price Range	$192K - $1.7M

Seller Deals
Total Deals	17
Total Value	$5,847,800
Average Sale Price	$343,988
Price Range	$98K - $925K

Buyer Deals
Total Deals	27
Total Value	$14,414,100
Average Sale Price	$533,856
Price Range	$125K - $1.8M

5 Year View

Areas Andrea is Experienced In

Andrea's Listings and Deals

Andrea's Active Listings

$639,000

Pending
- 4 Beds
- 3 Baths
- 4,010 Sq Ft
1527 Ridge Hill Ct

O Fallon, MO
Beautiful Atrium Ranch on a quiet cul-de-sac with side-entry garage and over 4,000 sq ft of living space! Fresh updates include new flooring, paint, light fixtures and hardware. Open main level features a two-way gas fireplace and private primary suite separate from two additional bedrooms. Finished walkout lower level offers a 4th bedroom near a full bath, updated bar, gas fireplace and spacious

Andrea O'Mahony Alexander Realty Inc

Recently Sold

$334,999

Sold Aug 27, 2026

Last List Price
- 3 Beds
- 4 Baths
- 1,742 Sq Ft
3174 Canal St

Saint Charles, MO
- 31 Days On Market
- $192/SF
- Current Est. Value $334K
Andrea O'Mahony Alexander Realty Inc

$465,000

Sold May 8, 2026

Last List Price
- 3 Beds
- 2 Baths
- 1,820 Sq Ft
200 Copper Stone Ct

Wentzville, MO
- 17 Days On Market
- $255/SF
Andrea O'Mahony Alexander Realty Inc

$96,900

Sold Oct 8, 2025

Last List Price
- 2 Beds
- 1 Bath
- 868 Sq Ft
12114 Natural Bridge Rd

Unit F

Bridgeton, MO
- 33 Days On Market
- $112/SF
- Current Est. Value $97K
Andrea O'Mahony Alexander Realty Inc

Price Undisclosed

Sold May 28, 2025
- 3 Beds
- 2.5 Baths
- 2,892 Sq Ft
201 Timberidge Dr

Saint Peters, MO
- 2 Days On Market
- Current Est. Value $376K
Andrea O'Mahony Alexander Realty Inc

Price Undisclosed

Sold Apr 29, 2025
- 3 Beds
- 2 Baths
- 1,140 Sq Ft
3628 Coriander Dr

Saint Charles, MO
- 28 Days On Market
- Current Est. Value $289K
Andrea O'Mahony Alexander Realty Inc

Price Undisclosed

Sold Dec 18, 2024
- 3 Beds
- 1.5 Baths
- 1,008 Sq Ft
121 Roland Ave

Ballwin, MO
- 1 Day On Market
- Current Est. Value $271K
Andrea O'Mahony Alexander Realty Inc

Price Undisclosed

Sold Dec 11, 2024
- 4 Beds
- 4.5 Baths
- 3,445 Sq Ft
718 Kenmare Ct

Dardenne Prairie, MO
- 150 Days On Market
- Current Est. Value $691K
Andrea O'Mahony Alexander Realty Inc

Price Undisclosed

Sold Jul 24, 2024
- 3 Beds
- 2 Baths
- 2,303 Sq Ft
11 Briarwood Ln

Saint Charles, MO
- 1 Day On Market
- Current Est. Value $337K
Andrea O'Mahony Alexander Realty Inc

Price Undisclosed

Sold Dec 8, 2023
- 3 Beds
- 2 Baths
- 1,860 Sq Ft
1102 Castle Pines Dr

Saint Peters, MO
- 21 Days On Market
- Current Est. Value $362K
Andrea O'Mahony Alexander Realty Inc

Other Experience

First Time Homebuyers, Investments, Military Families, Veteran's Programs, Senior Communities, Short Sales, Luxury Homes, New Construction

Andrea O'Mahony

(636) 224-3656

Andrea O'Mahony

About Andrea

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Areas Andrea is Experienced In

Andrea's Listings and Deals

Andrea's Active Listings

Recently Sold

Other Experience