Diana Hardek Real Estate Agent - Keller Williams Premiere Properties

510 W Prairie Ave, Wheaton, IL For Sale $899,900 - listed by Diana Hardek — For Sale $899,900

Diana Hardek listing agent for 222 Grays Dr Unit 4, Oswego, IL - sold for $317,000 — Sold $317,000

8212 Anchor Dr Unit 508, Woodridge, IL For Sale $227,900 - listed by Diana Hardek — For Sale $227,900

Diana Hardek buyer's agent for 696 Farnham Ln, Wheaton, IL - sold for $623,000 — Sold $623,000

1110 N President St, Wheaton, IL For Sale $425,000 - listed by Diana Hardek — For Sale $425,000

Diana Hardek

Wheaton IL

Keller Williams Premiere Properties

118 Closed Sales

$61M Total Value

$307.5K - $1.2M Price Range

$516.8K Average Price

Prior 5 years

About Diana

Diana famously got her start in real estate in the 80’s managing 27 of her own apartment units while still maintaining the status as the #1 sales agent at her brokerage at that time. Experience matters and Diana has earned her stripes with over $100 million in career sales, and decades of practicing real estate. Steady and calm, she is a skilled negotiator with a never-give-up, can-do attitude. Diana also has a high-level sports background, having played collegiate volleyball and former competitor on the women’s racquetball pro-tour. She is too modest to share this, but Diana once won the U.S. Open Racquetball National Championship. Despite her unfailing graciousness, Diana maintains the competitive zeal that made her a champion, contributing to her success as a negotiator. As soon as clients meet her, they can tell that she treats her clients like family. Outside of real estate, Diana can be found on the golf course, playing with her grandchildren, watching The Voice, getting together with friends, and most recently, CrossFit!

Diana is also a certified stager!

Home Types: Condo, House, Townhouse, Multifamily, Lot/Land

Years of Experience: 41

Education: Eastern Illinois University

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	15
Total Value	$9,564,713
Average Sale Price	$637,648
Price Range	$317K - $1.2M

Buyer Deals
Total Deals	15
Total Value	$7,862,500
Average Sale Price	$524,167
Price Range	$149K - $900K

1 Year View by Quarter

Seller Deals
Total Deals	25
Total Value	$16,586,013
Average Sale Price	$663,441
Price Range	$235K - $1.2M

Buyer Deals
Total Deals	21
Total Value	$10,257,000
Average Sale Price	$488,429
Price Range	$149K - $900K

2 Year View by Quarter

Seller Deals
Total Deals	75
Total Value	$41,172,363
Average Sale Price	$548,965
Price Range	$135K - $1.2M

Buyer Deals
Total Deals	43
Total Value	$19,809,000
Average Sale Price	$460,674
Price Range	$149K - $900K

5 Year View

Areas Diana is Experienced In

Diana's Listings and Deals

Diana's Active Listings

$899,900
- 4 Beds
- 2.5 Baths
- 2,349 Sq Ft
510 W Prairie Ave

Wheaton, IL
Stunning Mid Century expanded ranch home steps away from Northside Park! This home is perfectly situated on a quiet, tree lined highly coveted street! The welcoming front covered porch adds to the curb appeal of this quality built 4 bedroom, 2.5 bath home and with the walk out basement has a total of 4,111 sq.ft. of living space. The kitchen has been thoughtfully updated with a large island and

Diana Hardek Keller Williams Premiere Properties

$227,900
- 2 Beds
- 2 Baths
- 1,111 Sq Ft
8212 Anchor Dr

Unit 508

Woodridge, IL
Largest model with the best VIEW of the pond! Open floor plan with lots of natural light streaming in. The private balcony, kitchen, and 2nd bedroom have spectacular views of the pond and all of the wildlife that goes with it! Large foyer boasts 2 spacious closets and a mirrored laundry/mechanical room door that is steel plated & reinforced. There is an updated steel railing that was custom built

Diana Hardek Keller Williams Premiere Properties

$425,000
- 3 Beds
- 2 Baths
- 1,125 Sq Ft
1110 N President St

Wheaton, IL
Super cute, adorable, charming, & great curb appeal all describe this 3 bedroom 2 bath brick Cape Cod home! 4 Blocks to Wheaton College Campus and College Station Train station! 1st floor bedroom with adjacent full bath, hardwood floors, skylights, light and bright! Kitchen has all stainless steel appliances, granite counter tops, solid oak cabinets, & beautiful hardwood floors. Upstairs features

Diana Hardek Keller Williams Premiere Properties

Recently Sold

$317,000

Sold Jul 24, 2026
- 2 Beds
- 1.5 Baths
- 1,273 Sq Ft
222 Grays Dr

Unit 4

Oswego, IL
- 6% Above List
- 4 Days On Market
- $249/SF
- Current Est. Value $311K
Diana Hardek Keller Williams Premiere Properties

$1,175,000

Sold Jul 14, 2026
- 5 Beds
- 6 Baths
- 6,900 Sq Ft
4N446 Mountain Ash Dr

Wayne, IL
- 2% Below List
- 18 Days On Market
- $170/SF
- Current Est. Value $1M
Diana Hardek Keller Williams Premiere Properties

$770,000

Sold Jun 30, 2026
- 4 Beds
- 1.5 Baths
- 2,374 Sq Ft
661 Willow Rd

Naperville, IL
- 10% Above List
- 8 Days On Market
- $324/SF
- Current Est. Value $731K
Diana Hardek Keller Williams Premiere Properties

$868,013

Sold Jun 22, 2026
- 5 Beds
- 3.5 Baths
- 3,839 Sq Ft
909 S Wheaton Ave

Wheaton, IL
- 8% Below List
- 26 Days On Market
- $226/SF
- Current Est. Value $883K
Diana Hardek Keller Williams Premiere Properties

$810,000

Sold Jun 12, 2026
- 4 Beds
- 2.5 Baths
- 2,642 Sq Ft
2053 Somerset Ln

Wheaton, IL
- 1% Above List
- 3 Days On Market
- $307/SF
- Current Est. Value $810K
Diana Hardek Keller Williams Premiere Properties

$445,000

Sold Jun 12, 2026
- 5 Beds
- 3.5 Baths
- 2,300 Sq Ft
2940 Arbor Ln

Aurora, IL
- 1% Below List
- 54 Days On Market
- $193/SF
- Current Est. Value $451K
Diana Hardek Keller Williams Premiere Properties

$430,000

Sold May 28, 2026
- 3 Beds
- 2 Baths
- 1,343 Sq Ft
6812 Woodridge Dr

Woodridge, IL
- 10% Above List
- 3 Days On Market
- $320/SF
- Current Est. Value $423K
Diana Hardek Keller Williams Premiere Properties

$405,000

Sold Mar 6, 2026
- 3 Beds
- 2 Baths
- 1,608 Sq Ft
2S600 Angeline Ct

Warrenville, IL
- 1% Above List
- 1 Day On Market
- $252/SF
- Current Est. Value $416K
Diana Hardek Keller Williams Premiere Properties

$449,900

Sold Dec 5, 2025
- 2 Beds
- 2 Baths
- 1,574 Sq Ft
4493 Capstan Dr

Hoffman Estates, IL
- 2 Days On Market
- $286/SF
- Current Est. Value $464K
Diana Hardek Keller Williams Premiere Properties

Awards and Designations

Chicago Five Star Agent
DuPage Top Producers
Realty Executive Diamond Award
NAR - National Association of Realtors
SRES - SRES®, Seniors Real Estate Specialist

Other Experience

First Time Homebuyers, Investments, Senior Communities, Distressed Properties

Agent License: Illinois 475127196

Diana Hardek

(708) 554-7858

Nearby Homes

Diana Hardek

About Diana

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

2 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Areas Diana is Experienced In

Diana's Listings and Deals

Diana's Active Listings

Recently Sold

Awards and Designations

Other Experience