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Penny O'Brien

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5.0stars, 66 Reviews
Baird & Warner
280 Closed Sales
$164.8M Total Value
$367K - $1.4M Price Range
$588.5K Average Price
Prior 5 years

About Penny

"PENNY O'BRIEN, TOP NAPERVILLE REALTOR Determination, confidence & dedication consistently lands Penny O'Brien in the top 1% of all Chicagoland agents & top agents in Naperville, IL. Penny is a prominent listing agent in Naperville. Her sale to list price is 3.3 % higher than the average agent. Penny's business continues to grow primarily through referral & repeat clients. With sellers, she believes in collaborative pricing to let the sellers choose the path for the results they wish to achieve. With buyers, her top-notch negotiation skills result in a win in most multiple offer situations."
Home Types: House, MultiFamily, Townhouse, Condo, Lot/Land
Years of Experience: 13

Transaction History

Seller Deals

Total Deals
29
Total Value
$20,623,500
Average Sale Price
$711,155
Price Range
$195K - $1.1M

Buyer Deals

Total Deals
5
Total Value
$3,139,900
Average Sale Price
$627,980
Price Range
$360K - $910K

Production Over Time

1 Year View by Quarter

Seller Deals

Total Deals
58
Total Value
$39,075,277
Average Sale Price
$673,712
Price Range
$195K - $1.1M

Buyer Deals

Total Deals
18
Total Value
$10,716,400
Average Sale Price
$595,356
Price Range
$171K - $1.1M

Production Over Time

2 Year View by Quarter

Seller Deals

Total Deals
174
Total Value
$108,318,453
Average Sale Price
$622,520
Price Range
$61K - $1.4M

Buyer Deals

Total Deals
106
Total Value
$56,453,515
Average Sale Price
$532,580
Price Range
$79K - $1.2M

Production Over Time

5 Year View

Penny's Listings and Deals

Other Experience

First Time Home Buyers, Investments, Luxury Homes, New Construction

Penny's Reviews

5.0stars, 66 Reviews

3/31/26Amy Houck

Google Review

I’ve had the pleasure of working with Penny O’Brien on three separate real estate transactions—both buying and selling—and I truly can’t recommend her highly enough.

Penny provides a level of service that feels completely tailored to you. She takes the time to understand your goals, preferences, and concerns, and then guides you through the process with expertise and care. Her attention to detail, responsiveness, and professionalism are exceptional, and she consistently goes above and beyond to make what can be a stressful process feel seamless.

What really sets Penny apart is how invested she is in her clients. You never feel like just another transaction—she is thoughtful, strategic, and a genuine advocate every step of the way. On top of that, she’s simply a joy to work with.

If you’re looking for a real estate agent who is knowledgeable, attentive, and truly delivers a personalized experience, Penny is the one!

2/5/26Nate Evett

Google Review

Penny ran a smooth, efficient process that got us multiple offers all above asking price. Extremely pleased with the results

12/13/25Alejandra Seader

Google Review

We loved working with Penny, she is a very good Real Estate Agent. Since our first interaction with her we loved that she was transparent, honest and very knowledgeable. She guided us through the process of buying a new home and selling our old home, it all happened miraculously in a 6 week span. We closed both homes on the same day and moved in on that date as well. Penny was great and always available, she was on target for our selling home's price and a good negotiator for the new home. Her team is amazing (lawyer, broker, stager and photographer), thanks to this team it all went smoothly. With her selling strategy she drove 40 walking groups during a weekend open house and a couple of days of showings. We are grateful to Penny for her work, we recommend her and would work with her again.

Agent License: Illinois 475158156
Agent Photo

Penny O'Brien

Responds Quickly