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Penny O'Brien

5.0stars, 67 Reviews
Baird & Warner
272 Closed Sales
$161.9M Total Value
$364K - $1.7M Price Range
$595.3K 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
32
Total Value
$23,931,000
Average Sale Price
$747,844
Price Range
$195K - $1.7M

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
61
Total Value
$42,382,777
Average Sale Price
$694,800
Price Range
$195K - $1.7M

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
172
Total Value
$108,734,453
Average Sale Price
$632,177
Price Range
$61K - $1.7M

Buyer Deals

Total Deals
100
Total Value
$53,188,015
Average Sale Price
$531,880
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, 67 Reviews

5/13/26Sundar Ramakrishnan

Google Review

Working with Penny O’Brien over the past year has been an outstanding experience from start to finish. From the early planning stages all the way through closing, Penny brought deep local market knowledge, strong relationships in the community, and practical guidance that helped us make the right decisions at every step. Her pricing strategy was spot on, and it played a major role in maximizing our sale price.

What truly sets Penny apart is her full-service approach. She connected us with an excellent team for painting, legal support, and everything needed to prepare our home for sale. Most importantly, she earned our complete trust—especially when she personally looked after our locked home during the preparation process. Penny genuinely cares about her clients and goes above and beyond. I highly recommend her to anyone looking for a knowledgeable, trustworthy, and results-driven realtor.

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

Agent License: Illinois 475158156
Agent Photo

Penny O'Brien