

About Penny
Transaction History
- 1 Year
- 2 Year
- 5 Year
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
Neighborhoods Penny is Experienced In
Penny's Listings and Deals
Penny's Active Listings
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$975,000
- 5 Beds
- 5 Baths
- 3,617 Sq Ft
- 3003 Kingbird Ct
- Unit IV
- Naperville, IL
MULTIPLE OFFERS HAVE BEEN RECEIVED. OFFERS DUE BY 12:00 MONDAY 10/20. Tall Grass at its Finest! Nothing compares to this impeccably renovated 5-bedroom, 5-bath home-where high-end updates and stunning design blend together perfectly! Tall Grass at Its Finest! Perfectly situated on a quiet cul-de-sac in the highly sought-after Tall Grass community, this home offers access to resort-style amenities
Penny O'Brien Baird & Warner
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$875,000
- 4 Beds
- 5 Baths
- 3,446 Sq Ft
- 3420 Sunnyside Ct
- Naperville, IL
Style and sophistication shine throughout this beautifully refreshed home! Recently updated with fresh City Loft paint & new carpet upstairs. Hardwood floors were added & existing floors refinished on the main level. Not your typical floor plan - this home offers thoughtful design and distinctive details throughout. The impressive two-story foyer features a turned staircase with stained treads
Penny O'Brien Baird & Warner
Other Experience
Penny's Reviews
12/10/25Crystal Brasiola
Google Review
Penny is a gem! She's knowledgeable in her space, puts in work to make sure you are getting the absolute best from her and her team, offers suggestions for good-better-best selling points according to the market trends and offers great feedback to help you list your property. Highly recommend!!
12/10/25Ashley Irle
Google Review
Penny was outstanding to work with! As a first time home buyer she guided us through the buying process and ensured we were educated on all fronts before committing to signing. She was kind and knowledgeable and I am so grateful to have worked with her to find our dream home. Thank you so much Penny! ☺️
11/24/25Adelyn Sprecher
Google Review
We absolutely love working with Penny. We’ve sold and purchased multiple homes with her over the years, and every experience has been better than the last. Penny is knowledgeable, patient, and always makes us feel fully supported. She handles every detail with care and communicates clearly through the entire process. We trust her completely and wouldn’t work with anyone else. Highly recommend Penny and her team to anyone looking for a truly exceptional realtor!
11/5/25Thomas koickal
Google Review
We had a wonderful experience with Penny on selling our house. Everything went smoothly and we were happy with the sale.
9/4/25Zan
Google Review
Penny is the best agent you could possibly work with. She was the one who originally found us our condo and, even with so many offers on it, she managed to score it for us. At the time she told us it would be a great investment that would grow in value and she was absolutely right. Fast forward to selling, and thanks to her knowledge of the market and effort, we ended up getting the highest valued sale in the whole complex. We didn’t even bother looking anywhere else for an agent because Penny is all you need. She’s smart, hardworking, and genuinely cares about her clients. Couldn’t recommend her more!
8/20/25Kenny Smith
Google Review
Update - we also bought our next house with Penny, who found a listing with the exact layout we wanted in our target neighborhood!
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Penny helped us sell 10% above list price a few days after listing, selecting from over 20 offers and a half dozen competitive offers. With a unique modern house with various improvements, there weren't many similar homes in our area. We wanted a realtor who could draw buyers and establish the value of the house above the comps, and Penny helped by recommending contractors to fix a couple minor items and get the house looking its best. She also arranged professional photo and video. We had a large crowd for the open house and fully booked showings from when we listed until going contingent. Closing went smoothly.
7/31/25rajshree char
Google Review
Penny was an exceptional realtor who made selling our home a smooth and successful experience. She gave us thoughtful advice on pricing, coordinated beautiful staging, promoted our home through social media, and even organized previews for other agents before the open house. Thanks to her strategy and hard work, we received multiple offers right after the first open house and closed above asking price. Penny also handled negotiations skillfully and was always available—even outside regular business hours. Although we had already moved out of state, she tracked everything for us and kept the process on course. We’re so grateful for her expertise and highly recommend her to anyone looking to sell their home.
7/18/25Ali Asi
Google Review
What do i like about Penny: tells the truth, admits if she doesn’t know something. Always there to take care of things. I can tell Penny cares and does best to underpromise and overdeliver.
this is also a like, and also a dislike: straightforwardness and honesty. Can upset you with truth if not in the right mood.
My home is sold, and she took care of my trash when i was out of state.
7/12/25Stephanie Kyle
Google Review
Five Stars for Penny!
Penny has been a trusted realtor in my family for years, and now I truly understand why! From selling my old home to helping me find the perfect new one, she was with me every step of the way. Her bubbly personality made the entire process feel less stressful and even fun at times.
What really impressed me was how well she communicated—not just with me, but with other realtors. She knew exactly how to advocate for what I needed and kept everything moving smoothly. She helped me narrow down my search quickly and zero in on a home that checked all the boxes.
Penny is knowledgeable, responsive, and genuinely cares about her clients. I felt confident having her on my side, and I wouldn’t hesitate to recommend her to anyone buying or selling a home. She’s truly a gem!
6/24/25Katie Hill
Google Review
We hired Penny in February to sell our home in Naperville. She went above and beyond every step of the way. She helped us get our house ready for listing by sending over a staging company which was so helpful! She also created an amazing marketing video of our home that really highlighted our house and the area. Our house was under contract only a few days after we listed because of her experience and her knowledge of the area. We would definitely recommend Penny for all of your home buying/ selling needs!
6/22/25David DeCarlo
Google Review
We decided to relist our home, Penny took the listing added her professional expertise, and it sold after the 1st open house. For our listing price. Professional, experienced, and knows the market to fit your needs buying or selling.
6/20/25Tim Benecke
Google Review
I do not know where to start. I have bought and sold a half dozen homes, but I have NEVER experienced a real estate agent like Penny O'Brien. She is amazing!! From Day 1, with her initial walkthrough suggestions, she knows what the market wants and guided me through the process. The team she has to support sellers throughout the preparations for sale all the way to closing were professional, timely, and very reasonably priced. The video she produced in advance of the sale whetted the appetites of buyers and their agents even before the first open house. The house sold the first weekend it was shown and at a price well above asking price. Thank you, Penny, for making the selling process painless and quick. You were a blessing to me and my family. God bless you!!
5/3/25Sunny Nanda
Google Review
Great service and great experience!! Appreciate all your support during this process.
5/2/25Sharon M
Google Review
Penny sold our house the first weekend it was listed! She is fair, honest, and knowledgeable. She also works with a great group of people which made our whole experience seamless. We liked that she is local and really understands Naperville. From our first meeting with Penny to having an offer on our house, was just two weeks. We would highly recommend.
4/8/25RBX
Google Review
Penny did an extraordinary job. Her advice and counsel on preparing the house (from what to spend money on to position the house for rapid sale at the optimal ROI - to suggestions on staging the house to showcase its best features) was invaluable. Her connections to all the best local vendors for painting, electric, landscaping, etc, saved us significant time/money because we got the right people on the first shot. And her knowledge of the local real estate market and “feel” for what the optimal price and timing to list the home would be turned out to be “bullseye” perfect. She is a real pro, we were in good hands.
1/27/25Vishnu Jani
Google Review
Penny was wonderful to work with! She provided us with resources to find homes even before they came on the market. Our search for a new home did not take long and we were able to finalize it very quickly from search to closing. Even after that we've bought the house, she continues to be a great resource and provides us with contacts of contractors for all our maintenance needs. Best and very hands on Realtor.
1/24/25Aisha Hassan
Google Review
I have worked with Penny twice. She goes above and beyond to make sure everything goes smoothly. She handled all interactions while we were moving and setting up out of state. She is spectacular and knows her stuff. She was always available to answer questions and she even did some outreach for us in our new state so we could purchase property on arrival. Highly recommend Penny O'Brian!
1/24/25Terri Jones
Google Review
We actually started the process of selling our home 8 months before it was actually listed. Penny came over, walked through our home and offered many helpful suggestions. The minute she left we started on her recommendations. While we had not signed a contract with her yet, she was always available whenever we called with questions.
Fast forward to us listing our home. Our house looked wonderful when we listed it. It was a clean, a well maintained home but Penny's expertise took it to the next level.
By the end of the first weekend it was on the market we had multiple offers all over asking price! It was a team effort however, we could not have done it without Penny's guidance.
Selling a home and moving can be stressful...Penny made it much easier for us! We are very glad we partnered with her to sell our home!
1/23/25mehidi hassan
Google Review
I bought my house through Penny and it was smooth and fast. I also sold the house 7 years later through Penny. Also very smooth and fast. She went above and beyond to help me with all aspects of the sale. Definitely best Realtor I have ever worked with.
1/12/25Laurah Georgi
Google Review
Penny listed our Naperville home on a Thursday and it was sold that weekend. She made the process very clear and took care of all the listing details in a very fast paced market. Penny is a true professional.
12/10/24Beckie Schuerenberg
Google Review
Penny is a true professional who really understands the Chicago area market. This was especially helpful when my family had to sell a home as part of an estate. She was there for us each step of the process of getting the home market ready, advising us on timing and pricing, and walking us through the multiple offers we received the first weekend. She also checked in periodically until closing to make sure there were no problems that could cause a delay. I would recommend Penny to anyone needing a smooth home selling process!
12/10/24Kevin Kinder
Google Review
We highly recommend Penny O'Brien for anyone selling or buying a home. She was very helpful in guiding us through the process and her recommendations ended up being spot-on. We got nine offers in four days and got over our asking price, so we were very happy..
12/9/24Sangeeta Agarwal
Google Review
5 Stars for Penny. Penny helped us sell our home in Naperville. Her determination and confidence and dedication is unmatched. Her marketing, indepth use of technology is particularly efficient. Photos and videos were awesome. We cannot recommend Penny highly enough and we are so grateful to have had Penny on our team!
11/16/24Peter Orji
Google Review
11/9/24Teresa N
Google Review
5 stars- Penny sold our home just one day on the market! We are very happy with the service she provided us. Selling our precious Naperville home of 25 years was a very emotional experience and could have been overwhelming to navigate without the right guidance. We are so grateful to have had Penny on our team!
10/29/24Cheryl Wilczynski
Google Review
10/29/24Kellie Corona
Google Review
We would happily refer Penny O'Brien to anyone selling or looking for a new home. Her determination, confidence and dedication to finding exactly what we were looking for was invaluable in helping us to make informed decisions. She worked to help us understand the purchasing process at every step. Penny was tenacious in negotiating competitive terms that landed us the house of our dreams. We recommend Penny to anyone looking for a trusted partner in navigating the challenging home purchasing market.
10/26/24Mike Wilczynski
Google Review
Selling (or buying) a home is so nerve rattling. We were lucky to have Penny hold our hand through every step. She coached us through the whole process and got us the right price. If you’re near Naperville, I don’t know why you’d consider working with anyone else. Thank you Penny, not only for doing a great job, but for being a trusted friend.
8/1/24Doreen Shepp
Google Review
Pleasure to do business with. Photo's and Video were awesome! The team worked together to sell my house quickly. Would use Penny as my agent in a heartbeat.
6/16/24Jem Scout
Google Review
I knew very little about real estate and had no idea what was involved when it came time to sell our home. Penny's ability to establish rapport and trust with us was excellent. Penny has a lovely, positive, can-do attitude, and listened to my husband and me. She asked intelligent questions. Penny meets her clients where they are. She could not have had better communication skills and was able to navigate each step of the process with each member of the selling, and purchasing team. Her fun personality and her in-depth use of technology made her marketing particularly efficient. Her years of experience, and extensive knowledge of the market, allowed her to price our house expertly, in tune with the market. Much paperwork was involved, and Penny reviewed each document with us until we understood what we were signing. We can not recommend Penny highly enough. We had a wonderful experience
working with her.
6/5/24Ankit Tiwari
Google Review
1/25/24Trisha Ann
Google Review
No one works harder, achieving the best results, negotiating the best price for her clients as a buyer or seller! Penny goes the extra mile on everything, especially on marketing your home as the listing agent! Thank you Penny!
11/10/23Anagha Phadke
Google Review
We recently sold our house with Penny, and it was a fantastic experience! She sold it fast at a great price. The idea to paint the kitchen cabinets paid off big time. Her network of contacts for moving help and junk removal was a lifesaver. Professional, efficient, and highly recommended! Thanks for a smooth process!
10/27/23Krunal Patel
Google Review
We had the pleasure of working with Penny during our home buying journey, and we couldn't be more satisfied with her outstanding services. Penny is not just a real estate agent; she is truly phenomenal. Her in-depth knowledge of the Naperville housing market is impressive and invaluable.
From the very beginning, Penny stood beside us, guiding us with her expertise and unwavering support. At every step of the buying process, she provided us with valuable insights and helped us make the right choices. Her dedication to ensuring that we made informed decisions was remarkable.
Thanks to Penny, our home buying experience was incredibly smooth and commendable. We are grateful for her professionalism, patience, and genuine care. If you're looking for a real estate agent who goes above and beyond, Penny is the one to choose.
Thank you, Penny, for making our dream home a reality. We wholeheartedly recommend her to anyone navigating the Naperville housing market.
9/28/23Bharat Majhi
Google Review
Penny has excellent knowledge of real estate market in Naperville. Pleasant personality and cares very much about customer need.
9/27/23Richard Spurlock
Google Review
Penny was great to work with, she gave us valuable advice on what we needed to do to get our house ready to sell. She has lots of contacts to go to for painting, carpet replacement and handyman repairs. She is a pro and knows what she is doing.
8/15/23Cindi Roberts
Google Review
Penny is super knowledgeable about Naperville, housing trends, proper pricing, and individual subdivisions. She is very responsive, returning calls promptly and making sure you see homes the day they go on or the next day. She will work with your schedule and provide valuable feedback on updates needed to promptly sell your home. We have used her both to sell a home and buy a home, so can recommend her for either need.
8/14/23George Hagerty
Google Review
Penny helped to sell our quickly and significantly over asking price! Her market knowledge, marketing and knowledge of the area helped set her apart from other realtors. If your looking to sell a house in Naperville I highly recommend using Penny!
8/14/23Rashard Johnson
Google Review
Penny is the consummate professional! We had a wonderful experience with her as our listing agent which enabled us to sell faster than the market demanded. She’s definitely a top agent!
7/21/23Rick Case
Google Review
Penny and her team were amazing! We have moved cross country a few times and I can honestly say Penny did not miss a beat! Our selling process from the day we met to the close of sale was totally smooth. I cannot believe how in tune to the market place Penny is. She really knows the market condition and is very professional. I simply cannot say enough about Baird Warner and Penny O’brian team except “Wow”!
Penny got us well over asking price and sold our home essentially with in hours of it hitting the market. When it comes to higher end or mid range homes she is the best. Thank you Penny for all that you did for me and my family.
6/12/23D Laff
Google Review
From start to finish Penny and her team were nothing short of amazing! Penny's knowledge of the market and how to market could not have been more accurate! House went under contract in 3 days. Highly recommend!
6/10/23Tricia Goedert
Google Review
Truly the BEST REALTOR we could ever ask for. Thankful beyond words to have worked along side Penny. Coming from two very very picky first time home buyers in a tough market- she made it easy for us. Not only very knowledgeable and professional, but very flexible and easy to work with. We are so thankful!!! We love Penny and recommend her to everyone!
6/9/23Paul
Google Review
Penny was very knowledgeable on explaining the process of selling. Excellent on virtual staging. Penny showed awesome professionalism. I could not believe how fast my mother's house was sold. Thanks Penny!
5/23/23Kristine & Matt W
Google Review
Penny is one of the best realtors we have had the pleasure of working with - she worked with us as our listing agent. Her professionalism, knowledge of the market, and strategies helped us to sell our home with multiple offers in 48 hours. Penny and her team handled every detail including the staging of our home, beautiful photography/videography for our listing, our open house and handled all of our questions. We appreciate Penny and her team.
5/8/23Carrie LaMar
Google Review
Penny was an amazing listing agent AND selling agent. She is named top realtor for a reason. We viewed our dream home & knew we wanted to make a move, without even having our house ready to sell or on the market. But, she made it happen! She dropped everything that evening to provide feedback on what we needed to do to get our current home on the market ASAP. She is professional & knows the market - once we listed our house, we sold very quickly and then put an offer on our dream home, which was accepted - it worked out perfectly. She is fantastic at her job and continuing to support her clients beyond the sale!
4/3/23Pri
Google Review
Very Professional. She sold my home in 2 days.
3/1/23Jan Mueller
Google Review
12/1/22Swapnali Patil
Google Review
Penny was both my listing and buying agent. She is professional,
knowledgeable, and was able to sell my home for full list price in three days!
She is a joy to work with, and I cannot
recommend her highly enough. Choose Penny and you will not regret it!
11/29/22Joe Aprile
Google Review
Penny was fantastic. She understands the market and will get you the best deal you could possibly get. We would use her again in a heartbeat.
11/29/22Karen Stokes
Google Review
11/29/22Sherry Sabic
Google Review
Penny was knowledgeable and reliable, we would highly recommend Penny if you are looking to buy or sell.
11/11/22Richard Michalik
Google Review
Penny did a fantastic job marketing and ultimately selling our home in Naperville. Her great work allowed us to accept a solid offer in the first few days after listing!
11/7/22Brad Hampton
Google Review
Penny was fantastic throughout the the entire selling process. She has a real sense of urgency, high level of professionalism, and knows the market better than anyone. With Penny you can be confident that she will do everything to get you top dollar. We had an incredible experience from start to finish and couldn't imagine ever working with anyone else.
11/7/22Sagar Islam
Google Review
Penny is awesome! She’s an expert on the Naperville market and thanks to her knowledge, expertise and guidance, we were able to find a home we love, the very first weekend Penny took us house hunting! We particularly loved her candid feedback on the homes we saw and she makes great suggestions on ways to make the home more modern without breaking your budget! Penny is awesome! She really knows her stuff and knows how to guide her clients so they can find their perfect home!
10/16/22Heather
Google Review
If you are getting ready to sell your home, call Penny. She is very responsive, warm, funny, professional, and seriously knows her stuff. Her marketing is sharp and effective; she also works with a home stager and photographer who are both amazing. We had multiple offers over list price for our home so quickly that we didn't need to hold an open house. Penny, thank you again - we really enjoyed working with you!
10/5/22Kim McCline
Google Review
Penny delivered and executed what she said she would do. She made the process easy for us and was available when we needed her. Thank you Penny!
9/20/22Amanda Murphy
Google Review
Penny was very knowledgeable during the purchase of our new home. She guided us during the height of the market to make sure we were able to view enough homes and ultimately help us decide what was important to us in a new home.
9/12/22Nancy Chagares
Google Review
Penny was an outstanding realtor for us. She did everything she said she would do and more. She is professional, understanding and truly an expert! She helped us determine what we needed to do to our home to sell it and was able to work around our constraints. We listed our home on a Friday, had an open house on Saturday and Sunday and received several offers by Sunday night. Sold our home in 3 days! We couldn't be happier and highly recommend Penny whether you are buying or selling a home.
9/6/22Abraham Joseph
Google Review
Penny is very smart and know exactly what customer wants and how to improve. She is very knowledgeable and knows the pulse of the market
9/1/22Julie Kolanowski
Google Review
Penny was top notch in every step of our listing process!! Highly recommended!!
8/12/22Bobbie Roth
Google Review
Penny was great throughout our house selling experience. Both she and her support team were professional and timely in our interactions. Her advice and hard work helped us sell our house in one weekend! This was exceptional and greatly reduced our selling experience stress. We highly recommend her if you are looking for a knowledgeable agent that will help you get top dollar for your home.
8/11/22Brandon Holder
Google Review
Penny took great care of us from start to finish as we navigated the turbulent waters of this summer’s housing market. She gave us excellent personal attention and helped us find a home my wife and I are really happy with. Give her a try if you’re looking to buy a home—you won’t regret it.
8/10/22Lindy Taggart Kleivo
Google Review
As the publisher of a local area community living magazine, I have been working with Penny O'Brien for many years and it has been a wonderful experience! Many of our readers have gotten to know Penny through our pages and have utilized her real estate services along the way, sharing with us how professional she has been to work with. Penny is one of the most passionate realtors I know, always putting her customers first! She is reliable, genuine and exceptional at what she does. It has been an absolute pleasure watching her grow her business through the years and I look forward to all that's ahead for The Penny O'Brien Group.