Terrie O'Connor Realtors - Allendale

75 W. Allendale Ave. Allendale, NJ 07401
  •   5   (19 reviews)

Meet the team

Get to know the 7 agents at Terrie O'Connor Realtors - Allendale.

Sarah Marie Drennan
Sarah Marie Drennan

Broker Associate / President

  5   (12 reviews)
About Sarah
As President of Terrie O’Connor Realtors, Sarah M. Drennan wears many hats—strategist, motivator, coach, occasional magician—and oversees the operations and growth of nine thriving offices and more than 450 sales associates. A licensed Real Estate Broker with a background in public relations and a knack for making things happen, Sarah leads with equal parts vision, drive, and good humor. Before taking the helm, Sarah served as Executive Vice President and previously managed the Allendale office, where she was known for turning potential into performance and coffee into closed deals. Her earlier career included roles as an International Resource Manager at one of the world’s largest PR firms and as a founding partner and VP of Operations at a public relations trade association—where she learned how to diplomatically herd very ambitious cats. Her transition into real estate was as seamless as her negotiation skills, blending experience in marketing, sales, and customer service into a leadership style that’s sharp, supportive, and just unconventional enough to get results. Sarah currently serves on the Board of Directors for the New Jersey Multiple Listing Service and has held multiple committee positions with Greater Bergen Realtors, proving that she doesn't just talk about raising industry standards—she shows up and does the work. Outside the office, Sarah gives back as a board member of The Grace Foundation of Terrie O’Connor Realtors and supports organizations like Covenant House of New Jersey. She’s also a twice-elected Councilwoman for the Borough of Upper Saddle River—because apparently running a company and raising three kids wasn’t quite enough.
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About Catherine
Katy O'Connor Smiechowski became a licensed Realtor® in 1991 and has been actively involved in the growth of Terrie O'Connor Realtors (TOCR) since its inception. In her role, Katy oversees TOCR Professional Development and the Terrie O'Connor Realtors Real Estate School, which she and her team successfully opened in 2012. She works as a full time Real Estate Broker Salesperson, has managed multiple TOCR sales offices over the years and is an integral part of the company leadership team. Due to her dedication and top achievements in real estate, Katy has been awarded both Circle of Excellence & Million Dollar Club recognition numerous times through the years, and has been named one of Bergen County's Top Real Estate Agents in 2020 and 2021 by Bergen Magazine. Katy earned a Masters Degree from Columbia University Teachers College in Curriculum & Development and a B.A., from Rutgers College in both Elementary Education and Psychology. Katy was awarded the New Jersey Sally Mae First Class Teacher Award while she worked as an elementary school teacher in the Upper Saddle River public schools for seven years, where she taught kindergarten, third and fourth grade. Additionally, Katy has served the community in many capacities through the years, including: President and Trustee of the Upper Saddle River Board of Education; Board Member for Archer Cooperative Nursery School in Allendale; numerous community volunteer positions through the Upper Saddle River Recreation Commission, USR Public Schools, Northern Highlands Regional High School and St. Joseph’s Regional High School. She currently serves on the Northern Highlands Sports Association, the Greater Bergen Association of Realtors Grievance Committee and is a Trustee for The Grace Foundation.
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About Edward Scott
As a lifelong Bergen County resident, Scott has deep ties to the local community. Scott has enjoyed seeing his community grow and develop and has a great deal of knowledge about the ever-changing area, including businesses, schools and amenities. He truly cares about where he lives and works, generously donating hours of his personal time to many local organizations. He is an active member of the Allendale Saddle River Rotary, where he currently serves as treasurer, and is Vice President of the Allendale Chamber of Commerce. As a member of the Allendale Holiday Observers, of which he is a past president, Scott helps maintain Allendale's charming small-town feel. in 2021, he received the Mahwah Regional Chamber of Commerce Citizen of the year award Prior to entering real estate, Scott had a successful career on Wall Street and as an accounting and operations consultant. His financial background is essential in determining value and negotiating price and terms on behalf of his clients. Scott looks forward to sharing his knowledge of Allendale and the surrounding towns with his new clients at Terrie O’Connor Realtors, Allendale. He can be reached at (201) 825-0500, on his cell at 201-960-3240 or via email at smiller@tocr.com.
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John Westrich
John Westrich

REALTOR®

  5   (1 review)
About John
John's customers rave about his responsiveness and his real attention to detail. Most of all he is more of a trusted advisor/consultant that focuses on customers needs and wants. Having spent his career deploying customer service teams and processes, John is intimately knowledgeable on how to deliver some amazing customer experiences. One of the top ranked agents on Zillow, John encourages you to check out his reviews. Customers routinely ask John for assistance with Schools, Transportation, Commuting Options, Restaurants, Parks, Shopping you name it. John having lived his entire life in New Jersey, has a solid command of the area. Plus, he knows a thing or two on where to go for the best pizza. John is an absolute road warrior and while his office seat is in Wyckoff, he is hardly there. You can best reach him on his cell at 862-432-9555 or shoot him an email at jwestrich@tocr.com.
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David Puleo
David Puleo

REALTOR®

About David
David Puleo is a licensed Real Estate Broker who has owned and operated a Real Estate Brokerage for over 30 years. David has extensive experience in corporate and residential real estate, including industrial, multi-family, and retail property having sold more than $300 million in condominiums, land, and commercial properties during his career. David is a zoning and land use expert having served as a qualifying Land Use expert before the Superior Court of New Jersey. In addition to real estate, David has a background in the construction industry having owned and operated Puleo Construction, LLC specializing in high-end single-family renovations and new construction in Bergen County. David can be reached on his cell at 201-966-8384. You can also email him at dtpuleo@tocr.com.
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About Deirdre
Deirdre "DeeDee" Butwin is a lifelong resident of Bergen County. She was raised in Paramus and has lived in Allendale with her family for the past 27 years. Her children have all attended the Allendale school system. For as long as DeeDee can remember, she has always had an interest in real estate. Prior to raising her children, DeeDee worked in commercial real estate and leasing. Deirdre Butwin enjoys being a part of the Terrie O’Connor Realtors team where she consistently provides her clients with the best service and personal attention in a professional atmosphere. Whether buying or selling, DeeDee Butwin enjoys sharing her knowledge of Allendale and the Bergen County area with each of her clients. DeeDee can be reached at the Terrie O’Connor Realtors, Allendale office at (201) 825-0500 or on her cell phone at (201) 739-4616. She can also be reached by email at dbutwin@tocr.com.
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About us

Terrie O’Connor Realtors is a leading independent real estate brokerage with eight real estate offices conveniently located throughout northern New Jersey in Allendale, Hasbrouck Heights, Kinnelon, Ramsey, Ridgewood, Saddle River, and Wyckoff. Terrie O’Connor Realtors provides exceptional real estate services throughout Bergen County and surrounding Passaic, Morris, Sussex, Hudson and Essex counties. The Terrie O’Connor Realtors New York Group serves southern New York counties of Orange and Rockland. Terrie is joined by an impressive real estate broker management team, an experienced staff and an ever growing roster of approximately 475 talented and enthusiastic Realtor professionals. By providing local knowledge, professional expertise and honest assessments, Terrie O’Connor Realtors guides you confidently through the real estate process. Sellers receive pre-marketing consultations, a complimentary Comparative Market Analysis (CMA) and Terrie O’Connor Realtors’ personalized Signature Marketing Plan. For buyers, we are committed to making your homebuying dreams a reality by analyzing marketing conditions, arranging financing support, providing consistent feedback on changes in inventory and negotiating offers. When you work with Terrie O’Connor Realtors, you can be assured of personalized service and a trusted advice from start to closing…and beyond. We are here to build a life long relationship with your family. We are more than real estate brokers…we are friends you can trust. Start a lasting relationship with Terrie O’Connor Realtors, a brokerage that sets the standard for excellence in the real estate industry.

Our reviews

  5  
19 reviewsacross 13 different locations, showing 6.
Our qualities as told by our client reviews: strategic, responsive, patient, attentive, clear communication, well-prepared, local expert.
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Buyer review
Forever home finder
3 days ago
Forever home finder

Catherine is one of the most patient and knowledgeable agent/broker we have ever worked with. If you’re looking for a house in northern highlands, look no further than her.

Catherine O'Connor Smiechowski

Catherine O'Connor Smiechowski

  5   (3 reviews)
Seller review
Excellent communication a true professional and expert in the business
21 days ago
Excellent communication a true professional and expert in the business

Terri O’Conner realtor is so fortunate to have an energetic, patient and professional leader. Sarah is truly best in class and I would recommend her to any future clients. Great work Thank you Sarah Jim

Sarah Marie Drennan

Sarah Marie Drennan

  5   (12 reviews)
Buyer review
Excellent Communicator with Tremendous Knowledge & Guidance of the Home Buying Process
27 days ago
Excellent Communicator with Tremendous Knowledge & Guidance of the Home Buying Process

Katy was an absolute delight to work with! Her knowledge of every facet of the home buying process made our experience seamless. She handles things with such grace and provides thorough insight into every step of the process. We relied greatly on her expertise to help guide us every step of the way. We would recommend Katy for anyone looking to buy or sell their home.

Catherine O'Connor Smiechowski

Catherine O'Connor Smiechowski

  5   (3 reviews)
Seller review
Knowledgeable, Responsive, and Great to Work With
about 1 month ago
Knowledgeable, Responsive, and Great to Work With

Working with John was an outstanding experience from start to finish. He made the entire process feel organized, smooth, and well-managed every step of the way. He consistently went the extra mile, was always available when needed, and showed up whenever something had to get done. His market knowledge and insight were incredibly valuable, and it was clear he knew exactly how to position the home and navigate the market effectively. What stood out most was his professionalism, communication, and attention to detail throughout the entire process. I always felt informed and confident knowing everything was being handled properly. I would absolutely recommend him to anyone looking to buy or sell a home.

John Westrich

John Westrich

  5   (1 review)
Seller review
Exceptional Guidance - The Realtor you want in your corner!
about 1 month ago
Exceptional Guidance - The Realtor you want in your corner!

Selling our family home after the loss of our parents was an emotional and complicated process, and we could not have asked for a better realtor than Sarah Drennan. From our very first meeting with Sarah at the house, it was immediately clear she was exceptionally knowledgeable, experienced, and capable, as well as compassionate. Sarah guided my brothers and me through every step of the process. She recommended outstanding estate sale companies as well as a highly skilled moving company experienced in handling fragile antiques and sentimental items with care. Her strategic advice regarding pricing and evaluating offers was invaluable and gave us tremendous confidence throughout the sale. What truly set Sarah apart was the amount of work she handled behind the scenes. When she realized I was overwhelmed with other responsibilities, she stepped in and personally handled obtaining the Certificate of Occupancy and Fire Inspection on my behalf. She consistently kept everything moving forward and worked tirelessly to help resolve title issues that unexpectedly delayed the closing indefinitely. Sarah communicated directly and proactively with the buyer’s agent and our attorney, Chris, whom she had recommended, and in doing so kept me informed in a way that facilitated and expedited resolution of the issues that had arisen. In an especially impressive effort, she even contacted another title company she and Chris had previously worked with to learn how they would approach the issue we encountered. That insight ultimately became the key to resolving the problem and getting us to closing. Sarah went far above and beyond what anyone could reasonably expect from a realtor. Her professionalism, dedication, resourcefulness, and compassion made an incredibly difficult process manageable. I recommend her without hesitation.

Sarah Marie Drennan

Sarah Marie Drennan

  5   (12 reviews)
Buyer review
Thorough, professional, creative, and kind
3 months ago
Thorough, professional, creative, and kind

Katy O’Connor Smiechowski is an outstanding real estate agent who truly puts her clients first. She’s incredibly thoughtful, detail-oriented, and pragmatic in her advice — always focused on what’s best for you rather than just making a sale. Katy’s calm, caring nature makes the process feel easy and genuinely personal. Her professionalism and genuine connections shine through every step. I can’t recommend her highly enough for anyone seeking a trusted, attentive, and refreshingly results oriented partner in buying or selling a home.

Catherine O'Connor Smiechowski

Catherine O'Connor Smiechowski

  5   (3 reviews)
Show all 19 reviews
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Our properties

Terrie O'Connor Realtors - Allendale has 3 properties for sale and sold 9 properties in the last 12 months, showing 4, sorted by most recent activity

SoldJun 30, 2026
$1,725,000
17 Grandview Avenue
Upper Saddle River NJ 07458
6
6
2
Single-Family
Listing courtesy of Terrie O'Connor Realtors - Allendale and Christie's International Real Estate Group-Franklin Lakes
SoldJun 25, 2026
$1,687,500
10 Knollwood Road
Upper Saddle River NJ 07458
4
3
3
Single-Family
Listing courtesy of Terrie O'Connor Realtors - Allendale and United Real Estate
For Sale
$1,145,000
73 Heritage Drive
Passaic County NJ 07480
5
5
3
Single-Family
Listing courtesy of Terrie O'Connor Realtors - Allendale
SoldJun 18, 2026
$1,500,000
10 Mallard Run
Upper Saddle River NJ 07458
5
5
3
Single-Family
Listing courtesy of Terrie O'Connor Realtors - Allendale
Show all 12 properties
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