Kathe Barge

Kathe Barge

Associate Broker / REALTOR® at Piatt Sotheby's International Realty
PA Associate Broker: AB065129
  •   5   (45 reviews)

About Kathe

Kathe Barge is an Associate Broker with Piatt Sotheby’s International Realty and a highly respected real estate advisor serving Sewickley and the greater Pittsburgh region. A Realtor for over 25 years, she holds a JD from Duke University School of Law and experience practicing tax law with Covington & Burling in Washington, D.C., giving her clients the advantage of exceptional analytical, negotiation, and communication skills. Kathe provides clear, strategic guidance grounded in deep market knowledge. Known for her integrity, discretion, and meticulous attention to detail, she helps Buyers make confident, well-informed decisions and supports Sellers in achieving the strongest results in today’s dynamic market. Her client-centered approach and consistent results have built a loyal, referral-based business. In addition to being an Associate Broker, she is also a Certified Negotiation Expert (CNE), Accredited Buyer’s Representative (ABR®), Certified Seniors Real Estate Specialist (SRES®) and a Certified Relocation Specialist (CRS). In her spare time, Kathe can be found renovating her 95-year-old Gothic Tudor home in the Sewickley Village, traveling, reading, staying fit with yoga and pilates and spending time in Chautauqua, New York with her husband and their three adult children.

Kathe's reviews

  5  
Kathe has 45 reviewsacross 10 different locations, showing 6.
Review Kathe
3 months ago
Professional Presence Paired with Powerful Advocacy

Kathe has a refined professional presence that sets her apart from other real estate agents. Her extensive experience in the Greater Pittsburgh market, not just in Sewickley where her office is located, was apparent in all phases of our buying process. Her detailed knowledge of construction, renovation, and remodeling coupled with her creativity were of particular value to us as we evaluated potential properties. Kathe was a practicing attorney for a number of years, which also sets her apart from other agents. Her legal and market experience contributed to our understanding of various legal documents (particularly the sale/purchase contract) and to managing the successful conclusion to a challenging purchase negotiation.

3 months ago
Real Estate Advice You Can Trust in Sewickley

Kathe did a terrific job of finding our ideal home in Sewickley village... on the ideal *street* in fact, identifying an off-market listing that met our specifications perfectly. My favorite part of working with Kathe was listening to her mercilessly destroy the homes we visited that we absolutely should not have been considering. It helps a lot to work with someone who is obviously not pushing marginal homes on their client just to close a transaction. I highly recommend Kathe for anybody looking in the Sewickley area.

3 months ago
Clarity, Confidence, and Expertise in Every Decision

Sincerely excited to leave this review: We cannot recommend Kathe highly enough. She guided us through touring multiple homes on the market and, when we realized they didn’t fully align with our needs, she seamlessly transitioned into being an exceptional advisor and advocate throughout our new construction journey. Kathe brings an impressive depth of expertise in market trends, identifying true value in construction, and planning thoughtful, high-quality floor plans that translate into wise long-term investments. She is warm, responsive, and incredibly sharp—always articulate and on point when representing her clients’ best interests. What truly sets Kathe apart is her ability to transform what can be a stressful and overwhelming process into one that feels clear, confident, and genuinely hopeful. Her transparency, honesty, wisdom, and authenticity have allowed us to trust our decisions and truly enjoy every stage of our home-building experience. We look forward to continuing our positive and collaborative relationship with Kathe for years to come and are grateful to have her on our team.

4 months ago
A Seamless First Home Buying Experience in Pittsburgh

Kathe was an exceptional realtor from start to finish during our first home purchase. She was always timely and responsive to our questions and concerns, especially when unexpected surprises arose. Her years of experience and depth of knowledge were evident throughout the entire process. Kathe consistently kept us well informed, clearly explaining each step and ensuring we felt confident in every decision. She always put our best interests first and demonstrated outstanding problem-solving skills, navigating challenges smoothly and efficiently. We couldn’t have asked for a better guide through such an important milestone and we appreciate all that Kathe has done.

5 months ago
Five Transactions Later, Kathe Still Delivers the Best Results in Sewickley

Working with Kathe Barge is always an exceptional experience, and selling my recent home in Sewickley was no exception. Kathe once again exceeded every expectation — she sold my home in just a few days and over asking price. Her expertise in the Sewickley market is unmatched, and it shows in the results she consistently delivers. This is the fifth time I’ve partnered with Kathe, and each time I’m reminded why I continue to trust her with my real estate needs. She is professional, responsive, thoughtful, and truly understands how to position a home for success. Her guidance throughout the process is invaluable, and she always makes what could be a stressful experience smooth and straightforward. I would highly recommend Kathe to anyone looking to buy or sell a home in Sewickley, PA. She is the best of the best.

5 months ago
Kathe Found Us the Perfect Home!

Kathe was extremely knowlegeable about the houses in the area and so responsive to us. We honestly would not be in this wonderful house without her!

Show all 45 reviews

Kathe's properties

Kathe has sold 15 properties in the last 12 months, showing 4, sorted by most recent activity

SoldJan 8, 2026
$255,000
154 North Jamestown Road
Carnot-Moon PA 15108
3
3
2
Single-Family
Listing courtesy of Coldwell Banker Realty and Piatt Sotheby's International Realty
SoldDec 1, 2025
$914,997
330 Frederick Ave
Sewickley PA 15143
5
4
2
Single-Family
Listing courtesy of Piatt Sotheby's International Realty
SoldNov 24, 2025
$854,000
405 Morewood Avenue
Pittsburgh PA 15213
5
4
2
Single-Family
Listing courtesy of PIATT SOTHEBY'S INTERNATIONAL REALTY and COMPASS PENNSYLVANIA, LLC
SoldNov 14, 2025
$927,500
587 Moorhead Place
Pittsburgh PA 15232
6
4
2
Single-Family
Listing courtesy of Re/Max Select Realty and PIATT SOTHEBY'S INTERNATIONAL REALTY
Show all 15 properties
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