Kathy DeMello REALTORĀ®

Portrait photo of Kathy DeMello

Londonderry, NH

1 Verani Way
Londonderry, NH 03053

Office: 603-845-2500
Direct: 603-233-3673


Born in Chicago, Illinois, Kathleen is a graduate of Harrington Institute of Interior Design. After marrying her New England-native husband Bob DeMello, she moved to the Boston area where she established herself and began building her career in space planning, design, project and facilities management, and international corporate real estate for Wang Laboratories, John Hancock Mutual Life Insurance Co., Gillette, and Sun Micro Systems. She served as president of the Boston Chapter of the International Facilities Management Assoc.

In 2004 when Kathleen joined Keller Williams Realty in Nashua, NH she was not new to the real estate world. Before obtaining her license and focusing on commercial and residential real estate sales, she had spent her career acquiring a variety of experience in commercial real estate. Today, she is a proud member of Berkshire Hathaway HomeServices Verani Realty, where she belongs to the BHHS National Honor Society, servicing both commercial and residential needs. Kathy was the 2017 President of the Commercial Investors Board of REALTOR®s for the State of New Hampshire, 2017 President of the New England Commercial Property Exchange, an executive board member of the New Hampshire Association of REALTOR®s as Director of Professional Development and the Womens’ Resource Council as Director of Programs.

While she has a diverse background in real estate, currently Kathleen’s main focus is on office and industrial space as well as multi-family properties. Bringing together investor, property and tenant for an ideal partnership is just one example of how she works for her clients. She was able to do just this for a charter school in Nashua, making it one of her most memorable negotiations to date.

Service Areas

Amherst, NH, Derry, NH, Nashua, NH, Hollis, NH, Brookline, NH, Londonderry, NH, Manchester, NH, Bedford, NH, Merrimack, NH, Hudson, NH

Ask Kathy DeMello


Kathy was amazing to work with and totally committed to getting everything right for us. Could not have made it through this process without her!

- Elizabeth R


- Richard K

Kathy is simply the best!

- Taryn J

As first time home buyers, Kathy made the entire process easy for us from start to finish! She always had our best interests in mind and we couldn't be happier with our new home.

- Renee V

Kathy was my neighbor for several years. Our daughters grew up together. Kathy is such a beautiful person, inside and out. She is a true professional. Not knowing anything about the process on selling our house, her guidance from getting the house ready to put on the market to the day we sold the house, was above our expectations. We have and will continue recommending Kathy to whoever asks. The Constantelo family would like to thank Kathy for guiding us in the sale house and starting our final journey of Happy Retirement. Thank you Kathy and we love you very much!

- Niki C

We have known Kathy for many years since she was our neighbor

- John C

'You made it all so easy :-) You are good at what you do. God has given you a gift and your compassion for people is beyond what others would do.'

- FM

'Thank you for all your help. Being first time home buyers, we had no idea how the process worked. You were amazing. We love our new home and can't wait to put our personalities into it. Thank you, again.'

- RD

'I can't thank you enough for your patience in helping me find the perfect home for my family, in the perfect neighborhood!'

- NB

Property Specialties