From Humble Beginnings

In 1946, we started this family owned business with the idea of making home ownership a reality in Gridley & the surrounding communities. With our founder Everett Hamman running the show we became well known in the real estate industry for helping the hard working families fulfill their dream of real home ownership or counseling them on creative real estate transactions.

Black & white photo of the Hamman Grandparents standing outside of their first real estate property, buildings leading toward a city skyline

“Morals, Ethics & Hard Work are everything to us!!!”

Founder Everett Hamman

Hamman Real Estate outside building in 2018

…To Where We Are Today

Over the years, our company has greatly evolved into a much larger enterprise with extensive knowledge in various aspects including Agricultural, Industrial, Commercial, Residential, Income, and Development helping clients all throughout the United States of America. Anywhere from simply helping you buy your first home, to negotiating complicated transactions for investors needing counseling on wealth management of their valuable assets.

Our Future

​Hamman Real Estate is on the cutting edge of real estate technology with a database full of information that we have compiled over the years which gives us the ability to quickly research property in great detail. We are paving the way for the future by making today’s goals achievable. With the knowledge of property investment on our side let us help you start your next life chapter by making your dreams a reality.

Our Team

The Hamman Real Estate team standing together and smiling in a room
Howard smiling wearing a red tie, white dress shirt, and grey v-neck sweater

Howard Hamman


  • 44 years of experience in sales of Ag Land, Hunting Clubs, Commercial and Residential properties.
  • Expert in 1031 Tax-Free Exchanges both locally and across the nation.
  • 36-year member and Past President of Rotary Club of Gridley.
  • Founding Board Member of Gridley Museum.
  • 23-year appointed member and past President of Butte County Fish and Game Commission.
  • Selected Gridley Man of the Year 2001.
  • Life Member of Ducks Unlimited, California Waterfowl and Safari Club International.
  • Trusted by many from a long history of relationships in the community.
(530) 846-2567 ext 4
DRE# 00571543
Kory smiling wearing a red patterned tie and a blue dress shirt

Kory Hamman


  • Considered by his peers as an expert in counseling clients when dealing with extremely complex real estate transactions that exceed clients’ expectations.
  • Bachelor of Science Degree with the School of Business at the University of the Pacific with a concentration in Real Estate Finance & Land Development.
  • Past President of the Sutter/Yuba/Butte Association of Realtors which had over 1,200 members.
  • Awarded “Broker Of The Year” by his peers within Sutter/Yuba/Butte Realtor Association.
  • Over 1/2 Billion Dollars in Sales with an extensive list of contacts & buyers.
  • Expert with 1031 exchanges in dealing with Industrial, Commercial, Agricultural, Residential Subdivision Development and NNN Leased Property.
  • Highly successful Wildlife Conservation Easement Land Broker with a deep understanding of the legal, financial, and tax aspects in helping navigate within a wide range of stakeholders including Governmental, Private, and Non-profit entities. Possesses in-depth knowledge of the regulatory and legal framework surrounding these transactions having developed relationships with key partners in the industry.
  • Past CEO of International Corporation driving manufacturing capacity by 10,000% as well as quickly growing retail store distribution count from 120 to over 14,000 stores nationwide including Walmart, Walgreens, Target, Costco, Safeway, etc.

“As a trusted advisor to clients who are Billionaires and seek my guidance on a range of real estate matters. Let me help you increase your net just like I do for them.”

(530) 846-2567 ext 2
(530) 228-1940 Cell
DRE# 01158025
Larry smiling wearing a red and gold patterned tie with a dark blue dress shirt

Larry Hamman

Sales Agent

  • 35 years on the Biggs-Gridley Cemetery board; Previous Chairman.
  • 30 years on the Housing Authority board; Previous Chairman & Co-chairman of the board 4 times, retiring December of 2022.
  • Past President of Gridley Exchange Club & 20-80 Club.
  • 17 years on the Gridley Volunteer Fire Department, serving as Captain for the last several years.
  • Mule Deer Foundation, California Deer & Safari Club Committee member.
  • Farmed Rice until 1990. Started his career in Real Estate in 1990 specializing in Farm & Ag sales.
(530) 846-2567 ext 5
(530) 521-2600 Cell
DRE# 01114484
Joann smiling wearing glasses, earings, and a purple cowell neck sweater

Joann Hamman

Sales Agent

  • Earned her Real Estate license and joined the family business in December 2016 after teaching at Gridley Unified for 25+ years.
  • GUHS Alum, earned AA Degree Butte College as the 1st class to graduate from Butte.
  • BA Degree in Psychology from Chico State.
  • Active Member of: Quota Club of Gridley, American Association of University Women (AAUW), Women of the Moose (WOTM), and Gridley Museum Board.
  • Specializing in residential homes and recreational properties including Bucks Lake.
(530) 846-2567 ext 6
(530) 864-5337 Cell
DRE# 02026040
CC smilng wearing a navy and grey striped blouse

Cynthia Cummins


  • The newest agent added to the family business, earning her Real Estate license in July of 2021.
  • GUHS alumni, class of 1993.
  • Part-time Registered Dental Assistant for over 23 years.
  • Sutter resident for over 20 years while being very active in Sutter area sports.
  • Specializing in residential in all surrounding areas including Biggs, Gridley, Live Oak, Yuba City, and Sutter.

(530) 870-6374
DRE# 02149884

Florence smilng wearing a black sweater and white blouse with a necklace

Florence Hamman

Office Manager

  • “The one that keeps it all together!!!”

(530) 846-2567 ext 3