The Yattendon Estate is the amalgamation of several smaller estates acquired by the first Lord Iliffe between 1925 and 1940. In 1955, Yattendon Estate was formed to hold the land and run the in-hand farms. Yattendon Farms was amalgamated with the Estates company in 1975 and on 1st January 2003, the entire business became a wholly-owned subsidiary of Yattendon Investment Trust.

Today, it represents a total of nearly 3,629 hectares divided between in-hand farms, let farms, woodlands, Christmas tree areas, let small holdings and grazings.

The company owns many properties available to let including houses and commercial buildings including a butcher, garage, pub/hotel, general stores, hairdresser, blacksmith and brewery. The majority of these are located in Yattendon. There are 52 miles of footpaths, bridleways and byways open to the public.

The arable, grass leys and contract farm amounts to 1,799 hectares. The crops grown are wheat, barley, oil seed rape, maize and poppies. The land is also used to keep 550 dairy cattle and 24 British White cattle.

Frilsham Home Farm dairy is a world class 550 cow unit meeting the highest hygiene and welfare standards for both animals and staff.

The building was completed in autumn 2002. The cows are Friesian Holsteins which can be seen grazing on the grass around the village of Yattendon and Frilsham.