|This article needs additional citations for verification. (December 2015) (Learn how and when to remove this template message)|
The estate was sold in 1826 and from 1850 was leased by George Frederic Muntz, Member of Parliament for Birmingham. After his death in 1857 his son George Frederick bought the estate and much enlarged and improved the Hall. During this time Muntz junior had a church built on the estate, Umberslade Baptist Church, which exists to this day separately to the Hall. In 1881 the household comprised thirty including thirteen resident servants. Frederick Ernest Muntz who succeeded to the estate in 1898 served as High Sheriff of Warwickshire in 1902 and as Deputy Lieutenant. The estate, much reduced, remains in the ownership of the Muntz family.
From the 1960s the Hall was leased out to commercial tenants, including from 1967 BSA Motorcycles – Triumph Motorcycles, to merge their various design and development departments at a central point, roughly equi-distant from their manufacturing bases at Meriden, Redditch and Small Heath. Previously, the site had been similarly-used by an industrial manufacturer of car components, Wilmot Breedon.
- "Name: UMBERSLADE HALL List entry Number: 1382396". English Heritage. Retrieved 25 September 2014.
- Motor Cycle, 29 June 1967. p.902. BSA Country Estate Accessed 2015-12-07