Plan to convert Cumberland House in Redbourn denied

An application, submitted on behalf of the owners of Cumberland House, earmarked the Grade II Listed building for a total of 10 residences.

The proposals consisted of internal alterations to the existing building to be sub-divided in a "sympathetic manner", creating nine further homes.

Six two-bedroom flats would have been built, alongside a two-bedroom house, pair of three-bedroom houses and a singular one-bedroom flat.

The applicant believed there had been a "positive and productive pre-application process" and the redevelopment at Cumberland house made use of an "under-utilised" building while providing "much-needed homes".

Proposed ground floor plan for Cumberland House. (Image: Seabrook Architects)

"Although the development proposals for Cumberland House itself would inevitably have some negative impacts inasmuch as some historic building fabric would be lost and the flow of the building would be compromised, the proposed layout has been designed to maintain the integrity and as much of the architectural detailing of the historic rooms as possible," a statement in the application's heritage statement read.

In a decision notice St Albans City and District Council was not as convinced, listing numerous qualms with the application.

The body believed plans provided "insufficient information" regarding the water supply, drainage and electrical installations for each residential unit.

Also highlighted was the partial loss of the "historic courtyard wall" to provide further parking which was deemed "detrimental" to the historical significance of the site.

Further issues included a lack of suitable access for emergency services, refuse problems and harm to protected trees within Redbourn Conservation Area.

During a meeting of Redbourn Parish Council, the committee expressed its support for the overall redevelopment but objected to the number of parking spaces - nine.

Cumberland House in Redbourn. (Image: Google Street View)

Cumberland House was built by and named after Prince William Augustus during 1745 - he is the third and youngest son of George II of Great Britain and Caroline of Ansbach, and was Duke of Cumberland from 1726.

The building was later extended and converted to residential use before becoming the regional headquarters for the National Grid. Since 2012 the home has been a private dwelling, with the gardens of the property open to the public.

Just four objections were received during a consultation period - to view the full plans search 24/04/2025 at St Albans City and District Council's planning portal.