Workshop and site redevelopment at Holland and Holland Shooting School & Ashby Farm Ducks, Northwood

Summary of planning committee decision

Decided by Hillingdon Planning Committee on 15 Sept 2026.

16568/APP/2026/703Approved

What was proposed

The application proposed replacing most site buildings with a workshop, while retaining the central timber-framed barn and adding parking, landscaping, drainage and biodiversity measures.

“Planning permission is sought for the comprehensive redevelopment of the Ashby Farm site to provide a new workshop facility for use by Holland & Holland. The proposal comprises the demolition of all existing buildings within the site, with the exception of the centrally located timber-framed barn, which would be retained and incorporated into the development.”

“The development would involve the change of use of part of the site from its existing lawful general storage and private equestrian uses to a workshop use falling within Use Class E(g)(iii). The proposal would deliver a new workshop building arranged around the retained barn, together with associated parking, servicing areas, hard and soft landscaping, sustainable drainage infrastructure and biodiversity enhancements.”

Officer report

The site and its setting

The site formed part of a wider shooting ground estate in the Green Belt, with existing buildings, hardstanding, storage and private equestrian use.

“The application site comprises Ashby Farm, which forms part of the wider Holland & Holland Shooting Ground estate, located on the western side of Ducks Hill Road, Northwood. The site lies within the Metropolitan Green Belt and is situated opposite the Ruislip Woods National Nature Reserve, which is designated as a Site of Metropolitan Importance for Nature Conservation.”

“The wider Holland & Holland estate extends to 40 hectares and includes the main shooting ground facilities, comprising reception and function buildings, an underground shooting range, workshops and storage buildings. The estate also contains two staff dwellings known as Ashby Cottages, together with Ashby Farm, which comprises a farmhouse, a collection of former agricultural and storage buildings, areas of hardstanding and land used for equestrian purposes.”

Officer report

Earlier use and planning history

A 2023 certificate confirmed lawful general storage and private equestrian uses and established the site as previously developed land.

“The most relevant planning history relates to application ref. 41892/APP/2023/666, which was approved on 24 August 2023 and granted a Certificate of Lawful Development for the existing use of the land and buildings at Ashby Farm for general storage and private equestrian purposes. The certificate confirms the lawful use of the site and establishes the site as previously developed land for the purposes of Green Belt policy.”

“The planning history demonstrates the long-established presence of the Holland & Holland Shooting Ground and associated ancillary facilities at this location, together with the lawful use of Ashby Farm for storage and equestrian purposes. The current proposal seeks the redevelopment of the Ashby Farm site within this established operational context.”

Officer report

Why officers recommended approval

Officers considered that consolidated development, reduced hardstanding, landscaping and biodiversity improvements would avoid substantial harm to Green Belt openness and support an established rural business.

“This application seeks full planning permission for the comprehensive redevelopment of Ashby Farm to provide a replacement workshop, associated parking, landscaping and supporting infrastructure, whilst retaining the central timber -framed barn.”

“The principal planning considerations are the acceptability of the development within the Green Belt (impact on openness and the principle of the proposed use ), design, heritage, ecology, residential amenity, highways, drainage and other technical matters. The site benefits from a lawful use for general storage and private equestrian purposes and constitutes previously developed land for the purposes of national Green Belt policy.”

Officer report

What members discussed

Members discussed Green Belt building volume, ecological effects, private equestrian use, workshop noise, waste controls and the visual character of the area.

“Members queried whether the substantial increase in building volume proposed would result in significant harm to the openness of the Green Belt. Officers acknowledged that the proposal would result in an increase in the volume of buildings on the site. However, they advised that Green Belt assessments considered a range of factors in addition to building volume, including the extent of hardstanding, the spread of development across the site and the overall visual impact.”

“Members asked about disposal of waste materials generated through workshop operations, including metal waste, oils and solvents, how waste would be managed and whether any waste would be discharged locally. Officers advised that conditions would prevent external manufacturing processes, external storage of materials or waste, and any associated operations outside the approved buildings.”

Minutes

The vote and decision

The officers’ recommendation was moved, seconded and unanimously agreed, and the application was approved.

“Officers’ recommendations were moved, seconded and when put to a vote, unanimously agreed.”

“RESOLVED: That the application be approved…”

Minutes

The members' reasons

“Members also noted that clay pigeon shooting activities already took place in the wider locality and therefore formed part of the existing environmental context.”

Minutes

Source: the council's minutes, quoted word for word.

Sources

  • Hillingdon Planning Committee minutes, 15 September 2026
  • Agenda and papers (council website)

Source: Plota analysis of Hillingdon's committee minutes and officer report. Quotations are the council's own words; headings and summaries are Plota's.

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At the meeting

Council
Hillingdon
Date
Tuesday 15 September 2026
Recommendation
Officers recommended approval
Committee decided
Approved
Vote
Unanimous
Minutes
The council's minutes
Meeting
Agenda and papers (council website)

This committee's year

52 decisions in the 12 months to this meeting.

Source: Plota analysis of the committee's minutes.

Every decision by this council's committees →