Duxford AvTech has entered the planning process under application 26/04056/FUL, recorded as received on 27 October and validated on 2 November 2026. HBD announced its £120 million aviation technology campus proposals on 11 November. The scheme alongside the historic airfield in South Cambridgeshire would provide about 425,000 square feet of research, engineering and manufacturing accommodation for businesses working on lower-carbon flight.
The developer is working with Imperial War Museums (IWM), which operates the airfield and museum, and Gonville and Caius College, Cambridge. HBD’s 11 November announcement confirms that the application includes detailed proposals for an initial 35,000-square-foot building divided into five units. Submission is a new procedural stage, not planning permission.
Duxford AvTech matters because technology businesses often need facilities that sit between laboratory research and full industrial production. Direct access to an operational airfield could make this a distinctive commercial planning proposal, while the site’s aviation history and surrounding landscape introduce questions that will need careful assessment before any approval.
What the Duxford AvTech application includes
The Duxford AvTech proposal described by HBD includes a collection of flexible buildings intended for research, development and manufacturing. The total of approximately 425,000 square feet is for the aviation campus as a whole, not for the separate museum conservation project also being planned nearby. Public spaces, green areas and walking and cycling connections are included in the developer’s description.
HBD says the detailed first-phase component would comprise a 35,000-square-foot building with five units of around 7,000 square feet apiece. This degree of specificity is important: an overall campus concept and a detailed initial building may pass through different design and planning stages, and the submitted application will determine what is being sought for each component.
Public-register data identifies the hybrid proposal as South Cambridgeshire application 26/04056/FUL, recorded as received on 27 October and validated on 2 November 2026. It includes full details for the initial AvTech phase and outline proposals for its wider expansion. HBD publicised the scheme on 11 November, with contemporary reporting by BE News and Construction Enquirer. The application remains under consideration, not approved.
Why the airfield location is important
Duxford AvTech would be located beside an operational aviation site with strong connections to the Cambridge research economy. HBD highlights access to the Civil Aviation Authority airstrip at IWM Duxford and proximity to the University of Cambridge’s Whittle Laboratory. The combination is intended to help firms test and develop aircraft systems without separating research operations from their practical facilities.
The developer says the director of the Whittle Laboratory has written in support of the application. That is a claimed expression of support, not a planning determination. The application’s actual transport, environmental and heritage assessments will be more useful than general statements of enthusiasm in establishing whether development of this scale is acceptable in this setting.
The broader idea is to bring together specialist manufacturing, sustainable propulsion, advanced engineering and related supply chains. HBD managing director Hamer Boot said: “Submitting the planning application is an important step forward for Duxford AvTech.” The remark accompanied the company’s 11 November announcement.
Heritage and development around IWM Duxford
IWM Duxford’s history is part of the proposal’s appeal but also makes design scrutiny particularly important. In its earlier scheme material, HBD identified the airfield conservation area and the presence of listed historic buildings as matters requiring sensitive treatment. Its proposals must demonstrate how contemporary industrial facilities relate to the protected aviation setting.
Buildings designed for research and manufacturing may involve large internal volumes, servicing access, plant and deliveries. Their design also needs to work with aviation safety requirements and the movement of people within an active museum environment. These are planning considerations to examine in the submitted technical documents rather than grounds for assuming a refusal or approval.
Landscaping and public routes should be judged as functioning parts of the scheme, not simply attractive features on promotional drawings. The quality of walking and cycling links, boundary treatments and access arrangements will influence how the campus fits alongside existing airfield operations and nearby transport connections.
Why the latest figures differ from earlier announcements
The Duxford AvTech proposal was previously announced in September 2025 when HBD became development partner. At that point the company described a £162 million scheme with approximately 435,000 square feet of space across a 25-acre site. Its new November 2026 submission describes a £120 million campus and around 425,000 square feet.
Those figures relate to announcements at different stages. The difference should not automatically be presented as a £42 million cost reduction, a redesign saving or evidence that 10,000 square feet has formally been removed. The underlying valuation assumptions, scope and measured areas would need comparing before any such conclusion could be justified.
HBD previously forecast employment and wider economic benefits from the campus. These remain developer projections, not jobs already created by construction. A decision-maker will need to weigh the actual application against relevant development plan policies and evidence, including issues relating to location, employment need, heritage and environmental effects.
The separate IWM Lab proposal and next steps
IWM is promoting a distinct 105,000-square-foot conservation and training building intended to preserve its collection and support specialist teaching and visitor engagement. Although the IWM Lab is a separate project commercially, its first phase (Phase 1A) and the initial AvTech building (Phase 1B) form part of the same hybrid planning application, 26/04056/FUL. HBD says the museum has secured more than £10 million towards IWM Lab and is seeking a further £15 million. The projects’ costs and proposed floorspace should not be conflated.
With the application validated on 2 November, the next important milestones are public consultation, assessment of the submitted evidence and an eventual decision. The application combines detailed first-phase proposals with an outline for subsequent expansion, so any future permission will need to be read carefully to understand what is authorised at each stage. Our guide to planning applications explains why submission does not establish development rights.
Duxford AvTech is now the subject of a validated application, while the 11 November announcement supplied updated figures for the campus following earlier scheme publicity. The proposal is significant for the region’s specialist employment floorspace and low-carbon aviation industry, but delivery depends on planning scrutiny and later investment decisions, not the promotional headline alone.
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