Back to Projects

Expedition and our sister company Useful Projects are working with Human + Nature and Aviva Investors to develop the engineering proposals and sustainability vision for this residential led, mixed use development in Gomm Valley, Buckinghamshire.

Around 1,000 new homes will be created, sensitively situated within a beautiful dry chalk valley in the Chiltern Hills. Alongside mixed tenure housing, the development will provide a new school, commercial and amenity facilities, set out around a new village square.

Little Haldens will be an exemplary sustainable neighbourhood that addresses all aspects of social, environmental and economic sustainability. We have worked with the client and design team to set the over arching vision for the project which is underpinned by a suite of sustainability objectives and targets. In close collaboration with the team we developed strategies for achieving the ambitious targets captured in the Sustainability, Waste, Water and Energy Statements for planning.

For the energy strategy, we focussed on providing high levels of energy efficiency and passive design strategies, such as enhanced fabric performance, thermal mass and natural ventilation, as well as active strategies such as waste water and air heat recovery.

We also carried out a renewable energy feasibility study and tested a series of low carbon options to advise the team on the most appropriate heating strategy.

The waste strategy has been designed to retain the highest value of materials and includes on site management of organic waste linked to food production.

The valley locations required us to optimise construction platforms through a cut and fill balance. In doing so, we were sensitive to the chalk habitats and the integration of expressed drainage features that also enhance ecological value.


Ed McCann
Judith Sykes
Bruce Martin
Fred Labbé
Carrie Behar
Daniel Raymond
Andrew Komarnycky

Client: Human + Nature / Aviva Investors

Architects: K+S Architects, Mæ, Periscope

Status: Planning


Images courtesy of Periscope

Little Haldens, Gomm Valley, Buckinghamshire