Feilden+Mawson were commissioned by Old Sarum Airfield Ltd to produce a masterplan and a Conservation Management Plan for Old Sarum Airfield, a WWI airfield which was designated as a conservation area.

The airfield’s main importance lies in the physical relationship between its Listed WWI hangars and the grass flying field. The site is located in the setting of a Schedule Monument. The masterplan included 480 dwellings, refurbishment of WWI hangars, control tower, archive facilities, restaurant, and a museum flying centre and was designed as a holistic approach to achieve a financially sustainable, active airfield.