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Celebrating the creative transformation of existing buildings into multiple uses. Projects must repurpose structures for a range of uses beyond their original function.

Recognising projects that breathe new life into existing buildings by converting them into contemporary workspace. The new use must differ from the building’s original purpose.

For innovative conversions that repurpose an existing building into a single use – other than office or residential – and one that is distinct from its original purpose.

The reinvention of existing buildings into housing. The new use must differ from the building’s original purpose

Celebrating the meticulous restoration, sensitive upgrade, or thoughtful adaptation of ancient, listed or other historic buildings and structures.

Highlighting the often-unsung and unseen work behind architecture at scale – projects that deliver environmental upgrades across large or multi-building portfolios. Recognises data-driven or fabric-first approaches targeting net zero benchmarks, from social housing to university estates.

Recognising architect-led interior transformations which revitalise existing spaces – such as retail, workspace, hospitality and commercial projects – while embracing low-carbon, resource-efficient and circular design principles.

Celebrating projects still on the drawing board that promise to push the boundaries of retrofit and reuse thinking. Focused on forward-looking, visionary proposals.

Showcasing projects that adapt buildings and landscapes to confront environmental change. This includes designs that enhance resilience to weather extremes through sustainable strategies such as shading, enhanced planting and biodiversity measures including green roofs, clever ventilation and SuDS landscaping. Landscape projects must form part of a wider adaptive reuse scheme.

Highlighting community-led, neighbourhood-based or temporary reuse projects that bring spaces back to life in inventive ways. Includes new-build schemes (such as pavilions) that incorporate reused materials or circular principles.

Open to internationally leading adaptive reuse and retrofit projects from across Europe that offer valuable lessons for the UK context. Welcomes international practices whose work demonstrates transferable innovation and insight.

Honouring projects that harmoniously blend new and old – where a new element complements an existing structure, extending its life. The existing building must be larger than the floor area of the new build element. Excludes domestic projects.

Recognising personal and domestic-scale projects – from thoughtful home extensions to inspired house upgrades – that enhance the lives of its occupants.

Celebrating architecture that does more with less – smaller-scale retrofits or adaptive reuse projects that achieve exceptional results on a modest budget.

For retrofit projects completed before January 2021 that have truly stood the rest of time. Recognises enduring design quality and performance in projects at least five years old, including past AJ Retrofit or AJ Architecture Award entrants and finalists.