been commissioned by CABE to undertake a review of the initiative and this work later informed Building for Life 12. Following the closure of CABE, Birkbeck and Kruczkowski worked together to produce a new Building for Life that was appropriate to the post-CABE era. Building for Life 12 was a new publication and reduced the number of Building for Life considerations from 20 to 12. This was partly achieved by consolidating a number of considerations. It was also partly in response to the government requiring that the new tool did not seek to impose additional or contradictory regulatory pressures on the house building industry with particular respect to building performance and internal space standard that it considered as being addressed by way of the Building Regulations and National Described Space Standards (2015). In May 2018, the first doctoral thesis was published on Building for Life by Stefan Kruczkowski. Entitled 'Exploring the effectiveness of Building for Life in improving suburban residential design quality'. The research included the first regional housing quality audit completed since CABE's series of housing quality audits. In 2019, Building for Life 12 was cited in the National Planning Policy Framework (Paragraph 129) and the National Design Guide. Adeliladu am Oes 12 Cymru / Building for a Healthy Life Wales (2015 - present) In 2015, the Welsh Government and the Design Commission for Wales published Adeliladu am Oes 12 Cymru: Arwydd o le da I fyw ynddo. Building for a Healthy Life (2020 - present) In 2020, Building for Life 12 was rewritten as Building for a Healthy Life following a partnership with NHS England and NHS Improvement. The authors were approached by NHS England and NHS Improvement that was seeking to disseminate the findings of its Healthy New Towns Programme. Key policy changes provided a further opportunity to promote active travel through Building for a Healthy Life, in particular: Department for Transport (2020) Gear Change: a bold new vision for cycling and walking, HMSO and Department for Transport (2020) Cycle Infrastructure Design, LTN 1/20. Other policy and practice influences were the government's increased focus on biodiversity new gain and water management. Initial proposals were for the NHS to create and publish its own design tool although a decision was made to utilise the Building for Life 12 tool, updating this to place a greater emphasis on walking and cycling to encourage higher levels of physical activity. As