[16][17] He is at the forefront of utilising observational techniques inspired by the likes of William H. Whyte for pedestrian and bicycle planning and has been called "the Modern Day Jane Jacobs".

[54] In 2014, he was cited as one of the influential urban planners suggesting that radical solutions were needed if improvement was to be seen in respect to congestion problems in the city of York.

[59] In January 2024, Colville-Andersen announced he is designing a Nordic-style trauma-informed therapy garden for people suffering from PTSD in Kyiv.

The initial site for the garden was located in the Podil neighbourhood, however, it was changed to be in the northern part of Kyrylivskyi Hai [uk] park, near a psychiatric hospital.

[60] Colville-Andersen's team plans to work together with the hospital's staff to create a learning hub for mental health professionals from all over the country.

The project in Kyiv is a pilot one, Colville-Andersen has confirmed he and his team have early-stage plans for building more gardens like these in Lviv and Mykolaiv.