Transport accessibility is a key factor in urban planning, influencing regional economic development, community cohesion and residents' well-being. While transport accessibility has been widely studied in the academic field and has a certain importance in promoting sustainable urban development and social equity, there is still a certain gap in its impact on social housing communities and residents with difficult transport choices. Christchurch is characterized by a strong car culture, with private cars as the main means of transportation. However, 25% of the population in the Canterbury region has a disability and nearly 90% of OCHT (Ōtautahi Community Housing Trust) tenants do not have the ability to travel by private car. Many residents face travel difficulties and lack effective transportation options.

This study adopted a mixed research methods approach, combining geographic information system (GIS) spatial analysis, QGIS web-based accessibility modelling, and secondary data analysis from OCHT and Christchurch City Council. Service area analysis and isochrone mapping were applied to quantify accessibility by different modes of transport, including walking, cycling, public transport, and driving. Meanwhile, accessibility to supermarkets, bus stops, clinics, parks, schools, and artworks near OCHT properties was assessed. In addition, demographic and housing data from OCHT provided context for interpreting accessibility constraints faced by tenants. The study aimed to: (1) assess the transport status of OCHT tenants, (2) analyse the accessibility of key amenities and transport infrastructure around OCHT properties, (3) identify strategies to enhance transport options and improve tenants’ living experience, and (4) inform future property allocation and development planning in OCHT. This study combined transport accessibility analysis with social housing research to develop accessibility profiles for each property, providing insights into potential differences in accessibility levels and infrastructure provision between different neighbourhoods and areas. And provides a quantitative basis for optimizing housing placement according to accessibility needs, ensuring improved living conditions for tenants, especially those with low incomes or limited mobility. By strengthening connections between OCHTs and their tenants, the research aims to support equal access to transport and infrastructure services, thereby promoting the development of more inclusive and resilient communities.