Expansion of Laneway Homes in Vancouver

Background

Laneway homes appeal to policymakers as a form of ‘missing middle’ housing that expands renters’ choices while remaining more tolerable to incumbent owners. Prior research suggests their distribution is shaped by selection effects: laneway homes are more likely in neighbourhoods where neighbours are less resistant, while more expensive neighbourhoods, where laneway homes may negatively affect property values, have seen relatively limited uptake. This project aimed to further investigate the factors influencing laneway home distribution within Vancouver.

Methodology

This project used quantitative analysis of housing and transaction data combined with insights from community partners. First, it analyzed owners’ decisions to add laneway homes to existing and newly built properties, using transaction and building characteristics data to examine patterns of uptake across neighbourhoods. Second, it examined whether laneway home uptake has shifted geographically over time, particularly toward higher-value neighbourhoods, and tested whether the impact on neighbouring property values has changed. Third, it analyzed builders’ decision-making, including whether speculative builders are more likely to add laneway homes only where they command a price premium, compared to custom-built homes or additions driven by homeowner preferences.

Results

This project produced a podcast episode and a journal article on the expansion of laneway homes in Vancouver. It finds that laneway homes, as a form of gentle densification, generate negative spillover effects on neighbouring property values, concentrated in higher-valued neighbourhoods and negligible for median- and lower-valued homes. These findings demonstrate that the costs and benefits of increased housing density vary across neighbourhood types, helping to explain why laneway home uptake is uneven across Vancouver and carrying important implications for housing policy and zoning reform.