Integrating high-density housing along Dublin's rail corridors and around metro stations could help resolve Ireland's housing crisis by maximising urban space, reducing car dependence, and creating vibrant, well-connected communities.

Densifying housing along rail corridors and integrating residential developments directly with rail infrastructure could be transformative for Dublin, addressing both the housing crisis and long-term urban sustainability. The need for innovative housing solutions in Ireland is pressing; with only half of the 62,000 annual housing target being met, there’s a risk of falling even further behind as the population continues to grow. By reimagining the urban landscape to focus on high-density developments along rail routes and around major transit hubs, Dublin can create a model of living that is both space-efficient and well-connected.

This approach has been successfully implemented in cities around the world, particularly in high-density urban centers like Hong Kong, where the metro system was developed with integrated housing and commercial spaces. The outcome was not just improved transportation but vibrant, connected communities centered around these hubs. For Dublin, this means that rather than expanding into green belts and suburban areas, new housing can be concentrated along existing and future rail corridors, maximising the utility of these areas. By densifying these regions, more people will have direct access to high-quality public transport, reducing the dependence on cars and contributing to lower congestion, less pollution, and a reduction in urban sprawl.

Hong Kong MRT's Kwoloon Station - High Density Development about rail/metro station

he Metro Dublin Project 2032 represents a significant opportunity to incorporate housing and transportation infrastructure. Through the project, the construction of up to 80,000 homes each year could become viable, as the expanded transport system will have the capacity to manage increased population density. This would facilitate development in neighborhoods that are currently underused or poorly connected. For instance, areas around new and existing metro stations could be transformed into mixed-use neighborhoods with residential, commercial, and public spaces that support a high quality of life. By building upwards, with housing situated above metro stations and rail corridors, these areas can accommodate a larger population without encroaching on open land or reducing green space within the city.

Integrating housing above and around transit hubs also comes with numerous social and economic benefits. It can lead to increased foot traffic, making local businesses more viable and creating economic activity within these areas. By situating services and amenities close to housing and transit, residents gain immediate access to shops, cafes, and recreational areas, creating lively, self-sustaining neighborhoods. Additionally, with more people living in close proximity to public transport, the cost per passenger for maintaining and running these systems can decrease, making transit more affordable and efficient over time. This model also encourages a lifestyle shift, where people rely less on personal vehicles and more on walking, cycling, and public transport, which is essential for environmental goals.

For Dublin to implement this strategy, urban planning policies would need to prioritise transit-oriented development (TOD) and streamline planning regulations. The government could incentivise developers to focus on higher-density housing along rail lines, as well as set standards that require a mix of housing types to cater to different population segments. Key partnerships between the city council, transport authorities, and private developers would be essential to ensure that these new developments meet housing needs while complementing the surrounding community. Additionally, setting up frameworks for land acquisition and zoning adjustments around rail corridors could enable faster and more efficient development.

Mixed Used development above suburban station - Twickenham, London

The development at Twickenham station in London is an example of this concept in practice, where new housing was built above the rail station, alongside retail spaces and public areas. This not only created much-needed housing but also revitalised the station area, turning it into a vibrant community hub. For Dublin, similar projects around major stations could redefine how neighborhoods function and enhance the quality of life for residents. This model could also be applied to suburban stations, turning them into focal points for growth rather than just transit stops. By prioritising rail-connected housing, Dublin can create well-integrated, high-density areas that provide residents with convenience, community, and connectivity all in one place.