A Tale of Two Cities: Portsmouth starts 845 homes, while Southampton starts 10.

While these neighbouring cities share a coastline, their approaches to the housing crisis appear to be drifting miles apart. New data highlights a stark contrast in residential development between Liberal Democrat led Portsmouth and Labour run Southampton, with one city surging ahead while the other stalls 

​Portsmouth: A Hub of Growth

​Portsmouth has recently been ranked tenth in the UK for the fastest growth in newly built homes. According to research from Bluefield Realty Group, the city has seen a 55.56% increase in completed homes over the last five years. The momentum is not slowing down; in 2025 alone, work began on 845 new houses, showcasing a proactive approach to urban density and development, whilst ensuring affordability for local people. 

​This growth aligns with the Liberal Democrats' national policy to address the housing crisis by empowering local authorities to build. The party has committed to a national target of 380,000 new homes per year, including 150,000 social homes, emphasising that local councils should be rewarded for supporting the housing growth agenda.

​In Portsmouth, this policy is being put into practice. Councillor Darren Sanders, the Liberal Democrat Cabinet Member for Housing and Tackling Homelessness, has emphasized the administration's focus on long-term stability:

​"People always say they want homes Portsmouth people can afford. So do Liberal Democrats. Victory Quay at Tipner is the latest proof of that and it follows our £130m commitment to buy council homes for those wanting one. We know space is tight but we want every Portsmouth person to have a home they can afford."

​Southampton: A City at a Standstill

​In contrast, the housing picture in Labour-run Southampton is significantly bleaker. Government data reveals that construction started on just ten permanent houses in Southampton during the  2025 financial year.

​This figure is a historic low for the city, especially considering its peak in 2012-2013 when 1,140 homes began construction. While the Labour administration in Southampton faces similar demand to its neighbor, the output has lagged far behind other nearby areas—with the 845 starts in Lib Dem Portsmouth vastly overshadowing the rounded figure of 10 starts in Southampton. This gap is further highlighted by neighbouring New Forest (320 starts) and Fareham (340 starts), both of which significantly outperformed the Southampton figures.

​The Impact of the Divide

​Spokesperson for Bluefield Realty Group, noted that while building more homes is essential, it must be paired with accessibility.

In Portsmouth, the high volume of new projects suggests a pipeline that could eventually ease market pressure and stabilise the local market. In Southampton, however, the lack of new starts threatens to leave first-time buyers and renters with almost no new options, potentially driving up prices in a limited market.

​As the UK continues to grapple with a national housing shortage, the diverging paths of these two South Coast cities serve as a case study in how local leadership and planning policy can drastically alter the landscape of a community.