“Government wants to hold developers to account for new home delivery and ensure that sites with planning permission are built”
Emily Williams, Savills Research
To have any impact on affordability, we need to build more homes. We look at the catalysts that could shape meaningful progress: government pressure on developers, new housebuilders, and increasing land supply

The housebuilding industry is producing 210,000 new homes per year in England, more than at any time since the global financial crisis (GFC). But there is still a need to do more. The Government’s consultation on assessing housing need sets annual housing need in England at 266,000, while the House of Lords Economic Affairs Committee suggested over 300,000 new homes are needed each year to have any impact on affordability.
Government pressure
The white paper explicitly identifies slow delivery as one of the major difficulties facing the housing market. It proposes a more streamlined approach to planning, giving local authorities increased powers to deliver community infrastructure, and applying a standardised method to calculating housing need that could result in increased land supply in high-demand areas. It also suggests that local planning authorities could have powers to turn down applications from developers who have not shown a strong track record of delivering previously consented sites.
The Government wants to hold developers to account for new home delivery and ensure sites with planning permission are built. Although it’s unclear how this will take effect, it is evident that this pressure, combined with the new housing delivery test for local authorities, means that the development industry can’t merely maintain current levels of delivery.
Demand and delivery
A step change in delivery is most likely to come from new entrants to the market. Over the past 18 months, we’ve seen small and medium housebuilders, much reduced during the GFC, re-enter the land market. But their resurgence relies on government support and continued housing market strength.
Institutional investors are also starting to fund build-to-rent schemes. In the UK, 17,000 build-to-rent homes have been completed, but this is an emerging sector. We expect delivery to increase as confidence grows; 79,000 build-to-rent units are in the development pipeline.
The greatest untapped potential comes from housing associations. The Savills Housing Sector Survey 2017 revealed that 66% of housing associations plan to deliver market-sale homes over the next five years, and more than 80% want to build homes for shared ownership or affordable rent. Delivering affordable housing increases the potential for absorption of new homes and allows for continued housebuilding in the event of a market downturn.
If housing associations are to achieve these ambitions, they need to have access to land and construction capacity, either their own or through partnerships. In our survey, 82% of housing associations said they plan to or are considering partnering with a private developer in the next five years. As many traditional builders are at capacity, the new development ambitions of housing associations could start to bring modern methods of construction (MMC) into the mainstream. We estimate that there could be capacity to build over 60,000 homes per year through MMC by 2022.
Land availability
The potential to deliver homes will always be limited by the supply of land, especially in high-demand areas. The planning system could do more to respond to market signals to release land where affordability is most stretched. While the number of homes gaining permission each year has increased 56% since the 2012 introduction of the National Planning Policy Framework, this has been spread across England, and not where new homes are needed the most.
For housing delivery to reach 300,000 homes per year, we need to make full use of the untapped market capacity in higher-demand areas. There is a shortfall of almost 90,000 planning consents each year in the least affordable areas in the country. More land availability in these areas would allow new entrants in the market without pushing up land values. This can then support higher output from smaller developers and mixed tenure delivery programmes from housing associations, which would move us towards being able to deliver the housing needed to support continued economic growth.