Why a Housing Land Supply Shortfall Matters
A shortage in housing land supply can have a major impact on planning decisions.
National planning policy places strong emphasis on boosting housing delivery. If a council is failing to provide enough housing land, there is increased pressure for additional sites to come forward.
This often means:
- Planning applications may have a greater chance of success
- Refusals are more vulnerable at appeal
- Existing restrictive planning policies may carry reduced weight
- Sustainable edge-of-settlement sites become more attractive
For many landowners, this can create an opportunity to unlock substantial development value
What is the “Tilted Balance”?
When a council cannot demonstrate a deliverable 5-year housing supply, the planning system can
shift in favour of development through what is commonly referred to as the
“tilted balance”.
The “tilted balance” is a planning concept that arises from the presumption in favour of sustainable development set out within the National Planning Policy Framework (NPPF). It is most commonly engaged where a local planning authority cannot demonstrate an adequate supply of deliverable housing land or where relevant development plan policies are considered out of date.
When the tilted balance applies, planning decision-makers are required to weigh the benefits of a proposed development against any identified adverse impacts. In practical terms, there is often greater emphasis placed on the need to deliver new housing, particularly in areas experiencing housing shortages. This can create opportunities for sites that may previously have struggled to gain planning support under a more restrictive policy framework.
Importantly, the tilted balance does not automatically guarantee planning permission. Every application must still be assessed on its own merits, taking account of matters such as sustainability, design, environmental impacts, infrastructure capacity and any site-specific constraints. However, where a proposal can demonstrate clear planning benefits, the tilted balance can significantly improve the prospects of securing consent on suitable sites.
For landowners, understanding whether the tilted balance applies within their local authority area can be an important factor when assessing development potential, as housing land supply shortfalls can materially influence planning decisions and create opportunities that might not otherwise exist.
How a 5YHLS Shortfall Can Increase Land Value
Land values can increase dramatically once planning permission is secured, and a 5-Year Housing Land Supply (5YHLS) shortfall can often play an important role in creating that opportunity. Where a local planning authority cannot demonstrate an adequate supply of deliverable housing land, there is often greater pressure to support sustainable housing development in order to address the shortfall. This can improve the planning prospects of sites that may previously have been considered less favourable.
As planning prospects improve, market interest from developers, housebuilders and land promoters can increase accordingly. Sites that benefit from a realistic opportunity to secure planning permission may attract greater demand because purchasers recognise the potential for future value growth. In some cases, the prospect of development alone can create additional value through hope value, even before a planning application is submitted.
Whilst a housing land supply shortfall does not guarantee planning permission, it can significantly alter the planning context within an area. For landowners, understanding whether their local authority has an adequate housing land supply can therefore be a key factor in assessing development potential, future market interest and the possible value of their land.
Across England, residential development land values can range from several hundred thousand pounds per acre to several million pounds per acre in high-demand areas.
A weak 5-year housing supply position is often one of the key planning factors that helps make this uplift achievable. Suitable sites may benefit from a 5-Year Housing Land Supply shortfall, particularly where they are located in sustainable locations, experience strong local housing demand, can accommodate an appropriate development density and are not unduly affected by affordable housing requirements or other viability constraints. In such circumstances, the need to deliver additional housing can become a significant material consideration, potentially improving the prospects of securing planning permission and increasing market interest from developers and housebuilders.
Location of the land
Local housing demand
Density of development
Affordable housing requirements
Why Many Councils Struggle to Maintain a 5YHLS
A large number of councils regularly face difficulties maintaining a full 5-Year Housing Land Supply. Whilst land may be allocated within Local Plans, not all allocated sites come forward for development as quickly as anticipated. Delays can arise from infrastructure requirements, ownership issues, viability challenges, planning constraints, market conditions and wider economic factors, all of which can affect housing delivery rates.
At the same time, housing requirements continue to evolve, and many authorities face increasing pressure to deliver new homes. Where delivery falls below expectations, councils can find it difficult to demonstrate that sufficient deliverable sites exist to meet their housing needs over the next five years. As a result, additional sites may be required to come forward to help address housing shortfalls and support future growth.
For landowners, this can create opportunities. Where a council is unable to demonstrate an adequate housing land supply, there may be greater scope for suitable and sustainable sites to be considered favourably through the planning process. Whilst every proposal remains subject to detailed planning assessment, housing land supply shortages can become an important material consideration and may improve the prospects of development on appropriate sites.
This can happen for several reasons, including:
Delays in delivering large strategic housing sites
Outdated Local Plans
Housing delivery targets increasing
Infrastructure constraints
Slow build-out rates by developers
Does Your Land Have Development Potential?
Even if your land is currently outside a settlement boundary, designated as Green Belt or has previously been overlooked by the planning system, changing planning circumstances can significantly improve its development prospects. Local Plan reviews, housing land supply shortages, settlement boundary revisions, infrastructure investment and evolving national planning policies can all create opportunities that may not have existed previously.
Many landowners assume that because development has not been considered in the past, it is unlikely to be considered in the future. However, planning policy is constantly evolving, and sites that were once regarded as unsuitable can become increasingly attractive as councils seek to meet housing and economic growth requirements. In some cases, factors such as a lack of deliverable housing land, strategic growth objectives or changes in Green Belt policy can alter how a site is viewed by decision-makers.
For this reason, it is important not to judge a site's potential solely on its current planning status. A professional assessment can help identify opportunities, assess constraints and provide a clearer understanding of whether your land may have realistic development prospects. In many cases, landowners are surprised to discover that their land has greater potential than they initially realised.
Land may have increased development potential where it:
Proximity
Land may have increased development potential where it adjoins or lies close to existing housing, sits adjacent to an existing settlement boundary, or represents a logical extension to a village, town or urban area. Sites that are well related to established settlements are often viewed more favourably because they can provide access to existing services, facilities, public transport and infrastructure. Such locations may also be capable of delivering growth in a manner that integrates with the existing built environment rather than creating isolated or disconnected development. Whilst proximity alone does not guarantee that development will be supported, it is frequently one of the most important factors considered when assessing a site's suitability for future housing or employment development.
Access
Land may have increased development potential where it benefits from suitable access to the existing highway network and is well connected to surrounding areas. Safe and practical access is a fundamental planning consideration, as councils and highway authorities will want to ensure that future development can be accessed efficiently by residents, visitors, service vehicles and emergency services. Sites located close to established roads, public transport routes and key infrastructure often perform more favourably because they can support sustainable patterns of movement and integrate more effectively with existing communities. Whilst access constraints do not always prevent development, sites with good connectivity and realistic access solutions are generally better positioned to accommodate future growth.
Services
Land may have increased development potential where it is located close to shops, schools, healthcare facilities, employment opportunities and other local services. Access to everyday facilities is a key component of sustainable development, as planning authorities generally seek to direct growth towards locations where future residents can access essential services without excessive reliance on private vehicles. Sites that are well connected to existing communities and benefit from nearby amenities often perform more favourably during planning assessments because they can support sustainable living patterns and make effective use of existing infrastructure. Whilst the availability of local services is only one factor among many, it is frequently an important consideration when assessing a site's suitability for future development.
How Landowners Typically Promote Their Land
There are generally two common routes used to maximise development value:
Promotion Through the Local Plan Process
The first is promotion through the Local Plan process, where land is submitted during Call for Sites exercises and promoted throughout the preparation of the Local Plan with the aim of securing an allocation for future development. This is often viewed as a strategic, long-term approach because it seeks to establish policy support for development before a planning application is submitted.
Planning Applications on Unallocated Sites
The second route involves pursuing planning applications on unallocated sites. In certain circumstances, particularly where there are policy weaknesses such as a 5-Year Housing Land Supply shortfall, suitable sites outside allocated areas may still be capable of securing planning permission. These are often referred to as windfall sites and can provide opportunities to bring land forward without waiting for the completion of the Local Plan process.
In many cases, a combined strategy is the most effective approach. By promoting land through the Local Plan process whilst simultaneously monitoring opportunities for planning applications, landowners can maximise flexibility and ensure that all potential routes to development are explored. This approach can improve the prospects of securing planning permission, increase market interest and help unlock the full development value of the land.
At Value My Land, we specialise in identifying and unlocking development opportunities for landowners across England. We assess the planning potential of your land, review relevant planning policies, monitor Local Plan reviews and housing land supply positions, and advise on the most appropriate strategy for maximising value. Whether the opportunity lies through Local Plan promotion, a Call for Sites submission, a planning application or a combination of approaches, we can help guide the process from the outset.
Our team works to ensure that sites are promoted effectively, supported by robust planning evidence and presented in the strongest possible light to local planning authorities. By combining strategic land promotion with a detailed understanding of the planning system, we help landowners understand their options, identify opportunities that may not be immediately obvious and maximise the prospects of securing future development value. In many cases, landowners are surprised by the potential that exists once a site has been professionally assessed and promoted.
How Value My Land Can Help
At Value My Land, we help landowners understand whether their land may have development potential. We can:
- Review your site’s planning prospects
- Assess the council’s current housing land supply position
- Provide an indication of potential land value
- Identify possible planning strategies
- Help connect you with suitable development and promotion opportunities
We also work with experienced planning professionals and land promotion specialists to help landowners maximise the value of their land.
Free Initial Land Review
If you would like an initial assessment of your land, simply send us the location of your site. You can provide:
- A postcode
- A Google Maps pin
- A what3words reference
- A brief description of the site location
We can then undertake an initial review of its planning potential.
Get Your Free ReviewFrequently Asked Questions
What does 5YHLS mean?
5YHLS stands for “5 Year Housing Land Supply”. It refers to whether a local authority can demonstrate enough deliverable housing land for the next five years.
Does a housing land supply shortfall guarantee planning permission?
No. However, it can significantly improve the likelihood of obtaining planning permission on suitable and sustainable sites.
Can land outside settlement boundaries still obtain planning permission?
Yes. Many successful housing developments are approved on sites outside settlement boundaries, particularly where councils have weak housing land supply positions.
How do I find out whether my council has a 5-year housing land supply?
This normally requires reviewing:
- Housing land supply statements
- Local Plan evidence
- Recent planning appeal decisions
- Planning policy updates
Find Out Whether Your Land Has Development Potential
Understanding your local council’s 5 Year Housing Land Supply position could be the first step towards unlocking the value of your land. Contact us today for a free initial review.