By Paul Addison, Founder, DevAssist

The hidden risk in property transactions

Every property transaction involves risks. Some are obvious – a structural defect, a title problem, a drainage issue or a restrictive covenant. These are the kinds of issues that buyers, solicitors and lenders expect the conveyancing process to uncover, explain and manage.

But beyond these lies another category of risk that is often much harder to see. It sits beyond the property boundary.

A home may look perfect on the day of the viewing. The outlook could be open, the road quiet and the surrounding land settled, yet nearby land may already be allocated for development. A historic planning application may still be relevant. A council may be under pressure to deliver new housing. A neighbouring site may have development potential that is not obvious without planning experience.

These issues can affect a property’s value, desirability and future enjoyment. They can change views, privacy, natural light, traffic, noise, access and resale potential. For commercial properties, they can also affect occupation, lending security and future exit strategy.

Development risk is not always visible, but it can be highly significant.

Why standard searches do not always tell the full story

Standard conveyancing searches play an important role. They tell buyers a great deal about the property itself, including drainage, environmental matters, local land charges and planning history. What they do not provide, however, is a specialist investigation into what is happening, or what could happen, in the surrounding location.

That distinction matters.

A buyer is not only purchasing bricks and mortar. They are buying into a setting. That setting influences how the property feels, how it functions and how it may perform financially. Location is one of the biggest contributors to value, yet it often receives the least specialist investigation during a transaction.

The simplest way to explain DevAssist is this: a structural survey tells you whether the building is sound, a DevAssist Development Risk Report looks at the location.

We investigate the area surrounding a property for current and future development risk. That includes planning applications, adopted and emerging local plan policy, SHLAA and SHELAA sites (explained further in this blog), allocated land, infrastructure proposals, planning designations and the wider development potential of nearby land.

DevAssist is not a generic search. It is an expert-led location investigation carried out by planning specialists.

Why DevAssist was created

I have spent more than 35 years working in land, planning and housebuilding. Over that time, I have seen how development comes forward, how land is promoted, how planning policy shifts and how sites that appear quiet or protected can soon become active development opportunities.

Most buyers do not have that knowledge, and many solicitors also don’t because their role focuses on legal due diligence, not land and planning assessments. That is not a criticism of conveyancers – it is simply recognition of a gap in the process.

DevAssist was created to fill that gap.

Case study: football stadium development in Cambridge

We once had a buyer considering a residential property in Cambridge. On the face of it, this was an attractive suburban purchase, however, our DevAssess Premium Residential Report identified two live sites and five at risk of development within the property’s vicinity.

Within this, the most significant issue was a historic planning application for the redevelopment of a nearby football stadium. The proposal set out to increase spectator capacity to 11,000 while redeveloping the wider site to include student accommodation, community, leisure, retail and business units.

That kind of development can hugely change an area. It may affect traffic, noise, views, local activity and property valuation. Our conclusion was that this risk of development – within 75 metres of the site boundaries – should be considered high. As a result, the buyer was able to consider the property with a much clearer understanding of what the future could hold.

Case study: a quiet cul-de-sac in Rickmansworth

In a quiet cul-de-sac in Rickmansworth, Hertfordshire, a home overlooked an expanse of fields with a peaceful, semi-rural feel. But beneath the location’s initial pull, our DevAssist report identified four potential development sites near the property, including a proposal for 55 new houses on the fields at the end of the cul-de-sac.

The issue here was not simply that houses might be built nearby. The road itself could become a main access point for the development, potentially changing the status of the cul-de-sac and significantly increasing traffic. We assessed the risk as medium to high.

Again, the buyer was not told whether to proceed – that decision remained theirs. But what they did receive was the full extent of information needed to aid this decision.

needed before the exchange, while they still had options.

Giving buyers the power of choice

With a DevAssist Development Risk Report, we do not alarm buyers – we give them choice.

We source and analyse raw planning data, review the local authority’s policy position, consider planning designations, assess five-year housing land supply, and look at the development potential of nearby land.

We also review technical documents, such as the Strategic Housing and Economic Land Availability Assessment (SHELAA), which can identify any land a council may consider to be suitable for development.

Most buyers have never heard of a SHELAA site. Many would not know where to find one or how to interpret it. Yet, in the right circumstances, it can change a property’s whole picture.

Every DevAssist report is peer-reviewed before it reaches the client. If a buyer wants to understand the findings in more detail, our helpline gives them the opportunity to speak to the person who produced the report.

At present, over 50% of DevAssist reports identify one or more high-risk development sites within 75 metres of the property or asset. That does not mean that every one of those transactions should cease, but it does show that meaningful development risk is far more common than many people assume.

For buyers, the benefit is simple. They receive a fuller picture before completion and can understand what may affect the property’s surroundings, value and quality of life before they are legally committed.

Expert-led location intelligence

The property market is always changing and planning policy moves fast. Housing supply pressures, grey belt discussions, infrastructure needs and local authority delivery targets are all shaping the future of development across England and Wales. In that environment, relying only on what sits within the property boundary is no longer enough.

Development risk cannot always be avoided, but it can be identified, understood and considered before it is too late.

Buyers deserve to understand the location they are buying into. That is why DevAssist exists.