Hardstanding LDC fails after 2023 top-up is treated as fresh development

A hardstanding LDC has failed after an Inspector treated extensive resurfacing carried out in 2023 as a fresh engineering operation, despite evidence that hardcore had first been laid on the site decades earlier.

Inspector R Satheesan dismissed the appeal at land south-west of Woodgreen Road, Waltham Abbey, on 2nd October 2026. The appellant said the hardstanding had existed for more than 10 years and traced its origins back to 1987, but the Inspector found the evidence did not establish that the current hardstanding had been substantially completed before the relevant four-year cut-off.

The decision is a useful warning for anyone relying on the transitional four-year enforcement period. Later works described as maintenance or a “top up” can themselves amount to new operational development if their scale and character cross the planning threshold.

Why the hardstanding LDC depended on the old four-year rule

The appeal concerned an application under section 191 of the Town and Country Planning Act 1990 for a certificate confirming the lawfulness of an existing hardstanding area.

That made the planning merits irrelevant. The question was whether the operations had become lawful through the passage of time, and the burden was on the appellant to prove the case on the balance of probabilities.

The timing matters because England’s enforcement rules changed on 25th April 2024. Operational development substantially completed on or after that date is generally subject to the new 10-year period. The transitional arrangements preserve the former four-year period where the operations were substantially completed before 25th April 2024.

Planning Geek’s guide to enforcement time limits explains that transition in more detail. The statutory starting point is section 171B of the 1990 Act, read with regulation 5 of SI 2024/452.

Because the LDC application was made on 18th September 2024, the Inspector identified 18th September 2020 as the relevant four-year date for the older operational development case being advanced.

The appellant said the hardcore dated back to 1987

The hardstanding LDC evidence included statutory declarations from people connected with the land and the works.

One declaration said the site had been cleared in 1987 and around 800 tons of hardcore mix used to form a solid foundation. Further hardcore was said to have been added over the following three or four years to maintain its consistency.

Other declarations supported the account that the original works dated from 1987. The evidence also explained that the site later became overgrown and suffered fly-tipping.

That sort of witness evidence can be important in a lawful development certificate case. An applicant does not automatically lose because historic invoices, photographs or council records are missing. Where an authority has no contradictory evidence, sufficiently precise and unambiguous evidence from the applicant can be enough.

Here, however, the Inspector found significant problems with the evidence when it was compared with the physical and photographic record.

Aerial photographs did not show the claimed hardstanding

The council relied on historic aerial imagery which did not show the hardstanding across the area claimed by the appellant.

The appellant accepted that the hardcore could not be seen in aerial photographs dating from 1999, but argued that vegetation had regrown over it.

The Inspector was not persuaded. The claimed hardstanding covered a considerable area in an otherwise natural landscape of woods and fields. Even with vegetation growing over it, he expected a different pattern on the ground to be apparent.

The absence of clear aerial evidence over roughly 25 years was therefore significant.

Photographs from 2018 showed fly-tipping and waste on the land, but they did not clearly show the hardcore or the extent of hard surfacing visible by the time of the Inspector’s 2026 site visit.

That did not simply leave the evidence evenly balanced. The Inspector found the photographic material contradicted the case that the present hardstanding had existed in the claimed form since 1987.

The 2023 “top up” became the decisive problem

The most useful part of this hardstanding LDC decision concerns what happened in 2023.

The appellant’s own evidence said contractors were instructed to clear overgrowth, install a membrane over the previous surface and apply crushed concrete on top. Those works were described as topping up the existing hardcore.

The Inspector saw the resulting hardcore during his site visit. Given the extent of the works and the area over which they were carried out, he concluded that the 2023 operation was not merely insignificant maintenance.

As a matter of fact and degree, it was an engineering operation requiring planning permission. The Inspector described it as a “new act of development”.

That finding was fatal to the immunity argument being advanced for the existing hardstanding. Whatever may have happened in 1987, the particular operational development created in 2023 could not have been substantially completed by 18th September 2020.

The point is easy to underestimate. An old surface does not necessarily carry its planning immunity forward through substantial later works. If later excavation, membrane installation, deposition, compaction or resurfacing amounts to a fresh engineering operation, the planning clock must be considered for that operation in its own right.

The LDC plan created another evidential problem

There was a separate weakness in the hardstanding LDC application material.

The statutory declarations referred to a plan showing the hardstanding in a rectangular area with a north-south orientation. The Inspector found that the hardstanding actually present on the land followed a broadly rectangular area running east-west.

That mismatch mattered because an LDC must identify precisely what is said to be lawful and the land to which the certificate would apply.

The Inspector referred to Planning Practice Guidance stating that an authority may be justified in refusing a certificate where the information supplied is not sufficiently precise.

For anyone preparing an LDC, that is a practical point worth taking seriously. The evidence, red-line or certificate plan, description and physical development on the ground all need to describe the same thing. A certificate is not an approximate declaration that something somewhere on the site has probably been there long enough.

Planning Geek’s lawful development certificate guide explains why the wording and extent of a certificate matter long after the application has been decided.

What the Waltham Abbey appeal does and does not decide

This hardstanding LDC decision does not establish that adding material to an old surface always creates a fresh breach of planning control.

The Inspector’s conclusion was expressly one of fact and degree. The scale and nature of the 2023 works mattered, as did the installation of a membrane, the application of crushed concrete and the extent of the area affected.

A genuinely minor repair to an existing lawful or immune surface may present a different planning question. Equally, replacing or substantially reconstructing an old surface can create new operational development even where the purpose and broad location remain unchanged.

Nor does the decision prove that no hardstanding existed in 1987. The narrower conclusion was that the appellant had not discharged the burden of proving that the development described in the LDC application was lawful at the application date.

That distinction matters because an unsuccessful certificate application does not necessarily settle every possible factual or legal case that could be advanced about a site. The Inspector noted the Planning Practice Guidance point that refusal for insufficient or imprecise information does not prevent a later application if better evidence can be produced.

The practical lesson for immunity claims

For me, the useful lesson is to resist starting an immunity case with the question “how long has something been here?” The better first question is “what exactly is the development whose lawfulness we need to prove?”

Once that is defined, the evidence should track the physical development through time. Historic aerial photographs, dated photographs, invoices, contractor records, statutory declarations and site plans can all help, but they need to tell a consistent story.

Where substantial later works have taken place, they need their own analysis. Calling them repairs, maintenance or a top up does not decide the planning question.

The Waltham Abbey hardstanding LDC appeal, APP/J1535/X/25/3363028, was dismissed because the evidence did not prove the claimed historic development and because the 2023 works were themselves treated as fresh operational development.

The pre-25th April 2024 works could still fall within the transitional four-year period, but the 2023 operation had not accrued four years of immunity by the application date. That, together with the evidential weaknesses, defeated this hardstanding LDC claim.