Competing Boundary Surveyors and the General Boundaries Rule: Cunningham v Holehouse and What Wimbledon Homeowners Should Know Before a Determined Boundary Application, November 2026

A measurement of 15 feet written into a deed looks like the firmest evidence a boundary dispute could have. In Cunningham v Holehouse it was not enough. The applicants had an expert plan, a figure in the title deeds and a formal application to HM Land Registry, and they still lost and were ordered to pay their neighbours' costs. The case is a useful warning for anyone thinking of instructing a determined boundary application surveyor.

Key Takeaways

• In Cunningham v Holehouse [2026] UKFTT 771, the First-tier Tribunal cancelled a determined boundary application and ordered the applicants to pay costs.
• Each side had its own expert, and the experts disagreed.
• A plan marked "for identification purposes only" meant the measurement on it was a guide, not a fixed line.
• Physical features on the ground when the land was first divided carried great weight.
• A determined boundary application is all or nothing: if the line applied for is not the right line, the application fails.

The general boundaries rule in plain terms

Almost every registered title in England and Wales shows general boundaries only. The red line on the title plan shows roughly where the boundary is. It does not show the exact legal line.

There are two ways to fix an exact line on the register:

• A boundary agreement, made between the neighbours and registered.
• A determined boundary, applied for by one owner with a detailed plan. The neighbours are notified. If they object and the objection cannot be settled, the matter goes to the First-tier Tribunal.

What happened in Cunningham v Holehouse

The case was reported in 2026 by the law firm Charles Russell Speechlys.

Mr and Mrs Cunningham applied for a determined boundary on a line drawn by their expert. Their neighbours, the Holehouses, objected.

The boundary had been created by a conveyance in 1987. The plan on that conveyance was wrong, and it was corrected by a deed of rectification in 2000. The plan on the deed was treated as the conveyance plan. It carried the words "for identification purposes only", and it gave a measurement of 15 feet between two points.

The Cunninghams said the 15 feet fixed the boundary. The Holehouses said the measurement could not be applied with that precision, and pointed to a shed and carport that had stood on the land.

The evidence

• Two experts. One for each side, reaching different conclusions.
• Aerial photographs showing the shed, carport and fence over the years.
• Witness evidence on whether those features were there in 1987.

The decision

The Tribunal held that:

1. The 15-foot measurement was indicative only. The words "for identification purposes only" showed the plan was not meant to be exact.
2. The shed and carport were there when the land was conveyed. A reasonable person would place the boundary along the strip beyond them, not through the middle of them.
3. The fence was probably put up after the conveyance, which contained a covenant to erect one. It was meant to mark the boundary. A hedge replaced it in 2002.

The line the Cunninghams applied for did not match those findings. The application was cancelled, the title stayed subject to the general boundaries rule, and the Cunninghams were ordered to pay the Holehouses' costs. In land registration cases before the Tribunal, the losing party usually pays.

The Tribunal also encouraged the parties to settle.

Why two competent surveyors can disagree

Clients are often surprised that two qualified surveyors, measuring the same gardens, produce different lines. The explanation is that a boundary survey involves judgment at several points.

Question	Why opinions differ
Which document governs?	The first conveyance dividing the land usually matters most, but later deeds can alter it
How accurate is the old plan?	Small-scale plans and thick lines can hide errors of a foot or more on the ground
Where do you measure from?	Buildings are altered and fences move. The starting point may no longer exist
What was on the ground then?	Features present at the date of the conveyance help interpret it. Later features do not

A surveyor who relies on the paper measurement, and one who relies on the features on the ground, can both be acting properly. The tribunal decides which approach fits the conveyance.

Expert evidence: what the Tribunal expects from a determined boundary application surveyor

A boundary surveyor in a tribunal or court case is an expert witness. The duty is to the tribunal, not the client. In court proceedings that duty is set by CPR Part 35, and the Tribunal expects the same independence.

A sound expert boundary report will:

• Identify the conveyance that created the boundary and interpret its words and plan.
• Say whether the plan is a guide only or was meant to be precise.
• Survey the features on the ground accurately and overlay them on the historic plans.
• Use dated aerial and ground photographs and historic maps to establish what existed when.
• Set out alternative lines if the facts are disputed, with reasons for the preferred line.

Two steps reduce the risk of a Cunningham result:

• A joint expert. One surveyor instructed by both neighbours removes the contest between experts.
• An experts' meeting. Where there are two surveyors, a joint statement of what is agreed and what is not often narrows the dispute to a few inches and one question of interpretation.

The RICS expert witness standard, 5th edition, takes effect on 30 November 2026 and requires experts to set out assumptions and alternative conclusions.

A checklist for Wimbledon homeowners

Boundary friction in Wimbledon, Raynes Park and Southfields tends to arise at side returns, shared rear accessways and replaced garden fences behind Victorian and Edwardian terraces. Before applying for a determined boundary:

1. Get the original conveyance. The deed that first divided the two plots, not just the current title plan.
2. Read the plan's wording. "For identification purposes only" weakens any measurement on it.
3. Collect photographs. Old family photos, sales particulars and aerial images showing fences, sheds and walls.
4. Ask the surveyor the hard question. What line would the other side's surveyor draw, and why?
5. Offer a joint survey. It is cheaper than a tribunal hearing and often ends the dispute.
6. Consider a boundary agreement. If the neighbours can agree a line, it can be registered without a contested application.
7. Weigh the costs risk. A failed application can mean paying both sides' costs.

Frequently Asked Questions

Does my title plan show my exact boundary?

No. Unless the boundary has been determined or an agreement registered, the title plan shows the general position only.

Is a measurement in the deeds conclusive?

Not always. If the plan is for identification only, the measurement may be treated as a guide and read alongside features on the ground.

Who pays if a determined boundary application fails?

Usually the unsuccessful party pays the successful party's costs.

Do I need a surveyor for a determined boundary application?

Yes. The application needs a precise plan, and if the application is opposed the surveyor's reasoning will be tested as expert evidence.

Conclusion

Cunningham v Holehouse shows that a determined boundary application is only as strong as the evidence behind the line applied for. A deed measurement and an expert plan will not succeed if the conveyance and the features on the ground point elsewhere. Test the evidence first, and try agreement before litigation.

Wimbledon Surveyors prepares boundary surveys and determined boundary plans, and acts as expert witness and joint expert in boundary disputes across south-west London.