How a Veranda Can Affect Your House Sale — and How to Make Sure It Doesn't

Most homeowners who have a veranda installed think about it in terms of what it adds to their daily life — and rightly so. But it's also worth thinking about it as a fixed addition to your property that will appear on a surveyor's report when you eventually sell. A veranda that was installed correctly and documented properly is a straightforward positive when it comes to sale. One that was installed without appropriate consents or documentation can become an unexpected complication at a moment when you really don't need one.

This doesn't need to be a source of anxiety. The requirements are clear and manageable, and most of them are simply a matter of having the right paperwork to hand. Here's what you need to know.

What a Buyer's Surveyor Will Look At

When a buyer commissions a survey — and any buyer using a mortgage will have at least a basic valuation, while many commission a full building survey — the surveyor will note any additions to the property that are large enough to be considered structural. A veranda of any significant size, a glass room, or a structure that is attached to the main building will fall into this category.

The surveyor is not necessarily looking to raise problems. Their job is to give the buyer an accurate picture of the property. If they see a substantial structure attached to the house, they will note it and indicate whether appropriate consents and documentation appear to be in place. If those documents aren't available, the surveyor will flag it as a point that needs clarification — and that flag becomes a requisition from the buyer's solicitor.

Planning Permission or Permitted Development

The first question is whether your veranda required planning permission or whether it was built under permitted development rights. Most residential verandas in England fall within permitted development, which means no formal planning application was needed — but the conditions that allow permitted development to apply do need to be met, and it's worth confirming this rather than assuming.

If your veranda did require planning permission — because it exceeds the size limits for permitted development, or because your property is in a conservation area, or for any other reason — you should have a decision notice from your local planning authority confirming approval. If planning permission was required and not obtained, this needs to be addressed before a sale, either by applying retrospectively or by obtaining indemnity insurance.

Building Regulations

Whether building regulations approval was required depends on the size and type of structure. A small open veranda used purely as a garden shelter is likely to fall within an exemption. A larger enclosed glass room that effectively creates additional habitable space probably does not. The rules involve factors including total floor area, whether the structure is attached to the house, and how it is used.

If building regulations approval was required and you have a completion certificate from your local building control authority, keep it safely with your property documents. This is the cleanest possible evidence that the structure was built to a compliant standard and inspected by an independent authority.

If building regulations approval was required but you don't have a completion certificate — either because your installer didn't obtain one or because you weren't aware it was needed — the options are a retrospective building regulations application, a structural engineer's assessment of the as-built structure, or indemnity insurance. Each has different implications for cost and timescale, and it's better to assess this before a sale is in progress rather than after.

Structural Engineer Calculations

Even where building regulations don't formally require a structural engineer's sign-off, having structural calculations for your veranda is a valuable document. It confirms that the structure was designed to carry the loads it will experience — snow, wind, its own weight — and that the fixings and foundations are adequate for the site conditions.

For larger structures or those in exposed locations, a structural engineer's assessment is something we consider standard practice. It protects the homeowner, it provides clear documentation for any future surveyor, and it means there are no unanswered questions about the structural adequacy of the installation.

What to Do Right Now

If you have a veranda already installed and you're not sure what documentation you have, the time to check is now — not when you're preparing to sell. Go through your property documents and look for: any planning permission decision notice or written confirmation that permitted development applied; a building regulations completion certificate if the structure required approval; any structural calculations or engineer's report provided by your installer; and the original product specifications and installation documentation from whoever built it.

If some of these are missing, it's worth finding out what would be needed to address the gaps while there is no time pressure. A structural engineer's assessment on an existing structure, for example, is a manageable process when you have time — and a much more stressful one when a buyer's solicitor is chasing for answers and a completion date is looming.

How Roma Verandas Approaches Documentation

We provide our customers with a full documentation pack on completion of every installation. This includes confirmation of the planning position for your specific project, building regulations documentation where applicable, structural calculations where relevant to the project, product certifications and specifications for the structure installed, and installation records.

Our view is that this documentation is part of what you're paying for when you invest in a veranda. The structure itself is one part of the investment; the paperwork that confirms it was done correctly is the other part, and it's the part that protects you at every point in the future — whether you're dealing with an insurance query, a warranty claim, or a house sale.

If you'd like to discuss a new installation and understand exactly what documentation you'll receive, or if you have an existing veranda and want to talk through what you have and whether there are any gaps, we're happy to help. Just get in touch.