Thatched roof surveys: what’s included in a RICS report
A thatched-roof cottage is perhaps one of the ultimate endearing properties in the UK. It’s the associated appeal of a sweeping countryside view and the feeling that people lived like this for centuries. A buyer becomes part of our country’s rich history, but with all the modern amenities they could possibly need.
However, even if a buyer has cash to spare, it’s essential to be careful. With all that charm can come unique risks, responsibilities, maintenance considerations and planning permission headaches. As an agent or adviser, you want to make sure your client minimises that risk.
That’s why a RICS-accredited survey from a professional familiar with thatched properties is so important. At GB Home Surveys, we’ve worked across Gloucestershire, Worcestershire, the Cotswolds and beyond, helping advisers and their clients to understand the true condition and value of thatched homes.
Here’s what you can expect from a detailed thatched roof survey.
The excitement of thatched roofs in Worcestershire
Stepping under a thatched roof is like stepping back in time. These roofs are among the oldest methods of building protection in the UK, with regional origins dating back to medieval times. Once made using traditional wheat, rye or heather, builders now typically use water reed or long-straw wheat.
A thatched roof is certainly aesthetically charming, but it’s also a vital architectural feature for the property’s thermal performance. A thatched roof is highly effective at retaining heat in winter compared to homes of the same era.
But while beautiful, thatched roofs are living structures. They respond to weather, wildlife and, of course, time. Unlike modern tiles or slates, they need care, attention and a certain amount of increasingly rare expertise to remain effective.
What a surveyor examines in the thatched roof
As mentioned, a thatched roof isn’t just there for decoration. It’s a structural component, and it comes with its own quirks and risks. When you instruct a RICS Level 3 survey from a chartered surveyor, they’ll take special measures to check various aspects of the roof, including:
- Ridge condition – the top of the roof is often the first part to deteriorate, and a worn ridge can let in water.
- Thatch depth and compaction – insufficient thickness or uneven density may indicate poor maintenance or potential leaks.
- Signs of decay or pest damage – birds, rodents and insects can compromise the thatch or supporting timber. Mice, rats and thatch-eating birds (like crows) are particular culprits to be aware of.
- Structural timber condition – rafters, beams and trusses may have been exposed to moisture or heat over decades.
- Water penetration and damp – leaks can lead to hidden damp, rot and secondary damage inside the property.
- Fire safety measures – including fire retardants, fire breaks and any gaps that increase risk. Fire safety is paramount in thatched roofs. Not all older thatched roofs have fire retardants or fire breaks; some require retrofitting.
At GB Home Surveys, we also offer optional drone surveys. These offer a unique vantage point for surveyors to be able to analyse every aspect of a thatched roof. Get in touch with us for more information.
Surrounding property and drainage
These ‘natural’ roofs are susceptible to their environment. As a result, surveyors will also consider:
- Drainage and water runoff – water pooling near walls or foundations can exacerbate damp problems, affecting both the structure and the thatch above.
- Vegetation and overhanging trees – old leaves or moss can trap moisture against the roof, locking it into the thatch.
- Soil type and stability – if we find any signs of severe subsidence, such as extreme cracking in the walls, this could be impacting the roof’s structures.
- Proximity of other structures – thatched roofs need airflow and sunlight to keep that moisture away. Surveyors check adjacent buildings and extensions to make sure there’s enough room for the material to breathe.
- Local climate exposure – properties on windy hillsides or in frost-prone areas are much more likely to experience faster wear on ridge and eaves thatching.
Additional features and compliance for thatched roofs
Many thatched homes are listed or sit in conservation areas, which adds another layer of legal complexity. Your chartered surveyor will use available documentation and information from the local and regional councils to check the following:
- Planning permissions and alterations – a chartered surveyor uses all available documentation to ensure that past work adhered to local conservation rules.
- Legal restrictions on repairs or replacements – some repairs to thatched roofs must be made using traditional materials and techniques.
- Chimneys and flues – fire isn’t something to take any chances on in a thatched-roof cottage. We’ll inspect everything. This is essential for fire safety and often closely regulated in historic properties.
- Insurance considerations – thatched homes can have higher premiums or stricter conditions due to their risk profile. Even if your client has the funds, the more information they have beforehand, the better.
Get a thatched roof survey from GB Home Surveys
A detailed survey is only useful if your client and their other advisers understand the findings. At GB Home Surveys, we produce easy-to-understand reports, filled with notes, photographs and urgency markers. Plus, we provide one-on-one phone and email contact after delivering the report, so lawyers, agents and buyers can ask questions about urgent repairs, long-term maintenance, planning requirements or anything else about which you need clarification.
We’ll take the time to explain any concerns in plain English, helping your client weigh the risks, costs and next steps. That level of communication is invaluable for high-value purchases, especially when historic materials and specialist maintenance are involved.
So, if you’re advising a client on the purchase of a thatched property, a RICS Home Survey Level 3 tailored to thatch is the safest way to proceed. Contact GB Home Surveys on 03333 600 685 or contact@gbhomesurveys.co.uk to arrange a survey and give your client the clarity they need before committing to a truly unique home.
