Detailed structural survey for Brynmawr, Nantyglo and Blaenau Gwent properties








Our inspectors provide detailed RICS Level 3 Building Surveys across the NP23 postcode, covering Brynmawr, Nantyglo, Blaina and the surrounding Blaenau Gwent areas. This is our most comprehensive survey option, offering a thorough assessment of your property's condition whether you are purchasing a period terraced house in Brynmawr or a detached family home near the River Clydach. We combine technical expertise with local knowledge to deliver reports that help you understand exactly what you are buying.
The NP23 area presents unique considerations for property buyers. With a significant proportion of housing stock dating from the industrial era, often built for mining communities, our inspectors are experienced in identifying defects common to older properties in this region. From assessing potential mining subsidence risks to evaluating traditional stone and brick construction, we provide the detailed information you need to make an informed purchase decision. Our team understands the specific construction methods used in this part of South Wales and can identify issues that a generic surveyor might miss.
A RICS Level 3 Survey is particularly valuable in NP23 because the housing here differs substantially from newer-build areas. The majority of properties were constructed before modern building regulations existed, meaning they may have hidden defects or aging systems that require specialist assessment. Whether you are buying a Victorian terrace on Commercial Street in Brynmawr or a post-war semi-detached in Nantyglo, our detailed survey gives you the confidence to proceed with your purchase or negotiate effectively based on factual evidence.

£220,958
Average House Price
£304,394
Detached Properties
£206,857
Semi-Detached Properties
£165,567
Terraced Properties
£108,800
Flats
100
Properties Sold (12 months)
-2.00%
12-Month Price Change
NP23 homes have their own quirks, which is why a RICS Level 3 Survey is so useful here. Terraced properties account for 40.5% of all homes, semi-detached houses make up 33.7%, and detached properties plus flats fill out the rest. Much of the stock dates from before 1945, built to serve the coal mining and ironworking communities that shaped the area. After decades of occupation, weather and, in some cases, poor maintenance, these properties really do benefit from a proper professional check.
We regularly inspect homes put together with traditional methods and local materials. Old Red Sandstone, brick and render are common, and slate or tile roofs are seen right across the area. Those older approaches were often solid, but they need an experienced eye to spot defects that have built up over many years. Our surveyors know how traditional solid wall construction behaves in the local climate, and they can separate surface blemishes from more serious structural worries.
Under NP23, the geology deserves close attention. Carboniferous rock formations run through the area, including coal measures, sandstones and shales. In some places there are clay-rich superficial deposits, which can trigger shrink-swell movement and affect foundations. Most importantly, Blaenau Gwent’s long history of coal mining means mining subsidence is still a possible issue, and our surveyors specifically look for it. Properties in Nantyglo and Blaina, where mining was especially intense, need careful checking for any sign of ground movement.
In NP23, the defects we most often come across include penetrating damp from porous external walls, rotting timber in windows and floors, tired roofs with missing or slipped slates, and structural movement linked to either mining activity or foundation subsidence on clay soils. Many homes also have old electrical systems and plumbing that may fall short of current regulations. Our Level 3 Survey looks at all of this in detail, so you know exactly what you are buying before you go ahead.
Source: Plumplot 2024
Choose the property type and the appointment date you want. We’ll confirm the booking within hours and send over preparation instructions so our inspector can access every part of the property. Our online booking system shows available slots across the NP23 area, and if you would rather talk things through, our team is ready by phone.
Our RICS-qualified surveyor then visits your NP23 property and carries out a detailed visual inspection, usually lasting 2-4 hours depending on the size of the place. They check all accessible areas, including roofs, walls, floors, windows and foundations, and take photographs and notes on every significant point. In Brynmawr or Nantyglo, where histories can be complicated, our inspectors look especially closely for mining subsidence, structural movement and the state of historic building materials.
After 3-5 working days, you receive your full RICS Level 3 Survey report. It sets out condition ratings from "good" to "urgent", explains defects clearly with location references, ranks repair recommendations in order of priority, and includes our inspector’s professional view on likely maintenance costs. There is also a rebuild cost assessment, which is important for insurance.
If anything in the report needs a fuller explanation, our team can talk you through it in detail. We can also arrange a valuation update or reinstatement cost assessment if your mortgage or insurance asks for one. For many NP23 buyers, the report is useful in negotiations with sellers, either to ask for repairs before completion or to revisit the purchase price in light of the work needed.
Coal mining is part of NP23’s recorded history, and some properties in the area may sit on or close to former mine workings. A RICS Level 3 Survey looks for signs that can point to mining subsidence, such as cracking patterns, doors and windows sticking, and uneven floor levels. In higher-risk locations, we advise thinking about a specific mining search as part of your due diligence. Our surveyors know the warning signs and can say whether specialist follow-up is sensible.
Brynmawr town centre has designated Conservation Area status, so many properties there come under tighter planning controls. The area also includes listed buildings, among them the Grade II listed Market Hall, which need particular care when we assess condition and renovation requirements. If you are buying within the conservation area or a listed building, our surveyors understand the extra issues involved and can spot where previous works may have gone ahead without the right consents.
We understand what it means to buy period property in a conservation area. Our inspectors look at how historic building methods affect present-day condition, note where original features survive, and flag any alterations that may need listed building consent. That sort of detail helps you plan for the cost and practical demands of keeping a period home in NP23. Many Victorian and Edwardian houses in Brynmawr and Nantyglo still have sash windows, decorative plasterwork and traditional fireplaces, attractive features, but ones that need regular upkeep.
If you are looking at a property that needs renovation or conversion, our Level 3 Survey gives architects and building contractors the structural detail they need for accurate quotes and planning submissions. The report also acts as a thorough record of current condition, which is essential for any future listed building consent applications. We can advise on how feasible proposed alterations are and point out any structural limitations that could affect the work you have in mind.
Our team of RICS-qualified surveyors brings plenty of experience from across the NP23 area. From Victorian terraces in Brynmawr to post-war semi-detached houses in Nantyglo, we know the local building methods and the defects that commonly show up in this part of South Wales. Every inspector holds professional indemnity insurance and works to RICS codes of practice. We also use the latest reporting technology, so your Level 3 Survey report is clear, detailed and sent promptly. When you book with Homemove, you are booking quality and expertise backed by a trusted professional body.

Your RICS Level 3 Survey report is laid out to give you clear, practical information about the property’s condition. We use a traffic light rating system, green means no urgent action is needed, amber highlights defects that need attention but are not urgent, and red marks problems that need immediate attention. Each part of the property is covered in detail, with our inspector’s professional opinion on the cause of any defects and how they are likely to develop.
For NP23 homes, the report has specific sections on mining subsidence risk, foundation conditions and the condition of traditional building elements. Where we can do so reliably, we give estimated repair costs, although for more complex work we usually suggest getting quotes from local contractors who understand the demands of traditional buildings in this area. The report also gives practical maintenance guidance, helping you protect your investment over the long term.
One of the main advantages of the Level 3 Survey is the rebuild cost assessment, which works out what it would cost to rebuild the property if it were destroyed. This figure matters for insurance and is often needed by mortgage lenders. Our surveyors base it on the property’s size, construction type and local building costs, so you have suitable cover in place from day one.
A Level 3 Survey goes much further when it comes to structure and condition. A Level 2 HomeBuyer Report is mainly concerned with matters affecting value and mortgageability, while the Level 3 covers all accessible elements in detail, repair and maintenance recommendations, rebuild cost assessments and guidance on renovation work. For older NP23 properties with complex histories, including mining activity and traditional construction, that extra depth is invaluable. It also includes the grounds and outbuildings, which the Level 2 does not normally cover.
In NP23, a RICS Level 3 Survey usually costs between £600 and £1,500 or more, depending on the property’s size, type and complexity. A three-bedroom terraced house in Brynmawr will cost less than a large detached property in Nantyglo, simply because of the time needed for inspection and report writing. If a property needs extra specialist assessment, for example in former mining areas or where construction is unusual, there may be additional fees. We provide fixed quotes based on your specific property details, with no hidden costs.
New build properties normally have fewer defects than older homes, but a Level 3 Survey can still pick up building defects, snagging issues and whether the property meets current building regulations. That said, no active new-build developments were confirmed within the NP23 postcode area at the time of research, so most purchases here will involve existing properties, where a Level 3 Survey is strongly recommended. Even homes built in the 1980s or 1990s can have hidden defects, so a detailed survey is still worthwhile.
The on-site inspection usually takes between 2-4 hours, depending on the property’s size and complexity. A large detached house with several rooms and outbuildings will naturally take longer than a terraced home. Your report is then delivered within 3-5 working days of the inspection, though we can often speed things up if you are working to a tight deadline. For especially complex properties or those needing extra specialist assessment, it may take a little longer.
Yes, our surveyors visually check for signs of mining subsidence, including cracking patterns, especially diagonal cracks near windows and doors, doors and windows that stick or do not close properly, and uneven floor levels that may point to ground movement. A full mining risk assessment still needs separate ground investigation and possibly a mining search, but the Level 3 Survey gives an initial view of any issues that may need specialist follow-up. In NP23, with its documented mining history, that visual assessment is a vital part of the survey.
If the survey uncovers serious defects, your report will set out the repairs in priority order, give estimated costs where possible, and advise whether you should commission specialist investigations such as a structural engineer’s report or a timber and damp survey. You can then use that information to negotiate with the seller, ask for repairs before completion, or, in some cases, walk away if the problems are more serious than expected. Many NP23 buyers have used our reports to secure sizeable reductions in the purchase price to cover necessary repairs.
Blaenau Gwent, including NP23, has a higher share of older properties than the national average, and many were built before modern building regulations. Because coal mining has left such a strong legacy, some homes may have structural problems that a quick inspection would never pick up. Our surveyors have direct experience of the construction types found locally, including traditional stone walls, slate roofing and the defects that often affect older homes in former mining areas. That local knowledge means we can spot issues a general surveyor unfamiliar with the area might miss.
We can usually arrange a survey appointment within a few days of your booking, subject to availability. Our surveyors work across the NP23 area regularly, so we are normally able to fit in tight timeframes if you are working to a deadline. Just send us the property address and your preferred dates when asking for a quote, and our team will confirm the available appointment times quickly. Morning and afternoon slots are available to suit your schedule.
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Detailed structural survey for Brynmawr, Nantyglo and Blaenau Gwent properties
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Homemove is a trading name of HM Haus Group Ltd (Company No. 13873779, registered in England & Wales). Homemove Mortgages Ltd (Company No. 15947693) is an Appointed Representative of TMG Direct Limited, trading as TMG Mortgage Network, which is authorised and regulated by the Financial Conduct Authority (FRN 786245). Homemove Mortgages Ltd is entered on the FCA Register as an Appointed Representative (FRN 1022429). You can check registrations at NewRegister or by calling 0800 111 6768.