Trusted chartered surveyors covering Treorchy, Treherbert and the Rhondda Valley communities of CF42








CF42 covers the upper Rhondda Fawr communities including Treorchy and Treherbert. Average house prices here sit at approximately £144,598, with terraced homes - which make up the majority of property sales in the area - averaging around £128,437. With prices up 12% on the previous year, buyers are entering a market where getting a professional survey before purchasing is a sensible investment.
The housing stock in CF42 is predominantly Victorian and Edwardian stone-built terraced property. These homes have character and solid construction, but age brings challenges. Damp, roof deterioration, outdated services, and the legacy of the area's coal mining history are all factors that our RICS Level 2 Survey is designed to identify and report on. We give buyers the evidence they need to make an informed decision.
Our chartered surveyors produce a clear, structured report using the RICS traffic light system. Every element of the property receives a Condition Rating - green for no current repair needed, amber for defects requiring attention, and red for urgent issues. The report includes repair recommendations and flags where specialist investigation is warranted, so buyers know exactly what they are taking on.

£144,598
Average House Price
£128,437
Terraced Average
Rightmove, last 12 months
£142,611
Semi-Detached Average
Rightmove, last 12 months
£289,041
Detached Average
Rightmove, last 12 months
121
Annual Sales
Residential property transactions, last 12 months
+26.99%
5-Year Price Growth
Property Solvers, HM Land Registry data
The majority of properties sold in CF42 are terraced homes, and a significant proportion of these are Victorian stone-built construction. These properties were built in the late 19th and early 20th century to house mining and industrial workers in the Rhondda Valley. They are typically constructed with solid stone walls - thicker and more substantial than later brick-built cavity wall properties - and often feature slate roofs, suspended timber floors, and traditional fireplaces.
Stone-built Victorian terraces have distinct characteristics that our inspectors examine carefully. Solid walls can be vulnerable to penetrating damp, particularly where pointing has deteriorated or render has cracked. The slate roofs common in this area are durable but require ongoing maintenance - individual slates slip and crack over time, and the nail fixings can corrode on older roofs. Leadwork at flashings, valleys and chimney abutments can fail and allow water ingress at critical junctions.
Suspended timber ground floors in properties of this age can harbour rot and woodworm where ventilation has been compromised or where ground moisture has increased. We check accessible subfloor voids and examine floorboards for evidence of timber defects. Older electrics - where original wiring may still be in use - and ageing plumbing systems are also common findings in the Victorian housing stock of CF42.
CF42 sits within Rhondda Cynon Taf, one of the most historically significant coal mining areas in South Wales. Structures including Tower Colliery and the Great Western Colliery are recognised as historically significant, and the legacy of deep and drift mining extends beneath significant portions of the valley. Ground conditions affected by historic mine workings can present a long-term subsidence risk, even for properties built well after the mines closed.
Mining-related ground instability can cause differential settlement in foundations, cracking in walls and ceilings, distortion at door and window openings, and uneven floors. These symptoms can develop slowly over time and may not be immediately obvious to an untrained eye. Our inspectors examine properties for the characteristic patterns of movement associated with ground instability and will flag any concerns in the survey report.
A RICS Level 2 Survey is a visual inspection and cannot determine the presence or absence of mine workings beneath the property. For all CF42 buyers, we recommend obtaining a Coal Authority mining report (Con29M) as part of the conveyancing process. This report identifies recorded mine workings relative to the property and should be reviewed alongside the survey findings.

CF42 occupies the upper Rhondda Fawr valley, and the River Rhondda flows through the area. Properties close to the river and its tributaries may face a flood risk that buyers need to be aware of before committing to a purchase. Surface water flooding is also a risk in valley communities where heavy rainfall collects in low-lying areas and drainage systems can be overwhelmed. Our survey documents any visible signs of historic water ingress, damp staining, or drainage issues observed during inspection. We strongly recommend that CF42 buyers check Natural Resources Wales flood maps using their specific property address before exchanging contracts.
Source: HM Land Registry data via Property Solvers, last 12 months. Band distribution based on publicly reported data for CF42.
Rhondda Cynon Taf contains almost 360 listed buildings, and several are located within or close to CF42. Properties listed in and around Treherbert and Treorchy include Bethany Chapel (Grade II), Tynewydd Farm House (Grade II*), Ainon Welsh Baptist Chapel (Grade II), the Church of St George (Grade II), Park and Dare Workmen's Institute and Hall (Grade II*), and the Engine House and Fan House at Tower Colliery (Grade II).
Buying a listed building brings additional responsibilities. Owners are required to maintain and repair listed structures using appropriate materials and methods, and any alterations that affect the character of the building require Listed Building Consent from the local authority. Standard building materials used in modern repairs are often unsuitable for listed properties - lime mortar, traditional slates, and period-appropriate finishes may be required.
For properties with listed status, a standard RICS Level 2 Survey may not provide sufficient depth of analysis. We generally recommend a RICS Level 3 Building Survey for listed properties, given the complexity of traditional construction and the specialist knowledge required to properly assess its condition. If you are purchasing a property that has been significantly altered over the years, we can advise on the most appropriate survey level when you request your quote.
Our chartered surveyors hold MRICS or FRICS qualifications and are regulated by the Royal Institution of Chartered Surveyors. We carry out surveys across CF42 and the wider Rhondda Valley, giving us first-hand knowledge of the local housing stock, construction methods, and the specific defects that arise in this area. That experience shapes the way we inspect and report on properties in Treorchy, Treherbert and the surrounding communities.
We understand that the stone-built terraces of the upper Rhondda require a different inspection approach than a modern semi-detached or a post-war bungalow. The age and construction type of your property determines which elements require the closest scrutiny, and our inspectors apply that knowledge throughout. We will not miss the typical defects in CF42's Victorian housing stock.
After you receive your report, your surveyor is available for a follow-up call to talk through the findings. If you want to understand a Condition Rating 3, get guidance on whether a specialist report is worthwhile, or discuss what particular findings mean for your purchase, we are here to help you navigate those decisions.

Our surveyors can advise on which survey level is most appropriate for your specific CF42 property when you request a quote.
Enter the property address, type, approximate value, and any specific concerns you have. You will receive an instant survey fee tailored to your property.
Choose from available appointment slots in CF42 and the surrounding Rhondda Valley. We cover Treorchy, Treherbert, and adjacent communities.
Your RICS-accredited surveyor carries out a thorough visual inspection of the property, typically taking two to four hours for a standard CF42 terraced home.
The written report is delivered securely to your inbox within five to ten working days of the inspection. It covers every major element with condition ratings, photographs, and recommendations.
After receiving the report, you can book a call with your surveyor to discuss the findings, understand any condition ratings, and decide on any follow-up actions.
The inspection covers every accessible element of the building's structure and fabric. For a typical CF42 Victorian terrace, this includes the stone or brick external walls and pointing condition, the slate roof covering and its flashings, rainwater goods, windows and doors. We inspect all internal rooms covering walls, ceilings, floors, chimney breasts, and built-in joinery.
We access the roof space where it is safe to do so, checking the roof structure, insulation, and any signs of water ingress or timber defects. The damp and timber assessment covers all accessible areas - particularly important in a stone terrace where damp can affect walls, floors, and structural timbers. We check accessible services and note any concerns with heating, plumbing, electrics, and drainage.

Nationally, a RICS Level 2 Survey costs around £455 on average, with a typical range of £400 to £1,000 depending on the property. In CF42, where the majority of sales fall below £134,000, many buyers will find survey fees at the lower end of the national scale. A standard two-bedroom terraced property in Treorchy or Treherbert would typically attract a survey fee towards the £400 to £550 range.
Several factors can increase the survey fee for a CF42 property. Older pre-1900 properties can add 20 to 40 percent to the cost due to the additional time required to inspect traditional construction properly. Non-standard construction, complex extensions, or unusual features may also affect pricing. Listed buildings require additional specialist expertise and typically incur a premium of £150 to £400 on top of the standard survey fee.
Use our online quote tool to get an accurate fee for your specific property. Enter the address, property type, and approximate market value, and we will provide an instant quote. The quote is fixed - there are no hidden costs and no surprises when the invoice arrives.
Survey fees in CF42 typically start from around £400 for smaller terraced properties, rising to £600 or more for larger or older homes. Given that the majority of CF42 property sales fall between £102,000 and £134,000, most buyers will find their survey fee sits towards the lower end of the national range. Pre-1900 stone terraces may attract a premium of 20 to 40 percent due to the additional time required for a thorough inspection. Use our quote tool for an instant, fixed price tailored to your specific property.
Yes. CF42 is located within Rhondda Cynon Taf, a county borough with a significant coal mining history. The area is home to listed industrial heritage structures including the Engine House and Fan House at Tower Colliery. Historic mine workings can leave legacy ground instability that affects properties well after extraction has ceased. The Level 2 Survey will note any visible signs of ground movement or structural distress, but a visual inspection cannot confirm whether mine workings exist beneath the property. We recommend that all CF42 buyers also obtain a Coal Authority mining report (Con29M) as part of conveyancing.
A typical two or three bedroom terraced property in Treorchy or Treherbert takes around two to three hours to inspect on site. Larger or more complex properties may take three to four hours. After the inspection, the written report is prepared and delivered within five to ten working days. You will receive a link to access the report securely online, and your surveyor is available for a follow-up call to discuss the findings.
For a standard Victorian terrace in reasonable condition, a RICS Level 2 Survey is generally appropriate. If the property is in poor condition, has been significantly altered, or is a listed building, a RICS Level 3 Building Survey provides a more detailed analysis of defects, their causes, and the options for repair. The Level 3 survey is particularly valuable for CF42 properties with listed status, given the specialist knowledge required to properly assess traditional stone construction and period features. Our team can advise on the most appropriate survey level when you request a quote.
CF42 occupies the upper Rhondda Fawr valley, with the River Rhondda flowing through the area. Properties close to the river and its tributaries may face river flooding risk. Surface water flooding is also a concern in valley communities during heavy rainfall events. We document any visible signs of water ingress, damp staining associated with flooding, or drainage deficiencies in the survey report. For a definitive flood risk assessment, buyers should check Natural Resources Wales flood maps using the specific property address before proceeding with a purchase.
Yes. The CF42 area and surrounding Rhondda Cynon Taf contains numerous listed buildings, with Grade II and Grade II* designations found within or close to the postcode. These include chapels, churches, and industrial heritage structures. For properties with listed status, the standard Level 2 Survey may not provide sufficient depth of analysis for the traditional construction methods and materials involved. A Level 3 Building Survey is generally more appropriate for listed buildings, and we can confirm the recommended approach when you request a quote.
Yes. The survey report provides a professional, documented assessment of the property's condition. Where our inspectors identify defects requiring significant expenditure - such as roof repairs, damp treatment, rewiring, or structural investigation - you can use those findings to seek a price reduction or request that the seller carries out remedial works before completion. This negotiating position is backed by professional evidence rather than personal opinion, which tends to carry more weight in negotiations. Our surveyors are available to discuss the findings and support your decision-making.
Our full range of property surveys and assessments covering the Rhondda Valley
From £600
Recommended for older, listed, or complex CF42 properties requiring detailed structural analysis
From £60
Energy Performance Certificate for CF42 properties - legally required for all sales and lettings
From £250
Asbestos identification and management survey for pre-2000 CF42 properties where ACMs may be present
From £150
Specialist inspection of CF42 slate roofs where condition, slippage, or leadwork is a concern
From £150
EICR for CF42 Victorian terraces with older wiring requiring a safety assessment
From £200
Drone-assisted roof inspection for CF42 properties where traditional access is difficult or costly
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Trusted chartered surveyors covering Treorchy, Treherbert and the Rhondda Valley communities of CF42
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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.