Expert homebuyer reports for St Mellons, Llanrumney, Rumney and Old St Mellons








The CF3 postcode spans a broad area of east Cardiff and its suburbs, covering St Mellons, Llanrumney, Rumney, and the historic village of Old St Mellons. With an average house price of £259,958, buying in CF3 is a significant investment - and our RICS Level 2 Survey gives you a thorough, independent assessment of the property's condition before you exchange contracts. Our chartered surveyors understand the mix of housing that makes up this part of Cardiff, from post-war semi-detached estates to older properties in Old St Mellons and the growing number of new build developments across the area.
A RICS Level 2 Survey - also known as a Homebuyer Report - is the right choice for most conventional properties that appear to be in reasonable condition. We carry out a thorough visual inspection of all accessible areas and present our findings using a clear traffic-light rating system. Each element of the home receives a score from 1 (no action required) to 3 (urgent attention or specialist investigation needed), so you can see at a glance which parts of the property need attention and which are performing as they should.
CF3 saw 462 residential property sales in the last year and prices rose 2.7% over that period. However, individual properties vary enormously, and the only way to know exactly what you are buying is to commission an independent survey from one of our qualified RICS surveyors. Our reports give you the information you need to negotiate, budget for repairs, or - in some cases - walk away from a problematic purchase before it is too late.

£259,958
Average House Price
Property Solvers, last 12 months
£445,673
Detached Average
Rightmove, last 12 months
£270,271
Semi-detached Average
Most common sale type in CF3
£216,386
Terraced Average
Rightmove, last 12 months
462
Total Sales (Last Year)
Down 34.42% on previous year
Our RICS Level 2 Survey is a comprehensive visual inspection carried out by one of our qualified chartered surveyors. We examine every accessible part of the property - starting at the roof and working down through the external walls, windows, and doors to the interior rooms, floors, services, and outbuildings. In CF3, where the housing stock ranges from 1950s post-war estates in Llanrumney and Rumney to newer developments in St Mellons and older properties in Old St Mellons, our inspectors adapt the assessment to the specific characteristics of each home.
Each element of the building is assessed and scored on a 1-3 scale. Those scored 1 need no immediate action and are performing as expected. Items scored 2 have defects that need monitoring or addressing in due course but are not urgent. Elements scored 3 require immediate attention or specialist investigation - these are the areas that most significantly affect your negotiating position. We also clearly note any areas that could not be inspected, such as areas concealed by furniture or locked outbuildings, so you always understand the full scope of our assessment.
The report includes our professional view on whether the agreed purchase price reflects the property's condition. If we identify significant defects, you can use this information to negotiate with the seller, request repairs before contracts are exchanged, or obtain specialist contractor quotes to understand the true cost of ownership. The survey also includes guidance on maintenance priorities, which is particularly helpful for first-time buyers purchasing older stock in Llanrumney or Rumney.
CF3 is a postcode with real variety in its housing stock. Parts of the area - particularly Llanrumney and Rumney - were developed extensively in the post-war period to house Cardiff's growing population. These homes, now 60 to 80 years old, are entering a phase where maintenance backlogs can accumulate quickly. Roof coverings reach the end of their design life, original plumbing and electrical installations become outdated, and damp issues develop in properties where adequate ventilation was not built in from the start. Our surveyors understand these patterns well.
At the same time, CF3 has seen significant new build activity in recent years. St Mellons and the surrounding areas have several active developments, including Sant Silian on Bridge Road, Maple Fields in Llanrumney by Wates Residential, and Kings Drive. For buyers considering older properties close to or previously near these sites, issues of structural movement, drainage, and ground conditions can be relevant. Our survey identifies these concerns clearly, drawing on the full picture the property presents on the day of inspection.
Old St Mellons adds another dimension to the CF3 housing mix. This historic village contains older properties - some potentially listed - where the construction methods and materials differ significantly from modern and post-war homes. A professional survey is essential for buyers in Old St Mellons, as defects in these properties can be more complex and more costly to address than in standard modern construction. Our chartered surveyors flag these issues clearly and recommend specialist investigations where needed.

Source: Rightmove sold price data for CF3, last 12 months. Semi-detached properties are the most common sale type in this postcode.
CF3's broad mix of housing ages and types means we encounter a wide range of defects when surveying properties in the area. The post-war estates of Llanrumney and Rumney produce a consistent pattern of issues related to the age of their construction - original roof coverings reaching the end of their life, outdated electrical consumer units, and plumbing systems that predate modern standards. Older properties in Old St Mellons present a different set of challenges, including damp in solid-walled buildings and structural movement in properties with shallow foundations.
Damp is one of the most common issues we encounter across CF3. This can take several forms: rising damp where the damp-proof course has failed or is absent, penetrating damp caused by defective pointing or damaged roof and gutter systems, and condensation-related damp in properties with inadequate ventilation. Identifying the correct cause of damp is critical, because the treatment - and its cost - varies significantly depending on whether the problem is structural, maintenance-related, or ventilation-related. Our surveyors take moisture readings throughout the inspection and note their findings clearly.
CF3's proximity to the River Rumney and the coast means that some properties in the area may have been affected by flooding events in the past. Evidence of flooding is not always visible without a thorough inspection - look for tide marks on walls, salt crystallisation on internal brickwork, or disturbed floor coverings and skirting boards. Our surveyors are trained to spot these signs and will flag them in the report, recommending specialist flood risk and drainage investigations where appropriate.
Every survey we carry out in CF3 is conducted by a fully qualified member of the Royal Institution of Chartered Surveyors. RICS membership requires passing rigorous professional examinations and maintaining continuing professional development. Our surveyors hold comprehensive professional indemnity insurance and work to the strict RICS code of conduct. This means the assessment of your potential home is carried out to a recognised professional standard that the mortgage market, legal sector, and property industry all respect and trust.
Our surveyors working in CF3 are familiar with the specific character of the area's housing stock. They understand the post-war construction methods common in Llanrumney and Rumney, and they know what to look for in the older properties of Old St Mellons. That local knowledge translates directly into a more thorough and more useful survey report - one that identifies the issues most likely to affect this specific type of property, not just generic concerns that apply anywhere.
After the inspection, your surveyor prepares your written report and is available to discuss the findings directly with you. We actively encourage all our CF3 clients to get in touch after reading the report with any questions they have. Survey reports contain technical information that is not always immediately obvious to buyers without a construction background, and we believe that explaining our findings clearly is as important as making them in the first place. Our surveyors take the time to walk you through any concerns we have raised.

CF3 borders the River Rumney and has coastal proximity on its eastern edge, placing parts of the postcode in areas that may be at risk of river flooding, surface water flooding, or both. Evidence of past flooding can be hidden under decorating and floor coverings, making it difficult to spot during a standard viewing. Our RICS Level 2 Survey inspects for signs of water ingress and flooding, and we recommend that your solicitor checks the property's Environment Agency flood risk classification before you exchange contracts. Properties with a history of flooding can face higher insurance premiums, difficulties re-mortgaging, and reduced buyer appeal when you come to sell in the future.
Unsure which survey level suits your CF3 property? Contact our team and we will recommend the right option based on the property's age, type, and condition.
Llanrumney and Rumney were developed largely in the post-war period as part of Cardiff's housing expansion programme. The properties built in this era - predominantly semi-detached and terraced houses - were constructed to the standards and with the materials available at the time. Many of these homes are now 60 to 80 years old and approaching or entering a significant maintenance phase. Understanding what this means for the specific property you are buying requires a professional inspection, not just a viewing.
Post-war properties in CF3 typically feature cavity wall construction, concrete roof tiles or clay tiles (depending on the builder and period), and original heating and electrical installations that may have been partially updated over the decades. Key risks in these properties include failed or degraded cavity wall ties, roof coverings that have outlived their design life, outdated electrical consumer units, and original pipework that can be prone to corrosion. Extensions added in the 1970s, 1980s, or later without proper building control approval are also a frequent finding in our surveys of this era of property.
None of these issues makes a post-war property in Llanrumney or Rumney a bad investment. Many are well-maintained, well-located, and good value when priced at the CF3 terraced average of £216,386 or the semi-detached average of £270,271. But knowing precisely what condition the property you are buying is in - and what maintenance or repairs are coming - lets you budget accurately and negotiate from a position of knowledge rather than assumption. That is exactly what our RICS Level 2 Survey delivers.
Start by completing our online quote form. Tell us the property's address, the agreed purchase price, and a brief description of its type and approximate age. We will give you an exact, fixed survey fee immediately - no need to call us or wait for a response. For CF3 properties, the survey cost reflects the national average range of £416 to £639 depending on property value and size.
Once your quote is confirmed and payment is taken, you choose your preferred survey date from the available slots for CF3 and the surrounding Cardiff area. We aim to complete most surveys within five to ten working days. If your purchase is time-critical, let us know and we will prioritise your booking to fit your exchange timeline.
Our team contacts the selling agent directly to arrange access to the property on your chosen date. You do not need to attend the inspection in person, though you are welcome to do so. The on-site inspection typically takes between two and four hours, depending on the size and complexity of the property being assessed.
Your RICS Level 2 Survey report is delivered electronically within three to five working days of the inspection. It is written in clear, accessible language throughout - not in technical jargon. You will receive a complete PDF document structured around the standardised RICS Level 2 format, with every inspected element rated and explained.
After you have read the report, your surveyor is available for a direct conversation to go through the findings. We encourage all our CF3 clients to take us up on this. Talking through the results with the professional who carried out the inspection gives you context and clarity that the written report alone cannot always provide - particularly if we have identified significant issues that need further investigation or affect your decision to proceed.
On the day of the inspection, our surveyor arrives at the CF3 property and begins with the exterior. We assess the roof covering from ground level and from accessible positions - checking for slipped or missing tiles, failed flashings around chimney stacks and junctions, and the general condition of the ridge and verge. We then examine the external walls for signs of movement, cracking, or damp penetration, and assess the condition of all windows, external doors, and rainwater goods. In a post-war CF3 property, the external inspection often reveals early signs of cavity wall tie failure or pointing that needs renewal.
Inside, we work through each room in a methodical sequence. We check ceilings for staining or cracking, walls for damp indicators and structural movement, and floors for signs of movement or softness underfoot. We test windows and doors for correct operation and examine all joinery for evidence of rot or decay. We use a moisture meter to test surfaces where damp is suspected, and we inspect the loft space where accessible to check the condition of the roof structure, insulation, and any plumbing or pipework present. The inspection is non-intrusive - we do not lift floor coverings or open up construction - but our surveyors are trained to read the visible signs of what may lie beneath.
We conclude the inspection with a visual review of the property's services. We note the type, age, and apparent condition of the heating system, the electrical consumer unit, and the water supply. We do not test or operate these systems during the survey, but we flag any visible concerns and recommend specialist testing by a Gas Safe registered engineer or a qualified electrician where appropriate. For older CF3 properties with original installations, specialist testing recommendations are common and important to follow up before you commit to the purchase.

Survey costs in CF3 follow the national pricing structure for RICS Level 2 Surveys, which varies based on the property's purchase price and size. According to Compare My Move data from February 2026, the national average cost for a RICS Level 2 Survey is around £455, with most buyers paying between £416 and £639. Homes priced below £200,000 typically attract survey fees starting from around £376. Those priced above £500,000 average around £586 due to the greater scope of inspection required.
In the CF3 market, where terraced properties average £216,386 and semi-detached homes average £270,271, most buyers can expect to pay in the lower to mid part of that national range. Detached properties in CF3, which average £445,673, will attract a higher survey fee reflecting the greater scope of the inspection. We provide an exact, fixed price when you complete our online quote form - there are no surprise additions to the fee after you have booked.
Viewed against the cost of the purchase and the potential cost of undiscovered defects, a RICS Level 2 Survey represents excellent value. A single significant defect - a failing roof, a major damp problem, or an outdated electrical installation - can cost far more to remedy than the survey fee. Our survey gives you the information to avoid surprises, negotiate a better price, or plan your maintenance spending from the moment you move in. For CF3 buyers purchasing in a market that has seen a 34.42% decrease in transaction volumes over the last year, that information is particularly valuable when making a confident offer.
Survey costs in CF3 follow the national RICS Level 2 pricing structure. The national average is around £455, with most buyers paying between £416 and £639 according to Compare My Move data from February 2026. Homes valued below £200,000 attract fees starting from around £376, while those above £500,000 average around £586. In CF3, where semi-detached homes average £270,271 and terraced properties average £216,386, most buyers fall in the lower to mid range. We provide an exact fixed fee when you complete our online quote form.
For many older properties in CF3, a RICS Level 2 Survey is the right choice - particularly for post-war semi-detached and terraced homes in Llanrumney and Rumney that are in reasonable overall condition. For properties in Old St Mellons that are significantly older, listed, or showing obvious signs of major defects or unusual construction, a RICS Level 3 Survey may be more appropriate. If you are unsure which level suits the property you are buying, contact our team and we will advise based on what you tell us about the property's age, type, and known condition.
The on-site inspection for a RICS Level 2 Survey in CF3 typically takes between two and four hours. The exact duration depends on the property's size, age, and accessibility. A three-bedroom semi-detached house in Llanrumney will take less time than a larger detached property in St Mellons. After the inspection, your surveyor prepares the written report, which we deliver within three to five working days. From the time you book to the time you receive your report, the total process usually takes one to two weeks. We can prioritise if your purchase timeline is tight.
CF3 borders the River Rumney and has coastal proximity, placing parts of the postcode in areas that may be susceptible to river flooding, surface water flooding, or both. We inspect for signs of past flooding during our survey - including tide marks on walls, salt crystallisation on brickwork, and disturbed floor finishes. We also recommend that your solicitor checks the Environment Agency's flood risk classification for the property before you exchange contracts. Properties with a history of flooding can face higher insurance premiums and may be harder to sell or remortgage in the future. Understanding the flood risk before you commit is an important part of the due diligence process.
Yes - a RICS Level 2 Survey is one of the most effective tools for negotiating on price. If we identify defects in the CF3 property, you can get contractor quotes for the repairs and present these to the seller to support a request for a price reduction or for the repairs to be completed before exchange. In the current CF3 market, where transaction volumes have fallen 34.42% compared to the previous year and sellers may be motivated, buyers with a professional survey identifying specific issues are in a strong negotiating position. Our surveyors produce clear, specific reports that give you a solid basis for any negotiation.
Yes, absolutely. A mortgage valuation is carried out solely for the lender's benefit to confirm the property is adequate security for the loan. It is a brief assessment - typically lasting less than thirty minutes - and does not provide you with a detailed condition report. Many mortgage valuations are now carried out remotely using desk-based data, with no physical inspection at all. Our RICS Level 2 Survey is conducted exclusively for your benefit and involves a thorough on-site inspection lasting several hours. The report is designed to tell you the condition of the property and what you should do about it - something a mortgage valuation cannot and does not do.
If our survey identifies serious defects - such as structural movement, major damp ingress, a failing roof, or evidence of flooding history - we flag these as condition rating 3 items in the report and recommend specialist investigations. You then have several options: negotiate with the seller for a price reduction reflecting the repair costs, ask the seller to complete repairs before exchange, commission specialist surveys for a more precise cost estimate, or decide not to proceed. Our report exists to protect your interests. In CF3's current market, where the average house price has risen 2.7% but individual properties vary widely, commissioning a survey before you are legally committed to a purchase is the most effective protection available.
Our full range of property surveys covering CF3 and east Cardiff
From £600
Our most detailed survey, recommended for older CF3 properties and those in Old St Mellons
From £60
Energy Performance Certificate required for sales and rentals in CF3
From £300
Identify defects in CF3 new builds at Sant Silian, Maple Fields, and Kings Drive before you move in
From £150
Full electrical safety inspection for CF3 properties, particularly important in post-war homes
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Expert homebuyer reports for St Mellons, Llanrumney, Rumney and Old St Mellons
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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.