RICS Level 3 Building Survey in CH5

Our RICS Level 3 Building Survey gives a thorough look at the property’s condition, picking up defects, likely future problems and repairs that cannot wait. We inspect every accessible part of the building, from the roof structure to walls, floors, ceilings, doors and windows. Where it is safe, our inspectors also check built-in appliances, and we review both the inside and outside of the property. In CH5, that means we also keep an eye out for local issues, including damp linked to Flintshire’s clay-rich soils or damage associated with historic mining activity.

Each element we inspect is set out in a plain rating system, starting at "not inspected" and running through to "urgent repairs necessary." Alongside that, we give practical maintenance advice to help safeguard your investment over the long term, plus estimated repair costs where needed. For buyers at new developments such as Dutton Fields or Hollybrook Park, we can pick up snagging points for the builder to put right before completion. The report also contains a market valuation, which is especially useful when defects come to light and price talks begin. That matters in the CH5 market too, where 371 properties sold in the last year and good homes still attract plenty of attention.

CH5 properties come with a few structural issues our surveyors are trained to spot. Much of Flintshire sits on clay soils that shrink and swell, and that movement can affect foundations, especially after a dry spell is followed by heavy rain. We look for the signs, cracked walls, doors that stick, or doors that will not shut cleanly. Where there has been mining in the past, our inspectors consider subsidence risk and set out whether further investigation is needed. With a Level 3 survey, you get the fuller picture before you go ahead.

We do not stop at the main house. Where access allows, our inspection also includes garages, outbuildings and boundary walls. Drainage is checked too, which matters in CH5 because defective drains are a frequent cause of subsidence damage. We also look at the property’s position in relation to flood risk, and parts of Deeside, Connah's Quay and Saltney are forecast to be below the annual flood level by 2030. That sort of detail gives you confidence in the purchase and real weight in negotiations if significant problems are uncovered.

• Complete structural inspection
• Detailed defect identification
• Cost estimates for repairs
• Market valuation included
• Professional recommendations

Across the CH5 postcode area, properties face a number of structural risks that our Level 3 Survey is designed to pick up. The most significant is clay shrink-swell, a geological hazard affecting buildings throughout Flintshire because of the clay-rich soils beneath the region. After dry weather followed by prolonged rain, the clay expands and contracts, and the foundations can move. That movement may lead to cracking in walls, especially diagonal cracks around door and window frames, and it can leave floors uneven. Our inspectors are used to spotting the signs and can advise on whether remedial works are needed. This is particularly relevant because the zone of seasonal moisture fluctuation where shrink-swell happens usually reaches 1.5-2 meters underground, and in some conditions can extend to 5 meters.

Another key concern in CH5 is the legacy of coal mining. Flintshire has a long history of underground mining, and although many older workings have settled, shallow coal seams can still create problems. The Coal Authority recorded six mining-related subsidence incidents in Flintshire between May 2022 and January 2025 alone. Our surveyors judge the likelihood of mining-related movement by looking at the property’s location, historical records and any visible damage. In higher-risk spots, we may advise a more detailed investigation or suggest speaking to the Coal Authority. That is especially important in Buckley, where the local brick-making history points to extensive clay working.

Flood risk is very real for properties in CH5, particularly in the low-lying areas close to the Dee Estuary. Parts of Deeside, Connah's Quay, Saltney and the surrounding area are projected to be below the annual flood level by 2030 because of rising sea levels, according to Climate Central data. Deeside Industrial Park, Garden City, Sealand, Queensferry and Sandycroft are all flagged as being at risk. Our inspectors check for signs of previous flood damage, assess the property’s position against flood zones and review how well any existing flood measures work. Add the risk of surface water flooding during heavy rain, and a Level 3 Survey becomes particularly valuable for CH5 homes.

Our surveyors also look for issues linked to the local building methods used across Flintshire. Many older properties were built from flint, chalk, brick and stone, with brick becoming more common from the 18th century onwards. In timber-framed cottages, brick walls were sometimes laid in decorative patterns, while in clay areas such as Buckley, brick was often used on its own with red clay roof tiles. We understand these traditional methods and can identify related defects, including worn mortar pointing, structural problems in timber frames and damage caused by unsuitable modern repairs that trap moisture and lead to decay.

• Clay shrink-swell subsidence
• Historical coal mining movement
• River and coastal flooding
• Surface water flooding
• Ground stability issues

The CH5 property market brings its own challenges, which is why a full Level 3 Survey is so useful here. With 39% of properties in the area detached and 34% semi-detached, many homes are sizeable purchases that deserve a proper check before you commit. The average price of £223,816 means that even modest defects can give you real bargaining power, while bigger structural concerns could save you from an expensive mistake.

The range of property ages in CH5 also means careful surveying is essential. You have Victorian terraces in the centres of Connah's Quay and Buckley, post-war semi-detached houses, and modern new builds at Hollybrook Park and other developments. Each period used different materials and techniques. Our surveyors know how those buildings were put together and can spot age-related defects that a buyer may miss. For example, homes built before 1900 may have timber frames needing specialist attention, while post-war houses can suffer from cavity wall tie corrosion.

The Deeside Industrial Park also shapes the local market in CH5. With major employers including Tata Steel headquartered near Dutton Fields, and strong transport links through the A55 and Deeside Parkway railway station, the area draws people who want to live nearby. That supports demand for homes, but it also means maintenance standards may vary depending on whether a property has been owner-occupied or rented out. Our survey gives you a clear view of the true condition of any property you are considering in this busy market.

Parts of CH5 fall within conservation areas, including Hawarden, and Flintshire has over 1,000 listed buildings, so some homes come with special controls that affect what you can do after purchase. Our surveyors can point out any conservation or listed building issues that might affect your plans, so you understand the full position before you commit.