RICS Level 3 Survey in Costessey

A RICS Level 3 Survey, also known as a Building Survey, is the most detailed inspection product available for residential properties in England. A Level 2 survey gives a broad overview and suits modern homes in decent condition, but the Level 3 Survey is built for older properties, unusual construction, and houses where significant defects are suspected. In Costessey, where the stock runs from pre-1919 solid brick homes in Old Costessey to modern cavity-wall schemes, this deeper inspection helps uncover issues that could otherwise stay hidden until they turn expensive. It suits the local mix well, from Victorian houses through to contemporary new builds, each with its own familiar fault patterns that our experienced surveyors recognise.

We inspect all accessible parts of the property, including the roof space where it is safe to get in, under-floor voids, external walls, windows, doors, and internal fixtures and fittings. Our inspectors do not stop at the surface. They look at how the building is put together, note the materials used, and judge how those parts are likely to perform over time. For homes near the River Wensum, or in places with a record of surface water flooding, we also check for signs of old water damage and any flood resilience measures that may, or may not, be in place. The way each element interacts with the next matters, because deterioration often begins before it shows on the finish.

For homes within Costessey's Conservation Area, especially around Old Costessey near Costessey Hall and the Church of St Edmund, a Level 3 Survey is often the sensible choice because so many buildings are old or historically important. Some of these properties have non-standard construction, earlier alterations that need context, or maintenance needs that only a more searching survey will uncover. The report sets out defects clearly, without jargon, explains the cause, and gives recommended repairs, along with how urgent each item is. Conservation area rules can limit future alterations too, so it helps to understand those constraints before you commit to any renovation plans.

Costessey's geology brings its own structural considerations. Beneath the area sits chalk bedrock, with glacial deposits above it, including sands, gravels and, in some locations, clay deposits, all of which can affect how foundations behave. Where clay is present, shrink-swell movement may influence walls and foundations, particularly if mature trees are nearby. Our surveyors know the signs of ground movement and can point towards specialist investigation if needed. That local knowledge is especially useful in the lower-lying parts of Costessey near the river valley, where conditions can be more testing.

• Comprehensive inspection of all accessible structural elements
• Detailed assessment of construction methods and materials
• Identification of latent defects and potential future problems
• Specific advice on properties in flood risk areas
• Analysis of buildings in or near Conservation Areas
• Tailored recommendations for remedial works
• Assessment of grounds and outbuildings
• Evaluation of any historic alterations or extensions

Surveying across Costessey has shown us a few recurring problems that buyers should keep in mind. Damp is one of the most common, whether it is rising damp, penetrating damp from failed roof coverings or damaged pointing, or condensation in homes with poor ventilation. Pre-1919 properties in Costessey are often built in solid brick, unlike the cavity wall construction found in newer houses, so they are more prone to damp penetration, particularly where external brickwork has suffered frost damage or render has failed. Solid wall homes may need specific damp-proofing measures, and our survey will point out where remedial work could be needed.

Timber defects crop up often in Costessey's older housing stock too. Woodworm activity can be present in structural timbers, especially in properties that have had roof or floor repairs in the past. Wet rot and dry rot can affect timber where moisture has got in, whether through leaking roofs, defective plumbing or poor ventilation. Our inspectors examine all accessible timber elements carefully, including roof trusses, ceiling joists, floor joists and window frames, to spot any active timber defects that may need treatment or repair. In some older homes, earlier timber repairs may have been done badly, and we can identify and comment on that.

Some parts of Costessey bring particular ground-related concerns. Clay deposits beneath the soil in certain areas can cause foundation movement through shrink-swell activity, especially where trees are close to the property. That movement may show up as cracking, doors and windows sticking, or floors that are not level. Our survey looks specifically for those signs and may recommend geotechnical investigation or monitoring if we have concerns. In homes built on, or near, the floodplains of the River Wensum, we also review flood history and any existing flood mitigation measures that may, or may not, be adequate. Surface water flooding is another issue in parts of Costessey, especially during heavy rainfall.

Roofing issues come up regularly in our Costessey surveys, particularly on homes with older tiled roofs. Slipped or broken tiles, damaged or missing ridge tiles, and failing flashing around chimneys and roof windows all leave a route for water ingress, which can then cause internal damage. We will access the roof where it is safe to do so and assess its overall condition, noting any repairs that may need urgent attention. On flat or low-pitched roofs, we pay close attention to the covering itself and to any ponding or membrane failure that could lead to leaks.

Knowing how your Costessey property is built helps explain why a Level 3 Survey can be so useful. Census data shows the housing stock in Costessey is made up of approximately 35.8% detached properties, 32.7% semi-detached, 17.5% terraced, and 13.5% flats or maisonettes. That mix reflects both the village's history and the amount of new build development in recent decades. Because the housing types vary so much, each survey has to be handled differently, with our surveyors drawing on the usual defects linked to each construction method and era.

Pre-1919 homes in Costessey, especially in Old Costessey, are usually built with solid brick walls and lime-based mortars that allow the building to breathe. They often have traditional timber-framed roofs with slate or clay tiles, and timber floor structures that may include hidden voids, which are useful when checking structural timbers. Solid brick is durable, but it is more vulnerable to damp penetration than modern cavity wall construction, and our surveyors know exactly what to look for when assessing these older buildings.

Homes built between 1919 and 1980 generally have cavity wall construction, with two leaves of brickwork separated by an air gap. That system offers better thermal performance and moisture resistance than solid walls. Even so, properties from this period can have their own issues, such as systemic calcium chloride in concrete that may cause staining, or asbestos-containing materials in Artex coatings, floor tiles or pipe insulation. Our inspectors are trained to spot those era-specific concerns.

Modern homes built since the 1980s, including those in developments like Round House Park, East Hills Meadow and Clover Gardens on Longdell Road, usually use modern cavity wall construction with brick and blockwork. They are often in good order, but defects still appear. Our Level 3 Survey can identify construction faults, building control compliance issues, or problems that have developed since completion. New build homes may also have warranty defects that only become clear after a proper inspection.