RICS Level 2 Survey in BN7

The River Ouse runs through the centre of Lewes, and the lower parts of the town - particularly Cliffe and the streets below the castle - are within defined Environment Agency flood zones. The October 2000 floods inundated hundreds of properties in Lewes, causing damage that took years to remediate and resulting in significant insurance complications for affected owners. While flood defence works have since been improved, the underlying fluvial flood risk remains a live consideration for any property purchase within BN7.

Properties in Flood Zone 2 or 3 in BN7 face elevated flood insurance premiums and may be subject to restrictions from mortgage lenders. The Flood Re scheme supports insurability for many affected residential properties in the UK, but properties built after 2009 are excluded. A formal flood risk search through your solicitor is essential for any BN7 property in the lower town. Our survey notes any visible flood-related indicators - watermarks on internal walls, replaced flooring and skirtings at ground level, or specialist flood-resilient features installed by a previous owner.

Surface water flooding is a secondary risk across BN7, including in areas not directly adjacent to the River Ouse. Lewes's topography - with the town built on a chalk spur above the flood plain - means that heavy rainfall can cause rapid runoff from higher ground into lower streets. Inadequate drainage at road level and blocked gullies contribute to localised surface water pooling.

The surrounding villages in BN7 are generally at lower fluvial flood risk than central Lewes, though properties with watercourses running through or adjacent to their curtilage warrant a specific flood search. Ringmer Brook and tributaries of the Ouse through the low-lying farmland between Lewes and Ringmer carry modest flood risk that can affect properties built close to these watercourses.

Lewes has one of the highest concentrations of listed buildings of any market town in East Sussex. The High Street contains a continuous run of listed buildings of medieval, Georgian, and Victorian date. Anne of Cleves House in Southover (a Grade I listed timber-framed building given to Anne of Cleves by Henry VIII in 1541) and Lewes Castle represent the upper tier of historic designation, but the town contains hundreds of Grade II listed properties across the residential streets of the town centre.

Conservation area designation covers much of central Lewes and extends into several surrounding villages within BN7. Within conservation areas, permitted development rights are restricted - replacement windows, external wall finishes, roof alterations, and satellite dish installations all require planning permission even for unlisted buildings. Brighton and Hove City Council and Lewes District Council both have planning teams responsible for the relevant areas of BN7, and consent requirements differ between the two authority areas.

Repairs and maintenance of listed buildings must use appropriate historic materials: lime mortar not cement, natural slate or clay tiles not concrete interlocking tiles, and timber sash windows not UPVC. Unauthorised works - even if visually minor, such as replacing a timber sash window with a UPVC equivalent - constitute a criminal offence and create liability on resale. Our survey identifies any apparent non-compliant alterations visible during inspection and flags these for legal review before exchange.

For properties in central Lewes, the high street conservation zone, or any of the BN7 villages with conservation area designation, we strongly recommend considering a RICS Level 3 Building Survey rather than the Level 2. The descriptive depth of a Level 3 report is better suited to the complex defect histories that historic Lewes properties can carry, and the more detailed structural commentary assists when instructing specialist contractors for listed building works.

Our chartered surveyors conduct a structured inspection of all accessible parts of the property, internally and externally. For a standard BN7 terrace or semi-detached, the visit takes approximately 2-3 hours. We assess the property from the public highway and all accessible external elevations, noting condition of walls, roof, windows, and drainage across every visible face.

Internally, we inspect each accessible room including the loft space where safe access is available via a fixed or fold-down ladder. We assess walls and ceilings for cracking patterns, test floors for bounce, unevenness, or localised weakness, and check window and door frames for distortion or swelling that can indicate moisture ingress or ground movement. Damp meter readings are recorded at the base of all external walls, in bathrooms and kitchens, and at any location where staining, discolouration, or plaster deterioration is visible.

For BN7 flint properties, we pay particular attention to the condition of mortar between flints on external elevations and the junction between flint walling and any rendered or brick sections. Mortar failures in flint walls can be difficult to spot without close inspection - our surveyors use binoculars for roof and upper wall assessment, and probe accessible mortar joints at ground floor level.

• Roof covering: slates, clay tiles, ridge, verge, valley, and flat roof sections assessed from ground and loft
• Chimney stacks: lead flashings, pointing, pots, and stack stability from ground level and roof space
• External walls: brick, flint, render, weatherboarding and hung tile condition across all elevations
• Damp: calibrated meter readings at regular intervals across all ground and first floor external walls
• Floors: bounce, unevenness, signs of rot in timber floors and inadequate sub-floor ventilation
• Internal cracks: BRE crack classification applied to all significant cracks in walls and ceilings
• Services: visible condition of heating systems, electrical consumer unit, plumbing pipework
• Drainage: gutters, downpipes, and inspection chamber condition where accessible