RICS Level 2 Survey in TW20 (Egham & Englefield Green)

TW20 covers a mixed patch of housing, from period homes in conservation areas to newer builds. To judge these properly, we need to understand both the geology and the way they were built. Much of the area sits on London Clay, and that brings a moderate to high shrink-swell potential. In plain terms, the ground can swell in wet weather and shrink back in dry spells, which can lead to subsidence or heave where foundations are not up to the job. Our inspectors know the warning signs, including cracking patterns and doors or windows that have slipped out of line.

In Egham and Englefield Green, plenty of houses date from the Victorian and Edwardian eras, so many are now well over 100 years old. They often come with solid walls, timber sash windows and original plumbing and electrics that no longer meet modern standards. A RICS Level 2 survey will pick up outdated electrics, especially systems installed before the 1980s, which may need a full rewire, along with asbestos-containing materials that were commonly used in properties built before 2000. There is also a sizeable stock of post-war housing from the 1940s through to the 1970s, and that brings its own familiar issues, from concrete construction defects to wiring that may simply be nearing the end of its life.

Flood risk is part of the picture too, especially for homes near the River Thames and the River Bourne. Surface water flooding can also become an issue after heavy rain, thanks to the clay ground and the amount of urban development. Our surveyors assess how exposed the property is and, where needed, suggest sensible mitigation. With approximately 100 properties selling in the TW20 area in the past 12 months, this is still a lively market, so it pays to know exactly what you are buying before you commit. The average property price in TW20 stands at around £678,000, a substantial sum that warrants proper due diligence.

Across TW20, properties are usually built in red or yellow stock brick, although rendered and pebble-dashed finishes are also common, particularly on mid-20th century homes. Period houses often have slate or tile roofs, while newer schemes may use concrete tiles or other modern roofing materials. Timber sash windows remain a key feature of Victorian and Edwardian properties in the area, and many have been replaced with double glazing, though some still have their original single-glazed units. Our surveyors understand these construction methods and can spot the issues that tend to crop up in Egham and Englefield Green.

• London Clay subsidence risk
• Victorian and Edwardian construction issues
• Flood risk near waterways
• Outdated electrical systems
• Asbestos in pre-2000 properties
• Roof and timber defects

Our work across Egham and Englefield Green has turned up a few recurring problems that buyers should keep in mind. Damp is probably the most common, especially in Victorian and Edwardian homes where original damp-proof courses may have failed or were never fitted in the first place. Rising damp, penetrating damp and condensation are all regularly found, particularly where ventilation is poor or modernisation has ignored breathability. The solid wall construction found in pre-1919 properties leaves them especially exposed, and the risk rises again where internal solid floors have been replaced with concrete without proper damp-proofing.

Roof defects come up often in TW20 surveys as well. Older houses frequently have slate or tile roofs with slipped tiles, worn felt or lead flashing problems. Left alone, those issues can let water in and damage ceilings and timber structure. Our surveyors examine every accessible roof area and flag anything that needs urgent attention or a roofing specialist’s view. In tree-lined streets such as those in Englefield Green, mature trees can also create root-related problems for foundations or drainage.

Timber defects, including woodworm, dry rot and wet rot, affect many of the older properties here. They are often linked to damp or poor ventilation in places like roof spaces, under-floor areas and outbuildings. Homes with large trees nearby are also more vulnerable to root-induced subsidence, so our surveyors look closely at the plot and at any trees within influencing distance of the foundations. With Windsor Great Park and other wooded areas close by, trees are a familiar part of TW20 gardens, which makes that check especially important.

We often find outdated electrical installations in properties built before the 1980s. Common issues include old fuse boards with rewireable fuses, no earthing and too few sockets, all of which our surveyors will flag. These systems can create safety risks and will usually need upgrading to meet current regulations before the property can be considered safe. In the oldest homes, lead pipes may still be present, while inter-war housing often has original galvanised steel plumbing, both of which may need replacing because of deterioration and concerns over water quality.

• Rising and penetrating damp
• Roof tile slippage and felt degradation
• Subsidence from clay soil movement
• Woodworm and timber decay
• Outdated electrical wiring
• Asbestos-containing materials

Your RICS Level 2 survey report uses a clear traffic light system to rate the condition of each part of the property. Red means a serious issue that needs urgent attention, such as major structural defects or extensive damp penetration. Amber points to matters that need attention but are not immediately critical, while green means no action is needed for that element. It is a simple way to prioritise repairs and plan your budget. Each part of the property, from the roof and walls to the windows and doors, gets its own rating so you can see exactly where the problems sit.

The report also gives a clear summary of the surveyor’s overall view of the property and sets out any further investigations that may be needed. If we spot issues such as suspected subsidence, asbestos or outdated electrical installations, we will suggest speaking to the right specialists before you complete the purchase. The point is to protect you from unpleasant repair bills and make sure you understand the property’s condition fully. For TW20 homes, that might mean a structural engineer’s inspection for suspected movement, a damp survey for serious damp problems, or an electrical inspection certificate for old wiring.

In TW20, where property prices are currently averaging over £670,000, it is vital to understand the real condition of the home you are buying. A RICS Level 2 survey gives you the information needed to negotiate with the vendor if significant defects turn up, either by asking for repairs before completion or by revising the purchase price to reflect the likely cost of the work. With so much money on the line, the cost of a survey is small beside the possible savings from spotting defects early or agreeing a better deal. Our surveyors have helped hundreds of buyers in Egham and Englefield Green make well-informed purchase decisions.