RICS Level 3 Survey Harlow CM20

Harlow was developed as a New Town after World War II, with the majority of housing constructed between 1945 and 1980. This post-war housing stock, while generally well-built using traditional cavity wall construction with brick external walls, presents specific challenges that our inspectors frequently identify. The predominant use of brick (often red or brown), render finishes, and concrete tile roofs means that issues such as damp penetration, roof tile degradation, and condensation can affect properties throughout the area. Around 55.4% of Harlow's housing was built during this period, making it the dominant property type you'll encounter when house hunting in CM20.

The geology beneath Harlow poses significant considerations for property owners. CM20 sits on London Clay, an expansive soil type that expands and contracts significantly with moisture changes. This shrink-swell behavior creates genuine risks of subsidence or heave, particularly for properties with shallow foundations or those located near mature trees. Our surveyors are trained to identify the signs of foundation movement, including characteristic cracking patterns, and can advise on the severity and likely causes. The high shrink-swell risk in this area means foundation issues are among the most common serious defects we identify during our surveys.

Properties in the older parts of Harlow, particularly those in or near the Old Harlow Conservation Area, may date back to the Victorian or Edwardian periods. These solid-walled properties require specialist attention, as their construction differs fundamentally from modern cavity wall buildings. The presence of historic features, potential for hidden decay, and the strict planning constraints imposed on listed buildings and conservation area properties all factor into our assessment. Harlow has ten conservation areas in total, with Old Harlow being the oldest, designated in 1969 and encompassing historic buildings on Market Street, Fore Street, and High Street.

Flood risk is another important consideration specific to CM20. Harlow is nationally recognized as a Flood Risk Area by the Environment Agency, with the River Stort flowing along the northern boundary of the town. Surface water flooding has affected numerous properties in recent years, and our surveys include assessment of flood risk indicators, existing damage, and potential vulnerabilities. Around 1,680 residential properties in Harlow were identified as being at risk during a 1 in 100-year storm event, with potential for this to increase to around 2,390 properties with future climate change impacts. Critical Drainage Areas have been identified across the town where surface water flooding affects homes and infrastructure.

• London Clay shrink-swell risk
• Surface water flood exposure
• Post-war construction challenges
• Conservation area restrictions
• Asbestos in pre-2000 properties
• Foundation movement indicators

The RICS Level 3 Survey represents the gold standard in property inspection, providing far more detail than a standard HomeBuyer Report. Our surveyors examine the entire property, inside and out, producing a report that runs to typically 30-40 pages or more for a standard house. The report provides clear condition ratings for each element inspected, from the roof covering to the foundations, making it easy to prioritize repairs and understand their urgency. Each section includes detailed analysis of what we found, how the defect likely occurred, and what implications it has for the property's long-term structural integrity.

For CM20 property buyers, the Level 3 Survey addresses the specific risks associated with local construction types and ground conditions. We inspect the condition of walls, floors, ceilings, and stairs, examine the roof structure and covering, assess the condition of windows and doors, and evaluate the property's drainage and damp-proofing measures. Our surveyors also check for evidence of timber decay, pest infestation, and any alterations that may have been made to the original construction. Given that around 55% of properties in Harlow were built between 1945-1980, we frequently encounter issues related to the construction methods used during this period, including concrete tile degradation and original damp-proof course failures.

The report includes specific advice on repairs and maintenance, with estimates of the likely costs involved. This financial transparency helps you negotiate with the seller if significant issues are identified, or plan for future expenditure once you own the property. For properties in flood-risk areas of CM20, we provide specific guidance on flood resilience measures and any existing flood damage that should be addressed. Our cost estimates are breaking down by priority, so you know which issues need immediate attention versus those that can be scheduled for future maintenance.

• Complete structural examination
• Detailed defect analysis with photos
• Cost estimates for repairs
• Priority ratings for issues
• Flood risk assessment
• Specialist advice for older properties

The CM20 area continues to see significant new development activity, with several major developments delivering homes across the postcode. The Laurels on Second Avenue offers properties from Barratt Homes, while Gilden Park in Old Harlow brings new homes from Taylor Wimpey and Bovis. The Newhall development and Edinburgh Way also add to the new housing stock in the area. Crown Gate offers luxury apartments for rent in the town centre. While these modern properties benefit from contemporary building regulations, they can still contain defects that only a trained eye will spot.

Our surveyors inspect new-build properties with the same thoroughness as older homes, checking the quality of construction, the proper installation of windows and doors, the effectiveness of insulation and damp-proofing, and the condition of fixtures and fittings. We have found issues ranging from inadequate ventilation to poor sealing around windows in newly constructed properties across the Harlow area. Even in properties built to modern standards, the rapid pace of development sometimes means corners are cut, and our independent inspection ensures you know exactly what you're getting.

For buyers purchasing off-plan or still under construction, we also offer snagging inspections that identify defects before you complete on the property. This is particularly valuable given the scale of development in CM20, where hundreds of new homes are being delivered each year. Our independent assessment gives you leverage to require the developer to address issues before they become your responsibility. With the life sciences, advanced manufacturing, and logistics sectors driving employment growth in Harlow, demand for new housing continues to rise, making quality construction inspections increasingly important.

Based on our extensive experience surveying properties throughout the CM20 area, there are several defect types that we encounter regularly. Understanding these common issues helps you know what to expect from your survey and what questions to ask. The predominant London Clay geology means that subsidence and foundation movement are among the most serious concerns we identify, particularly in properties with shallow foundations or those close to mature trees that can extract moisture from the soil.

Damp-related issues are another frequent finding, particularly in the substantial proportion of properties built between 1945-1980. Rising damp, penetrating damp, and condensation are all commonly identified, often due to failed damp-proof courses, inadequate ventilation, or missing pointing in external walls. Given that many properties in Harlow have solid brick walls rather than modern cavity wall construction, these issues can be more prevalent and require specialist assessment. Our surveyors use their expertise to distinguish between minor damp staining and genuine defects requiring remediation.

Roofing problems feature regularly in our reports, with issues ranging from slipped or broken tiles on pitched roofs to deterioration of flat roof coverings. Many properties from the mid-20th century have original roof coverings that are now reaching the end of their serviceable life. We also frequently identify issues with roof space insulation, ventilation, and the condition of felt underlay. For properties in areas with mature trees, leaf accumulation and moss growth can accelerate roof degradation.

Asbestos-containing materials remain a consideration for properties built before 2000. While not visible to the untrained eye, our surveyors know where to look for potential ACMs in textured coatings, insulation boards, and pipe lagging. We can advise on the condition and recommended action if asbestos is suspected or identified during the inspection. For properties in conservation areas, we also assess any historic features that may require specialist conservation expertise during any renovation work.