JBS Property Knowledge Centre

Straightforward guidance for better property decisions

Practical explanations of home surveys, common defects and valuations, written for buyers and homeowners and grounded in authoritative UK guidance.

Reviewed by a residential surveyorOfficial sources linkedPlain-English explanations

100 expert property guides

Home surveys

35 guides

Why an independent home survey matters, what it can reveal and how it supports a better-informed purchase decision.

Read the guide

Understand who each assessment is for, what it considers and why a lender valuation does not replace an independent home survey.

Read the guide

A practical comparison of RICS Home Survey Levels 1, 2 and 3 and the types of property and client needs each is intended to address.

Read the guide

The inspection, condition ratings, repair advice and limitations buyers can expect from an RICS Level 2 Home Survey.

Read the guide

A clear guide to the detailed inspection, construction analysis and repair advice provided by an RICS Level 3 Home Survey.

Read the guide

Compare RICS Level 2 and Level 3 surveys by property type, inspection depth, report detail and client needs.

Read the guide

How the two Level 2 formats differ and when independent market-value and reinstatement advice may be useful.

Read the guide

A buyer’s checklist for qualifications, regulation, relevant building experience, scope, reporting and independence.

Read the guide

Why survey fees vary and how to compare quotations by scope, property complexity, expertise and included services.

Read the guide

Where a home survey fits between offer acceptance, mortgage valuation, legal enquiries and exchange of contracts.

Read the guide

The factors affecting inspection length, report preparation and overall survey scheduling without misleading fixed promises.

Read the guide

A focused checklist covering suitability, scope, limitations, credentials, valuation, timescales and report support.

Read the guide

A room-by-room and element-by-element overview of a professional home survey, including the limits of a visual inspection.

Read the guide

The important differences between a home survey, invasive investigation, service testing, legal work and specialist reports.

Read the guide

How lofts, roof coverings and drainage chambers are approached, and why access and specialist testing matter.

Read the guide

What surveyors can observe about building services and when specialist safety checks or records are needed.

Read the guide

When attendance may be possible, how to raise concerns and why a post-report discussion is often more useful.

Read the guide

How surveys of flats address the unit, visible common parts and the separate legal and management information a buyer needs.

Read the guide

Why auction buyers should investigate physical condition and legal information before making a binding bid.

Read the guide

Why buying without a mortgage removes the lender process but not the need to understand condition.

Read the guide

A practical method for understanding ratings, risks, limitations, legal referrals and next steps.

Read the guide

How traffic-light ratings prioritise repairs, investigation and maintenance without acting as a pass or fail.

Read the guide

How to respond proportionately when a survey identifies a serious, urgent or unresolved issue.

Read the guide

Why surveyors recommend additional checks, who should undertake them and when buyers should act.

Read the guide

Separate physical findings from legal enquiries about approvals, rights, leases and documents.

Read the guide

Turn survey findings into reliable contractor scopes and useful cost information.

Read the guide

An evidence-led approach to discussing significant survey findings with a seller.

Read the guide

The pre-exchange position in England and Wales and choices after serious findings.

Read the guide

A final checklist combining survey, specialist, legal, mortgage and repair information.

Read the guide

A buyer-focused comparison of condition surveys, private valuations and lender mortgage valuations.

Read the guide

Why a landlord offer and lender valuation do not replace independent condition advice when buying under an affordable ownership scheme.

Read the guide

A practical checklist for comparing qualifications, property experience, scope, regulation and report terms.

Read the guide

A clear division of the professional roles involved in investigating, financing and progressing a home purchase.

Read the guide

Why receiving a copy of a survey or valuation is not necessarily the same as having the right to rely on it.

Read the guide

A calm, evidence-led route for seeking clarification and using an RICS-regulated firm’s complaints procedure.

Read the guide

Defects & maintenance

23 guides

A practical guide to moisture, mould and damp symptoms, how a surveyor investigates them and when further specialist advice may be needed.

Read the guide

Understand the principal moisture mechanisms found in homes and why reliable investigation considers more than stains or meter readings.

Read the guide

How surveyors assess cracking by pattern, location and context, and when monitoring or specialist structural advice may be appropriate.

Read the guide

A measured explanation of common ground-movement terms, the evidence surveyors consider and why further investigation may take time.

Read the guide

How vegetation, clay soils and water leaks can influence foundations, and how surveyors decide whether further checks are justified.

Read the guide

An overview of pitched-roof coverings, junctions, structure and roof-space evidence considered during a professional home survey.

Read the guide

What buyers should know about flat-roof coverings, drainage, junctions, internal symptoms and inaccessible construction.

Read the guide

A buyer-focused guide to chimney masonry, pots, flaunching, flashings, flues and the limitations of a visual inspection.

Read the guide

How rainwater goods protect walls and foundations, what surveyors look for and why the discharge point matters.

Read the guide

A careful guide to fungal timber decay, moisture sources, visible evidence and the role of targeted specialist investigation.

Read the guide

Why flight holes do not automatically prove active woodworm and how moisture, timber condition and fresh evidence are assessed.

Read the guide

How surveyors assess floor movement and distortion, including the important limitations created by fixed coverings and concealed voids.

Read the guide

Why masonry deteriorates, how pointing and moisture interact and why compatible repairs matter in traditional buildings.

Read the guide

What wall ties do, why some older ties deteriorate and when visible symptoms justify a targeted specialist investigation.

Read the guide

The difference between a visual home-survey drainage inspection and specialist CCTV or water-tightness testing.

Read the guide

How official flood information, property history, physical inspection, insurance and resilience measures fit together.

Read the guide

How insulation, air leakage and ventilation interact in roof spaces, and what a visual survey can establish.

Read the guide

Why wall construction, exposure, condition and ventilation should be assessed before choosing an insulation approach.

Read the guide

Where asbestos-containing materials may be found, why visual identification is unreliable and when a specialist survey is needed.

Read the guide

A buyer-focused explanation of identification, RICS risk assessment, management plans and the limits of a normal property inspection.

Read the guide

What radon mapping means, why an individual building may need measurement and how testing differs from a home survey.

Read the guide

Physical and documentary checks for altered homes, including structure, weathering, drainage, approvals, access and party-wall matters.

Read the guide

How to use an EPC alongside a condition survey and whole-building assessment before improving an older property.

Read the guide

Property types

13 guides

How traditional construction, alterations, condition and renovation plans influence the choice of home survey.

Read the guide

Why extensions, conversions and removed structural elements require joined-up physical and documentary checks.

Read the guide

The different purposes of snagging and home surveys, when they take place and what buyers should agree with a developer.

Read the guide

A practical guide to traditional Victorian construction, later alterations, maintenance risks and choosing suitable survey detail.

Read the guide

What buyers should know about Edwardian masonry, bay windows, suspended floors, roofs, extensions and modernisation.

Read the guide

A guide to early cavity walls, wall ties, bay windows, tiled roofs, floors, drainage and later alterations in interwar homes.

Read the guide

Why the exact concrete, steel, timber or modular building system matters to condition, repair, lending and insurance.

Read the guide

How new-home warranties, developer defect processes, snagging records and independent inspection fit together.

Read the guide

Physical and documentary checks for flats created within older houses and other converted buildings.

Read the guide

How a flat survey considers the apartment, visible common parts and external building while recognising access and lease limitations.

Read the guide

How building condition, management records and leasehold costs connect, while remaining separate areas of professional advice.

Read the guide

A clear explanation of external wall systems, the EWS1 process and the difference between valuation, life safety and a home survey.

Read the guide

What heritage protection means for condition, alterations, maintenance, permissions and the buyer’s professional team.

Read the guide

Valuations

25 guides

What a lender down-valuation can mean and how it differs from an independent survey.

Read the guide

Why sale-market value and an insurance rebuilding figure answer different questions.

Read the guide

A plain-English explanation of Red Book valuations, when they are used and what a properly defined residential valuation instruction should cover.

Read the guide

How a formal RICS valuation differs from an estate agent market appraisal, and why the purpose of the figure matters.

Read the guide

What a residential valuer agrees, inspects, researches and reports when preparing a purpose-specific opinion of value.

Read the guide

How residential valuers select, verify and adjust comparable evidence rather than relying on a single nearby sale.

Read the guide

Why automated property estimates and inspected professional valuations can reach different figures.

Read the guide

How lease terms, service costs and planned building work can influence a leasehold flat’s value and marketability.

Read the guide

A practical guide to commissioning a date-of-death property valuation for estate and Inheritance Tax reporting.

Read the guide

How a valuer forms a retrospective opinion of a property interest’s market value at the date of death.

Read the guide

Why ownership shares, beneficial interests and related property need careful treatment in a probate valuation.

Read the guide

How clear instructions, historic records and comparable evidence help support a probate property valuation if questions arise.

Read the guide

How a date-of-death value can interact with a later property sale, Capital Gains Tax and possible loss-on-sale relief.

Read the guide

How an independent residential valuation can support discussions or proceedings when separating finances are being resolved.

Read the guide

What parties and solicitors should expect when one independent property valuer is jointly instructed as an expert.

Read the guide

How a valuer assesses a residential property at an earlier date for separation, divorce or financial proceedings.

Read the guide

How a RICS valuation supports the purchase of additional shares in a shared ownership home.

Read the guide

How the RICS valuation fits into a shared ownership resale and why provider requirements should be checked first.

Read the guide

How approved improvements may be treated during shared ownership staircasing or resale valuations.

Read the guide

The documents, valuer requirements and report details Homes England expects when an equity loan is repaid.

Read the guide

The official extension and update routes when a Help to Buy valuation expires, plus common reasons reports are rejected.

Read the guide

How a desktop valuation differs from an inspected valuation and why suitability depends on the property, purpose, evidence and intended user.

Read the guide

When alterations, unusual construction or changing rebuilding circumstances justify reviewing an insurance reinstatement cost assessment.

Read the guide

The role of a specialist valuation when a flat owner considers a statutory or informal lease extension.

Read the guide

How a specialist valuer supports participating leaseholders considering collective acquisition of their block’s freehold.

Read the guide

Buying in London

4 guides

Speak directly with JBS Surveying

Tell us about the property and what you need. We will help you choose the appropriate survey or valuation.

Request a quote