Greater London · Property Check
Property check London: 12 things to check before buying
Buyers in London can pull together a complete pre-offer due-diligence picture in roughly 30 minutes using free public data and one or two paid layers. This page walks through the 12 checks in order: what each one is, where the data comes from, and what to do with the result.
Last updated: 6 May 2026. Editorially reviewed: 20 May 2026.
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Check the property before you offer
Flood, subsidence, EPC, crime, schools, transport, broadband, tenure, age, listed status and price checks where data is available.
Run a free previewWhy these checks matter in London
London sits on the Thames floodplain with the river bisecting the city and a tidal limit at Teddington Lock. The Environment Agency ranks the Thames Estuary as one of the highest-stake flood-defended floodplains in Europe, protected by the Thames Barrier since 1982, but tributaries like the Lea, Wandle, Roding, Brent and Ravensbourne carry their own river-flood risk, and surface water flooding is the more frequent buyer headache across most boroughs.
Most of London sits on London Clay, a stiff, blue-grey marine clay that shrinks in dry summers and swells when re-wetted. London Clay is the textbook case study for clay shrink-swell subsidence in the UK and the BGS rates susceptibility as high to very high across most boroughs.
Different cities have different headline risks. The 12 checks below are the ones that matter for UK addresses, subject to source coverage. The relative weight you give each one will differ in London compared to, say, a coastal town or a former mining village.
The 12 checks
- 1
Flood risk
National flood-map sources, surface water and reservoir checks where available.
- 2
Subsidence and ground stability
Directional BGS 1:1 million engineering geology, mining history and local context.
- 3
EPC band and energy cost
Current EPC, MEES rules, projected fuel cost.
- 4
Building age and construction era
Pre-war, inter-war, post-war, modern. This points to the defects to expect.
- 5
Listed building or conservation area status
Historic England listing, local conservation designations.
- 6
Crime data
Police.uk reported offences for the postcode and street.
- 7
Schools and Ofsted
Catchment, last inspection, performance bands.
- 8
Broadband and mobile coverage
Ofcom available speeds and mobile signal at the address.
- 9
Transport and connectivity
Walk to nearest station, road network, EV charger availability.
- 10
Tenure
Freehold, leasehold, share of freehold, commonhold.
- 11
Price comparison
HM Land Registry Price Paid, recent comparables on the street.
- 12
Environmental and noise
Air quality, noise sources, contaminated land history.
Headline risks for London buyers
Flood
Documented flood-prone areas include Thamesmead and parts of Bexley (tidal); Stratford, Hackney Wick and the Lea Valley (river); Wandsworth, Tooting and the Wandle corridor; Lewisham along the Ravensbourne; and surface-water hotspots in central London including parts of Soho, Bloomsbury and Earl's Court that flooded in July 2021.
Read the full Londonflood risk guide →Subsidence
BGS GeoSure rates clay shrink-swell susceptibility as high or very high across the majority of inner and outer London. The 2003, 2018 and 2022 dry summers each triggered subsidence-claim spikes; insurer industry data attributes the bulk of UK subsidence claims to London Clay regions.
Read the full Londonsubsidence risk guide →How to run all 12 checks for one London address
The free preview pulls available flood-zone, directional BGS 1:1 million engineering-geology, EPC, building-age and listed-status signals in about 15 seconds. The £9.99 report adds the remaining checks, buyer notes and a PDF.
Run the check
Check the property before you offer
Flood, subsidence, EPC, crime, schools, transport, broadband, tenure, age, listed status and price checks where data is available.
Run a free previewFrequently asked questions
What should I check before buying a house in London?
London sits on the Thames floodplain with the river bisecting the city and a tidal limit at Teddington Lock. The Environment Agency ranks the Thames Estuary as one of the highest-stake flood-defended floodplains in Europe, protected by the Thames Barrier since 1982, but tributaries like the Lea, Wandle, Roding, Brent and Ravensbourne carry their own river-flood risk, and surface water flooding is the more frequent buyer headache across most boroughs. The 12 standard buyer checks cover flood, subsidence, EPC, building age, listed status, crime, schools, broadband, transport, tenure, price comparison, and environmental risk. The full list is on this page; per-address data is available on the property check tool.
Is London a good place to buy property?
That depends on your budget, work location, and what you want from a neighbourhood. A website cannot answer that for you. What this page can tell you is what data may exist for a London address: flood, subsidence, EPC, crime, schools, broadband, transport, tenure, listed status, price comparison, and environmental risk.
How do I run a property check on a specific London address?
Enter the postcode in the property scanner on the homepage. The free preview pulls available EPC, flood-zone, directional BGS 1:1 million engineering-geology, building-age and listed-status signals. The £9.99 report adds the remaining checks, price comparison, buyer notes and a PDF.
Compare nearby cities
Other city property-check guides to compare with London
- Property check Reading, Berkshire
- Property check Milton Keynes, Buckinghamshire
- Property check Luton, Bedfordshire
- Property check Oxford, Oxfordshire
Keep going
Related London buyer pages
How MyPropertyScan produces this guide, and what it is not
Published by MyPropertyScan and written by Ziad Nasr, who is accountable for its accuracy. No page here is written or reviewed by a chartered surveyor, conveyancer or regulated adviser, and we do not claim otherwise.
This page is not:
- Chartered surveying — we do not inspect properties or produce RICS Home Survey reports
- Legal advice — we do not act as conveyancers or advise on title, tenure or contracts
- Mortgage or insurance advice — we are not regulated by the FCA and give no recommendations
Figures and process steps come from the published UK datasets and standards listed on this page, not from professional practice. Pages are updated when source coverage, survey cost assumptions, or lender and legal requirements materially change. Dataset limitations are set out on the methodology page.
Spotted something out of date or wrong? Email hello@mypropertyscan.com and we will correct it and change the update date.
Sources used
We use UK public and specialist sources where they are available. Public datasets can be incomplete, delayed, or missing for some addresses. Treat them as a starting point, not as a replacement for professional advice.
Source standard: preference goes to official government datasets, statutory bodies, professional standards, and primary dataset publishers. We cite the source family on the page and explain coverage limits rather than filling gaps with unsupported estimates.
- Check this with: Environment Agency long-term flood risk mapOfficial flood-risk service for England, including river, sea, surface water, reservoir and groundwater where available.
- Data source: HM Land Registry Price Paid DataRegistered residential sale prices for England and Wales.
- Official register: Energy Performance Certificate RegisterPublic EPC certificate lookup for an address, postcode, street or certificate number.
- Data source: British Geological Survey Engineering Geology (1:1 million)National-scale bedrock and superficial-deposit mapping used as a directional ground indicator, not parcel-level GeoSure data or a site investigation.
- Data source: Copernicus CAMS via Open-MeteoCurrent modelled PM2.5, NO₂ and European AQI from a nearby CAMS grid cell.
- Data source: DEFRA Environmental Noise Directive mappingMapped road and rail noise contour data for England, classified into MyPropertyScan's low/moderate/high bands, and separate from the CAMS air-quality source.
- Data source: Police.uk crime dataOpen street-level crime data for England, Wales and Northern Ireland.
- Check this with: Ofcom broadband checkerOfficial checker for broadband availability and speeds.
- Check this with: Ofcom mobile coverage checkerOfficial predicted mobile coverage by network.
- Data source: Food Standards Agency food hygiene ratingsPublic register used to identify nearby food and drink venues.
- Official register: Ofsted inspection reportsSchool and provider inspection report lookup for England. Fee-paying schools come from the DfE Get Information About Schools register, since around half are inspected by ISI and carry no Ofsted grade.
- Official register: Historic England National Heritage ListListed buildings, scheduled monuments and other protected heritage entries in England.
General information only. Not legal, mortgage, insurance, or surveying advice. Always confirm with your own surveyor, broker, and conveyancer before making decisions. MyPropertyScan is operated by BiteRight Ltd.