CoreLogic - now trading as Cotality following its March 2025 rebrand - and Rightmove both hold significant positions in UK property data, but they come at it from entirely different angles. CoreLogic is a global property analytics company with deep roots in insurance, lending, and surveying infrastructure. Rightmove is the UK's dominant property portal, whose data services division leverages 25 years of consumer search and listing activity.
This comparison is for data and procurement teams evaluating which platform - or which combination - serves their requirements for property intelligence, valuation, and risk assessment.
Who is CoreLogic (Cotality)?
CoreLogic was spun off from First American Corporation in 2010, with roots stretching back to 1991. In March 2025 it rebranded to Cotality ("collaboration, totality, vitality"), though the product suite remains unchanged. The company is privately held by Stone Point Capital and Insight Partners, who acquired it in 2021 for approximately $6 billion. It employs around 5,200 people globally and reported $1.6 billion in revenue when last publicly disclosed.
The UK operation is substantial. Cotality monitors 30.9 million UK residential properties daily, holds 150 million UK property transaction records, and collects 135 data points per property from over 100 sources. Its IntelliVal AVM is used by more than 80% of UK buy-to-let lenders. The company claims 86% of UK surveyor panel managers use its software and that over 95% of UK property valuation instructions pass through its platform.
Beyond lending and surveying, Cotality has expanded into retrofit assessment services (holding 95% of UK retrofit assessments), property insurance (hazard modelling, claims management, catastrophe risk via EQECAT), and estate agency marketing services.
Who is Rightmove?
Rightmove was founded in 2000 and listed on the London Stock Exchange in 2006. It is a FTSE 100 constituent with a market capitalisation of approximately £4.4 billion and full-year 2024 revenue of £389.9 million at a 70% operating margin. The company employs around 900 people, with 60% of new hires in 2024 joining the technology team.
The property portal is the UK's most visited property website by a wide margin - 4.1 million unique visitors per day, 2.3 billion annual site visits, and over 80% of all consumer time spent on UK property portals. This traffic generates a behavioural dataset that no registry or analytics provider can replicate: real-time search patterns, enquiry volumes, asking price movements, time on market, and supply-demand signals at granular geographic levels.
Rightmove's data services division offers an AVM processing over 400,000 valuations per month, a Surveyor Comparable Tool used 200,000 times monthly, a Market Intelligence Centre for self-service market analysis, Property Risk Alerts for lending risk identification, and bespoke data analysis services. In late 2025, Rightmove signed a multi-year partnership with Google Cloud to accelerate AI development across its platform.
Feature comparison
Automated valuation models
Both platforms offer AVMs built on different training data. Cotality's IntelliVal uses machine learning across 30.9 million monitored properties and 150 million transaction records. It reports 77% accuracy within 10% of actual sale value and claims 100% UK property coverage. Its primary market is buy-to-let lending, where it holds over 80% share.
Rightmove's AVM draws on a distinctive asset: 25 years of continuous listing data combined with Land Registry and Registers of Scotland records. At 400,000 valuations per month, it operates at significant scale. Its particular advantage is incorporating forward-looking demand signals - enquiry velocity, time on market, asking price changes - that purely transaction-based models cannot capture. However, Rightmove's AVM does not carry formal rating-agency accreditations (Moody's, S&P, Fitch), which may limit its use in securitisation contexts.
Surveying and panel management
Cotality dominates UK surveying infrastructure. Its panel management software serves 86% of UK surveyor panel managers, and over 95% of valuation instructions pass through its platform. Its mobile surveying app handles on-site and remote valuations with pre-mapped lender forms. This creates powerful network effects - lenders use the platform because surveyors are on it, and surveyors stay because lenders require it.
Rightmove's Surveyor Comparable Tool serves a different purpose. Used over 200,000 times monthly, it provides comparable property data and includes Rightcheck, an automated cross-check of surveyor valuations against the Rightmove AVM. It is a research and validation tool for surveyors rather than a panel management platform - complementary to Cotality's infrastructure, not a replacement.
Market intelligence and demand data
This is Rightmove's unique territory. No other UK data provider has access to the real-time demand signals generated by 4.1 million daily visitors searching, saving, enquiring about, and tracking properties. Metrics like enquiry velocity, time from listing to sale agreed, price reduction frequency, and search-to-save ratios are forward-looking indicators of market direction that transaction-based datasets simply cannot produce.
Cotality has deep historical data (150 million transactions, 50-plus years of price index history) and monitors properties daily for events, but its intelligence is primarily retrospective - based on what has already happened rather than what consumers are doing now.
Insurance and risk data
Cotality has the broader offering here. Its hazard and location intelligence, catastrophe risk solutions (via the EQECAT acquisition), climate risk analytics, and claims management services target UK insurance workflows across underwriting, claims, and fraud detection.
Rightmove's Property Risk Alerts cover a useful but narrower set of risks - HS2 proximity, fracking, subsidence, flood, listed building status, and recent activity flags. These serve lending risk identification rather than insurance underwriting.
Data coverage and depth
Cotality collects 135 data points per property across 30.9 million UK residential properties from over 100 sources. Rightmove holds over 120 million transactional data points from its listings archive plus Land Registry overlays. Both are strong in their core domains - Cotality in building characteristics and insurance risk, Rightmove in market signals and pricing intelligence - but neither provides the full breadth of property-level attributes that some downstream applications require.
Where CoreLogic (Cotality) is stronger
Cotality is the stronger platform for use cases touching surveying, lending infrastructure, or insurance. Its dominance of panel management and valuation instruction processing means it is effectively critical infrastructure for UK mortgage surveying. The IntelliVal AVM's 80% buy-to-let market share reflects genuine product-market fit in that segment.
For insurance underwriting, claims, and catastrophe modelling, Cotality's dedicated solutions and specialist expertise go well beyond Rightmove's lending-focused risk alerts. The retrofit assessment division (95% market share) also positions Cotality well for the growing energy efficiency and net zero compliance market.
Where Rightmove is stronger
Rightmove is unmatched for market intelligence. The ability to track real-time consumer demand, enquiry patterns, pricing movements, and supply levels at granular geographic levels is genuinely unique. For investors, consultants, local authorities, and developers who need to understand where the market is heading rather than where it has been, Rightmove's data is irreplaceable.
The Surveyor Comparable Tool's 200,000 monthly uses demonstrate real utility for the surveying profession, and the AVM's incorporation of demand-side data offers a structural advantage in fast-moving or thin markets where transaction data alone is insufficient.
Rightmove also benefits from financial strength (£390 million revenue, 70% margins, zero net debt) and the Google Cloud AI partnership, which should accelerate the sophistication of its data products over the coming years.
Where Chimnie fits in
Both Cotality and Rightmove are enterprise platforms with bespoke pricing and complex procurement processes. Neither offers transparent pay-as-you-go data access or self-serve API onboarding for smaller teams.
Chimnie provides an alternative for organisations that need broad property-level data without enterprise overhead. Its API delivers over 500 attributes per UK property at £0.05-0.15 per residential lookup and £0.45 per commercial property on a pay-as-you-go basis with ratecard volume discounts. That includes a free AVM with calibrated confidence intervals, rebuild cost estimates, environmental risk data, and planning permission intelligence (completing two years of national ingestion, launching imminently).
Where Cotality provides 135 data points per property and Rightmove excels at market signals, Chimnie covers the structural, environmental, planning, and commercial data layers that sit between them - with outbuildings mapped separately from main dwellings and data validated by over 150,000 consumer users on its research platform. API-first delivery with self-serve onboarding means evaluation takes hours, not months.
For proptech firms, SME lenders, insurance teams, or analysts who need property data without the cost or timeline of an enterprise contract, a free trial is a practical starting point.
Conclusion
CoreLogic (Cotality) and Rightmove operate in different territories with limited direct overlap. Cotality owns the surveying infrastructure and lending data layer. Rightmove owns the consumer demand intelligence layer. Procurement teams should evaluate each based on their primary use case rather than treating them as substitutes.
For teams whose requirements span valuation, building data, environmental risk, and planning intelligence - or who need flexible per-property access without committing to enterprise agreements - the market now offers credible API-first alternatives that complement either platform.
