Typical uses by Luxembourg banks
Three main use cases: (1) credit pre-qualification — embed an instant estimation into the online application flow, (2) automated valuation of existing mortgage portfolios for prudential CRR LTV, (3) automated scoring of a collateral submission for a non-mortgage loan backed by real estate.
TEGOVA EVS 2025 compliance
The API returns a Market Value estimate in the EVS 1 sense (European Valuation Standards 2025 / Charter 5th ed.). Combined methods — comparison, capitalisation, hedonic — are those recognised by the TEGOVA framework. Exportable reports detail the methodology to trace each credit decision.
MLV and prudential CRR ratio
For mortgage portfolios subject to CRR (Capital Requirements Regulation), the API also provides a Mortgage Lending Value computed according to EBA guidelines. Prudential discount applied to Market Value, respecting the sustainable value principle over the loan duration.
Frequently asked questions
Is the API consistent with a TEGOVA expert valuation?
The API provides a TEGOVA-compliant indicative estimate based on public data. For a binding report (secured loan, litigation), a report signed by a qualified appraiser remains necessary — but the observed gap between the two is typically below 8% on the 100 municipalities covered.
Is data stored?
No client data (precise address, prospect identity) is stored on tevaxia's side unless explicitly requested in your contract. Only technical logs (anonymised requests, return codes) are kept 90 days for billing and audit.
What update frequency for market data?
Prices per m² are updated quarterly via Observatoire de l'Habitat publications (data.public.lu). Tax scales (Bëllegen Akt, VAT, duty rates) are updated within 48 hours after publication in Mémorial A.
Can the API be used without a tevaxia.lu account?
Yes. B2B integration uses a dedicated API key and a technical agreement. Your tevaxia.lu user account remains optional and separate from your server integration.