aid: propertymark url: https://raw.githubusercontent.com/api-evangelist/propertymark/refs/heads/main/apis.yml name: Propertymark kind: company description: >- Propertymark is the United Kingdom's largest professional body for property agents, formed in 2017 from the merger of the National Association of Estate Agents (NAEA), the Association of Residential Letting Agents (ARLA), the Institute of Commercial and Business Agents (ICBA) and the National Association of Valuers and Auctioneers (NAVA), and representing "over 19,000 members" across residential sales, lettings, commercial property, inventories, auctions and valuation. Its home market is the United Kingdom - England, Scotland, Wales, Northern Ireland and the Channel Islands. In the property value chain it sits on the agent-accreditation and consumer-protection side, not the listings side: it publishes the Conduct and Membership Rules, operates a government-approved Client Money Protection scheme, runs Propertymark Qualifications as the sector's specialist awarding organisation, and lobbies government on estate and letting agency regulation. Its API posture is the flat, honest zero. There is no developer portal, no documented API, no SDK, no webhooks and no published machine-readable contract of any kind: developer.propertymark.co.uk, developers.propertymark.co.uk, api.propertymark.co.uk, data.propertymark.co.uk and standards.propertymark.co.uk all fail DNS resolution, and /openapi.json, /swagger.json, /api-docs, /api, /developers, /docs, /$metadata and /odata all return honest HTTP 404s from www.propertymark.co.uk. RESO is entirely absent - the site's own search returns "result: 0 of 0" for both "RESO" and "OData" - because the United Kingdom has no MLS and therefore no listing-data certification layer to be certified against; UK residential listings reach consumers through the Rightmove/Zoopla portal duopoly via agency CRM software, several of whose vendors (Reapit, Street, MRI Software, Dezrez, AgentOS, Coadjute, and Rightmove itself) appear in Propertymark's own Industry Supplier directory. What Propertymark does publish freely is its rulebook: the Propertymark Conduct and Membership Rules PDF downloads anonymously with no login and no EULA. Its only machine-readable surface is undocumented - an internal Preside CMS JSON endpoint behind the public Find an Expert member directory - and its member area is SAML-gated, returning HTTP 401. Genuinely open UK property data comes from HM Land Registry and Ordnance Survey, not from the agents' professional body. image: https://www.propertymark.co.uk/static/088fd899-9b36-4cd5-b685175e6c489b92/222x87_highestperformance__4a7c7e45a350/Propertymark-Company-logo.png tags: - Real Estate - United Kingdom - Industry Body - Estate Agents - Rentals - Property Management - Standards - Certification - Client Money Protection - Commercial Real Estate - Valuation - PropTech created: '2026-07-26' modified: '2026-07-26' specificationVersion: '0.19' apis: [] common: - type: VulnerabilityDisclosure url: security/propertymark-vulnerability-disclosure.yml - type: Security url: https://pixl8.com/en/vulnerability-disclosure-policy.html name: >- Vulnerability disclosure policy that Propertymark's own security.txt names as both Contact and Policy - operated by Pixl8, the agency that builds and runs the Preside CMS site (HTTP 200, 30,258 bytes on 2026-07-26) - type: DomainSecurity url: security/propertymark-domain-security.yml - type: WellKnown url: well-known/propertymark-well-known.yml name: >- Harvested /.well-known/ surface - security.txt is the only document published; OIDC discovery, RFC 8414 and RFC 9727 api-catalog all return HTTP 404 - type: Conformance url: conformance/propertymark-conformance.yml name: >- Measured conformance and measured absence across OpenAPI, AsyncAPI, GraphQL, OData, RESO, OAuth2/OIDC, SAML, RFC 9116 and RFC 9727 - type: LLMsTxt url: llms/propertymark-llms.txt name: >- Generated llms.txt for Propertymark - the provider publishes none (/llms.txt returns HTTP 404) - type: Website url: https://www.propertymark.co.uk/ - type: About url: https://www.propertymark.co.uk/about-us.html name: About Propertymark - formed 2017 from NAEA, ARLA, ICBA and NAVA; over 19,000 members - type: Standards url: https://www.propertymark.co.uk/professional-standards.html name: Propertymark Professional Standards - type: Standards url: https://www.propertymark.co.uk/professional-standards/rules.html name: Propertymark rules and obligations for members - type: Rules url: https://www.propertymark.co.uk/asset/1B740FBB%2D8CC0%2D4ED4%2D8A5BD9B5D006D765/ name: >- Propertymark Conduct and Membership Rules (PDF, 37 pages, 672,154 bytes) - downloaded anonymously with HTTP 200 on 2026-07-26, no login and no EULA - type: Certification url: https://www.propertymark.co.uk/professional-standards/rules/cmp.html name: Client Money Protection (CMP) scheme rules - type: Certification url: https://www.propertymark.co.uk/professional-standards/cmp-applications.html name: Client Money Protection scheme applications - type: Directory url: https://www.propertymark.co.uk/find-an-expert.html name: >- Find an Expert - public directory of Propertymark member agent branches. No documented API; the page is backed by an undocumented Preside CMS JSON endpoint (see review.yml) - type: Partners url: https://www.propertymark.co.uk/membership/industry-suppliers.html name: >- Industry Suppliers - 42 listed supplier companies including Reapit, Street, MRI Software, Dezrez, AgentOS, Coadjute and Rightmove; the only published technology route into Propertymark - type: Membership url: https://www.propertymark.co.uk/membership.html - type: SignUp url: https://www.propertymark.co.uk/membership/join.html name: Join Propertymark - membership application for agents, not a developer signup - type: Login url: https://www.propertymark.co.uk/login.html name: Member login; /members.html returns HTTP 401 anonymously, SAML SSO error page at /samlssobadrequest.html - type: Education url: https://www.propertymark.co.uk/pmq.html name: Propertymark Qualifications - the sector's specialist awarding organisation - type: Portal url: https://learnerportal.propertymark.co.uk/ name: >- Propertymark Learning Learner Portal - a React SPA on an Nhost/Hasura stack; its AWS API Gateway backend returns HTTP 403 "Missing Authentication Token" anonymously - type: Complaints url: https://www.propertymark.co.uk/professional-standards/complaints.html - type: Policy url: https://www.propertymark.co.uk/policy.html name: Propertymark policy and campaigns across England, Scotland, Wales, Northern Ireland and the Channel Islands - type: NewsAndReports url: https://www.propertymark.co.uk/news-reports.html - type: Blog url: https://www.propertymark.co.uk/news-reports/latest.html name: >- Latest news - Propertymark's running commentary and market intelligence. No RSS or Atom feed is published; /rss and /feed both resolve to the site's HTTP 404 page - type: Podcast url: https://www.propertymark.co.uk/news-reports/podcast.html - type: Support url: https://www.propertymark.co.uk/membership/helpline.html name: >- Propertymark member helpline - the only support channel published; there is no developer support, no forum and no ticketing surface - type: Referrals url: https://www.propertymark.co.uk/advantage/connect.html name: >- Connect, powered by Propertymark - agent-to-agent lead referral platform run by Propertymark Connect Ltd, "supported by REACH, the growth accelerator programme of Second Century Ventures, a global technology fund backed by the National Association of REALTORS" - type: Jobs url: https://jobs.propertymark.co.uk/ - type: SecurityTxt url: https://www.propertymark.co.uk/.well-known/security.txt name: security.txt pointing at the Pixl8 vulnerability disclosure policy (Pixl8 builds the Preside CMS site) - type: VulnerabilityDisclosure url: https://pixl8.com/en/vulnerability-disclosure-policy.html name: Vulnerability disclosure policy referenced by Propertymark's security.txt - type: Sitemap url: https://www.propertymark.co.uk/sitemap.xml name: 261 URLs, HTTP 200 - type: Robots url: https://www.propertymark.co.uk/robots.txt - type: PrivacyPolicy url: https://www.propertymark.co.uk/privacy-policy.html - type: CookiePolicy url: https://www.propertymark.co.uk/cookie-policy.html name: >- Cookie policy. Propertymark publishes no website terms-of-service page - /terms.html, /terms-and-conditions.html, /terms-of-use.html and /terms-conditions.html all return HTTP 404 - type: Contact url: https://www.propertymark.co.uk/contact.html name: Contact Propertymark; the site's obfuscated footer address is help@propertymark.co.uk - type: YouTube url: https://www.youtube.com/channel/UCwPUqKRQZ7ezBwbc0yrOjxQ - type: LinkedIn url: https://www.linkedin.com/company/propertymark/ - type: Facebook url: https://www.facebook.com/PropertymarkUK/ - type: Instagram url: https://www.instagram.com/propertymarkuk maintainers: - FN: Kin Lane email: kin@apievangelist.com