Starter contract

real_estate_property

15 rules · plain YAML · starts in observation mode

OpenDQV Cloud starter template (v0.1) — your tenant inherits this baseline. First customer edit creates v1.0 in your audit trail; pin by yaml_hash for replay. Real estate property listing validation for UK residential and commercial property pipelines. Enforces UK postcode format, RICS property type taxonomy, Energy Performance Certificate (EPC) rating validation (A-G scale, mandatory for all residential lettings under the Energy Efficiency (Private Rented Property) (England and Wales) Regulations 2015 and for sales since 2008), council tax band validation (England/Wales A-H), legal tenure classification (freehold/ leasehold/shared ownership), and listing lifecycle status. Prevents uncompliant property records from entering Rightmove/Zoopla feed APIs, RICS valuation databases, and HM Land Registry submission pipelines.

These are starting points you own. Every rule below ships in the trial, starts in observation mode, and is yours to read, edit, or delete from day one. Rules that reference a lookup list (lookup_file) validate against reference data you control in your tenant.
Rules as at 29 August 2026 — starting points you own, not a maintained regulatory feed. We correct errors in these samples; tracking regulatory change in your active contracts is yours.

Rule	Field	Severity	What it enforces (the message your team sees)
property_id_required	property_id	error	property_id is required
address_required	address	error	address is required
postcode_required	postcode	error	postcode is required
postcode_format	postcode	error	postcode must be a valid UK postcode
property_type_required	property_type	error	property_type is required
property_type_values	property_type	error	property_type must be a standard RICS/portal type: detached, semi_detached, terraced, end_of_terrace, flat, maisonette, studio, bungalow, detached_bungalow, semi_detached_bungalow, cottage, townhouse, commercial, land, farm, houseboat, park_home
bedrooms_range	bedrooms	error	bedrooms must be between 0 and 100
asking_price_min	asking_price	error	asking_price must be > 0 — a zero asking price is a listing error or system-integration fault and would be queried by portal feed QA (Rightmove / Zoopla) before publication
listing_date_format	listing_date	error	listing_date must be a valid date (YYYY-MM-DD)
listing_status_values	listing_status	warning	listing_status must be one of: for_sale, under_offer, sold_stc, exchanged, completed, withdrawn, to_let, let_agreed, let
tenure_values	tenure	warning	tenure must be one of: freehold, leasehold, shared_ownership, commonhold, feudal, unknown (leasehold requires remaining term disclosure under NTSELAT material information guidance)
epc_rating_required	epc_rating	warning	epc_rating should be provided
epc_rating_values	epc_rating	warning	epc_rating must be A, B, C, D, E, F, G, exempt, or not_required — F/G rated properties cannot be let under MEES Regulations 2018
council_tax_band_values	council_tax_band	warning	council_tax_band must be A through H (England/Wales) or A through I (Scotland), or unknown
agent_id_required	agent_id	error	agent_id is required

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