Postal Address Data vs. Property-Level Compliance Registers
In the United Kingdom, a postcode does much more than route mail. While Royal Mail’s Postcode Address File (PAF) links each postcode to its official delivery points (building number or name, street, post town, and county)—the dataset used by UKPostcodes.org inside HubSpot CRM—a separate network of statutory and government-authorised registers indexes individual residential properties by postcode and address line.
When a house or flat in England or Wales is sold, remortgaged, or transferred through probate, conveyancing solicitors check both the postal address and the property’s compliance history for alterations and installations required on the Law Society TA6 Property Information Form.
Which Property Records Are Indexed by a UK Postcode?
- Royal Mail PAF (Postal Address File): The canonical UK postal address, building name/number, thoroughfare, locality, post town, and outward/inward postcode.
- Energy Performance Certificates (EPC Register): Every domestic EPC lodged in England and Wales (valid for 10 years), recording the energy efficiency band, floor area, and assessment date.
- Window & Door Installations (FENSA & CERTASS): Building Regulations compliance certificates for replacement windows, roof lights, and external glazed doors fitted since 1 April 2002.
- Boiler & Gas Appliance Notifications (Gas Safe Register): Building Regulations compliance notifications for gas boilers and appliances installed since April 2009 (with earlier records held in historic CORGI archives).
- Electrical Part P Notifications (NICEIC, ELECSA & NAPIT): Building Regulations compliance records for consumer unit (fuse box) replacements, rewires, and new circuits installed since 1 January 2005.
- Microgeneration & Renewables (MCS): Certificates for solar PV panels and air-source or ground-source heat pumps.
- Local Authority Building Control: Completion certificates and decision notices held by the local council for extensions, loft conversions, garage conversions, and structural alterations.
How to Check Missing Property Certificates by Postcode
Whereas postal address lookup returns an instant list of street addresses for a postcode, building compliance records are fragmented across eight separate national schemes and more than 300 local councils in England and Wales—and many homeowners do not know which scheme their original installer belonged to.
If you are selling or remortgaging a home and need to check which certificates are required or order official replacement copies by postcode, you can use the UK property certificate checklist or run a full multi-register search at My Certs, which checks FENSA, CERTASS, Gas Safe, NICEIC, ELECSA, NAPIT, MCS, the EPC register, and local council building control in one search.