BOPAS provides assurance to the lending community that innovatively constructed properties, against which they may be lending, will be sufficiently durable as to be readily saleable for a minimum of 60 years.

Impeccable pedigree


BOPAS is a joint initiative from BLP, Buildoffsite, The Royal Institution of Chartered Surveyors (RICS), and Lloyd’s Register; in consultation with the Council of Mortgage Lenders (CML) and the Building Societies Association (BSA). 

Many lenders have contributed to developing the methodology, including: 

  • Lloyds TSB Group (including HBOS)
  • Nationwide
  • RBS
  • Santander 

The Assurance Scheme comprises:

  • A durability and maintenance assessment (carried out by BLP)
  • A process accreditation
  • A web-enabled database comprising details of assessed building systems, registered sites and registered/warranted properties

Case study

For more information, visit the BOPAS website.

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