Understanding Your Property Passport Completion Score — What It Measures and Why It Matters

What is the Completion Score?

The Completion Score is a percentage that indicates how complete and verified your property’s digital record is on Property Passport UK. It is calculated from two components:

1. Automatically verified data — information drawn directly from official sources (HM Land Registry, EPC Register, Ordnance Survey, Environment Agency). This data is verified by source, not by the owner.

2. Owner-uploaded documents — documents, certificates, and records uploaded by the property owner to the document vault. These add to the Completion Score when they cover categories that are currently missing.

What Contributes to the Score?

Official data (auto-populated):

• Land Registry title registered: confirms ownership
• EPC certificate present: energy efficiency rating verified
• UPRN confirmed: property is uniquely identified in official records
• Sold price history: transaction history from HMLR
• Flood risk assessment: Environment Agency classification

Owner-uploaded documents:

• Planning permissions for extensions or alterations
• Building regulations completion certificates
• FENSA/CERTASS glazing certificates
• Gas safety certificates and service history
• EICR (electrical installation condition report)
• Structural engineer’s reports or surveys
• Damp-proofing and timber treatment guarantees
• Leasehold documents (for flats and leasehold houses)

Each document category has a weight in the overall score. Categories that represent higher-risk or higher-value information carry more weight than minor items.

Why a Higher Score Matters

For sellers: A high Completion Score demonstrates that the property has been well-maintained and properly documented. Buyers and their solicitors can see at a glance that the key documents are in order, which reduces enquiries and speeds up conveyancing.

For landlords: Tenants are increasingly interested in the documented history of a property — particularly energy efficiency, boiler history, and electrical condition. A high Completion Score builds confidence.

For buyers: The Completion Score gives a quick indication of how much documentary evidence the seller has available. A low score does not mean the property has problems — it may simply mean the owner has not yet digitised their records.

For conveyancers and agents: Professionals can request secure access to the document vault, allowing them to review documents before instructing searches or drafting contracts.

Improving Your Score

1. Check what is missing — the Completion Score dashboard shows which categories are empty

2. Locate existing documents — many are in a paper file from when you bought or from works contractors

3. Upload to the vault — PDF scans or photographs are accepted for most document types

4. Request official documents — HM Land Registry official copies, EPC certificates, and UPRN lookups are all available online

Most properties can reach 70–80% completion within a few hours of document gathering.