One register, one answer

Each check reads a single named public register and cites it. They are free, and they cover homes in England and Wales unless the register itself is England only.

• EPC rating

  Energy performance band from the MHCLG EPC register, by postcode.

• Council tax band

  Bands from the Valuation Office Agency register, by postcode.

• Crime

  Recorded crime near a postcode over the last 12 months, from Police.uk.

• Flood risk

  Flood zone and surface water risk from the Environment Agency (England).

• Radon

  Radon class 1 to 6 from the BGS and UKHSA Radon Potential Dataset.

• Listed building

  Listing status and grade from the National Heritage List for England.

• Conservation area

  Whether a postcode sits inside a conservation area, from planning.data.gov.uk.

• Japanese knotweed

  A five-question checklist to tell knotweed from its lookalikes, and where to find sightings maps.