What does 'Purpose Built' mean?

Purpose Built

Many properties in the UK are period houses which have been converted into apartments (and so called period conversions). To differentiate apartments that were built to be apartments, the term purpose built is often used. Some buyers see this as an advantage because conversions do not always have the sound proofing or build quality of purpose built properties.

Note purpose built does not necessarily mean New Build. Many Victorian and Georgian properties were built to be apartments.