What does "commonhold" mean?

The freehold tenure of part of a multioccupancy building (typically a flat) with shared responsibility for common services.

Commonhold

Common synonyms include: coownership, framework, governance, joint ownership, shared ownership, system.

noun

noun ·Rare ·Advanced level

Noun

1
The freehold tenure of part of a multioccupancy building (typically a flat) with shared responsibility for common services. England, Wales, countable, uncountable

From common + hold.