Non-payment of rent, and forfeiture

[artist]

Non payment of rent is specifically excluded from s146 of the Law of Property Act 1925 so which law does it come under and what powers does it give the landlord regarding forfeiture of long leasehold properties?

[jeffrey]

Common-law rules, preserved by s.146, and partly by Statute- see s.167/168/169 of Commonhold and Leasehold Reform Act 2002, for example.