If a residential lease is extended outside the Leasehold Reform, Housing and Urban Development Act 1993 (LRHUDA 1993) in circumstances where there is a headlease with insufficient years to grant the extension, the HM Land Registry (HMLR) states that the headlease becomes an underlease and the lease extension is a concurrent lease. In this case, the HMLR has registered the underlease (ie original headlease) on the new flat lease title. The flat lease is registered against the freehold title, not the underlease title. A lease extension under LRHUDA 1993 does not result in the same entries being entered by the HMLR. Where the lease extension is granted outside of LRHUDA 1993 and registered as above, what are the implications of this and does it have any practical effect, eg if the headlease become an underlease does that entitle the tenant of the underlease to occupation?