Do leases have to be identical?

[1stFlat22]

We are in the process of buying a ground floor maisonette in a converted terraced house, there is only one other flat (upstairs).

We are being granted a new lease but the upstairs lease was granted in 1984 and our solicitors says the latter is not been granted on similar terms to ours (newer).

How can this be remedied?

What if the seller (freeholder) doesn't agree?

[Lawcruncher]

There is no requirement for tenancies of the same building to be in the same form.

Ideally the leases should dovetail on matters like easements. There is though no reason why each lease should have the same covenants and conditions.

On the grant of the first lease the landlord may have covenanted with the tenant that the lease of the maisonette would be on the same terms, but that does not give the proposed tenant the right to insist that his lease is on the same terms.

[AndrewDod]

There is nothing to "remedy" - unless there is a conflict of some sort (service charges add to more than 100%, demises overlap).