A landlord's notice under section 125 shall state as regards service charges (excluding, in the case of a flat, charges to which subsection (2) applies)—
the landlord's estimate of the average annual amount (at current prices) which would be payable in respect of each head of charge in the reference period, and
the aggregate of those estimated amounts,
and shall contain a statement of the reference period adopted for the purpose of the estimates.
A landlord's notice under section 125 given in respect of a flat shall, as regards service charges in respect of repairs (including works for the making good of structural defects), contain—
the estimates required by subsection (3), together with a statement of the reference period adopted for the purpose of the estimates, and
a statement of the effect of—paragraph 16B of Schedule 6 (which restricts by reference to the estimates the amounts payable by the tenant), andsection 450A and the regulations made under that section (right to a loan in respect of certain service charges).
The following estimates are required for works in respect of which the landlord considers that costs may be incurred in the reference period—
for works itemised in the notice, estimates of the amount (at current prices) of the likely cost of, and of the tenant's likely contribution in respect of, each item, and the aggregate amounts of those estimated costs and contributions, and
for works not so itemised, an estimate of the average annual amount (at current prices) which the landlord considers is likely to be payable by the tenant.