6.1 Method of Measurement
Police stations may be valued by either the rental/comparative method or by reference to the contractors basis. The basis of valuation will determine the method of measurement required: Net Internal Area (NIA) in respect of the rental/comparative method and Gross Internal Area (GIA) in respect of the contractors basis. It will be necessary to ascertain the basis of valuation prior to inspection but in case of doubt sufficient measurement and survey information should be recorded to enable valuations to be carried out using either basis.
6.2 Description
Hereditaments occupied by the police forces are extremely varied in terms of construction, layout and size, characteristics which are largely dictated by their function.
The smallest police stations will cater for only limited public access, consisting of a reception area with enquiry desk and a small office with WC and mess facilities but with no cells/custody suite. At the other extreme regional HQs will contain a full range of facilities which may include extensive offices, staff facilities, custody suite, identification parade facilities, victim examination suites, scene of crime suites, major incident facilities, training facilities including rifle ranges, garages, workshops of various types, stables and dog training or kennel facilities. Some of the more specialised facilities will normally be found as separate stand-alone hereditaments, these including purpose-built custody suites.
The majority of police hereditaments are purpose-built. Exceptions are stations housed in shop units. There are also a small number of police stations, which are known to have been physically adapted from office premises acquired on the open market. The considerable range of administrative work undertaken by police forces may in some cases lead to occupation of ordinary office hereditaments.
6.3 Requirements
a) Unit of Assessment
The principles referred to in Rating Manual Section 2 Part 2 2. Identification of the hereditament should be adhered to. In cases of difficulty advice from the Technical Advisor/NVU specialist should be obtained. The normal approach should be applied to the identification of hereditaments and no attempt should be made to aggregate property which on normal rating principles constitutes more than
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