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Net Lettable Area

Net Lettable Area

Net Lettable Area tenancy applies to:

  • office buildings;
  • office and business parks.

Definitions
The net lettable area of a building is the sum of its whole floor lettable areas.

The whole floor net lettable area is calculated by:

  • taking measurements from the internal finished surfaces of permanent internal walls and the internal finished surfaces of dominant portions of the permanent outer building walls.
  • Included in the lettable area calculation are:
  • window mullions;
  • window frames;
  • structural columns;
  • engaged perimeter columns or piers;
  • fire hose reels attached to walls;
  • additional facilities specially constructed for or used by individual tenants.

Excluded from the lettable area of each tenancy are:

  • stairs;
  • access ways;
  • fire stairs;
  • toilets;
  • recessed doorways;
  • cupboards;
  • telecommunications cupboards;
  • fire hose reel cupboards;
  • lift shafts;
  • escalators;
  • smoke lobbies;
  • plant/motor rooms;
  • tea rooms and other service areas;
  • lift lobbies where lifts face other lifts, blank walls areas;
  • areas set aside for the provision of all services, such as electrical or telephone ducts and air conditioning risers to the floor, where such facilities are standard facilities in the building;
  • areas dedicated as public spaces or thorough fares such as foyers, atria and access ways in lift and building service areas;
  • areas and access ways set aside for use by service vehicles and for delivery of goods, where such areas are not for the exclusive use of occupiers of the floor or building;
  • areas and access ways set aside for car parking;
  • areas where there is less than 1.5 metre height clearance above floor level – these spaces should be measured and recorded separately;

Note: If the occupier/tenant occupies the whole building, areas and access ways set aside for use by service vehicles and for delivery of goods, where such areas are for the exclusive use of occupiers of the floor or building, should be measured by the NLA method if so requested and recorded separately.

Net Lettable Area – Sub Divided Floors
Same as above but measure to the centre line of inter-tenancy walls or partitions except where the walls or partitions adjoin public areas such as lobbies and corridors, in which case measure to the line of the dominant portion of their public area faces.

Treatment of Balconies, Verandahs etc.
Balconies, terraces, planter boxes, verandahs, awnings and covered areas should be excluded from tenancy area calculations, but may be separately identified for the purpose of negotiating rentals.

Areas should be measured to the inside face of the enclosing walls or structures. The outer edge of the awning or covered area is the defined edge.

Some of the above information was sourced from Property Council of Australia.