The Royal Institution of Chartered Surveyors (RICS) has launched new guidance on the measurement of land for development projects. Titled ‘Measurement of Land for Planning and Development Purposes’, according to the RICS, the new guidance is ‘intended to bring consistency in the use of the terminology applied to different areas of land for this purpose’ across the world.

The guidance provides clear definitions for measurements widely used in the property and built environment sectors. These include Land Ownership Area (LOA), Site Area (SA), Net Development Area (NDA), Plot Ratio (PR) and Site Coverage (SC).

The most interesting aspect – and the key difference to existing practices – is the calculation of gross density against the Site Area as a measure. Net Developable Acre (NDA) is a term that has widely been used as a headline figure in relation to a site, but the guidance states that this should now be used to provide an additional and complementary metric for understanding the intensity of development of a site, with calculations of density to be expressed in terms of Gross Density (based on SA).

For land owners, the new guidance should make little difference in practice. In a field that is often considered laden with terminology, it may be helpful that the guidance now sets out globally recognisable definitions for planners, surveyors, developers, architects, government and legal administrators around the world to adhere to.

The full guidance can be accessed on the RICS website here.

Preston Office
Telephone: 01772 458866
Blackburn Office
Telephone: 01254 260196
Clitheroe Office
Telephone: 01200 320040
Lancaster Office
Telephone: 01524 899850
Lea Hough is a trading name of Lea Hough & Co LLP, which is a Limited Liability Partnership registered in England and Wales under partnership number OC306054.
Registered Office: 7 Ferry Road, Office Park, Preston, PR2 2YH.