In PPS3 it states that the Local Planning Authorities should identify sufficient specific
deliverable sites to deliver housing in the first five years. To be considered deliverable, sites should, at the point of adoption of the relevant Local Development Document:
- Be Available - the site is available now.
- Be Suitable - the site offers a suitable location for development now and would contribute to the creation of sustainable, mixed communities.
- Be Achievable - there is a reasonable prospect that housing will be delivered on the site within five years.

The delivery of the sites in five years should be carefully considered and adhere to PPS3

PPS3 also provides guidance to encourage residential developments to take place with particular reference to transport. At paragraph 16 PPS3 makes particular reference to asserting that proposed development should be: - "easily accessible and well connected to public transport in the community, facilities and services."