Liz- have you taken legal advice on your reading of the reference to “access to a public highway”, regarding whether a plot is considered to be serviced? If you have a pilot site(s) which include serviced plots that are connected to a public highway via an unadopted private road, and the plots have connections to electricity, water and waste water, the plots are deemed ‘serviced’. If this is not your understanding, there is scope to ask DCLG to clarify this as part of the drafting of any guidance or, possibly, secondary legislation to accompany the new legislation when it is commenced. If you can’t wait then ask for written clarification.