insert
"relevant solar building envelope" means—
(a) for a development of a single dwelling on a block in an estate development plan approved under a development application on or after 5 July 2013—the solar building envelope that applies to the block under the territory plan
, Residential Zones—Single Dwelling Housing Development Code; or
(b) for a development of multi unit housing on a block in an estate development plan approved under a development application on or after 5 July 2013—the solar building envelope that applies to the block under the territory plan
, Residential Zones—Multi Unit Housing Development Code.