As a guide, once the slab is poured onsite, the construction process for a single-storey granny flat can take 15-18 weeks to complete. See our guides to building a Granny Flat on the Central Coast, Newcastle, Lake Macquarie and Hunter Region.
As a guide, once the slab is poured onsite, the construction process for a single-storey granny flat can take 15-18 weeks to complete. See our guides to building a Granny Flat on the Central Coast, Newcastle, Lake Macquarie and Hunter Region.