Utilities & siteworks
Services & site connections
A granny flat lives or dies on its connections. Water, sewer, power and stormwater all have to reach the rear of the lot, and decisions about shared versus separate metering ripple into how rent, bills and tenancy arrangements work for years afterwards. This scope runs the utility footwork as part of the build rather than leaving it as a loose end.
Scope
What this covers
Trenching and conduit routes planned around gardens, trees and existing paving
Sewer connection design, including pump solutions where falls are against you
Electrical supply arrangements, with separate metering where the owner elects it
Stormwater capture and lawful discharge from the new roof area
NBN and communications provisioning to the second dwelling
Timing
When it's needed
Connection design belongs in the approval documentation, not the construction phase, drainage in particular can reshape the siting. Owners intending a formal tenancy usually elect separate power metering early, since retrofitting separation after completion costs far more than provisioning it during the build.
A backyard build puts a working site inside a family property: keep children and pets away from trenches, stacked materials and the work zone even outside work hours, and never use ladders or scaffolds left on site. Flag any open excavation or unsecured fencing to the site contact the moment you see it.
Quote variables
What shapes the scope
Fall of the land and whether sewer drainage needs pumping
Trench distance from street or main-house service points
Shared versus separate metering elections
Reinstatement of lawns, paths and planting after trenching
Granny flat construction is residential building work under NSW law and must be carried out by a builder holding a current NSW Fair Trading contractor licence, under a written contract, with home building compensation cover in place for work above the insurance threshold before a deposit is taken. Licence details can be checked in minutes on the public online register: do that for any builder you deal with, whatever website introduced them.
Granny flat services
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Send through the job details and we'll connect you with a licensed provider who can quote this work.
If this is an emergency or anyone is at immediate risk, contact the relevant emergency service or your network or utility operator directly instead of using this form.