GRANNY FLAT METERING

Building a granny flat and wondering how the tenant's electricity gets billed? There are two paths: a separate meter with its own retailer account, or a private sub-meter behind your existing supply. Each has different wiring, paperwork and cost implications — and the separate-meter path needs a Level 2 ASP to complete the metering and any supply works. Sydney Power Group handles granny flat metering end to end across Sydney, working directly with owners and granny flat builders.

Separate Meter vs Sub-Meter

A separate NMI-metered supply means the granny flat tenant opens their own account and pays their own bill — the cleanest arrangement for rentals, but it involves retailer applications, possible consumer mains works and metering by an authorised installer. A private sub-meter simply measures usage behind your main meter so you can on-charge the tenant; it's cheaper to install but you remain the account holder. We'll tell you honestly which suits your situation before quoting.

What the Works Involve

A separately metered granny flat typically needs capacity checked at the point of supply, an additional metering position on the meter panel (or a new panel), circuit separation so each dwelling is fed independently, and sometimes a switchboard upgrade or supply upgrade if the existing single-phase service can't carry both dwellings. We assess all of this in one site visit and quote the complete scope.

The Paperwork Path

For a separate meter, an application goes to the network distributor for the additional connection point, and a retailer is engaged to supply the new smart meter. As a Level 2 ASP we complete the connection works and coordinate both threads, so the meter is installed and energised without you chasing call centres. Solar on the main dwelling? We'll confirm how the arrangement affects your feed-in setup — our solar metering guide covers the basics.

For Owners, Investors & Builders

We work with homeowners adding a flat for family, investors building for rental income, and granny flat construction companies that want one reliable metering contractor across their builds — including temporary builders power during construction and final metering at handover. Duplex or dual-occupancy project instead? See duplex metering. Call 0466 125 125 or use the contact page for a fixed quote.