Castle Hill in four facts
Houses, many owned outright
At the 2021 Census, 73.7% of occupied homes in the suburb were separate houses and 15.3% flats. 35.0% were owned outright and 22.9% rented.
Partly in The Hills Shire
Council's own suburb list marks Castle Hill as only partly inside The Hills Shire. Check your rates notice for your council.
Your outlet, your concrete
The Hills Shire asks owners to maintain the stormwater pipe and outlet to a legal point of discharge. Where there's kerb and gutter, that includes the concrete around the outlet.
Easements are private
Owners who benefit from or are burdened by an inter-allotment easement maintain it. Council isn't responsible unless the Section 88B instrument lists it as a benefiting authority.
When the easement pipe blocks
An inter-allotment drain is a private line, usually laid by the developer when the subdivision was built, so lots that can't drain to the street can still drain safely.
Council says it won't usually get involved in neighbour disputes over a blocked easement. The owners along it have to sort it out between them, ideally with one drainage plumber clearing the whole run. The Section 88B instrument for your subdivision shows who the easement benefits.
Replacing a hot water system in NSW
Swapping an existing hot water system for a new one doesn't need a Notice of Work in NSW. It does need a licensed plumber: NSW requires a contractor licence for all specialist work, plumbing included, whatever it costs.
Building Commission NSW also requires a tempering device whenever a hot water heater is replaced, whatever the type or location, and like-for-like swaps are no exception. Hot water at showers, baths, basins and bidets is limited to 50°C. See hot water replacement in Sydney and our page on NSW hot water discounts.
The sewer side
Your private wastewater pipe runs up to and includes its point of connection with Sydney Water's system, and Sydney Water notes it can extend beyond your boundary. For blockages, start at blocked drains in Sydney.
Our advice for Castle Hill
If stormwater backs up in heavy rain, check the easement pit on the low side before you blame your own pipes. If it's full of silt or roots, talk to the neighbours first, then have one plumber clear the whole line. For a new hot water system, check the tempering valve is written into the quote. Either way, we'll match you with a licence-checked specialist for that job.
