Site plans for Carnarvon, Western Australia: drawn in minutes
Need a site plan for a shed, patio, carport, deck, pool or granny flat in Carnarvon? Site plans and assessments in minutes, drawn over the real lot.
Building in Carnarvon
Sea containers count as outbuildings in the Shire of Carnarvon, and they share one floor-area cap with every shed on the lot. In the Residential and Tourism zones that cap is moderate, with set wall and overall heights, a small margin to suit a maker's standard sizes, a place behind the house and non-reflective colours. Rural Residential and Enterprise lots get a much larger allowance and taller walls.
In both cases a shed goes up only once a house has development approval, and a heritage place always needs approval. Outside these, siting follows the state's housing codes through the Shire's planning scheme. Carnarvon advertises its current development applications, and the state's mapping for bushfire, flood, landslide, heritage and native vegetation applies.
What we hold for Carnarvon
For Carnarvon we hold the council’s own rules for:
- sheds, garden sheds, garages and carports
- patios, pergolas, louvred roofs, decks and shade sails
- pools, fences and retaining walls
- granny flats
- driveways, water tanks and shipping containers
At each lot we check the state’s mapping for flood, bushfire, landslide, heritage and native vegetation. We also read the council’s application register for past applications on the lot.
Last checked
How approval works in Western Australia
In Western Australia the local government is the permit authority and issues the building permit, and an application can arrive with the design already checked by a private registered building surveyor, who issues a certificate of design compliance. Some small structures need no building permit, but every structure still has to meet the planning side: on a house lot, the Residential Design Codes and the local planning policies. Work that meets their deemed-to-comply standards, on a place that is not heritage protected, needs no planning approval; work that does not goes to the local government as a development application, judged against the design principles. The site plan shows the structure's distance to each boundary, its wall height and the open space left on the lot. The lot's density coding decides how close a structure can go, as per the Residential Design Codes (R-Codes) and the Building Act 2011.
Drawing the plan
Type the property address, the lot’s real boundaries load from official land records in Western Australia, and you place the structure over the aerial view. The plan prints to scale with boundary lengths, setback distances, a north arrow, a legend, a site coverage table and a title block, as the site plan for a building permit or a development application.
What a certifier in Carnarvon will ask you
How high can a retaining wall and a fence go?
Each takes its own height test, and a retaining wall carrying a fence has its own approval. Both heights go on the sheet for the certifier to read together.
How big can a granny flat be, and how far from the house?
The council caps a granny flat’s floor area, and some councils also limit how far from the house it may stand. The sheet prints the floor area and dimensions the distance to the house.
Is the lot in an overlay, and what is the zoning?
A flood, bushfire, heritage or character overlay can bring a planning approval on top of the building approval, and the zone decides which of the council’s rules apply. The mapped overlays are read at the lot as the structure goes on the plan.
How deep is the pool?
The depth decides whether the water needs a barrier, and the barrier has to be in place before the pool is filled. The barrier is what gets inspected, so the sheet shows where it runs and every gate with its swing.
The figures for your own lot are read in a minute, from its address.
Every question a certifier asks is on the Western Australia page.
Changes on the way
Rule changes announced for Carnarvon, for Western Australia and for the whole country, the state and national lines in full on the Western Australia page, each with the page that says so and the day we read it.
In the next 90 days
Nothing due in the next 90 days that we know of.
Later
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Residential Design Codes (review), consultation draft
Source wa.gov.au, read
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Building Regulations 2012, Schedules 4 and 5 (Building Amendment Regulations (No. 2) 2026)
Source legislation.wa.gov.au, read
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Building Code of Australia 2025, WA addition (Industry Bulletin 174)
Source wa.gov.au, read
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National Construction Code 2025
Source ncc.abcb.gov.au, read
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ABCB Housing Provisions 2025 (with NCC 2025)
Source abcb.gov.au, read
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AS 1926.1:2024 Swimming pool safety barriers
Source ncc.abcb.gov.au, read
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NCC 2025 Housing Provisions Part 10.8
Source ncc.abcb.gov.au, read
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NCC 2025 Housing Provisions Part 9.2
Source ncc.abcb.gov.au, read
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NCC 2025 Volume Two Part H6, Specification 42 and Housing Provisions Section 13
Source ncc.abcb.gov.au, read
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NCC 2025 Volume Two Part H8
Source ncc.abcb.gov.au, read
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Residential Design Codes (review), changes in effect
Source wa.gov.au, read
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National Construction Code, residential pause
Source treasury.gov.au, read
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National Construction Code, next edition
Source abcb.gov.au, read
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No date yet
Bushfire Prone Areas (OBRM-026)
Source services.slip.wa.gov.au, read
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No date yet
AS 3959:2018 Construction of buildings in bushfire prone areas
Source store.standards.org.au, read
-
No date yet
AS 4678-2002 Earth retaining structures
Source store.standards.org.au, read
Date passed, next step not seen yet
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Building Code of Australia 2025, WA additions for private swimming pools (Industry Bulletin 175)
Source wa.gov.au, read
What we changed for Carnarvon
The rules we hold for Carnarvon, each brought up to date from the page it names, newest first. The summary above reads from them.
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Council rules
Read from carnarvon.wa.gov.au
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Council rules
Read from carnarvon.wa.gov.au
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Council rules
Read from WA R-Codes Volume 1
Council notices
No story for Carnarvon yet.
The sources we read for Carnarvon
No page of Carnarvon’s own is on our watch yet.
Follow Carnarvon in a feed reader: www.rapidsiteplan.au/site-plan/carnarvon/feed.xml. Every council and state has one, listed on rule changes by council and state.
RapidSiteplan is design software: you confirm details, measure on site and your certifier or council makes the approval decision. The rule above is general information, not building or legal advice. Boundaries shown are indicative, a surveyor is recommended where exact positions matter.
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