Tiny houses in NSW: what the planning system actually says
NSW has no statutory definition of “tiny house.” Whether you need council approval — and what kind — depends entirely on what your structure physically is and how it connects to the land. The same object can be a caravan, a manufactured home, or a building depending on four factors a court will assess.
Legal classification spectrum
The same physical structure can fall anywhere on this spectrum depending on its characteristics. NSW courts use a “substance over characterisation” test.
Registered caravan / THOW
Trailer-registered, towable, self-contained, under 2.5m wide
Approval: No DA required (Reg 77 exemption)
Russell v Camden [2018]
Mid-range: semi-permanent tiny home
On stumps, partial utility connections, skid-mounted, no registration
Approval: Grey zone — fact-dependent
No definitive case law
Manufactured home on individual lot
Prefabricated off-site, transported in sections, permanently installed
Approval: DA + s68 LG Act + building certification
LG Act 1993 + Housing SEPP
Permanent modular / secondary dwelling
Fixed to foundations, full utility connections, verandah/deck attached
Approval: Full DA required (or CDC if qualifying)
Ogilvie v Rovest [2023]
Why “tiny house” means nothing in NSW planning law
The NSW planning system classifies structures by their physical characteristics and relationship to the land — not by what the owner calls them. There is no “tiny house” category in the Environmental Planning and Assessment Act 1979, the Local Government Act 1993, or the Housing SEPP 2021. Your tiny home will be treated as one of the following:
- A caravan — max 2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes. Governed by the LG Act, not the EPA Act. Exempt from DA under Regulation 77 in specific circumstances.
- A manufactured home — self-contained dwelling constructed mostly off-site, not registrable as a vehicle. Governed by LG Act 1993 and Housing SEPP Parts 8-9.
- A secondary dwelling — max 60m2 internal floor area, ancillary to a principal dwelling. Governed by Housing SEPP 2021. CDC pathway available on qualifying lots.
- A building — anything permanently attached to land that doesn't fit the above categories. Full DA required.
What approval pathway does your tiny home need?
Work through this from top to bottom. The first “yes” that matches your situation is your most likely pathway — but council interpretation varies, and the grey zone cases are genuinely uncertain.
Decision tree: what approval does your tiny home need?
Is it trailer-registered and genuinely towable?
Yes
Likely a caravan. Reg 77 exemption may apply — no DA needed if occupied by household members on owner-occupied land.
No
Continue below.
Is it permanently fixed to the ground with full utility connections?
Yes
Likely a building or secondary dwelling. Needs DA (or CDC if it meets Housing SEPP criteria on a 450m2+ lot without special overlays).
No
Continue below.
Was it constructed mostly off-site and transported in sections?
Yes
Likely a manufactured home. On individual lots: needs DA + s68 LG Act approval + building certification (triple consent). On manufactured home estates: streamlined consent under Housing SEPP Part 8.
No
Continue below.
Does it sit in the grey zone — skid-mounted, partial connections, no registration?
Yes
Fact-dependent. Council will apply the Ogilvie four-factor test: site attachments, portability, dimensions vs caravan limits, stated intent. Seek professional advice before installing.
No
Your structure may not fit NSW planning categories. Contact council before proceeding.
The two court cases that define the boundaries
Russell v Camden Council [2018] NSWLEC 1159
A family installed a renovated caravan in their backyard for their daughter. Connected to water, electricity, and sewer. Council issued a removal order, calling it an unlicensed structure requiring DA.
The Land and Environment Court ruled for the homeowner. The court held that trailer registration and physical capability of being towed were determinative — not appearance, stationary placement, or utility connections. A registered caravan occupied by household members on owner-occupied land is exempt under Regulation 77.
Ogilvie v Rovest Holdings [2023] NSWLEC 17
A developer installed prefabricated modular units (14.4m x 3.4m) on piers, connected to utilities, with attached verandahs.
The court ruled against the developer. Applying “substance over characterisation,” the court established a four-factor test: (1) site attachments, (2) portability, (3) dimensions compared to caravan limits, (4) stated intent for relocation. Permanent installation plus service connections plus no genuine portability equals a building, regardless of labelling.
Most tiny homes sit somewhere between these two poles. The closer your structure is to the Russell end (registered, towable, compact), the stronger your position. The closer to the Ogilvie end (permanent, large, connected), the more likely you need DA.
When no council approval is needed: Regulation 77
The Local Government (General) Regulation 2021, Regulation 77, exempts certain moveable dwelling placements from council approval:
- 1One caravan on owner-occupied land for household members — indefinite duration, no approval needed
- 2Up to 2 caravans on any land if occupied no more than 2 consecutive days and 60 days/year total
- 3Farm stay: up to 6 caravans on rural properties over 15 hectares
- 4Disaster displacement: temporary housing for approximately 2 years
The critical requirement for exemption 1: the caravan must meet the dimensional limits (2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes) and be genuinely capable of road towing. Removing axles, building over the hitch, or connecting permanently to services weakens the exemption.
The triple consent problem for manufactured homes
If your tiny home is classified as a manufactured home on an individual lot (not a manufactured home estate), you face three separate approval processes:
Development Application
Under the EPA Act for the use of land
S68 Approval
Under the LG Act for installation of the structure
Building Certification
Construction/Occupation Certificate for the structure itself
Each step has separate fees, separate consultants, and separate timelines. Combined costs for engineering, stormwater, geotechnical, and bushfire assessments can reach $5,000–$20,000 before construction begins. On-site sewage management alone (where no mains sewer is available) adds $5,000–$15,000.
How different councils interpret the rules
Because the legislation doesn't define “tiny house,” council interpretation varies dramatically. Metro and suburban councils tend to interpret more restrictively. Regional councils are more varied — some block, some actively innovate.
| Council | Approach | Detail |
|---|---|---|
| Shellharbour | Innovating | Two-year pilot to amend LEP to permit mobile tiny homes on residential land without DA |
| Lismore | Incentivising | $15K grants for small housing including tiny homes (post-flood recovery) |
| Byron Shire | Permissive | Secondary dwellings in R2 without strict time limits for household use |
| Eurobodalla | Restrictive | THOWs only as secondary to existing dwelling, never as primary residence |
| Camden | Enforcement-first | Issued removal order for backyard caravan (lost in court — Russell case) |
DCP controls that effectively block tiny homes
Even where the LEP and Housing SEPP technically permit a secondary dwelling, council Development Control Plans can impose controls that make tiny homes impractical. The Housing SEPP prevents councils from imposing stricter numerical standards than the state baseline for secondary dwellings — but councils exercise discretion through design quality and neighbourhood character assessment in the DA process.
- ●Site coverage maximums — 50% combined for all structures leaves little room on small lots
- ●Single-level requirements — eliminates loft-style designs
- ●“Subservient” design requirements — subjective assessment that secondary dwelling must be visually subordinate
- ●Placement restrictions — must be behind front building alignment, rear yard only
- ●Heritage / character overlays — wide discretion to refuse non-traditional designs in Heritage Conservation Areas
You can check which overlays and DCP controls apply to a specific address using PlotDetect's free planning check.
What changes under the Building Bill 2026
The Building (Approvals and Practitioners) Bill 2026 is the most significant legislative change affecting tiny home classification since the LG Act 1993. NSW is the first Australian jurisdiction to formally define “prefabricated buildings” in legislation. Implementation begins 2027.
Key changes for tiny home owners:
- ●Modular/prefab construction formally recognised — ends the “is it a caravan or a building?” ambiguity for qualifying structures
- ●Triple consent partially resolved — Building Approvals replace Construction Certificates, consolidating part of the pathway
- ●Pattern Book pre-approved designs eligible for 10-day CDC — if secondary dwelling designs are included, this dramatically simplifies approval
- ●Full BCA/NCC compliance now required for modular — eliminates the regulatory arbitrage some tiny home owners relied on
- ●Broader “building work” definition — site preparation on undeveloped land now triggers the approval system sooner
Registered tiny houses on wheels (THOWs) remain governed by LG Act caravan provisions and Reg 77 exemptions. The Bill does not touch this category. For more on the Building Bill, see our detailed analysis of how the 2026 Building Bill changes modular and prefab housing.
Frequently asked questions
Can I put a tiny house on wheels in my backyard in NSW?
If it meets caravan dimensions (under 2.5m wide, 4.3m high, 12.5m long, 4.5 tonnes), is trailer-registered, genuinely towable, and occupied by household members on owner-occupied land, Regulation 77 exempts it from council approval. This was confirmed in Russell v Camden [2018]. Connecting to utilities does not automatically disqualify you, but removing wheels or making it immovable weakens the exemption.
Do I need DA for a tiny house in NSW?
It depends on classification. Registered caravans under Reg 77 do not need DA. Secondary dwellings under 60m2 on lots over 450m2 without special overlays can use the CDC pathway (no DA). Manufactured homes on individual lots need DA plus s68 approval. Anything permanently installed that doesn't fit these categories needs full DA.
What happens if a neighbour complains about my tiny home?
Even where Regulation 77 applies, a complaint can trigger a council investigation, an order to remove, and potentially a Land and Environment Court appeal. The Russell case took this exact path — the homeowner won, but only after legal proceedings. Having registration documents and maintaining genuine towability strengthens your position.
Check what planning controls apply to your property
Before installing a tiny home, check the zoning, overlays, and DCP controls for your address. PlotDetect shows LEP permissibility, heritage and bushfire overlays, and setback requirements — the factors that determine which approval pathway applies to your lot.
Check your address