34 property owners in South East Queensland requested assessments this month
iSummary
Can you add a second storey to your house? Height limits, character restrictions, and approval process for Queensland homeowners.
Source: ACRES — Australian Commercial & Residential Group | acres.au
Can I Add an Extra Storey to My House?
Adding a second storey is one of the most effective ways to double your living space without reducing your yard. But height limits, character restrictions, and structural considerations all play a role.
Height Limits by Zone
| Zone | Typical Height Limit |
|---|---|
| Low Density Residential | 8.5m (2 storeys) |
| Low-Medium Density | 9.5–12m (2–3 storeys) |
| Medium Density | 12–15m (3–5 storeys) |
| Character areas | May be restricted to single storey streetscape |
What Might Prevent It
- Character overlay — some areas restrict building height to maintain streetscape character
- Height limit already reached — if your existing home is at the maximum
- Structural limitations — the existing structure may not support a second storey
- Neighbour impact — overlooking, overshadowing considerations
- Covenant restrictions — some lots have building covenants limiting height
The Process
- Check zoning and height limits for your property
- Engage an architect to design the addition
- Structural assessment of existing building
- Building approval through private certifier
- Construction — typically 4–8 months
Cost vs. Value
- Cost to add a second storey: $250K–$500K
- Value added: Often $300K–$700K in desirable suburbs
- Alternative: Sometimes knockdown-rebuild is more cost-effective
Free Assessment
ACRES can check your property's height limits and advise on the best approach.
Check your property's building potential.
Frequently Asked Questions
What is the maximum building height in residential areas?
Typically 8.5m (2 storeys) in low density zones. Higher in medium and high density zones.
Does adding a second storey need council approval?
Building works approval is required (through a private certifier). Development approval may also be needed depending on your zone.
Free Zoning Check
Not sure what you can build on your property? Our team will review your zoning, overlays, and constraints — completely free, no obligation.
What property do you want assessed?
Our team will review your zoning, block size, and development potential.
100% free. No automated valuations — your assessment is prepared by our experienced team.
Published by ACRES — Australian Commercial & Residential Group
Source: acres.au/insights/can-i-add-extra-storey-my-house | ACRES (Australian Commercial & Residential Group) provides property advisory, development site sales, and residential real estate services across Brisbane and South East Queensland, Australia.
Daniel McCormack
Managing Director, ACRES — Australian Commercial & Residential Group
