Buying a home with a glossy new deck or sparkling extra bedroom is exciting. Yet the smartest buyers and sellers know that looks are not enough. This is why real estate agents review council approvals on renovations before a deal moves forward. If extensions, sheds, decks or internal alterations were built without the right council approval or building permit, you can inherit legal risk, insurance issues and resale headaches. Good agents check early so you avoid delays, avoid costly fixes and protect future value.
What Real Estate Agents Check First With Council Approval
A thorough agent begins with basics that prove the work is lawful in the local area:
- The development approval pathway was followed. That could be a development application to the local council or a complying development certificate issued by a private certifier or building certifier.
- Evidence of building approvals that align with the building plans on file.
- Whether a formal building permit was issued before construction started.
- If approvals are not on file, whether a retrospective approval path is possible.
- Any scheme-specific or council requirements such as parking, drainage, privacy screens or setbacks that protect neighbouring properties.
- Basic compliance with the Building Code, fire safety rules and, where relevant, heritage conservation area controls or bushfire-prone area rules.
Real estate agents are not the council and do not replace legal or technical advisors. Their role is to do practical due diligence early and urge you to seek professional advice from a solicitor, building surveyor or experienced architect where needed.
The Building Approval Process
Rules vary depending on state and council, but the steps usually look like this:
- Proposed works are scoped with building plans that show what will be built and where.
- You follow either a DA process with the council or a complying development route with a private certifier, depending on the type of building work.
- A building permit or construction certificate is issued before you start building.
- Mandatory inspections occur during the building project.
- A final certificate of compliance is issued on completion.
If those steps are missing, an agent will flag it as a risk that can affect insurance, finance approval and resale.
Development Application or Complying Development Certificate
Real estate agents look at the chosen approval path because it shapes risk:
- A development application invites detailed council assessment and public notification. Good for complex proposed development or sensitive sites.
- A Complying Development Certificate is faster for standard work that meets strict rules. It is issued by an accredited private certifier or building certifier.
Either way, the key is proof that the approval process was followed and the documents match what is standing on site.
Why Unapproved Building Work Is A Real Risk
Buying an unapproved extension is not just a technicality. It can:
- Void or limit insurance claims after a storm or fire.
- Trigger a notice to demolish, alter or seek retrospective approval, which costs money and time.
- Delay settlement if the buyer’s lender demands compliance.
- Reduce market value because future buyers and property owners fear major issues.
- Force you into a stressful hearing, such as the Land and Environment Court in some jurisdictions, if disputes escalate.
This is why real estate agents review council approvals on renovations as standard practice. It protects both parties.
Special Locations With Additional Rules
Some sites need extra care and professional advice:
- Heritage conservation areas or heritage-listed buildings often require detailed plans and traditional materials.
- Bushfire-prone areas impose construction standards for ember attack and fire safety.
- Waterfronts, flood zones or steep land may add engineering requirements.
- In Western Australia and other states, terminology and consent authorities differ. Your agent will remind you that rules vary depending on location, and you should verify with the local council.
Internal Alterations, Decks, Granny Flats And Fences
Common projects agents probe during a strata search or title review:
- Internal alterations like removing walls, adding bathrooms or changing wet areas. These can affect structure and require waterproofing certificates.
- Decks and pergolas which seem simple but often need setbacks and privacy screening to protect neighbouring properties.
- Granny flats, which typically require approvals and unit entitlements or service upgrades in some settings.
- Fences and boundary walls that can spark disputes if built over the line without permission.
If any element looks “too new” for the strata report, certificate pack or council file, a careful agent asks for proof.
How Real Estate Agents Verify Building Approvals and Plans

A practical checklist a good agent will follow:
- Match as-built works to stamped building plans on the council portal.
- Request copies of building approvals, final occupation or completion certificates, and fire safety sign-off.
- Confirm the works fall within scheme by-laws for strata property or body corporate rules.
- Ask for invoices, warranties and certificates from licensed builders, plumbers, electricians or waterproofers.
- If documents are missing, recommend a strata inspection report or independent building inspection, then seek legal advice on contract wording.
Low-Effort Fixes Versus High-Consequence Gaps
Not every missing paper is a disaster. Agents help you separate:
- Low-effort fixes: minor works where a certificate can be located or a simple retrospective approval can be lodged with a modest fee.
- High consequence gaps: structural changes without a building permit, additions in a heritage conservation area without consent, or granny flats that never went through any approval. These can stall finance or kill the deal.
Clarity here helps buyers and sellers negotiate fairly and avoid delays.
Contract Strategies That Protect You
With a solicitor’s help, an agent may suggest:
- Making the contract subject to the seller providing specific certificates within set dates.
- Holding a portion of the purchase price in trust until proof of compliance is supplied.
- Adjusting price or special conditions to reflect the cost and timing of regularising work.
- Extending settlement to allow a targeted approval process to finish.
These options turn unknowns into a clear decision-making process.
When Retrospective Approval Is Sensible
Sometimes a property is worth pursuing if retrospective approval is realistic:
- The building code can still be met with minor rectification.
- The private certifier indicates sign-off is achievable.
- The local council has a pragmatic pathway for older completed works.
- The risk of escalation to a court is low.
Your agent will not promise outcomes. They will connect you with an expert team so you can assess, prepare and proceed with eyes open.
The Cost Of Skipping Council Requirements
Skipping checks can look like speed, but it often costs more:
- Re-doing waterproofing or fire doors after purchase.
- Paying backdated fees or urgent levies on strata common areas.
- Compensating neighbours after a boundary or privacy breach.
- Losing buyer interest at resale because your file is thin.
The lesson is simple. Approvals today protect future value tomorrow.
A Simple Buyer And Seller Checklist
For buyers
- Ask your agent for the building approvals bundle and recent strata records where relevant.
- Confirm the approval pathway: DA or complying development.
- Get a pre-purchase building inspection and, if needed, a professional strata searcher for strata title.
- Verify certificates of completion and warranties.
- Seek legal advice before exchange if anything is unclear.
For sellers
- Gather the full council approval pack before listing.
- Locate certificates from your building certifier, waterproofers and electricians.
- For strata property, obtain the latest strata report, financial reports and by-laws.
- Fix small compliance gaps now so buyers have confidence.
Secure Your Sale And Your Future With Proper Council Approval
If you want a smooth sale and a confident purchase, treat approvals like a non-negotiable. Real estate agents review council approvals on renovations to protect you from silent risk, to support clean finance, and to preserve market value when it is your turn to sell.
At Best Local Real Estate Agents, we help you verify the approval path, coordinate missing documents with the local council or private certifier, and structure contracts that reduce uncertainty. Whether you are upgrading your dream home, comparing an investment with strong capital growth, or preparing to list next month, our team will guide the approval process so you can move forward without surprises.