Donnybrook building records and unauthorised work: a seller guide

A Donnybrook property may have changed over decades: a patio enclosed, a shed extended, a carport added, a wall removed or a room converted. Sellers sometimes discover during the sale that the plans they hold do not match what buyers can see.

The best response is not to guess when the work was completed or to call it “council approved” because it has existed for years. Order the available records, map the differences and ask the Shire and qualified building professionals what should happen next.

This article is general seller-preparation and marketing information, not building, planning, engineering, legal or conveyancing advice. Whether a permit or certificate was required, and whether retrospective approval is possible, depends on the work, date, classification and property.

Order the Shire's building records early

The Shire of Donnybrook Balingup says an owner, or a person with the owner's written consent, may request copies of building records under the Building Act 2011. Its February 2025 request form says to allow ten working days for the search.

The same form warns that the Shire does not have a complete historic record of every structure, that plans may not be available, and that supplied records may not show all existing structures. A search is therefore a starting point, not a certification that everything on the property is authorised.

Local source: Shire of Donnybrook Balingup — Building Information Request Form, checked 2 October 2026.

Create a current structures schedule

Walk the property and list the main dwelling, additions, patios, decks, verandahs, carports, garages, sheds, retaining walls, pools, spas, water tanks and other structures. For each item, note the approximate construction date, builder if known, use, materials and location.

Compare the list with the title plan, approved site plan, building permits and completion documents. Mark each item as matched, unclear or missing from the available file. Photographs should be dated and identified by structure, but they do not establish approval.

Include internal changes that could affect building classification, fire safety, ventilation, exits or structural loads. A shed used as a bedroom, a garage converted to living space or an enclosed verandah may raise questions beyond its external appearance.

Do not confuse planning approval and a building permit

The Shire's planning information says development approval and a building permit are separate processes regulated under different legislation. Work may require one, both or neither, depending on its type and circumstances.

Collect planning decisions and approved plans separately from building permits and certificates. If a use changed, such as a home business, ancillary dwelling or habitable conversion, include the land-use records as well as the construction records.

Local source: Shire of Donnybrook Balingup — Planning FAQs and information, checked 2 October 2026.

Check common Donnybrook seller questions

Sheds, patios and carports often prompt buyer questions. The Shire's 2026 building document centre includes current application checklists for Class 10a structures, retaining walls and dwellings or habitable additions. Use the relevant current checklist only after the Shire confirms the path for the existing work.

The Shire's building FAQ states that a standard shed is a Class 10a non-habitable building and cannot simply be lived in. Conversion to a Class 1a building requires a building-permit process and compliance with the applicable criteria.

Local sources: Shire building FAQs and building information sheets and checklists, checked 2 October 2026.

Understand retrospective approval without promising an outcome

WA Building and Energy lists the BA13 application for a building approval certificate. Its current building-approvals guidance explains that an application may apply to unauthorised building work and is assessed by the relevant local government permit authority.

A building approval certificate is not automatic. The process may require a certificate of building compliance from a registered building surveyor, plans, inspections, engineering information and work needed to meet the applicable standards. Planning questions may also need to be resolved.

Retrospective approval does not erase the fact that work was carried out without a required permit, and the permit authority retains its enforcement powers. Sellers should not advertise “retrospective approval underway” as though approval is guaranteed.

Official source: WA Building and Energy — Building approvals and forms, updated 4 August 2026 and checked 2 October 2026.

Choose the next step with the right professionals

If an item is unclear, contact the Shire before commissioning extensive work. A building surveyor may assess compliance and advise on certification. A structural engineer, electrician, plumber, pool inspector or other specialist may be needed depending on the structure and issue.

Obtain the scope in writing. Keep site reports, drawings, calculations, photographs, invoices, certificates and Shire correspondence. If work must be altered or removed, retain the permit and completion evidence for that work too.

Allow time. Record searches, surveys, plans, quotes, physical work and assessment can take longer than a seller expects. Resolving the issue before photography and listing generally gives the agent a clearer factual position.

Give the agent the full approval history

WA Consumer Protection says an agent must make every effort to find out and pass on information that could influence a buyer's decision. Its examples of material facts include non-visible structural damage and structures that have not received required approval.

Tell the agent about missing approvals, pending applications, notices, known defects and professional findings. Avoid phrases such as “fully approved,” “council compliant,” “habitable studio” or “granny flat” unless the records support that exact statement.

Official source: WA Consumer Protection — Material facts when buying a home, checked 2 October 2026.

Photograph and describe improvements accurately

Professional images should show the current structure honestly. Do not use digital editing to remove damage, add windows, change a room's use or make an unapproved conversion appear finished. If a structure is excluded, unsafe or awaiting assessment, coordinate access and wording with the agent.

Floor plans should reflect observed layout and carry appropriate qualifications; they are not approval plans. Southside Media can coordinate the visual campaign after the seller, licensed agent and building advisers have agreed on an accurate description.

Use the current Donnybrook market profile as context

REIWA's Donnybrook suburb profile was updated 17 September 2026 using settled sales for the 12 months ending August 2026. It reported a median house sale price of $730,000, annual growth of 14.1 per cent, a lower-to-upper quartile range of $640,000 to $850,000 and a 46-day median selling time for houses.

Those figures describe the suburb, not the value of an individual home, shed, converted space or acreage holding. Approvals, condition, land, improvements and comparable sales need property-specific assessment. Market growth does not remove the need to resolve or disclose building-record questions.

Market source: REIWA Donnybrook suburb profile, data updated 17 September 2026.

Donnybrook building-record seller checklist

• Order the Shire building file and allow the stated search time.
• List every building, addition, pool, wall and converted space.
• Compare the site with title, planning and building records.
• Separate missing records from confirmed unauthorised work.
• Ask the Shire which approval or certificate path applies.
• Use qualified surveyors, engineers and trades where required.
• Give the agent the full history and avoid unsupported claims.
• Align listing copy, floor plans, photographs and buyer documents.

For land-use questions, read the Donnybrook zoning and land-use guide. If the property has a separate small dwelling, use the Donnybrook ancillary-dwelling guide.