What is the Traditional Building Character (TBC) overlay in Brisbane?

The Traditional Building Character (TBC) overlay is Brisbane City Council's planning tool to protect the city's distinctive pre-1947 timber-and-tin character housing. It's one of the most consequential overlays in Brisbane planning — and the single most expensive one to misread before buying.

How TBC works: - Brisbane City Plan maps the TBC overlay over substantially all pre-1947 character precincts. - A dwelling is caught by TBC if it was built (or substantially built) in or before 1946 AND retains key character elements (typically: timber framing, tin roof, contributory facade). - Once a dwelling is caught, demolition is Code Assessable but with strict pre-conditions, and refusal is the default outcome unless you can demonstrate the dwelling has lost its character or is structurally unsound. - Substantial alterations (front-of-house additions, roof modifications) trigger TBC assessment.

Why TBC kills subdivision intent: - If the existing dwelling is caught by TBC, you typically can't demolish it. - A subdivision pattern requiring removal of the existing dwelling becomes effectively impossible. - Even retaining-and-subdividing patterns are constrained by setbacks, frontage rules, and character-precinct design controls.

Where TBC binds heavily: - Coorparoo, Annerley, Holland Park West (parts), Greenslopes (parts) — variable. - Bulimba, Hawthorne, Norman Park (parts), Morningside (parts) — heavy. - New Farm, Paddington, West End, Highgate Hill — saturating. - Wynnum, Manly — meaningful pockets.

Where TBC does NOT bind: - Most LMR sub-precincts in Brisbane's middle-south (Moorooka, Salisbury, Tarragindi). - Northern LMR (Stafford, Wavell Heights, Aspley). - Post-war estates regardless of suburb.

The honest answer: Casa Daily's score for any Brisbane listing factors TBC binding-or-not as a primary input. A 'Coorparoo LMR' listing scoring 86 and one scoring 42 likely differ on this exact axis.