Start with what can be dated. Economic Development Queensland records that the Fitzgibbon Priority Development Area was declared on 25 July 2008, and that its development scheme commenced on 24 July 2009. State-planned residential development inside that area followed the scheme rather than preceding it, which is more than most Brisbane owners can say. The limits matter just as much. The PDA is not the suburb: it covers 295 hectares reaching into Carseldine, Bald Hills, Taigum and Deagon, while Fitzgibbon itself holds 2,683 private dwellings. The record dates an area, not an address, so nothing here says all or most Fitzgibbon housing is new, and nothing here can put an age on your particular house.
Then the honest part. No industry authority publishes an expected service life in years for a roof or any roofing material. So a construction date, even a government-published one, cannot tell you whether your roof is due.
What restoration is, on the evidence available, is a set of separable operations rather than one product. Customers describe it in their own words as being pressure cleaned, gutters cleaned, repointed, tiles replaced, painted and sealed; this business's published restoration description names inspection, repairs, cleaning, painting and finishing touches; and the business publishes an order for them — inspect, then clean, then repair, then coat and seal, then a final check. Two things follow. Because the operations are separable, a roof that is not there yet can have one of them done without buying the rest. And because the business's published order starts with inspection, the step that answers Fitzgibbon's open question is where the sequence already begins rather than an extra to negotiate for.
So the specific question is not how old the roof is but what is holding it down. If your roof is tiled, the National Construction Code lists the ways tiles must be secured, and flexible pointing complying with AS 2050 is one of them alongside clout nails, screws and clips — so pointing is a fixing, not a decorative line. Bed and pointing are two layers, the bed carrying the ridge and hip tiles and the pointing sealing over it. That distinction is what a Fitzgibbon owner has instead of a clock. The public record says an area was planned from 2009; the ridge line says which layer, if any, is failing in 2026. "Is anything failing, and which layer" is a question with an answer. "Is my roof due" is not — and the suburb that can name a start date is where that shows most plainly.