**Ground-level townhouses, not stacked flats**
Taigum is the only one of the six where a separate house is not the most common dwelling: 51.3% of occupied dwellings are semi-detached, row, terrace or townhouse against 45.9% separate houses, the same measure across its five neighbours running from 20.2% down to 3.9%. Flats are 2.1%; a flat has no fence line. A townhouse on a standard-format lot — a lot of land, not a lot inside a building — has a surveyed boundary with private open space a few metres inside it.
**Twenty-nine schemes, 1,741 lots: who has to agree**
More than half of Taigum's 3,358 land parcels sit inside a community titles scheme, and there are only 29, at a median of 54 lots. On the cadastre a Taigum scheme carries several times the shared boundary with a different owner that a neighbouring suburb's scheme does. Long runs, few decision-makers, a committee at the other end of the quote.
**How high, and how far the guidance reaches**
Council's published guidance on maximum acoustic fence heights turns on what the fence faces: 1.8 m between two dwellings beside private open space, 2.4 m only where a fence fronts a major road, or a commercial or industrial use. Taigum reaches neither 2.4 m condition — no arterial, no industry zone, no commercial use on any dwelling boundary. The scope travels with the figure: council's guide applies that table where industrial or commercial noise is reduced into a sensitive use across a shared lot boundary — not two houses. It grants no right to any height, it is no ceiling written into law, and nothing is approved by being built to it. What binds directly is the building rule: approval once a fence stands over 2 m above natural ground surface, the measured height taking in a combination of screens, fences and retaining walls.
**Two dwellings apart, no corridor in it**
Source and receiver both sit on private residential ground, either side of one surveyed line. The Department of Transport and Main Roads calls that the favourable geometry: a barrier is a screen set between source and receptor to interrupt the path of the noise, it must possess sufficient mass, and it works best close to one end or the other, only where the line of sight is fully interrupted. Its noise fence specification allows no gap but drainage at ground level. RYNO's account of its method starts at the install: it says it manages the work so sound cannot leak at the base of a run or through the joins, behind a dense panel, purpose-made infill and framing sized to carry it. What the business says it does, not a tested result; no figure is claimed.
> The district centre, the twenty-nine schemes, the streets and the boundary conditions on this page describe the kind of ground Taigum contains. None of them is a job RYNO has done in it.