What we mean by 'dual occupancy'
Two dwellings of equal status on a single lot — duplex pair (attached), side-by-side detached, or front/rear arrangement. In Queensland planning language this is a Material Change of Use (MCU), almost always Code Assessable in the LMR (Brisbane), MD1 (Gold Coast), or equivalent zones. Casa Daily distinguishes dual occupancy from secondary dwelling (granny flat) — they trigger completely different planning paths.
Where SEQ dual-occupancy plays are happening
Brisbane: LMR sub-precincts across Carina, Tarragindi, Camp Hill, Norman Park, Aspley, Mansfield. Gold Coast: MD1 zones in Miami, Labrador, Ashmore. Sunshine Coast: Buderim, Mountain Creek, Coolum Beach. Moreton Bay: Strathpine, Margate, Scarborough — code-assessable dual occupancy with Moreton Bay's permissive frontage requirements. Logan: Springwood, Daisy Hill, Slacks Creek for sub-$800K dual occupancy with high yields. Redland: Birkdale, Wellington Point, Cleveland for premium bayside duplex plays.
What kills a dual-occupancy site
Frontage too narrow (most SEQ councils require 18-20m for code-assessable dual occupancy), depth too shallow (under 30m and the second dwelling can't meet setback), heritage or character overlay (binding TBC kills dual-occupancy intent), flood freeboard (lifts both slabs and erodes feasibility), bushfire BAL ≥29 (triggers expensive construction class), and side-boundary setbacks that don't accommodate a duplex pair. Casa Daily filters all of these in scoring.
Yield expectations
Code-assessable dual occupancy in middle-ring SEQ typically delivers: total project cost $1.4M-$2.0M (land + build), end-product value $1.7M-$2.5M (combined two dwellings), gross development margin 18-28%. As a hold-and-rent investment: combined gross rent $1,200-$1,800/wk, gross yield 5.5-7.5% depending on suburb. Casa Daily's feasibility snapshot factors actual local end-product values, not generic figures.