Replying to @db_econ
In 2014, a council in Adelaide, South Australia cut its minimum lot sizes to as low as 150sqm, down from 350-500sqm. In 2019, it was partially reversed.
Exploiting this on-then-off setting, we find the reform caused large increases in supply (approvals up 67%, stock up 6%)
Dom retweeted
I showed @db_econ & @geothibbons around Campbelltown, the rezone area in their paper, over the weekend.
We witnessed first hand the parking pressures which have resulted from overdevelopment in the area.
Economists should remember data is no substitute for real world experience
Senior planning academics appear to think that people spend a million dollars on an off-the-plan apartment without being able to find the north arrow on the floorplan???
And that these rules a) increase amenity, b) don't increase costs but c) wouldn't be built anyway???
I'm starting a nonfiction book club in Sydney!
For round 1 we'll be discussing Waves of Plenty by Mark Cully, a fascinating history of Aus immigration.
November 10th in Chippendale, details below- should be fun! Hoping to turn this into a ~monthly thing if we get traction!
And you're going to meet them this Friday at Coopers Alehouse, 6pm, where I'll be discussing parking regulations, RSVP here: yimbyadelaide.com/events/
What else could you possibly have better to do on a Friday night
X people who are Adelaide based, YIMBY Adelaide will be hosting @db_econ this Friday to discuss car parking at the Coopers Ale House.
RSVP here if you want to come along! actionnetwork.org/events/was…
I've been on the fence over the town hall square project but there's some really odd features
The design appears to have the mother of all dead corners??? The surrounding buildings are mostly heritage listed so seems unlikely you'll be able to add shopfronts or anything here
What clever boys, imagine how lucky you'd feel if you got to write a paper with them
Replying to @geothibbons
@geothibbons and I’s submission to the Productivity Commission’s interim report has been published. Unlike our first submission, which largely outlined a framework for zoning reform, this gets into the weeds of measuring where and how regulations bind.
assets.pc.gov.au/2026-10/sub…
This report from the Green Institute is full of basic maths errors.
- Construction/acquisition costs don't line up with their stated assumptions
- Says each store uses 5,687m2 of land, but costs buying 4,550m2
- Mis-identifies an accounting definition change as real
and more!
“Fair Go Grocers would save consumers as much as 22% on the average shop, or $60 a week for a four-person household. Heavy discounts would be put in place for essentials.”
theguardian.com/australia-ne…
















