Planning and Designs Case Studies
Emily Keane · Captain
We have built hundreds of these. Almost none of them are written down in a way anybody outside the job could learn from, sell with, or point a customer at.
That is what this lab is for: turning finished work into case studies — what the block was, what the customer wanted, what the planning rules allowed, what we designed, and what actually happened.
Emily is the captain. What a case study has to contain is her call, not mine. I can find the blocks, pull the numbers, read the leases and draft the words; I cannot tell you which parts of a planning story matter to somebody reading it, and I would rather be corrected early than build fifty of the wrong thing.
A first one, so there is something to argue with
This is drafted from a real project. Every number is from the approved plans or the register. It is deliberately a draft — the point is for Emily to say what is missing, what is irrelevant, and what we would never put in front of a customer.
Ngunnawal — 407m², and the extension still fitted
The question. The owners wanted more room: a living area, a study that could be a bedroom, an ensuite and a laundry. The obvious answer in Canberra right now is a second dwelling. On this block it was the wrong answer.
| The block | 407 m² — small for anything |
| What was added | 50.2 m²: living room, study/bedroom, ensuite, laundry |
| Shape | L-shaped, joined to the house by a link |
| Plot ratio used | 35.21% |
| Private open space | 205.6 m² against 194.2 m² required ✓ 11 m² to spare |
| Cost | build $306,029 · planning $34,150 · utilities $21,866 — $362,044 |
| Lease Variation Charge | Nil |
| Outcome | Built. Photographed and filmed |
Why it is worth writing up. On a 407m² block a second dwelling would have meant varying the Crown lease, and the Lease Variation Charge can be $49,000 for every home the lease ends up allowing. Extending the existing house added the same rooms, cost nothing in lease variation, and still left eleven square metres of open space above the minimum. That is a planning decision worth a great deal of money, and nobody outside this office knows we make it well.
The design, as published — with the walkthrough video of the finished build.
What I need from Emily
Three questions. Short answers are fine, and "that is wrong" is the most useful answer there is.
Answer them wherever suits. There is a page here for notes — Emily's notes — built the same way as your feedback page on the Planning Assessment Report lab, so it should feel familiar: type in a row, it saves itself. Or tell Frank and he will pass it on.
What happens once the shape is agreed
- Emily settles what a case study contains. That becomes the template.
- I go through the finished work — the Design Engine holds 1,030 designs and GCONS the projects behind them — and propose the cases worth writing up, with the numbers already pulled.
- Emily picks the ones worth doing and corrects the planning in each.
- They go wherever they earn their keep: the websites, proposals, the Planning Assessment Report, or in front of the Territory.
Planning and Designs Case Studies · a CGFB lab · started 19 October 2026. Nothing here is published to customers without Emily's say-so. The worked example above uses a real block; the owners are not named and will not be.