In short
A 1960s Canberra ex-govvie is a brick-veneer house, often built to one of the government's 400 Series designs. Renovating one usually means building approval: removing a load-bearing wall is never exempt, and neither is building onto a house. As it predates 1985, the application needs an asbestos removal control plan; check the loose-fill Register first too. Wall removal and beam design starts from $890 + GST ($979 inc GST).
Key takeaways
- In the mid-1960s the NCDC built detached houses, "almost all brick-veneer", at upwards of 800 a year.
- The 400 Series designs, reviewed in Downer in 1961, became the basis of Canberra's government housing for more than a decade.
- Removing a load-bearing wall is never BA-exempt, and the certifier inspects the new frame before it is lined.
- A 1960s govvie predates 1985, so a building approval application needs an asbestos removal control plan. Check the loose-fill Register first.
- Additions follow the ACT's Part H6 energy rules, and no new gas connections are allowed.
What is an ex-govvie?
An ex-govvie is a house the government built and later sold privately. This guide is about the 1960s ones: brick-veneer houses built by the National Capital Development Commission (NCDC) as the city grew fast.
The numbers show how fast they went up. Canberra's population grew "from 50,000 in 1960 to around 140,000 in 1970", according to ArchivesACT. In the mid-1960s, an ACT heritage notice records, the NCDC's answer was "detached family houses (almost all brick-veneer) in virtually every new suburb", at "upwards of 800 family houses a year". Woden's first suburbs went up from 1962–64 and Belconnen's from 1966–67, in the same years.
Many were built to the 400 Series designs. Reviewed in Downer in 1961, they "formed the basis for Government Housing in Canberra over the following decade and more".
| A typical 1960s govvie | What's usually described |
|---|---|
| Walls | Brick veneer: "almost all brick-veneer" in the mid-1960s (ACT heritage notice) |
| Designs | 400 Series, in 16 versions (news reports) |
| Shape | Rectangular "red-brick cottages" (news reports) |
| Bedrooms and size | Two to four bedrooms depending on the design, commonly put at about 80–130 m² |
| Finish | Unfinished brick at first, often later bagged (cement rendered) and painted |
| Where | "From Campbell to Red Hill and everywhere in between (not Forrest though)" (news reports) |
Official sources: ArchivesACT and ACT Heritage notice NI2011-100. Rows marked as news reports, and the size and finish rows, are background descriptions rather than official records. Your house may differ.
How is a brick-veneer govvie built, and why does it matter?
A brick-veneer house is a timber-framed house with an outer skin of brick. The frame carries the roof and ceilings; the brick skin carries its own weight and keeps the weather out. So when you open up a govvie, the walls that matter are the timber-framed ones inside.
Which internal walls carry load depends on the design and on what's been changed since. A few clues suggest a wall may be load-bearing:
- It runs under the ridge, or across the ceiling joists rather than alongside them.
- Roof struts or props in the roof space bear down on its top plate.
- It lines up with a wall, beam or row of piers below the floor.
These are clues, not answers. A wall that looks like a partition can still be holding up the ceiling, and earlier renovations move loads around. We check before anyone says a wall can go.
What approvals does an ex-govvie renovation need?
Most structural work needs building approval (BA) from a licensed certifier. Some jobs also need development approval (DA) from the Territory Planning Authority, depending on the planning exemptions.
| Job | Building approval | What the engineer provides |
|---|---|---|
| Removing a load-bearing wall | Always: never exempt. Usually DA-exempt if the building class doesn't change. | Beam and post sizes, connections, footings under the new point loads, framing and tie-downs |
| Extension or second storey | Always: there are no BA exemptions for houses. Any DA depends on the exempt controls. | Footing and slab details, framing, bracing, tie-downs, and a check of the existing footings and walls |
| Replacing the roof | Yes: "replacing a roof" needs a BA. Replacing a tile doesn't. | A check of the roof framing where the loads change |
| Rooftop solar or a heat pump | No BA if the general rules are met, including no effect on structural integrity | A roof framing check where needed, as an engineer's letter from $450 + GST ($495 inc GST) |
ACT BA and DA pages. Carports, pergolas and decks have their own size limits: see carport, pergola and deck approval in the ACT.
Four more rules come with renovating a 1960s house:
- Asbestos. A BA application for a class 1–4 building built or started before 1985 needs an asbestos removal control plan. Check the loose-fill asbestos Register before any work. Our guide to older homes and asbestos in the ACT explains both.
- Energy. The ACT Appendix to the building code has its own energy efficiency rules for alterations and additions, ACT Part H6, with 7-star NatHERS methods and a Passivhaus option.
- Building code. BAs lodged from 1 May 2026 to 30 April 2027 nominate NCC 2022 or NCC 2025; NCC 2025 becomes mandatory from 1 May 2027.
- Gas. No new gas network connections are allowed, including for existing homes being redeveloped.
Can you remove walls to open up an ex-govvie?
Yes, with building approval and a beam designed for the loads the wall was carrying. Removing a load-bearing wall is never BA-exempt, because exempt internal work must leave the building's structural integrity unaffected.
Your certifier needs the structural details: the beam and post sizes, how they connect, the footings under the posts where new point loads land, and the framing, bracing and tie-downs. The certifier then inspects the structural frame before it is lined, so the beam and posts are checked while they can still be seen.
We design; your builder props the ceiling, takes out the wall and installs the beam. We don't supply steel or do the work. Wall removal and beam design starts at $890 + GST ($979 inc GST). See wall removal and beam design.
Can an ex-govvie take a second storey or an extension?
That depends on the existing house. Going up and going out raise different questions.
Going up
A second storey adds load to the existing footings and walls. We check them first, often with a small inspection pit beside a footing, before designing the new structure. Canberra's ground varies: the rock is often deeply and unevenly weathered, and the soil mapping for most suburbs notes "a considerable range in profile form occurs within a small area". What's under one end of the house may differ from the other.
Going out
An extension needs new footings, and it uses site coverage. Single dwelling site coverage is capped at 40% on large blocks, 60% on mid-sized blocks and 70% on compact blocks; your designer confirms which applies. For DA-exempt homes, an extension over 50% of the existing floor area also brings in the rainwater tank controls. Illustrative example: on a 100 m² govvie, that line sits at 50 m² of new floor area.
Extensions and second storeys are a fixed quote from your plans. See extension and renovation engineering.
Should you renovate or knock down and rebuild?
That's your call, and we don't build either way. News reports say owners commonly knock down 1960s govvies and build something bigger. Others keep them: in 2025 the Alastair Swayn Foundation, working with the ACT Government and the University of Canberra, published a guide to renovating and extending 400 Series ex-government houses.
From the engineering side, the useful question is what the existing structure can carry and what it needs. A structural inspection and report, from $1,090 + GST ($1,199 inc GST), gives you that before you commit. If you go the other way, read our knock-down rebuild checklist and see knock-down rebuild engineering.
When should you call a structural engineer?
Before you commit to a layout. Whether a wall is load-bearing, and what the footings can take, decide what your renovation costs.
- Taking out a wall: wall removal and beam design.
- Adding rooms or a storey: extensions and renovations.
- Unsure what you've got: a structural inspection and report.
Woden's first suburbs and Belconnen's late-1960s suburbs date from the govvie years. See structural engineering in Woden and in Belconnen. We're engineers only: we don't build, renovate or recommend builders, so our advice isn't tied to the job that follows. Send photos or plans, add up to 5 files, and we reply with a fixed quote in under 20 minutes on average, during business hours.
Opening up or extending a govvie?
Send photos of the wall or your plans for a fixed quote in under 20 minutes on average, during business hours.
Sources
- ArchivesACT, Find of the month, November 2013: the 400 Series. Accessed 6 November 2026
- ACT Heritage notice NI2011-100 (PDF), ACT Legislation Register. NCDC-era housing history
- Alastair Swayn Foundation, a guide to renovating and extending Canberra's 400 Series ex-government houses (2025). With the ACT Government and the University of Canberra
- Canberra Times, The accidental icon that's scattered throughout Canberra (4 July 2026). News report, background on the 400 Series
- ACT Government, Check if you need a BA. Accessed 6 November 2026
- ACT Government, Check if you need a DA. Accessed 6 November 2026
- Building Act 2004 (A2004-11), ACT Legislation Register. Section 26
- Building (ACT Appendix to the Building Code) Determination 2026 (No 2), DI2026-56. ACT Part H6, alterations and additions
- Territory Plan 2023 (NI2023-540), ACT Legislation Register. E01 rules 7 and 10
