Planning controls for Victoria and New South Wales, written against the ordinance.Read the library
Clause 43.02Permit trigger · schedule sets the numbers

DDO: Design and Development Overlay

Two lots can both be 'in a DDO' and differ by everything that matters. One is in DDO4 and one is in DDO6, and the schedules behind those numbers set different heights, different street walls and different setbacks. The overlay number is a pointer. The schedule document is the control.

Assessed as at 29 September 2026 under VC253, VC257, VC267, VC276, VC282, VC300, VC308, VC311, VC315

What the control sets

The Design and Development Overlay applies built-form controls to identified land, and the parent clause sets no height, street wall or setback of its own. Clause 43.02 establishes the mechanism; every built-form number is in a schedule written by the responsible authority. What the clause itself does is require a permit to construct a building or carry out works on the land it covers — unless the schedule says a permit is not required — and require buildings and works to meet the schedule’s requirements.

What a DDO schedule typically reaches

Design and Development Overlay schedules commonly set MANDATORY or discretionary building heights, street-wall heights, upper-level setbacks and site-specific built-form controls that override the zone standards.

A DDO schedule can set a mandatory height, and this is one of the few places in a Victorian scheme where a mandatory built-form control is common rather than exceptional. It can also set discretionary ones, and the schedule text is the only thing that says which. The distinction is the whole outcome: a mandatory street wall and a preferred street wall produce different buildings, and only one of them can be argued with.

The schedule applies alongside the zone rather than instead of it, and the relationship is set by particular clauses, not by a general “most restrictive wins” rule. Where the zone and a DDO schedule each set a mandatory height, a building has to meet both, so the lower one governs in practice. But Clause 43.02-2 lets a permit vary any schedule requirement “unless the schedule specifies otherwise”, so a DDO figure binds absolutely only where the schedule says it cannot be varied. In the Housing Choice and Transport Zone, Clause 32.10-8 lets a higher overlay height requirement apply instead of the zone’s table. And Clauses 54, 55 and 57 say that where an overlay schedule specifies a standard that modifies one of theirs, the overlay’s version applies. A zone figure read on its own is the start of the question rather than the answer.

How far two schedules of the same overlay differ

There is no such thing as “a DDO height”. These are real schedules from real Victorian planning schemes, each named with the planning scheme it belongs to — the range across them, and the different kinds of figure they state, is the reason this page cannot tell you what a DDO permits.

A sample of Design and Development Overlay schedules, the heights and storeys they state, and whether each figure is a maximum, a preferred figure or a no-permit threshold
ScheduleHeightStoreysWhat the figure is
Bayside DDO16 m2Height: No-permit threshold, not a maximum. Storeys: Mandatory — cannot be varied.
Frankston DDO19 m—Mandatory — cannot be varied
Kingston DDO1—2Mandatory — cannot be varied
Mornpen DDO28 m2Mandatory — cannot be varied
Bayside DDO29 m2No-permit threshold, not a maximum
Frankston DDO1213.5 m—Preferred — "should"

A sample, not the set. A no-permit threshold is the height below which no planning permit is needed — a building above it needs a permit, but is not prohibited. A preferred figure is a “should”, argued on merit. Only a mandatory figure is a maximum. Across Victorian schemes, DDO schedules run from single-storey coastal controls to activity-centre towers — and a schedule number is only meaningful within its own planning scheme. One council’s DDO4 has nothing to do with another’s.

So the practical reading order on a DDO site is: find the schedule number from the planning certificate or the scheme maps, open that schedule in that council’s planning scheme, and read it for three things — the height, whether the height is mandatory or preferred, and what it says about street wall and upper-level setbacks. That last pair is what usually decides the shape of the building, and it is the part most often skipped.

Sources

Assessed as at 29 September 2026 under VC253, VC257, VC267, VC276, VC282, VC300, VC308, VC311, VC315.

Related: the Mixed Use Zone is the zone that most depends on this overlay for its height, and the Housing Choice and Transport Zone is the one where a mandatory zone height and a DDO schedule most often meet.

This page describes the instrument, not your land. Which controls actually apply to a particular property is settled by the planning certificate for it — a section 10.7 certificate in New South Wales, a planning certificate in Victoria — and by the responsible authority.