A heritage home isn’t a standard renovation with an older face on it. If you’re planning a heritage renovation or rebuild in Melbourne, the overlay, the grading and what the old structure can carry all get tested before design moves too far. Gidaya Group works on heritage and custom homes from $500k across Melbourne and Victoria.

What makes a heritage home different to build?

It comes with rules attached to the street.

A heritage home usually sits under a Heritage Overlay, which means the council has a say in what changes where the street can see them. Demolition, the facade, the roofline, the front fence, materials visible from the street, all of it can need a planning permit before work starts. Window proportions, verandah detail, even a chimney can sit inside what the overlay is protecting, because heritage assessment looks at the whole street picture, not just the one property. Some overlays reach further still, to a fence line, a hedge, or a significant tree the council wants kept, because the setting around the house is part of what’s being protected too.

That’s not a reason to avoid the project. It’s a reason to know the overlay status and the grading before you fall for a design the controls were never going to allow. Project Neville is a heritage renovation in Carnegie, the kind of home where what stays and what can change is set by the period character as much as by the brief.

Is your home actually contributory?

The grading changes everything.

Not every old house in an overlay is protected the same way. A significant home, sometimes graded individually significant, is held to the tightest form controls. A contributory home adds to the character of the street and keeps its heritage form. A non-contributory house in the same street has far more freedom, because it doesn’t carry the same weight in the council’s eyes. That one classification decides whether you’re looking at a sympathetic renovation, a rear addition hidden behind the original form, or something closer to a rebuild.

Check it first. A council heritage search, the planning scheme’s heritage overlay schedule, or a statement of significance for the property tells you, and it saves you designing something the grading would only knock back.

How is a Heritage Overlay different from a Victorian Heritage Register listing?

The two aren’t the same thing.

Most heritage homes around Melbourne sit under a Heritage Overlay in the local planning scheme, administered by the council. A Victorian Heritage Register listing is a different, state-level status, reserved for a smaller group of places assessed as significant to the whole state, not just the street or suburb. The controls run stricter, and permits usually go through Heritage Victoria rather than the council alone. Register-listed homes are the exception across Melbourne’s suburbs. An overlay is what most owners are actually dealing with.

For almost every heritage project Gidaya sees, the overlay is the one that matters, and it’s the one worth checking first through the property’s planning scheme. If a Heritage Register listing is ever in play, that changes the whole approach to the brief, right down to how the first conversation with the council needs to run.

What actually needs a planning permit under the overlay?

Not everything does.

Repairing what’s already there like for like usually sits outside the overlay’s reach, since maintenance isn’t a change in form. Anything that alters what the street sees is where a permit gets triggered: demolishing any part of the original building, changing the facade, altering the roofline, or replacing a front fence with something different in style or height. Internal work, most of the time, doesn’t touch the overlay at all, which is exactly why a rear extension hidden from the street has so much more room to move than a front addition ever will.

That difference is the whole game in heritage design. Push the new work back, behind the original form, and the council’s attention narrows to what can actually be seen. A planning officer usually assesses the application first, then refers anything contentious to a heritage adviser for a second opinion before a decision is made.

What should you check before you commit to a heritage brief?

Check the overlay before the sketch.

A council heritage search tells you whether the property sits under a Heritage Overlay, what grading applies, and whether a heritage overlay schedule adds extra controls specific to that street or precinct. That search is worth doing before a concept design exists, not after, because a brief built around a facade change the grading was never going to allow is a wasted set of drawings.

A structural read of the existing home matters just as much. Stumps, wall condition, roof structure and services all sit behind the heritage question, and they decide what a renovation or an extension actually costs to deliver. Pair the overlay search with an honest look at the building itself, and the brief that comes out the other side is one a council is far more likely to approve on the first attempt.

What can a period home carry?

Old bones decide what’s possible.

Behind the character, a heritage home is often single-skin walls, stumps near the end of their life, old wiring and plumbing, and a roof built for a different era. A good heritage builder reads that early, because it decides how much of the existing fabric can stay and where the real cost sits. Keeping a facade while rebuilding behind it is a different job to a light restoration, and the two price nothing alike.

Match the ambition to what the house can actually take. Services connections, structural condition and today’s energy requirements all sit underneath the visible heritage question, and none of them show up properly until someone opens the walls. A proper structural and services assessment before the brief is locked fixes that, so the number a builder gives you reflects the house that’s actually there, not the one in the photos.

How do you extend or renovate behind a protected facade?

Set the new work back.

The common approach holds a rear addition behind the original roofline, so the extension reads as a second, later layer instead of competing with the heritage form at the front. Materials usually shift at that junction too. A different cladding or a change in roof pitch signals honestly where old ends and new begins, instead of an exact copy that can actually work against a permit application. Councils tend to prefer that honesty over an addition trying to look like it was always there.

Window proportions, setbacks and the join between old and new are usually where a heritage assessor spends the most attention. Get those right early, in a concept a council planner has actually seen, and the rest of the design has far more room to move.

Where do heritage projects go wrong?

Between the look and the fabric.

The mistakes are predictable. Designing before the overlay is understood. Underestimating what bringing an old structure up to standard costs. Treating heritage approval as a formality instead of a real path with its own timeline. Committing to an architect before checking the grading, then redesigning the brief once the council pushes back.

None of these mistakes are fatal on their own. Stacked together, they’re how a straightforward heritage renovation turns into a stalled one.

Heritage work rewards patience and honesty. A builder who has coordinated overlay requirements, structural upgrades and modern energy performance can show you where the period character and the new brief pull against each other, and where they sit together fine. A renovation is often the right frame; a knockdown rebuild only where the house is more constraint than asset, and a heritage overlay usually limits how far a rebuild can go anyway.

Why does testing feasibility early change the outcome?

Money moves early or it moves late.

A concept design costs far less to change than a permit application already in with council. Testing the overlay, the grading and the structural condition before the brief hardens keeps the expensive changes on paper, where they’re cheap to make, instead of on site, where they’re not.

A pre-application conversation with the council’s heritage adviser is often worth having before drawings go too far, because it tells you what the assessor will actually push back on, not just what the planning scheme technically allows. That’s the difference between a design that clears heritage approval on the first pass and one that goes back and forth over a roofline or a window.

Skipping that step is how owners end up with two rounds of drawings instead of one. The first set gets knocked back or heavily conditioned, the brief gets rebuilt around what the council will actually accept, and the second set is the one that was always achievable. Testing the path early removes that whole detour.

How do you start a heritage project with Gidaya?

Start with the overlay and the home.

Send the property’s general location, any heritage overlay information from a council search, and photos of the existing home. From there the first conversation sorts whether you’re renovating, extending or closer to a rebuild, what the grading allows, and where the structure will need work. Heritage work connects naturally to a custom home approach, where the site and the existing home lead the design. Where a project could go either way between a heavy renovation and a rebuild, testing that question early is worth doing before a design brief gets finalised.

Gidaya Group brings around 25 years of collective experience to heritage and custom home conversations across Melbourne and Victoria, enough to know when a council will hold firm on a roofline and when there’s real room to move.

Read About Gidaya Group, browse Projects, or send the details through Contact.