Renovating on the Mornington Peninsula: Your Questions Answered

If you own a home on the Mornington Peninsula and you’re thinking about a renovation, extension or new kitchen or bathroom, you’ve probably typed a few questions into Google already. Do I need a permit? How long will this take? What’s this overlay on my property report? These questions come up constantly with homeowners across Mount Eliza, Mornington, Mount Martha, Dromana and the wider Peninsula, so we’ve put together straight answers based on how the Mornington Peninsula Shire actually works.

This isn’t generic advice pulled from a national blog. The Peninsula has its own planning quirks: coastal overlays, significant vegetation controls, bushfire considerations in some pockets, and a lot of established homes with real character worth protecting. Here’s what you need to know before you start.

Do I need a planning permit to renovate my home?

It depends on what you’re doing and what’s on your property’s planning report. A planning permit relates to the use and development of the land itself, and is separate from a building permit, which relates to how the work is constructed to meet safety standards. Plenty of internal renovations, like a bathroom or kitchen refresh, need only a building permit. But if you’re extending, adding a second storey, changing the roofline, removing significant vegetation, or your property sits within an overlay, a planning permit is likely required — and it must be approved before a building permit can be issued.

The only way to know for certain is to check your property’s planning scheme and overlays through Mornington Peninsula Shire, or have your builder or designer pull that report for you as a first step. On the Peninsula in particular, we always check this before any design work begins.

What are these “overlays” everyone talks about?

Overlays are planning controls layered on top of standard zoning, and the Peninsula has more of them than most Melbourne municipalities. The ones we see most often include the Significant Landscape Overlay (common in coastal areas, to protect the visual character of the landscape), Vegetation Protection Overlays (protecting significant trees and treelines), Heritage Overlays (protecting older or architecturally significant homes), and in some pockets, a Bushfire Management Overlay. Each one adds extra requirements before you can build, extend, or remove vegetation.

If your property has one or more overlays, it doesn’t mean your renovation can’t happen. It means your design needs to account for those controls from day one, rather than being redesigned after a knock-back six months in.

Do I need a permit for a bathroom or kitchen renovation?

If you’re keeping the same footprint and not touching structural walls, most bathroom and kitchen renovations only need a building permit for the plumbing, electrical, and waterproofing work, not a planning permit. Once you start moving walls, changing the roofline, or the renovation is part of a larger extension, planning approval can come into play. Waterproofing and plumbing compliance in bathrooms is non-negotiable in Victoria regardless of permit type, so this is one area where cutting corners causes expensive problems later.

What about a deck, pergola or small addition?

Decks and verandahs attached to the house generally require a building permit, especially once they’re elevated. Pergolas are the grey area: a small, open-frame pergola under 20 square metres, no more than 3.6 metres high, with no solid roof, may be exempt. The moment you add a solid or waterproof roof — even a single sheet of polycarbonate — it’s reclassified as a verandah and needs a permit. Given how easily these exemptions get triggered, it’s worth confirming with council or your builder before you commit to a design, rather than assuming a small structure is exempt.

How long does a planning permit take on the Mornington Peninsula?

Timeframes vary a lot depending on complexity. Straightforward applications that qualify for the VicSmart fast-track process can be assessed within 10 days. Standard applications typically take longer, and more complex or contested applications, particularly those involving overlays or objections from neighbours, can take considerably longer again. Building good early relationships with council planners and submitting a complete, well-documented application from the outset is the single biggest factor in keeping this on track.

My property is in a bushfire-prone area. What does that mean for a renovation?

Some parts of the Peninsula, particularly pockets near bushland edges, fall within designated bushfire-prone areas. If yours does, any new build, extension or significant renovation needs a Bushfire Attack Level (BAL) assessment, which rates the property’s bushfire risk based on vegetation, slope and proximity to bushland. The rating then determines construction requirements, from sealed roofing and screened windows at the lower end, through to non-combustible external materials and tempered glass at higher BAL ratings. This isn’t optional, and it’s far cheaper to design for it upfront than to retrofit compliance later.

I own an older character home. How do I renovate without losing what makes it special?

This comes up a lot on the Peninsula, where many homes sit on established blocks with real period character. If your home falls within a Heritage Overlay, you’ll generally need a planning permit for significant external works, including changes to the facade, roofline, or front garden, and in some cases even paint colour. The good approach isn’t to replicate the old — councils and heritage advocates generally prefer a clear distinction between original and new — but to design an extension that respects the original street presentation while giving you a home that works for how you actually live. Early conversations with council, before your plans are finalised, save significant time and redesign costs.

How much does a bathroom renovation cost?

Costs vary with size, layout changes and finish level, but as a general guide, a cosmetic refresh starts from around $8,000, a standard full renovation typically sits between $15,000 and $35,000, and premium renovations with layout changes or high-end finishes can run higher again. Keeping your existing plumbing positions for the toilet, shower and vanity is the easiest way to control cost, since relocating fixtures adds meaningfully to the budget.

How much does a kitchen renovation cost?

A budget kitchen refresh using stock cabinetry and retaining the existing layout typically starts around $15,000 to $25,000. A mid-range renovation, which is where most homeowners land, generally costs $30,000 to $50,000. Premium and architecturally designed kitchens with custom joinery can run well beyond that. Cabinetry is usually the largest line item in any kitchen budget, and keeping plumbing and cooking points in their existing positions avoids one of the bigger hidden costs.

Should I use a design and construct company for my renovation?

For anything involving a planning permit, an overlay, or a renovation and extension combined, a design and construct approach means the same team is responsible for the design, the permit process and the build, so there’s no gap where things get lost between an architect, a draftsperson and a builder. For a straightforward internal kitchen or bathroom renovation with no structural or planning implications, a specialist renovation builder alone may be all you need. The right approach depends on the scope and complexity of what you’re planning, and on whether your property carries any overlays that need to be managed from the outset.

Final Thoughts

A well-planned renovation can dramatically improve how a home functions, especially for growing families staying in the suburb they love. The projects that go smoothly are the ones where permits, overlays and cost are mapped out honestly from the start, not discovered along the way. Planning rules and overlays are specific to each property, so before finalising any design, confirm your requirements directly with Mornington Peninsula Shire, or have your builder or designer do this for you.

Thinking About Renovating on the Mornington Peninsula?

If you’re considering a renovation, extension or new kitchen or bathroom in Mornington, Mount Eliza, Mount Martha, Dromana or elsewhere on the Peninsula, and want a clear, honest read on what’s possible for your property, the team at Concept Design Construct Victoria would be glad to talk it through.

Get in touch to discuss your plans.