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Double Storey Extension
Builders in Melbourne

Registered Building Practitioners

Most Melbourne homeowners choose to go up for one of two reasons. The block won't give them enough room at the rear, or they're not willing to lose the backyard to get it. Craft Built Homes builds double-storey extensions that add real space without disrupting how the rest of your home works.

Double Storey Extensions Across Melbourne's Inner East

Craft Built Homes builds double storey extensions across Melbourne's north-eastern and inner-east suburbs, covering Manningham, Boroondara, Nillumbik, and Whitehorse council areas. Our site managers work and live locally, which means real knowledge of council overlays, permit processes, and site conditions in each area.

  • Craft Built Homes completed double storey extension in Doncaster, Melbourne

    Manningham Council

    Doncaster, Templestowe, Park Orchards & Wonga Park

    Manningham Council applies consistent ResCode requirements. Most extensions in this area are assessed under Victoria's standard residential provisions, though Heritage Overlay applies to some pockets near Doncaster Road. We know the process well.

    Park Orchards is a smaller suburb but one of the more active for construction relative to its size. Large blocks, high property values, and homes at the age where an upper storey extension makes strong financial sense. We've quoted in Park Orchards and we understand what these projects involve.

    Wonga Park shares a similar profile. We've completed upper storey extensions in Wonga Park and have direct experience with the block sizes, setback conditions, and construction requirements typical in this area.

  • Craft Built Homes completed double storey extension in Kew, Melbourne

    Boroondara Council

    Kew & Balwyn

    Boroondara Council is one of Melbourne's more rigorous planning environments. Second storey additions here often require a planning permit regardless of size. We factor approval timelines into every Boroondara quote.

  • Craft Built Homes completed double storey extension in Eltham, Melbourne

    Nillumbik Council

    Eltham & Warrandyte

    Nillumbik's bushfire overlay affects construction specifications in these areas. If your property is in a designated BAL zone, we identify this in the initial site review and spec accordingly.

  • Craft Built Homes completed double storey extension in Hawthorn, inner east Melbourne

    Boroondara & Whitehorse Councils

    Camberwell, Hawthorn & Surrey Hills

    This part of Melbourne has a mix of period homes and contemporary builds. Extensions here typically need to address neighbourhood character guidelines from Boroondara and Whitehorse councils.

Double Storey Extension Types

Craft Built Homes builds double storey extensions to suit different blocks, budgets, and households. The right scope depends on your existing structure, your council, and what you actually need the extra space for. Every project starts with a site assessment and council overlay check before any design work begins.

  • Full Second Storey Addition

    Adds an upper level across most of the existing footprint. In practice, siting requirements mean upper storey walls need to be set back from the lower storey external walls, so a fully matching footprint is only achievable on larger blocks with generous setbacks. An initial structural assessment of your existing slab and frame is carried out before design begins, and structural alterations are a standard part of most upper storey projects.

  • Partial Second Storey Addition

    Extends above part of the existing footprint rather than the whole home. A practical option when you need two or three extra rooms without the cost or complexity of a full upper level. As with all upper storey extensions, an initial structural assessment is carried out first to determine what your existing structure can support and what alterations are required.

  • Second Storey With Master Suite

    The most common request. A dedicated upper level master bedroom with ensuite and walk-in robe, separate from the rest of the household. Gives the home a clear split between adult and family living. An initial structural assessment is standard on every upper storey project, including single-suite additions.

  • Second Storey With Multiple Bedrooms

    Adding two or three bedrooms above the existing ground floor, typically alongside a bathroom or powder room. This is a substantial scope of work — realistic upper storey renovations of this size sit closer to the ceiling of what's achievable within an existing home's structure before the project approaches new build territory. As with all upper storey extensions, an initial structural assessment is carried out before design begins.

Ready to Add a Second Storey to Your Melbourne Home?

Most projects start with a straightforward site assessment. We check your structure, your council overlays, and what's possible on your block before any design work or money is committed.

Double Storey Extension Melbourne FAQs

Do I need a planning permit for a double storey extension in Melbourne?

In most cases yes. A building permit is required for every double storey extension. A planning permit is also required in many inner-east councils, particularly where Heritage Overlay or neighbourhood character guidelines apply. Boroondara applies strict requirements to second storey additions regardless of size. Craft Built Homes manages the full approvals process and identifies what's required for your specific property before design begins.

Can I build a double storey extension on my existing home?

Subject to your block, existing structure, and council requirements. We assess your slab, frame, and council overlays before any design work begins. If your home needs structural work to support a second storey, you'll know before any money is committed.

What is the difference between a full and partial second storey addition?

A full second storey addition builds an upper level across most of the existing footprint. Siting requirements mean upper storey walls need to be set back from the lower storey external walls, so a fully matching footprint is only achievable on larger blocks. A partial addition extends above only part of the ground floor, which suits homeowners who need a few extra rooms without the scope of a full upper level. The right choice depends on your household, your block, and your council requirements.

Will a double storey extension add value to my property?

Yes. Adding a bedroom moves a 3-bed to a 4-bed, one of the most significant price bracket shifts in Melbourne residential property. A well-built double storey extension in suburbs like Kew, Balwyn, and Doncaster typically returns strong resale value because demand for 4-bedroom homes in those areas consistently outstrips supply.

Is it cheaper to build a double storey extension than to move house?

For most Melbourne homeowners in the inner east, extending is significantly cheaper than selling, paying stamp duty, and buying a larger property in the same suburb. A well-scoped double storey extension also adds measurable resale value to the home you already own.

Do I need to move out during a double storey extension?

In most cases, yes. Upper storey extensions involve significant structural work, roof removal, and extended periods where the home is not weathertight. Unless your home is large enough that a completely separate living area exists well away from the construction zone, staying on site during an upper storey extension is not practical. We work through this during the planning phase so you can make accommodation arrangements well in advance.

Can a double storey extension be added to any style of home?

Most home styles across Melbourne's inner east are suited to a second storey addition, including period homes, brick veneers, and contemporary builds. The key factors are your existing structure, your council's neighbourhood character requirements, and how the new storey is designed to sit with what's already there.

What happens if my home needs structural work before a double storey extension can begin?

We identify structural requirements during the initial site assessment, before design begins and before any money is committed. Structural alterations are a standard part of most upper storey extensions. If your slab, frame, or footings need significant additional work to carry a second storey, that scope is included in your quote from the start.

Do you manage the full double storey extension process or just the build?

Craft Built Homes manages the entire project from initial site assessment through to handover. That includes structural review, design coordination, planning and building permits, construction, and final walkthrough. You have one point of contact throughout.

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Craft Built Homes
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