House Extension Costs for Eastern Melbourne | Mass Constructions

Second storey extension by Mass Constructions.

A house extension is a great way to add more space to your home, helping improve the way of life for everyone in your household. It is also an affordable means to elevate the overall look of your home and give it a refreshed look. An extension is the perfect solution if you don’t want to move houses but need more space for your growing family.

House extension costs vary, depending on whether you want ground or second storey house extension. Building extension costs are affected by several factors, such as the design of the extension, floor plan or layout, and materials used, to name a few.

Mass Constructions customers often talk to several custom home builders to get an idea of the overall cost of a house extension, for a better glimpse of the budget needed for the specific house extension design they wish to build. We always endeavour to offer the best combination of affordability while still not compromising on material quality. We bring our expertise to the table to help our clients with accurate costing.

While undergoing a house extension is not a cheap project to undertake, there are ways how you can lower the house extension costs without sacrificing quality. With proper planning and working with an experienced and dependable builder, your dream house extension will be easier to achieve.

House Extension Costs to Consider

Melbourne extension project.
House extension costs vary, depending on whether you want ground or second storey house extension.

One thing not to overlook when it comes to house extension costs is that bathrooms are often one of the most expensive rooms to construct and renovate. This is because bathrooms involve a lot of electrical and plumbing work. Not to mention all the fixtures and fittings that come with a modern bathroom. Next are the kitchen, living space, and bedrooms.

Other home extension costs that you need to consider include:

  • Space: When planning your dream house extension, consider the amount of space you have for an extension. Is it possible to expand the foundation of your home? Is there anything that might hinder the construction, such as a sewer system or septic tank?
  • Design: All house extensions need a custom plan from an experienced home builder. It’s a chance to map out a layout that will complement and enhance your original home.
  • Materials: This is where the bulk of the building extension costs go. That’s why it’s essential to hire a credible home builder to help you identify the materials you can use that are within your budget without sacrificing the quality.

What Are Typical House Extension Costs For Melbourne?

Typical house extension costs usually account for roofing, doors, windows, insulation, claddings and interior cladding. House extension costs in Melbourne also depend on the type of extension you wish to have:

A regular bathroom renovation costs:

  • A budget bathroom is between $2,500 to $15,000
  • An average-sized bathroom with mid-range fixtures is around $15,000 to $25,000
  • High-end bathrooms will cost you $25,000+

For kitchen renovation:

  • A budget kitchen renovation is $10,000 – $22,000
  • Mid-range kitchen costs are between $22,000 – $35,000
  • High-end kitchens costs over $35,000

What Are Extension Costs Per Square Metre?

Unless you are already in the planning stage with your builder, you won’t know exactly how much a house extension will cost. But in general, extension costs per square metre are $2000/m2 to $4000/m2, which brings the cost of an 80 square metre ground floor extension between $160,000 – $320,000. The difference in price is determined by the quality of inclusions and the type of construction.

Are House Extension Cost Calculators Accurate

If you want to know how much it will cost you to build a house extension but are not ready to consult contractors yet, you can check out a house extension costs calculator online – but this will not give you a truly accurate representation. It will give you a rough estimate of the budget you need to allot for your house extension project, but to take the idiosyncrasies of your project into account it is recommended that you consult with an experienced builder.

Double Storey House Extension Costs

Second storey extension by Mass Constructions
Mass Constructions specialise in second storey extensions in Melbourne and are experienced in custom building home extensions.

A second storey house extension will allow you to enjoy double the living space while spending less per square metre. Adding a second floor is a cost-efficient way to extend your house and a practical alternative to moving houses when you need a bigger space for your family.

Unlike single storey house extensions, second storey extensions and three storey houses do not just provide valuable living space but extra space for bedrooms as well. In addition, a double-storey house extension and three storey houses solve the dilemma of interiors that don’t fit the modern lifestyle. At Mass Constructions, we specialize in designing and building such multi-storey extensions for our clients in order to provide them with their desired living space, be it for a growing family or a home office.

Depending on the project, some double-storey house extension costs are cheaper than a ground house extension because no roofing and excavation costs are involved. On average, double-storey house extension costs are between $3000 – $3500, which is cheaper than a large ground floor extension, plus less lot area is required for the extension.

How to Save on Extension Costs

Sophisticated bathroom with downlights.
When it comes to house extension costs is that bathrooms are often one of the most expensive rooms to construct and renovate.

If you’re wondering how to save on extension costs, you need to consider first all the costs involved before committing to a house extension. Make sure to account for:

  • Flooring
  • Lighting
  • Furnishing
  • Blinds or curtains
  • Excavation work
  • Painting
  • Exterior painting
  • Air conditioning and heating

If your property is small, consider converting your garage into a room to save money. It also means you won’t need to sacrifice any outdoor space left on your property.

Contact Mass Constructions to Discuss the Cost of Your Project

If you’re considering a house extension but don’t know where to start, contact Mass Constructions. We are custom builders specialising in house extensions in Melbourne.

We’ve completed a wide range of double-storey extensions in Melbourne, so we’ll be able to guide you on double storey house extension costs and can properly plan and design a house extension that will suit your budget and preferences.

Our goal is to design and build high-quality custom ground and second storey house extensions delivered on time and within your budget.

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