SMARTER LIVING

Modular Extensions Melbourne

Looking to expand your home without the delays and disruption of traditional building? Reimagine your home for the life you live now, without having to move with Humpy Co.’s modular extensions.

Saving up to 40% on the cost of traditional extensions, they are built off-site and installed quickly. They offer a smart and efficient way to add space to your Melbourne home and are fully customisable to your needs.

OUR BENEFITS

Why Consider a Modular Home Extension?

The Challenge

Adding space to your existing home often means months of mess, noise, and unexpected costs. Homeowners in Melbourne need a reliable way to extend their property without losing time, money, or peace of mind.

Common issues include:

Long, intrusive renovation timelines

Managing multiple trades and approvals

Unexpected cost blowouts

Limited access or complex block conditions

The Humpy Co. Solution

Our modular extensions are engineered off-site, delivered to your property, and installed efficiently. Whether you’re after a guest wing for additional space for long-staying guests or family members, a teen retreat giving independence yet privacy or an increase to your living space, we offer a high-quality solution with minimal disruption to your life.

Modular extensions are perfect for:

Families

growing into their space

Homeowners

needing flexible room solutions

Professionals

requiring a permanent workspace

Multigenerational households

seeking independence and privacy

TRUSTED BUILDERS

Experienced Modular Extension Builders in Melbourne

Humpy Co. brings over four decades of construction industry experience across Victoria. Our modular extensions are crafted to fit seamlessly with your existing home and comply fully with local building codes.

Our extensions include:

Galvanised steel framing with full insulation

Option to build up flush to existing building or using a link system.

Engineered and certified for Melbourne weather conditions

Customisable internal layouts and finishes

CHOOSE HUMPY

Why Choose Humpy Co. for Modular Extensions?

Decades of Expertise

A trusted name with builder-backed experience

Full Service Delivery

From design to council approval and final installation

Faster Results

Off-site construction reduces on-site mess and delays

Future-Ready Design

Easily adaptable and relocatable (in some cases)

Seamless Integration

Designed to complement your existing dwelling

Check out our range of:

Family-owned & Customer focused

50 year Structural Integrity Guarantee.

15 year durability guarantee

Proudly Australian-made

Sustainable by design.

HOME TYPES

Types of Modular Home Extensions Available

More space, without the stress. Humpy modular extensions offer two smart ways to expand your home, with minimal disruption and complete design flexibility.

Two Build Options

OUR RANGE

Our Pre-Designed Extensions

Below are some of our pre-designed extensions options. We also offer custom designed solutions.

Flexible Use Options

Each modular extension is purpose-built and fully customisable to suit your home, land, and lifestyle. Common uses include:

Guest Wing

A private space for visitors, older children or extended family. Popular features include a bedroom, living area, coffee nook, bathroom, and laundry.

Teen Retreat

Designed for growing independence, with an extra bedroom and relaxed living space that still stays close to the family home.

Family Expansion

Add extra rooms or extend key areas like kitchens and living zones to better suit your household’s needs over time.

Custom Layouts

Every extension is designed to complement your property’s layout, light, and orientation - no two builds are the same.

LEGAL GUIDE

Permits and Regulations for Modular Extensions

Most modular extensions require building and planning permits. Humpy Co. manages:

On-site assessment for feasibility

Permit submissions and liaison with local councils

Timely updates and transparent communication

We simplify the compliance process, so you’re supported every step of the way.

COST GUIDE

Modular Extension Costs & Inclusions

We offer full transparency with clear pricing.

What influences the price?

Size and design

Single-room or multi-room extension

Custom choices

Internal finishes, window styles, and fixtures

Site logistics

Access for delivery and existing infrastructure

Permit requirements

Vary by location and project scope

These prices include standard inclusions such as insulation, cladding, windows, and compliance management. All our extensions are engineered for Australian conditions and built for longevity.

We believe in value without compromise – quality materials, ethical construction, and full support throughout the process. For a detailed quote based on your block, needs, and location, get in touch with our team.

DESIGN IDEAS

Modular Home Designs to Suit Every Site

We ensure your modular extension doesn’t feel like an afterthought:

Choose finishes and materials to match your house

Tailor window/door placement for best natural light and flow

Ensure insulation, ventilation, and cooling systems meet efficiency standards

Our aim is to deliver a new space that feels integrated, functional, and future-ready.

TOP CHOICE

Why Modular Extensions Make Sense in Melbourne

The team at Humpy Co. applies expertise gained from decades in Australia’s construction industry to deliver exceptional results.

Fast turnaround from concept to completion

Reduced on-site construction mess and noise

Flexible solutions for changing family needs

Reliable builder guidance through every stage of the project

TESTIMONIALS

What Our Clients Say

Discover real experiences shared by clients who trusted us.

"The Humpy team were organised, friendly, and fast. Our teenage son now has his own space, and we’ve got our living room back!"

Sarah, Mornington VIC

"I was surprised at how solid and quiet it is. A great solution for working from home."

Dave, Geelong VIC

"Great communication, simple install, and no stress with council approvals. Highly recommend."

Jess & Liam, Ballarat VIC

QUICK ANSWER

Your Modular Home Extensions Questions Answered

Find quick answers to the most common property questions.

Are modular extensions cheaper than traditional home extensions?

Yes, in most cases. Our prefabricated approach reduces labour costs, minimises waste, and shortens the construction timeline, creating meaningful savings without compromising quality.

How long does it take to install a modular extension?

Most Humpy Co. extensions are installed in just 6 weeks, with complete project timeframes (including design, approvals, manufacturing, and finishing) typically 50-70% faster than conventional building methods

Can modular extensions be customised to specific needs?

Absolutely! We can customise our modular extensions to suit your needs.

Do modular extensions require the same permits as traditional buildings?

Permits are generally required for Humpy Co. extensions. We can assist you with understanding the regulations in your area and provide guidance through the approval process.

How do modular extensions connect to the existing home?

We design integration points carefully, ensuring seamless connections between your house and the new extension, whether that involves removing walls, creating doorways, or designing covered walkways.

Can you add bedrooms and bathrooms in a modular extension?

Yes, our extensions can include fully-functional bedrooms, bathrooms, and laundry facilities, complete with all necessary plumbing and electrical connections.

What foundation is needed for a modular extension?

Depending on the site conditions and extension design, we typically use concrete slab foundations or elevated steel sub-floor systems, both engineered to provide a solid, long-lasting base.

How do modular extensions handle Melbourne's challenging weather?

Our extensions are built to Australian standards with robust materials that can withstand Melbourne’s unpredictable climate, including proper insulation, quality timber framing or steel construction, and weather-resistant exterior cladding.