Granny Flat Builders & House Extensions

Transform Your Home
With Expert Extensions

As granny flat builders we maximise space, value & light with granny flats, granny apartment builds, rear, side‑return, or second‑storey extensions. Serving Leichhardt, Marrickville, Newtown, Balmain, Annandale, Rozelle, Glebe, Petersham, and Inner West Sydney.

Extend Your Home with Seamless, Stylish Extensions

Expert House Extensions in Inner West Sydney

Across Leichhardt, Marrickville, Newtown, Balmain, Annandale, Rozelle, Glebe, Petersham, and Inner West Sydney, we deliver expert house extensions Sydney and granny flats. As granny flat builders we design and build granny flats, dual occupancy homes, ground-floor and second-storey extensions that blend seamlessly with your existing home. We combine innovative design with superior craftsmanship to create spaces that enhance your lifestyle and add value to your property.

Our House Extension Services

Comprehensive extension solutions tailored to your needs

Modern granny flat design Sydney - Resco Group.

Granny Flats & Granny Apartment

We design and build standalone granny flats or granny apartments on your property for family, guests, or rental income. Quality builds that comply with local regulations and blend with your home.

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Ground floor house extension Inner West Sydney by Resco Group.

Ground Floor Extensions

Expand your home with stylish ground-floor additions, more space, no compromise. Perfect for growing families or those seeking additional living areas and better flow.

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Second storey house addition Inner West Sydney.

Second-Storey Additions

Add extra bedrooms, a master suite, or home office without giving up your backyard. Maximize your property's potential with elegant second-storey extensions tailored to your needs.

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Kitchen and bathroom extension Sydney by Resco Group.

Kitchen & Bathroom Extensions

Upgrade your lifestyle with tailored extensions to your kitchen and bathroom. Create spacious, modern areas that enhance your daily living and add lasting value.

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Rear and side return house extension Inner West Sydney.

Rear & Side Return Extensions

Maximize your property's footprint with rear and side return extensions. Transform unused outdoor space into valuable indoor living with open-plan flow and natural light.

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Dual occupancy home build Sydney - Resco Group.

Dual Occupancy Homes

Create two separate dwellings on one block with dual occupancy homes. Ideal for multi-generational living or investment, each with its own address and full independence.

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Why Choose Resco Group for Extensions

Excellence in design, construction, and integration

Seamless Integration

Our extensions blend perfectly with your existing home, matching architectural style and quality

Increased Value

Well-designed extensions significantly increase your property's market value

Expert Planning

We handle all design, permits, and approvals, ensuring compliance with local regulations

Local Expertise

Deep understanding of Inner West Sydney building codes and architectural styles

Our Extension Process

A refined approach to extending your home

01

Design Consultation

We assess your needs and create a design that seamlessly integrates with your existing home architecture.

02

Planning & Approvals

Our team manages all permits, approvals, and compliance requirements with local Inner West Sydney regulations.

03

Construction

Expert builders execute the extension with precision, ensuring minimal disruption to your daily life.

04

Handover

We ensure every detail is perfect, delivering a seamless extension that feels like it was always part of your home.

Our Latest Projects

See the quality and craftsmanship we bring to every extension

House extension project Inner West Sydney - Resco Group.

75 Bayview Street

Inner West Sydney

Ground floor extension and granny flat Sydney.

326 Catherine Street

Bexley NSW 2207

Modern family house extension Inner West Sydney.

Modern Family Extension

Inner West Sydney

Locations / Areas

We build and renovate across Sydney with a strong focus on our home region and extended service areas.

Primary location

Inner West

Our home base. We serve Leichhardt, Marrickville, Newtown, Balmain, Annandale, Rozelle, Glebe, Petersham, and the wider Inner West with new builds, renovations, and extensions.

Secondary locations

Extended service areas

  • Bayside
  • Georges River
  • North Sydney
  • Sutherland Shire

Client Testimonials

Hear from homeowners who have extended their homes with Resco Group

Kayla Bei

1 year ago

Resco Group did a wonderful job with the kitchen renovation for my house. I was very impressed with how clean they left everything. I highly recommend...

Walter

1 year ago

Billy and the team helped me create the perfect kitchen space, truly went above and beyond to bring my vision to life! I can definitely recommend Resc...

Ali Hamka

3 years ago

Amazing group of boys to work with, work is very professional without a steep price, highly recommended 👋

hass elgohary

4 years ago

Had a speedy and reliable service by Billy, who went above and beyond to hardwire and install our bathroom mirror. Started on time so we were off to a...

Kire Solakovski

4 years ago

Billy installed led down lights, new board, power points and switches. Quality work, job was done with care and in a timely manner. Nothing was too di...

Alexis Jeffery

4 years ago

Very reliable and on time. Provided great feedback and professional advice. Would highly recommend!!

Mj 985

4 years ago

These guys are easy to deal with. Resco group are very knowledgeable and professional when they were at my house for some electrical work i needed don...

5.0
(21 reviews)
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Frequently Asked Questions About House Extensions in Sydney

Common questions about granny flats, house extensions, and dual occupancy homes in Sydney

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