White painted brick rear extension opening onto a deck under a timber pergola

Services · Home extensions · Cronulla

Home extensions in the Sutherland Shire.

More room for the way you live, designed and built by a licensed, insured local builder with 15+ years’ experience.

Get a free quote Call 0418 219 759

Home extensions

Outgrown your home? Extend instead of moving.

Whether the family has grown or the place was always a bit small, you could sell and buy something new. But there’s no telling what you’ll get in a new place, or what it will cost to maintain.

You already know your own home. If everything else about it suits you, an extension can give you the space you need without leaving.

Master Builders Association of New South WalesMember of Master Builders NSW · Licensed & insured, Lic. No. 464683C
White kitchen and dining area with herringbone timber floor, skylight and bifold doors opening outside

Every household is different.

  • A new bedroom and bathroom

    For an adult child moving back home, a new baby on the way, or an elderly loved one who needs a place to stay.

  • A bigger kitchen

    Older homes often have kitchens that are far too small. Extending this area, and taking out part or all of an outside wall, makes room for cabinets, a pantry and possibly an island.

  • A rumpus room or retreat

    Somewhere to relax and unwind, whether that’s watching sport, listening to music or having friends over.

What’s included

What we can do for you.

Every job is different. These are the kinds of work we can take on; tell us what you have in mind and we’ll talk you through the options.

  • Bedrooms & bathrooms

    Extra bedrooms and bathrooms for a growing or changing household.

  • Kitchen extensions

    More room for cooking, storage and a pantry or island.

  • Living & rumpus rooms

    A rumpus room, retreat or larger living area.

  • Alterations

    Reworking the rooms you already have so the old and new spaces work together.

Our process

Straightforward, from first chat to handover.

  1. 01

    Have a chat

    Call 0418 219 759 or send an enquiry. Tell us what you’d like to do and roughly what you’d like to spend.

  2. 02

    Site visit & design

    We look at your home and block, talk through what you need, and work through the design with you.

  3. 03

    Clear quote

    You get a clear quote before any work starts, so you know what’s included.

  4. 04

    Build & handover

    We run the job, coordinate the trades and keep you updated, then walk through the finished work with you.

Why JN Building Design

A local builder you can check out.

  • 15+

    Years’ experience

    More than 15 years designing, building and renovating homes.

  • 464683C

    Licensed builder

    Our NSW builder’s licence number. Ask to see it.

  • Insured

    Insured work

    Insured for the residential building work we do.

  • MBA

    Master Builders NSW

    A member of the Master Builders Association of NSW.

Based in Cronulla, building across the Sutherland Shire, the Eastern Suburbs and the Inner West.

See the suburbs we cover

Related services

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Get a free quote

Let’s talk about your project.

Tell us what you have in mind and we’ll talk you through the options. The quickest way to start is a phone call.

Get a free quote Call 0418 219 759

JN Building Design Pty Ltd · ABN 13 673 592 633 · Builder’s Licence 464683C · Licensed & insured · Master Builders NSW member

Master Builders Association of New South WalesLicensed & insured · NSW Builder Lic. No. 464683CABN 13 673 592 633