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Extensions & Additions

More room, matched to your home — second storeys, living areas, bedrooms and alfresco additions.

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Recent work

Our own finished jobs across the Central Coast, Lake Macquarie, Newcastle and the Hunter — tap any photo for more.

Bathroom renovation — BelmontBEFORE / AFTERBathroom renovation — Belmont Kitchen renovation — CessnockBEFORE / AFTERKitchen renovation — Cessnock Laundry renovation — GorokanLaundry renovation — Gorokan Laundry renovation — GorokanLaundry renovation — Gorokan Laundry renovation — CessnockLaundry renovation — Cessnock Merbau deck — AberdareMerbau deck — Aberdare

Watch one come together

Before, the build, and the finished room — filmed on our own sites, start to finish.

Bathroom renovation — Toronto
Bathroom strip-out & rebuild — Mannering Park

What clients say

Word for word, from Google and Instagram.

Kitchen, bathroom & laundry — Cessnock
★★★★★
We couldn't be happier with the incredible work Koori Constructions did on our home. They transformed our existing kitchen, bathroom and laundry into a stunning new kitchen, bathroom, laundry and butler's pantry that has completely exceeded our expectations. Their attention to detail, quality craftsmanship and commitment to delivering a beautiful result were evident throughout the entire renovation. Thank you for bringing our vision to life!
— Susan · Google · Kitchen, bathroom & laundry — Cessnock
Rear deck
★★★★★
Brad and his team did a fantastic job at completing my rear deck. They had a can do attitude and proved very knowledgable. I'd definitely use their services again and would recommend their services to others.
— Graeme · Google · Rear deck
Deck & outdoor project — Blackalls Park
★★★★★
Brad & the team were very punctual and great with communication. They were a friendly team and I am very happy with the final product.
— Allan · Instagram · Deck & outdoor project — Blackalls Park

How it works

1. Tell us about itUse the instant quote tool or call Brad. Photos and a few answers — a figure in minutes.
2. Free site measure-upWe confirm the scope on site and give you a fixed written price. No obligation.
3. We build it rightOne crew, weekly updates, daily photos — and the price doesn't move after you sign.

Good questions

Do I need council approval for an extension?

Most need a CDC or DA; very small additions may be exempt. We assess and advise before you spend a dollar.

Can we live at home during the extension?

Yes, in most cases — we section off the work area and keep your kitchen and bathrooms usable.

How long does an extension take?

Single room: 8–12 weeks. Multi-room or second storey: 12–20 weeks, plus 4–12 weeks for approvals.

Will it match the existing house?

Yes — we match bricks, boards, tiles and colours, and show you samples if exact materials are discontinued.

What if I change my mind mid-build?

Minor changes are usually fine; structural changes need a written variation first.

Ready when you are

Get an indicative figure in minutes, or book a free site measure-up. Central Coast, Lake Macquarie, Newcastle and the Hunter.

Get an instant quote → Call us — 0448 368 354