Building Extensions in the Hunter Valley

Servicing all areas including rural and remote regions throughout the Hunter, Northern NSW and surrounds.

Evolve Your Space

Is your current property setup not giving enough? If it's time to make some changes to the structure and practicality of your space, count on D&C Projects for a high-quality extension. We tackle building extensions in Northern NSW from the perspective of how the building is currently used and where it needs to go next.


We navigate through any potential constraints, opportunities and long term outcomes before starting drawings. Once the parameters are set, the process moves among a single team through design, drafting, approvals and construction. From Singleton to Cooranbong and all surrounding rural and remote farming areas, we assist with building extensions throughout the Northern Region including landscaping, sheds, decks, outdoor areas, home extensions, second story additions and detached granny flats and studios.


Call our Newcastle office on (02) 4088 8369 and start the journey with D&C Projects alongside you.

Add On Without Complication

Alterations can feel daunting when you’re working around an existing building, but the right guidance makes all the difference. D&C Projects focuses on keeping the journey clear and manageable, helping you understand how each decision affects design, approvals and construction.


We assess the existing structure, site conditions and planning controls before shaping a solution that works now and into the future. This joined up approach is especially valuable when extending occupied homes or operational buildings where timing and coordination matter.


By staying involved from early consultation through to the build stage, D&C Projects helps ensure alterations and add ons become a natural progression.

Brick Houses With Garages, Carport, Light Gravel Yard — D&C Projects in Tamworth, NSW

Faces of Humanity

Frequently Asked Questions

  • What’s the difference between an alteration and an extension?

    Alterations typically involve modifying existing spaces, while extensions add new areas to a building. Many projects include a combination of both to improve layout and functionality.

  • Do building extensions require council approval in NSW?

    In most cases, yes. Approval requirements depend on the scope of work, zoning and local planning controls. Early planning helps clarify what approvals are needed.

  • Can alterations be done while a building is still in use?

    Often they can. Careful staging and coordination can allow work to proceed while parts of the building remain occupied, depending on the project and safety considerations.