Spannenberg and Son is your leading team of local builders with a reputation for detail and excellence. We specialise in offering our services to the North Shore, Northern Beaches, and Campbelltown. If you are looking for a reliable and professional build company to help you with upcoming renovations including extensions or additions, or you are looking to build from scratch, you have come to the right place. We warmly welcome enquiries about upcoming projects, contact us today to see how we can get you started on renovating or building the home of your dreams!


When you are looking for the right building company, you want a team that is certified, insured, experienced, and dependable. For over 35 years, the Spannenberg team have been designing and constructing homes throughout Sydney.

Our goal is to provide clients with an honest, open, and collaborative experience that accounts for you and your family’s needs and hopes – after all, this home is for you, not us. We help you turn a house into a home by offering custom design and build solutions, we don’t believe in a one-size-fits-all approach.


Additions & Extensions

Are you thinking that it’s time to extend the living space that you have? Perhaps your family is growing, or you just want that extra space to enjoy? At Spannenberg and Son, we have made this desire a reality for many Killara families over the years. From a ground floor extension to a first floor or second storey addition, our team have the skills, experience, and drive to deliver an outstanding build solution for you and your home.

Design & Construct

Our design and construct process will help bring to life your desired style, ideas, and needs for your house. But with this said, we also welcome clients that come to us with little to no idea of what they are looking for, and with our local knowledge and experience, we guide you through where to start with options to suit your style and budget. Our team will handle the finer details from documentation, red-taping, and council approvals to ensure the process is as stress-free and smooth as possible.

With decades of experience behind us, we are watchful for common errors or pitfalls that may occur during a build or renovation. Get in touch with our friendly team to get started with the dream build experience at Spannenberg!


We can update and transform your current home to suit your needs and budget. By choosing to work with Spannenberg, you are choosing bespoke design, professional service, and attention to detail. Ben and his skilled team are one of the leading home renovation companies in the North Shore and beyond.

Working with Spannenberg means choosing a single company that manages your whole project, from beginning to end. From design, structural engineering, construction, and project management, your development will be handled by Spannenberg’s director himself, Ben Spannenberg or another of our talented personal project managers.


Many homeowners find that completing renovations or extensions is a hectic and lengthy process. At Spannenberg, we take the guesswork out of it and keep you informed every step of the way. You won’t have to be concerned about anything as our team have the experience and expertise to help guide you through the build process. Our process looks like this:

  • Consultation : For all projects, we will meet on-site at a small charge to review your needs and talk about design possibilities to satisfy your style and budget.
  • Design : Our team will work with you to draft your new home or renovation. This step includes numerous sketch designs and floor plans.
  • Formal Quotation :We provide you with a detailed, written quotation that covers itemised costs and all your pricing options.
  • Proceeding : After you accept the quote, our team starts working in the background to arrange: engineering particulars, building specifications, energy efficiency assessments (BASIX), and working sketches. These are submitted to the council on behalf of you.
  • The signing of the contract : Another meeting is organised, and the Housing Industry Association (HIA) provides a formal contract.
  • Build : The construction begins, and your project manager will keep you updated throughout the whole process.
  • Completion : Following the build, our team performs a thorough inspection to ensure that the result meets our high standards.
  • Maintenance and guarantee : Did you know that Spannenberg offers a statutory six-year structural warranty on their work and that there is a three-month defects liability period? This gives you peace of mind that if an aspect is substandard, we will come out and rectify any issues promptly.


An effective renovation or build is about so much more than just the final result. Spannenberg and Son take the best from modern, custom design and best practice building approaches to bring exceptional home transformations in Killara. To book a consultation with one of the home renovations experts from Spannenberg to discuss your next project, simply contact us online or call our local office on 1300 455 459.