Residential Extensions Auckland

Transform your Auckland home with expert structural engineering for extensions and additions.


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Auckland Home Extension Specialists

Creating more space for Auckland families to grow and thrive.

Based in Bucklands Beach, Auckland, we specialise in residential extensions that maximise your property's potential. From single-storey additions in Mt Eden to double-storey extensions on the North Shore, we understand Auckland's unique challenges - from weathertightness requirements to volcanic soil conditions. Our structural engineering ensures your extension integrates seamlessly with your existing home whilst meeting all Auckland Council requirements.


Kitchen Extensions

Expand your kitchen and living areas with open-plan designs that suit Auckland's indoor-outdoor lifestyle. Expert structural solutions for wall removal and large span openings.

Second Storey Additions

Add valuable space above with carefully engineered upper floor extensions. We assess existing foundations and provide strengthening solutions where needed.

Deck & Outdoor Areas

Structural design for decks, pergolas, and covered outdoor entertaining areas that complement Auckland's climate and lifestyle.

Garage Conversions

Transform existing garages into functional living spaces with proper structural modifications, insulation, and weatherproofing solutions.

 Extension Portfolio  All Services

Your Auckland Extension Experts

Landmark Consultants brings decades of residential extension expertise to Auckland families. From our Bucklands Beach office, we've helped hundreds of homeowners create the space they need whilst adding value to their properties. We understand Auckland's building requirements, from weathertightness details to seismic design, ensuring your extension is both functional and compliant.

Auckland Extension Challenges


Auckland's residential extensions face unique challenges that require specialised engineering expertise. Our maritime climate demands careful weatherproofing, whilst volcanic soils create foundation complexities.

From Devonport's heritage character requirements to Remuera's slope stability issues, each Auckland suburb presents distinct considerations. We navigate Auckland Council's consent processes, ensuring your extension meets the Unitary Plan requirements whilst maximising your site's potential within height-to-boundary and site coverage rules.

Our local expertise ensures smooth approvals and successful project delivery.





Single-storey extensions

Ground floor additions for kitchens, living areas, and bedrooms. We handle foundation design for Auckland's challenging soils and ensure seamless integration with existing structures.

Double-storey additions

Maximise your site with two-storey extensions. We assess existing foundations and provide strengthening solutions to support additional loads safely.

Weathertightness solutions

Critical junction details between new and existing structures. Our designs prevent moisture ingress whilst maintaining structural integrity in Auckland's climate.

Consenting support

Complete structural documentation for Auckland Council consent applications. We navigate the process efficiently, reducing delays and ensuring compliance.



Why Choose Us for Your Extension


Extension specialists

Dedicated focus on residential extensions with deep understanding of Auckland's building requirements and council processes.


Seamless integration

Expert design ensures new additions complement existing structures whilst maximising space and natural light.


Value-focused approach

Extensions designed to maximise property value whilst creating functional spaces that enhance your family's lifestyle.

Serving All Auckland Areas

Professional extension services throughout Auckland's diverse suburbs.

Extension Areas

North Shore, Central Auckland,
Eastern Suburbs, Western Auckland,
South Auckland, Rodney,
Franklin District

Auckland Office

233 Bucklands Beach Road, 
Bucklands Beach, Auckland 2012


Phone: +64 27 4404 195
Email: admin@landmarkconsultants.nz

Extension Consultation

Free Initial Consultation
Site visits available throughout Auckland



Ready to Extend Your Auckland Home?

Transform your space with expert structural engineering. Free consultation to discuss your extension possibilities!


Start Your Extension Project