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Sustainable engineering isn’t a trend — it’s a requirement. With Auckland’s ongoing urban sprawl and over one-third of the country’s population living in the region, the pressure on infrastructure and resources is growing fast. Sustainable engineering provides the framework needed to manage this growth responsibly while designing cities that can perform well long into the future. Reshape is an engineering consultancy working across Auckland and wider New Zealand , with approx

Meeting H1 compliance is a critical step in ensuring building durability and occupant comfort in New Zealand’s climate. In practice, it’s also one of the areas where late design decisions can create unnecessary cost, stress, and time pressure. We are an engineering consultancy with around 20 years’ experience working across New Zealand , and we’ve delivered H1 compliance on more than 400 projects , the majority of which are stand-alone residential homes . Over that time, we’v

"This is wonderful news. Thank you so much…. The cost is killing the scope – cost per SqM was 5 digits, but you’ve managed to pull 20% or a bit more out of the joinery cost."  – Mark This is a regular comment we get from our H1 Modelling clients . This is one of the most tangible benefits of accurate H1 VM1 modelling : the ability to make smarter, cost-effective design decisions without compromising compliance or occupant comfort. Using H1 Modelling to Optimise Glazing One o

Big changes are coming for granny flats in New Zealand . From early 2026 , small standalone dwellings up to 70 m²  may be built without a building consent , provided they meet certain conditions. This “consent-free” option is designed to make it easier for homeowners to add a small secondary dwelling, but it does not remove the need for compliance with the NZ Building Code , particularly H1 Energy Efficiency requirements . For builders, designers, and homeowners, understandin

The latest update to H1/AS1  has removed the Schedule Method  entirely. This is one of the biggest changes to H1 since 2021, and it affects how insulation, glazing, and overall energy efficiency are shown for consent. This shift might look like extra work at first, but in reality, it’s going to save money, reduce over-specification, and create more comfortable homes . And if you want the best results for both budget and performance, using the H1 calculation method  or full H1

If you design or build in New Zealand, the 2025 update to H1 VM1  affects insulation levels, glazing performance, and how councils expect compliance to be demonstrated. Because the new H1VM1 is more detailed and more tightly policed, many teams are outsourcing their modelling to specialists. We provide fast, accurate H1 VM1 modelling designed to reduce redesigns, control costs, and keep your consents moving. If you want to find out more about our H1VM1 services, contact us he

We are moving into an age where all buildings will be designed to reduce the spread of pathogens and at the same time become carbon zero...

This article gives insight into making new and existing buildings carbon zero. Approaches include reviewing your energy sources, energy...

Overview This article is targeted at building owners, property managers, and development managers and gives insight into possible...