how to cost material and labour for the extension
Planning your project. Ground floor extensions are typically more affordable than converting the loft or excavating basement space. Renovation costs for a same level extension are roughly between $60,000 and $200,000 depending on your situation, including material, labour and project management (ready to move in). same level house extension in New Zealand will cost approximately $60,000 to $200,000+. Adding a room or extending your living area on the ground floor are affordable ways of creating more space.