Basement Conversion

This Manurewa basement was originally a cold, damp and underused space beneath the existing home. Alder Homes converted it into a fully self-contained two-bedroom second dwelling, creating valuable additional living space within the home's existing footprint. A key challenge was managing below-ground moisture. A specialist internal waterproofing system creates a protected dry zone within the existing concrete-block basement, with perimeter drainage directing external moisture away from the new interior construction. The completed dwelling includes a full kitchen, two generous bedrooms with walk-in wardrobes, bathroom, separate toilet and dedicated laundry with an additional toilet. Separate power and water services allow the downstairs dwelling to function independently without disrupting the home above. The project demonstrates how careful planning, waterproofing and compliant construction can transform a difficult existing basement into warm, dry and practical living space.