Browse Forums Building A New House 1 May 13, 2024 10:38 pm Hello all, I am in planning and budgeting stage for constructing a double storey house in Sydney with basement for car parking. The basement will have 4 cars parking, media room, games room and a store room. I would like to understand if someone has recently gone through or going through building basement. Interested to know: - basement size - materials used - suspended slab, ret wall etc. - approx. cost Thank you. Re: Build Basement for car parking - Sydney 2May 14, 2024 6:01 am You could be looking at anywhere between $400,000 to $800,000 depending on so many variables including: 1. Site conditions - what material is being excavated 2. Engineering design - does the engineer want contiguous piles with capping beams and shot crete along each boundary to retain the neighbours property? if so this could be $250-300,000 on it's own ( recently been out to trade pricing on a job and this is the lower end of the quotes) 3. What is the hydraulic engineer's design like? how is stormwater water being dealt with 4. Generally the best wall material will Dincel or one of its variables with a concrete slab above 5. What are the internal finishes inside the garage Architectural Homes & Duplexes - specialising in custom designing homes to your budget Get a Free Onsite Consultation Today or send a PM for information, questions or advice. I looked into it a few years ago and my conclusion was to just build a carport that will support panels and get a system installed separately. The company I looked at had… 1 14816 DIY, Home Maintenance & Repair to do it properly you need to dig out the garden and waterproof the outside of the wall. There are some products you can put on the face of the bricks but the water is… 2 20027 Just got response from council. Pouring concrete into subfloor does not require any building permit. 4 11490 |