Testing a ZAR 2,883,000 renovation budget for a 195 m² Johannesburg home

AishaSlate

Homeowner
Established
I want to complete the renovation without extending the house, but hidden damp or outdated services could make the ZAR 2,883,000 budget unreliable. The property is described as a 195 m² coastal home in Johannesburg, so I also need to clarify whether “coastal” refers to its style or to some form of environmental exposure.

The work covers the kitchen and bathrooms, new floors and paint, an electrical review and modest energy improvements. Before fixing the contingency, which inspections or written scope details would you obtain? I am particularly concerned about access for pipework, moisture testing, the boundary between essential and optional electrical work, contractor exclusions and lead times for materials.
 
I’d provisionally carry 15–20%, but keep it outside the contract sum rather than letting it disappear into allowances. Ask each contractor to list exclusions explicitly, especially making good after plumbing or electrical access, damp repairs, disposal and temporary protection. Also establish which prices are fixed, which are allowances, and how long the quoted material prices remain valid.
 
I wouldn’t settle on a contingency percentage until “coastal home in Johannesburg” is clarified: does that describe the design, or actual exposure to coastal conditions? The moisture investigation changes materially. Before pricing, map plumbing access, test suspect damp areas and have the electrical scope separated into required work versus optional upgrades. Then sequence demolition and intrusive checks before final orders. Ask about long-lead materials and whether any proposed work needs approval, because permit timing can upset an otherwise sensible programme.
 
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