(Category:Contractor) Building Pros – Granny Flat Builders Johannesburg offers NHBRC‑registered full turn‑key house and granny flat building and renovation across Johannesburg metro. Building Pros – Granny Flat Builders Johannesburg, part of the national Construction‑IT network, are NHBRC‑registered and operate across Johannesburg and surrounding suburbs since around 2015. They specialize in new house builds, granny flats, garages, bathroom & kitchen renovations, alterations and extensions. Their full turn‑key service includes design coordination, project management, drywall, tiling, plumbing, electrical, painting and roofing. Unique for vetted local agents, quality assurance and free online quoting platform.