Modderfontein Farmers Market Franz Hoenig Haus Gardens, High Street, 1619 Johannesburg Local is Lekker! Come and visit the authentic Modderfontein Farmers Market set in the stunning grounds of the Franz Hoenig Haus in Modderfontein. A variety of fresh produce, preserves, delicious baked goodies and handmade gifts and creations. The perfect family outing.