If you want a different concept of Laundry - the nearest within 5 mins walk from your hotel look at "I Love My Laundry". A combination of a full service Laundry. Coffee bar with excellent coffee, a restaurant and a Wine Store. Designed for busy young media types and financial professionals who live in the loads of New Apartment blocks in and around the financial district and the city centre.

Here is a write up on the concept that started a few years ago : http://www.capetownmagazine.com/arts-culture/i-love-my-laundry/104_22_18632 Haven't done laundry there but have had coffee and Dim-Sum!

There are now three branches in the centre of the city. The nearest is at the bottom of Bree Street, less than 5 mins walk from the Cullinan. Probably a bit more expensive than laundries in the suburbs - but a lot cheaper if you add the taxi fare. You probably don't want to carry your dirty laundry on the bus! All branches are open 7 to 7, 7 days a week - and until 9pm some Thursdays.