The building is the story. Zanzibar Coffee House occupies a four-storey merchant house on Mkunazini Road, built in 1885 by Sir Tharia Topan — the Indian-born businessman who served as Wazir (chief minister) to Sultan Said Bargash of Zanzibar, and who was at the time one of the wealthiest private figures on the East African coast. The teak-wood doors, the carved window frames, the painted balustrades and the internal courtyard are 140 years old and, remarkably, substantially original. The upper floors contain eight individually designed guest rooms under the same ownership; the ground floor and the rooftop are the café.
The operation is owned and run by Utengule Coffee Lodge, the coffee estate in the Tanzanian Southern Highlands that supplies the Arabica. That vertical integration — from estate to roastery to this café on Mkunazini — is what separates Zanzibar Coffee House from every other cafe in Stone Town, most of which source green beans from a broker and either outsource the roasting or execute it badly. Here the beans are known, the roast is tight, and the espresso extraction is actually correct. For a cup of coffee in East Africa, the standard is surprisingly high.
The menu is short and well-edited. Espresso, cappuccino, macchiato and the house latte — all at or near the bottom of the price range for a sit-down café in Stone Town, and all executed better than any competitor. A small range of filter coffees, brewed by the cup to order. Fresh juices (passion fruit, pineapple, mango, the house lime and ginger). Homemade cakes — the orange-and-almond cake and the Zanzibar spice cake are the reliable choices. Breakfast runs until 11:00 and includes an excellent mandazi (Swahili sweet fried bread), a simple omelette on the house bread, and a full breakfast of fruit, toast, cheese and eggs at a price that remains below USD 10.
The rooftop terrace is the physical reason to come. Four flights of narrow teak-staircase up from the ground floor, it opens onto an open deck with 360-degree views over the Mkunazini quarter — the rooftops of Stone Town in the foreground, the minarets of the mosques and the towers of the old Arab houses in the middle distance, the Indian Ocean at the horizon. Early morning (07:00–09:00) is the temperature-appropriate time; late afternoon, immediately before the call to prayer, is the most atmospheric. The rooftop is shaded by a pergola and decorated with the original balustrades, which are alone worth the climb.
For a visitor working through Stone Town on foot, the café is usefully positioned: a minute from Mkunazini Market, three minutes from the House of Wonders, five minutes from Lukmaan, seven minutes from the seafront at Tembo House. For a writer or consultant who requires a neutral working address with good coffee and reliable wifi, the ground-floor courtyard is one of the best options in the medina.
A practical observation: the rooftop is small (approximately twenty covers) and fills predictably at sunset between 17:30 and 18:30. Arrive either at 16:30 for a window seat and the slow build, or after 19:00 when the terrace clears and the temperature drops. The café closes at 21:00; it does not serve dinner.