Barghash is credited with building much of the infrastructure of Stone Town, including piped water, public baths, a police force, roads, parks, hospitals and large administrative buildings such as the House of Wonders.
Baba yake, Seyyid Said bin Sultan, alikuwa mfalme mlowezi wa Sultan wa mwanzo wa Zanzibar. Barghash anasifika kwa ujenzi wa miundo mbinu ya Mji Mkongwe, ikiwemo maji ya bomba, vituo vya polisi, barabara, bustani, hospitali na majumba mengi ya kiutawala kama vile Beit el Ajaib.