Black soldier fly larvae (BSFL) is considered as an alternative sustainable protein source for pigs, poultry and fish feed as well as a means of converting and utilization of organic waste. To achieve these roles, it is necessary to develop appropriate culture methods and understand their growth on different feeding substrates. This study therefore investigated the effect of three different substrates on the growth, development and proximate composition of BSFL. Feeding substrates mainly from Hotel Wastes (HW), Market Wastes (MW) and mixture of Market and Hotel Wastes (MHW) were used separately for the BSF culture. Efficiency of BSFL to consume different substrates and reduce the waste load to manure was also investigated. HW was found to be more attractive to the BSF eggs (5.90kg) but not significantly different (P?0.05) to MW substrate which had 5.34kg. MHW had the lowest production of (4.53kg) which was significantly different (P?0.05) to HW and MW. In evaluating the efficiency to digest the waste load, it was observed that younger larvae of 3 days old were able to consume and reduce the waste load faster within 4 days than larvae of 6 days’ old that took 9 days to reduce the same amount of waste load. Larvae fed on HW was seen to take a shorter time (7 days) to develop into pupae with significance difference for all treatments (P?0.05). BSF larvae of 0.019 kg subjected to HW grew faster to a final weight of 0.68kg while MHW and MW production was lower with 0.567kg and 0.41 kg respectively. All treatments were seen to be significantly different (P?0.05) on the production of the final weight of BSFL. The study concludes that the larvae reared in MHW substrate is a better option to grow BSF larvae compared to MW and MHW due to its high crude protein content of 51.57%, (P?0.05).