Our Team

BSc (Building Economics | Cost Engineering), University of Dar es Salaam, Tanzania. MSc, Construction Economics & Management, Ardhi University, Tanzania. PhD, Construction Management, Nelson Mandela University, South Africa.

Dr. Lello is a registered Quantity Surveyor | Cost Engineer with over 20 years of professional experience in the pre & post contract administration of construction projects. Before founding Artza Assets, Dr. Lello worked for Innovex Group Ltd, a practising and consulting QS firm in Dar es Salaam between 2013-2024. Further, Dr. Lello worked with Holtan (East Africa) Ltd. a building contractor as Senior Quantity Surveyor, between 2012-2013, after working with MaS-Q Associates Ltd., a prominent QS consulting firm with over 35 years existence in the industry between 2008-2011. Moreover, Dr. Lello has worked with ABECC Ltd., a subsidiary consulting firm of Ardhi University since 2008 to date. His earlier quantity surveying projects include construction of: (1) Pre-Fabricated Temperature Insulated Pharmaceutical Storage Facility Warehouse in Dodoma, Mtwara, Chato, Dar es Salaam, and Mwanza, (2) Mkwawa Lecture Theatre at Mkwawa University College of Education in Iringa, (3) Commercial-Residential Building for Fatma Properties Ltd in Dar es Salaam, (4) Extension of Transportation Lab Building for University of Dar es Salaam, (5) Office block for NHIF Mbeya, (6) Office fit-out and interior installation of Gaming Board of Tanzania in Dar es Salaam & Dodoma, (7) Fit-out and interior installation of RAMADA Express Hotel, Dar es Salaam, (8) Fitout and interior installation of BancABC in Dar es Salaam, (9) Fitout and interior installation of Barclays Bank branch, (10) Fit-out and interior installation of Mwanga Community Bank in Kilimanjaro. His current experience includes responsibility in major commercial, industrial and/or temperature-controlled pharmaceutical warehouses, residential, leisure, educational and religious building projects. His key professional skills span across cost planning and management, project procurement, contract administration, estimating and pricing analysis. Dr. Lello (PhD) is also a quantity surveying lecturer in the Building Economics Department at Ardhi University, Dar es Salaam. Dr. Lello has published research articles related to quantity surveying/cost engineering, lean construction supply chain, knowledge management, and green innovation, in international journals.

• Lello, D. S., Kansheba, J. M., Bhat, M. A. (2026). Knowledge infusion and challenges within outbound dispersed consultant-supplier interfaces. Engineering, Construction and Architectural Management.
• Lello, D. S., Huang, Y. C., Kansheba, J. M. (2024). Knowledge ambidexterity in construction project-based organisations: predicaments of knowledge networking intention within outbound consultant-supplier interfaces in Tanzania. International Journal of Managing Projects in Business. 17(1), 126-152.
• Lello, D. S. & Emuze, F. A. (2024). Reconceptualizing a model for lean construction supply chain. In D. B. Costa, F. Drevland, & L. Florez-Perez (Eds.), Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC32), Auckland, New Zealand.
• Lello, D., Huang, Y., Emuze, F., Alananga, S. (2024). Professional knowledge infusion and service performance within outbound construction service supply chains in Tanzania: can networking and stakeholder support play cards? International Journal of Construction Management. 24, 1643-1654.
• Lello, D., Huang, Y., Alananga, S., Emuze, F. (2023). The impact of outbound collaboration behaviour on service performance in Tanzania's construction projects: the mediating role of knowledge infusion. Int. J. Constr. Supply Chain Manag., Vol. 13, No. 1 (pp. 92-111).
• Mtendamema, S. J., Sospeter, N. G., Lello, D. S., Kikwasi, G. J. (2023). Dispute-prone clauses in standard conditions of building contracts for construction projects in Tanzania: a qualitative study. The 17th Built Environment Conference, ASOCSA, 09-10 October 2023, CSIR International Convention Centre, Pretoria, South Africa.
• Lello, D. S. & Emuze, F. A. (2026). A model for lean project-based supply chain deployment in construction. International Journal of Construction Management.
• Lello, D. S. & Emuze, F. A. (2026). Modelling the Drivers of Lean Innovative Capability and Efficiency in Tanzanian Construction Supply Chains: a PLS-SEM Study. Construction Innovation.
• Lello, D. S. & Emuze, F. A., Kansheba, J. M. (2027). Untapped lean supply chain innovation and efficiency pathways in construction projects. Construction Innovation.
• Lello, D. S., Kansheba, J. M. (2027). Curtailing green organisational inertia on green service innovation performance through green network activities and green stakeholder support.