top of page


John Allen
Founder and President
Alek Diachenko
Alek.Diachenko Headshot .jpg

John graduated from SDSU with a BS in economics and completed post-grad work at USD in Real Estate Investments, Development and Finance. Working in San Diego for 15 years, Mr. Allen has a keen understanding of local zoning laws and requirements that many development professionals overlook. John has a strong background in processing difficult entitlements on challenging development sites and the construction of infill housing projects. Specializing in acquisition, financial analysis, project management and entitlements, Streamline has navigated the acquisition, development, entitlement, approval and construction of over 500 units to date, with hundreds more currently in the pipeline. 

Alek has ten years of experience in the built environment, ranging from capital markets to project management, construction & design, and sustainability. In his most recent experience with JPI, a top 10 national multifamily developer, Mr. Diachenko co-led the Capital Markets efforts for the Western Division and participated in the sourcing and execution of over $600MM in debt & equity multifamily financing for land, construction, and recapitalizations. Prior to that, Mr. Diachenko spent five years with JLL on both their investment sales and capital projects teams. Alek received his MBA in finance from UC Davis, and holds his CalBRE Salesperson license and LEED accreditation.

David Allen
VP Construction

David boasts nearly 40 years of experience in the real estate development industry, ranging from site acquisition to design, land use entitlements and construction of residential projects. Mr. Allen has worked all along the Southern California coast and has tremendous experience in infill multi-family projects. He holds numerous licenses and certifications: he is a licensed General Building Contractor, General Engineering Contractor, Certified Land Use & Environmental Planner, and Real Estate Broker. David provides consulting services and general contracting, project management and construction management and oversight for Streamline Development Group projects.

Color logo with background.png
bottom of page