The core staff of LOA Architecture offers the full-service design and project management expertise of a larger firm, while providing the responsive and efficient service of a small practice.

Our project lead and support team represents decades of experience in all types of new construction and renovation projects, both large and small.

Tim Habben

Tim Habben


Tim has more than 3 decades of management experience, concentrating on architectural projects for educational institutions throughout the region. He brings a wealth of knowledge and a keen understanding of the unique demands that face school officials responsible for delivering modern facilities within ever-decreasing budgets.

After working with founder Luis Acosta for 14 years, Tim purchased and rebranded the firm as LOA Architecture. He is committed to discovering and implementing innovative solutions to modern architectural challenges, while maintaining the firm’s reputation of providing professional-quality services, on time, and on budget.

Registered Architect – Colo. Lic. #202154

B.Arch, Iowa State University
M.Arch, University of Colorado Denver

NCARB – National Council of Architectural Registration Boards

Gregg Allen

Gregg Allen

Project Architect, LEED AP

As Project Architect Gregg has more than 25 years of architectural experience, including work in the U.S. and overseas. He has been involved in large-scale government, commercial, institutional, correctional, and educational facilities, as well as single- and multi-family residential projects.

Recently he has concentrated on aircraft maintenance, warehouse, storage, communication, vehicle maintenance, and general office facilities.

Gregg is involved in all aspects of the architectural practice including project management, planning, construction documentation, and construction administration.

Registered Architect – Colo. Lic. #202141

B.Arch, Montana State University
MBA, University of Denver

LEED – Green Building Certification Institute

Arron Elmore

Arron Elmore

Architectural Designer

Arron graduated from Southern Illinois University in May of 2012, and moved to Colorado to attend the University of Colorado Denver for his Masters degree. Durning his studies at UCD, Arron was hired by LOA as an Intern in January, 2015. After graduating with his Masters degree in May of 2015, he started as a full time LOA employee.

While attending school, Arron was involved in the Design Build Bluff program in collaboration with the University of Utah, and the Navajo Nation. One semester was devoted to the design of 2 cabins for the Navajo Nation, while another semester was spent living in Bluff Utah, building the cabins. Arron is working towards his IDP hours, and has begun studying for the ARE’s, with hopes of becoming a licensed architect within a few years.

B. Arch, Southern Illinois University Carbondale, 2012
M. Arch, University of Colorado Denver, 2015

Professional Experience
Construction Documents Lead
​Patio Design Lead
Design Build Bluff
Bluff, UT

Ann Dang LOA Architecture

Ann Dang

Job Captain Designer

During her undergraduate studies, Ann has been involved in multiple design organizations including AIAS (The American Institute of Architecture Students) which sparked her passion for leadership and involvement in the design field. Other experiences include studying abroad in Copenhagen, Denmark for a semester, and hosting a panel discussion in Seattle on race & gender equality in architecture.

Ann plans to attend graduate school in the next few years and eventually become a licensed architect. Some of the LOA projects that Ann has been involved with consists of the Paul Sandoval Campus buildings, Aurora Public Schools Security Vestibules, and Horizon High School renovations.


B. Environmental Design with an Emphasis in Architecture,
University of Colorado at Boulder, 2019