Collectively ACSA Incorporated has been conducting business in California for 20 years. ACSA Inc. provides a wide range of architectural design service for k through 14 educational projects. ACSA Incorporated is a well established and experienced design firm providing full architectural and engineering services to the greater Los Angeles, Ventura and Orange Counties. ACSA Incorporated's Education Studio is dedicated to providing professional services that deliver superior architecture, planning and construction building services to clientele commited to an exceptional built environment.

ACSA Incorporated is a small architectural design office consisting of four permanent members and prides itself with the fact that the Principal Architect is directly involved in all of the projects that are undertaken by the firm. This hands on approach ensures consistency and maximizes the quality and accuray of our work.

ACSA & Associates was founded in 1990 by Oscar E. Corea. His idea was to develop a working model of team architecture. The team concept was to be highly inclusive incorporating extensive client, consulting engineer and contractor participation. His belief was that this tupe of participatory design would create architectural design solutions that met the indifidual needs of each client. This team approach has led to several innovative solutions in both design and construction of buildings.

In May of 1995 ACSA became a California Corporation and changed it?s name to ACSA Incorporated, Architects and Planners. This change reflected Oscar Corea?s growing desire to create an architectural studio with educational projects as its core market segment.

ACSA Incorporated?s Education Studio provided the primary impetus for the early growth of the firm. To this day, educational projects account for approximately 90% of the work volume produced by the firm. The studio is made up of highly qualified individuals who have expressed a particular interest in school/educational design as a professional orientation. Our specialists understand the challenges of School District Officials and Educators face and offer ideal solutions formulated from our inherent talent and past experience. ACSA Incorporated?s Education studio is dedicated to providing professional services that will further the goals of education.

  • Architecture

  • Construction Administration

  • Programming

  • Planning

  • Asset Survey

  • Peer Review

  • Los Angeles Unified School District

    New Construction, Alteration and Improvement

  • Conejo Valley Unified School District

    New Construction, Alteration and Improvements

  • Burbank Unified School District

    Alteration and Improvement - ADA Compliance

  • Anaheim High School District

    Alteration and Improvement - Access Compliance

  • Los Angeles Community College District

    New Construction, Alteration and Improvement

  • The Boys & Girls Clubs of Conejo & Las Virgenes

    New Construction

Oscar E. Corea 2nd,  President / Principal, ACSA Incorporated, Architects + Planners
Romano M. Ibe,  Associate, ACSA Incorporated, Architects + Planners
Jun Tanaka,  Project Manager, ACSA Incorporated, Architects + Planners
Christopher E. van Leeuwen,  Designer, ACSA Incorporated, Architects + Planners


California State Polytechnic University, Pamona, California
Bachelor of Architecture, Cum Laude


Architect Member American Institute of Architects
National Council of Architectural Registration Boards
Coalition for Adequate School Housing
National Historical Preservation Society

Professional Credentials

California Registered Architect
Colorado Registered Architect
Arizona Registered Architect
Florida Registered Architect
CA General Engineering Contractor Class A License
CA General Contractor Class B License
DSA Access Compliance Certificate of Training

Background and Experience

Oscar has over 30 years of local experience which are manifested in his holistic approach to the preparation oand execution of construction documents and specifications, as well as modernization of entire school sites. Oscar has also consulted with school districts for aftermath damage assessment from the 1994 Northridge earthquake. District?s liaison with FEMA/OES representatives for the quantification and preparation of the necessary documents and applications required to secure repair funds. Propearation of scope of work documents and specifications for emergency and permanent repairs, as well as hazard mitigation to damaged district?s facilities. He has participated with District?s in the preparation of applications for State Funded Projects (SFP) including the preparation of SP-3A diagrams for the required CDE approval letter. He has also provided master planning services for the development of scopes of work and funding allocations for educational Local Bond funded projects.

Oscar has been responsible for all phases of the practice of architecture on projects ranging from educational and medical facilities to large scale entertainment and hospitality projects, as well as large scale high density multi-familyhousing projects. This diverse project background enables him to respond to the client?s individual needs, while managing the complex architectural processess.

Oscar?s immediate duties include: planning, development of construction documents. plans and specifications, Local Fire Authority and DSA approval, bid assistance and construction administration through project close-out.


Technological Institute of the Philippines
Bachelor of Science in Architecture
Ngee Ann Polytechnic, Singapore
Project Management Degree


United Architects of the Philippines

Professional Credentials

Architect; Republic of the Philippines 1993 Cert. No. 11450

Background and Experience

Ramano has been an invaluable team member at ACSA Incorporated for over seven years. He brings with him over 18 years of local, as well as international experience in the different facets of architecture and building construction.

Romano?s ability to recognize and quickly assess the various issues that pertain to educational projects is truly a great asset to the firm. Through his thorough knowledge of the ADA guidelines as well as TItle 24, California Code of Regulations and his diligent attention to the minutest detail, Romano is able to quickly pin point the critical items and identigy the most economical and aesthetically pleasing avenue towards the solution of the design problem at hand. These qualities have been crucial to the success of numerous prohects and have been a great benefit to our Clients.

Romano?s extensive educational experience includes but is not limited to the following:

? Detailed ADA Surveys and preparation of Feasibility Reports
? As-built conditions; field verification and document preparation
? Schematic Design, Design Development and Construction Document Preparation
? DSA and Local Fire Authority approval processing
? Construction administration, shop drawing and submittal review
? Project close-out and certification


University of Southern California, Los Angeles, California
Bachelor of Architecture, School of Architecture


First Place: LACRA - Small Lots, Smart Designs Competition, 2006

Background and Experience

Jun?s abillity to materialize conceptual and design ideas into coherent workable schemes is truly a great asset to the firm. Jun graduated from the University of Southern California in 2004. He began his career at ACSA Incorporated as a Job Captain in 2005 and became a Project Manager in 2008; during this time he has been a valuable team member with a strong leadership ability and outstanding work ethics.

His past work experience as a superitendent for a large construction company and design associate at a Pasadena design firm helped him to fuse the latest methodologies of architectural design and theories with the realities of construction, building code enforcement and real estate development when designing unique pieces of architecture.

After joining ACSA team in 2005, Jun has worked on numerous educational projects for the Los Angeles Unified School District and the West Los Angeles Community College where he has become the firm?s primary contact spearheading our numerous projects at this campus. These projects include the Pedestrian Promenade recently published in the German Architecture and Urban Design Publication ?Street Furniture?, Braun Publishing AG.


Woodbury University, Burbank, California
Bachelor of Architecture, Woodbury School of Architecture

College of the Canyons, Santa Clarita, California
Associate in Arts, Transfer Studies CSU

Background and Experience

Chris brings fresh perspective and enthusiasm towards design for the firm. He transferred from College of the Canyons with an A.A. in 2006 to Woodbury University, School of Architecture where he graduated with a Bachelor of Architecture in 2010.

He has recieved recognition for his studies at Woodbury University being on the Dean?s list and in 2008 he received Woodbury University?s Trans-disciplinary Studies Award in Academics in recognition for outstanding performance in applying science to social issues. He has also been a contributing participant to multiple exhibitions work in architecture, photography, and graphic design at Woodbury University.

Chris began his professional architectural career with ACSA as a designer in 2009. During this time he has worked on numerous facets of office production including design, construction documents and construction administration. Recently he has been our key team member in the master planning efforts on the North Hollywood High School Complex for the LAUSD. Specifically, he has performed detailed site surveys of eight elementary schools in preparation for comprehensive master planning and modernization proposals. His duties pertaining to these efforts include defining scopes of work in the following categories: Health and Safety, Disabled Student / Staff Accessibility, Technology Infrastructure, Building Improvements / Repairs, New Construction / Expansion, and Sustainable Opportunities. He has also prepared unit cost construction cost estimates, assessed potential phasing strategies for modernization and delivered presentations of proposals to various key stakeholders including asset managers and directors, teacher and parent representatives and local district officials.

Primary Office

ACSA Incorporated
Architects + Planners

Northridge, Ca 91325
tel. 818.349.8954
fax. 818.349.8923

Corporate Officer

Oscar E. Corea, President, Principal

Northridge, Ca 91325
tel. 818.349.8954
fax. 818.349.8923

Project #090903 - DACE Auto Shop Renovation at Fort MacArthur Project #080802 - New Library Building at Limerick Elementary School Project #080303 - Bigfoot Broiler Kitchen at Knott's Berry Farm
Project #071101 - Tommy House in Arizona Project #070801 - Pony Express Coaster at Knott's Berry Farm Porject #070512 - Restroom & Concession Building at West Los Angeles City College
Project #070301 - Sierra Sidewinder at Knott's Berry Farm Project #060104 - New Multi Purpose Building at Telfair Elementary School Project #060103 - Corea Florida Residence
Project #030901 - Rip Tide at Knott's Berry Farm Project #030202 - Silver Bullet Suspended Steel Roller Coaster at Knott's Berry Farm Project # - Corea California Residence
Project #020702 - New Classroom Building at Wonderland Elementary School Project #020302 - New Boys & Girls Club at Los Cerritos Middle School Project #020301 - New Boys & Girls Club at Colina Middle School
Project #010202 - Library Expansion at Banyon Elementary School Project # - Library Addition at Westlake Hills Elementary School Project #991002 - Perilous Plunge Water Coaster at Knott's Berry Farm
Project #990409 - Classroom Building Addition at Madrona Elementary School Project #000000 - Church of Reflections at Knott's Berry Farm