Our Services
Full-service commercial architecture from programming through construction closeout.
GP Architecture provides complete architectural services for commercial clients throughout Southern California. Our team delivers consistent quality, responsiveness, and code expertise at every stage — from schematic design through construction closeout.
Commercial Tenant Improvements
GPA has delivered tenant improvement projects for office, technology, R&D, and corporate clients across Southern California. We navigate landlord coordination, building department submittals, and ADA compliance so you can focus on your business.
- Office and corporate interior build-outs
- Technology and R&D workspace design
- Multi-tenant commercial spaces
- ADA and Title 24 compliance
- Landlord coordination and approval packages
Medical Office Design
Healthcare facilities demand precision: ADA access, infection control clearances, HCAI (formerly OSHPD) review where applicable, and patient flow that actually works. GPA brings deep experience in medical office design for specialist practices, multi-specialty clinics, and outpatient facilities.
- Specialist and primary care offices
- Multi-specialty clinic layouts
- Outpatient and ambulatory facilities
- ADA, HCAI (OSHPD), and infection control compliance
- Plumbing, MEP coordination
Manufacturing & Industrial Facilities
From light manufacturing to heavy industrial, GPA designs functional, code-compliant facilities that support operations, meet fire and building code requirements, and leave room for future growth. We understand Ventura County and SoCal entitlement processes.
- Light and heavy manufacturing
- Warehouse and distribution facilities
- R&D and laboratory spaces
- Mezzanine additions and tenant improvements
- Fire code and hazardous materials compliance
Retail & Mixed-Use
GPA designs retail environments and mixed-use spaces that balance brand identity, operational efficiency, and customer experience — while keeping permit timelines and construction costs predictable.
- Retail store design and build-outs
- Restaurant and food service spaces
- Mixed-use ground-floor commercial
- Inline and anchor tenant improvements
- Storefront and façade upgrades
Institutional & Public Projects
GPA brings the same rigor to institutional and public sector work — community facilities, civic buildings, educational spaces, and government projects — with full awareness of public procurement processes and the regulatory requirements that come with publicly funded work.
- Civic and government facilities
- Community and non-profit buildings
- Educational and training facilities
- Public procurement and agency coordination
- Accessibility upgrades and barrier removal
Multi-Family Residential
GPA designs townhomes, apartments, and mixed-use residential projects that balance density, livability, and code compliance — working within California's evolving housing regulations to deliver projects that pencil out for developers and create quality homes for residents.
- Townhome and apartment design
- Mixed-use residential over retail
- Density and zoning optimization
- Title 24 and CalGreen compliance
- Entitlement and planning support
Construction Administration
Design doesn't end at permit issuance. GPA stays engaged throughout construction — reviewing submittals, responding to RFIs, conducting site observations, and working alongside contractors, construction managers, and owner's representatives to keep the project on track. Our goal is simple: help the whole team deliver the project as designed, on schedule, and with as few surprises as possible.
- Submittal and shop drawing review
- RFI response and clarification bulletins
- Site observation visits
- Punch list and project closeout
- Certificate of occupancy support
LEED & Sustainable Design
GPA integrates sustainable design strategies from day one — reducing operating costs, improving occupant comfort, and meeting green building certification requirements where required or desired.
- LEED certification strategy and documentation
- Energy modeling coordination
- Title 24 compliance (California Energy Code)
- Daylighting and passive design strategies
- Materials specification for sustainability credits
Not Sure Where to Start?
Describe your project and we'll let you know how GPA can help.