Business Details
21 Years
experience
Residential Architecture & ADU Design Services
Established in 2005, Xavier Design Group is a modern, creative design studio dedicated to residential architecture. We specialize in new construction, home renovations, room additions, and interior modifications, believing exceptional design should be accessible to all. Our team blends contemporary amenities with structural integrity, offering fixed-fee services including 3D modeling, construction documents, and permit coordination.With expertise in ADU conversions and partnerships with top California builders, we streamline the design process through pre-designed plans and transparent pricing. Client testimonials highlight our professionalism, timely execution, and ability to simplify complex projects while exceeding expectations.
Services
ADU Conversions
Residential Design
Construction Documents
Pre-Designed Plans
Permit Coordination
Architectural Renderings
Engineering Consultation
Project Bidding Assistance
Home Renovations
Room Additions
Details
- Year established: 2005
Highlights and features
- Over 18 years of experience in residential architectural design
- Fixed-fee packages with unlimited design iterations
- Pre-designed ADU plans for faster, cost-effective projects
- Expert permit coordination with California municipalities
- Partnerships with top-rated California home builders
What people say
Exceptional professionalism
Stellar response time
Excellent design quality
Met tight deadlines
Top-notch expertise
Services
ADU Design
We specialize in ADU conversions and new accessory dwelling units that comply with California regulations. Our pre-designed plans reduce costs while maintaining quality. Services include site-specific documentation, engineering coordination, and permit submittals for attached/detached units ranging from 500-1200 sq ft.
Residential Architecture
Our residential design services cover new construction, renovations, and room additions. We create detailed 3D models, comprehensive construction documents, and coordinate with engineering consultants. Projects include modern single-family homes and historically sensitive renovations across California.
Permit Assistance
We handle full permit coordination with California municipalities, including plan check corrections and submittals. Our expertise streamlines approvals for ADUs, renovations, and new construction. Services include stamped engineering documents and compliance with local zoning codes.
Pre-Designed Plans
Our pre-designed ADU models eliminate custom design costs while maintaining quality. Available in 500, 750-800, and 1200 sq ft configurations, these plans include full kitchens, bathrooms, and structural details. Plans are immediately available for permit submission with minimal modifications.
Construction Documentation
We produce comprehensive construction documents including site plans, elevations, sections, and structural calculations. Our detailed specifications ensure accurate bidding and construction. Packages include electrical, plumbing, and framing plans meeting California Title 24 requirements.
People
Xavier Hernandez
Founder
With 18 years of architectural experience, Xavier leads residential design projects emphasizing accessibility and innovation. His expertise in California building codes ensures practical solutions that balance creativity with regulatory compliance.
Byron Marroquin
Project Manager
Overseeing project timelines and client communication, Byron ensures seamless execution from concept to completion. His coordination with engineers and municipalities maintains project efficiency and regulatory adherence.
Alejandro Resendiz
Architect
Alejandro develops detailed design solutions, specializing in 3D modeling and space optimization. His technical expertise translates client visions into functional, code-compliant residential structures.
Edgar Lopez
Energy Consultant
Edgar specializes in energy efficiency compliance, ensuring designs meet California Title 24 standards. His expertise in sustainable building practices optimizes energy performance without compromising design integrity.
Questions
What types of ADU designs do you offer?
We offer pre-designed ADU plans in 500, 750-800, and 1200 sq ft configurations. Options include attached, detached, and garage conversions with full kitchens, bathrooms, and modern amenities.
How do your fixed-fee services work?
Our fixed-fee packages include unlimited design revisions, 3D modeling, construction documents, and permit coordination. Prices start at $3,500 for 500 sq ft ADUs with transparent, all-inclusive pricing.
Can you help with city permitting?
Yes, we handle complete permit coordination including site plans, engineering stamps, and plan check corrections. Our experience expedites approvals for ADUs and renovations across California municipalities.
Do you work outside California?
While our primary focus is California, we can assist with out-of-state projects through remote collaboration. Local code requirements may necessitate additional consultants for non-California locations.
What's included in your pre-designed plans?
Pre-designed plans include site-specific documentation, structural calculations, electrical/plumbing layouts, and energy compliance reports. Packages are ready for immediate permit submission with minimal customization required.
