Services

OUR SERVICE

Professional Architectural Drafting & Design Services in Cerritos, CA

Cornerstone Design & Drafting delivers precise, code-compliant residential and ADU drafting services across Los Angeles and nearby communities. Our team partners with homeowners, contractors, developers, and property investors to create professional permit-ready drawings for remodels, additions, new construction, conversions, and accessory dwelling units (ADUs). Whether you need floor plans or full construction drawing sets, we deliver accuracy, efficiency, and dependable local expertise.

We proudly serve Cerritos, Los Angeles, Pasadena, Burbank, Long Beach, Downey, Norwalk, Bellflower, Lakewood, and surrounding cities.

Core Residential Design & Drafting Services

Custom Home Design

Personalized home plans created to match your lifestyle, property layout, and zoning standards while maximizing space, style, and construction efficiency for permit approval and long-term value.

Residential CAD Drawings

High-precision CAD drawings produced with industry software for clean, detailed construction plans that ensure engineering coordination, contractor clarity, and efficient project execution.

Home Remodeling Design

Detailed renovation layouts for kitchens, additions, and full home remodels designed to improve flow, functionality, and permit requirements.

Architectural Drafting Services

Complete architectural drafting packages including floor plans, elevations, sections, notes, and schedules prepared to meet California and Los Angeles building permit standards.

Floor Plan Drafting Services

Accurate, dimensioned floor plans illustrating room layout, walls, doors, circulation, and spatial flow to support smooth construction coordination.

As-Built Drawings

Accurate documentation of existing structures is essential for capturing the true site conditions. This process is vital for successful renovations and conversions, ensuring compliance with aiding in precise future design planning.

Specialized Drafting & Construction Services

Structural Drafting Services

Framing, foundation, and load-bearing layouts prepared to support engineering review, code compliance, and safe structural construction for residential and multi-unit projects.

Interior Drafting Services

Interior plans documenting cabinetry layouts, fixture placement, material coordination, and space planning that improve functionality while maintaining design intent.

Mechanical Design Drafting

HVAC and ventilation system layouts detailing duct routes and airflow coordination to meet energy efficiency standards and building code requirements.

Construction Drawing Sets

Complete drawing packages combining architectural, structural, mechanical, and electrical plans prepared for city permits, and construction execution.

Electrical Layout Drafting

Electrical plans mapping outlets, lighting, switches, circuits, and panels to support safe installation, job-site coordination, and full municipal code compliance.

Blueprint Revisions & Updates

Fast edits and plan updates reflecting site changes, building code adjustments, or client design revisions required for approvals and ongoing project coordination.

ADU Design & Permitting Services

Backyard ADU Design

Site-specific planning for accessory dwelling units (ADUs) involves careful consideration of several key factors. These include setback requirements, utility routing, access paths, and privacy concerns.

California ADU Code Compliance

Zoning research and regulatory guidance ensuring designs fully comply with state ADU laws and Los Angeles municipal standards to streamline permit approvals.

ADU Permit-Ready Drawings

Complete ADU drawing sets formatted specifically for city review, zoning verification, and efficient approvals to reduce resubmittals and processing delays.

Garage Conversion ADUs

Detailed layouts converting existing garages into legal living units while addressing structure upgrades, fire safety standards, utilities, and housing code compliance.

Technical Capabilities

Industry-Leading Drafting Technology

We utilize AutoCAD drafting systems to produce accurate, scalable, and easily editable drawings.

2D & 3D Visualization

Our optional 2D and 3D layout visualization services help clients see designs clearly before construction begins—reducing design changes and project costs.

Full Project Coordination

We collaborate with contractors to ensure your design documents align with the construction and permitting process.

Our Simple 3-Step Drafting Process

We Keep Your Project Clear, Compliant & On Schedule

At Cornerstone Design & Drafting, we’ve refined a straightforward, client-focused workflow that ensures clarity, accuracy, and compliance at every step. Whether you’re planning a custom home, remodeling project, or ADU development, our process keeps your project on schedule while eliminating costly planning errors. We manage zoning checks, design coordination, and drafting updates so your final plans are prepared for fast city approval.

CONSULT

We review your goals, property needs, zoning rules, and project scope to create a clear plan path.

Design

Our team drafts accurate CAD plans and layouts customized to meet code and construction needs.

SUBMIT

We finalize and deliver permit-ready drawings for fast city approval and smooth construction start.

"Working with Cornerstone Design & Drafting was an excellent experience from start to finish. We needed permit-ready drawings for our home remodel, and their team guided us through every step with clear communication and expert knowledge. The drawings were incredibly detailed and the city approval went smoothly with no revisions needed. I highly recommend them to anyone needing professional home design services in Los Angeles."

John Doe Homeowner, Cerritos CA

"As a contractor, accuracy and speed are critical, and Cornerstone consistently delivers on both. Their architectural drafting services are precise, organized, and easy to build from. We’ve used them for floor plans, electrical layouts, and structural drafting, and every project has been approved quickly thanks to their code-compliant documentation. Their reliability makes them our go-to drafting company."

Jessica Monroe General Contractor, Long Beach

"Cornerstone handled our ADU design and permit drawings and made the process stress-free. They were knowledgeable about California ADU regulations and created plans that fit our property perfectly while staying compliant with all zoning rules. The permitting process was fast and smooth, and construction started without any drawing issues. Their professionalism and attention to detail are outstanding."

Thomas Alfred Property Investor, Pasadena

LET'S START

Ready to Bring Your Dream Home to Life?

You don’t have to worry if your project is a full remodel, an addition, or an entirely new architecture. We have the experience and creativity to make it happen. Book a free consultation today and see how we can transform your vision into a beautiful, sustainable space.