Expert Residential Design & Engineering Services

From personalized designs to structural engineering, we bring your vision to life with safe, compliant, and beautiful solutions.

A modern luxury home with large glass windows, warm interior lighting, and a landscaped courtyard, representing Affinity Design Group’s custom home design and engineering services.

Our Custom Home Design & Engineering Services

  • Modern custom-built home with sleek architecture and a serene landscape, representing Affinity Design Group’s custom home design services.

    Custom Homes

    Build the home of your dreams with our personalized design and engineering solutions. We collaborate with you to create unique layouts and designs tailored to your needs.

  • Bright and spacious living room extension with large windows and garden views, showcasing room addition design services.

    Room Additions

    Need extra space? From bedrooms to expanded living areas, we design room additions that seamlessly integrate with your home’s existing structure while enhancing its value.

  • Partially restored home under construction after disaster damage, highlighting Affinity Design Group’s structural rehabilitation services.

    Disaster Recovery

    Has your home suffered from disaster damage? Our structural rehabilitation services restore your property and improve it to meet current safety standards.

  • Charming single-family home surrounded by greenery, representing seismic and wind retrofitting solutions for improved safety.

    Seismic & Wind Retrofitting

    Protect your home from earthquakes and strong winds with retrofitting solutions that enhance structural safety and meet local compliance requirements.

Service Scope

Our residential design and engineering services encompass every stage of the planning and design process:

• Site investigations to gather measurements and data.

• Foundation, seismic, and wind analyses.

• Structural engineering calculations and 3D modeling.

• Detailed construction drawings and documents.

• Submittal of plans to building departments for approval.

• Structural observation reports for compliance and safety.

Your Partner in Creating your Perfect Home

Affinity Design Group specializes in creating custom homes and residential spaces that reflect your vision and lifestyle. Whether you’re building a new home, adding a room, or retrofitting for seismic safety, our team delivers expert designs backed by precise engineering. Licensed across 10 states, we ensure your home is not only beautiful but also safe and up to code.

Why Choose Affinity Design Group for Residential Design?

Efficient Processes

From design to permit approvals, we guide you every step of the way.

Technical Expertise

 Seamless integration of design and structural engineering.

Code Compliance

All designs meet safety and building codes.

Personalized Designs

Homes tailored to your vision and lifestyle.

 FAQs

  • Yes, we specialize in personalized home designs that reflect your needs and preferences, backed by precise engineering.

  • Most room additions are designed and approved within 4–6 weeks, with timelines depending on the scope.

  • Absolutely! We prepare and submit all necessary documents for building permit approvals.