Architecture Firm Website Design: Extension Architecture Case Study
Focus Keyword: architecture firm website design
Architecture firm website design should reflect the same level of precision, restraint, and structure found in the built work itself. For Extension Architecture, the objective was to create a scalable digital system that elevated the portfolio while supporting long-term growth.
Category: Website Design · Design Systems
Duration: Ongoing (Current Full-Time Role)
Role: Website Design Lead, Design Systems
Deliverables: Design System · Website Design · Component Library · Information Architecture · Mobile-First Build · SEO Structure · Performance Optimisation
The Challenge
Extension Architecture had strong projects but an inconsistent digital presence. Their work was being presented through fragmented layouts, outdated mobile experiences, and a site without any underlying system logic.
The challenge was to build an architecture firm website design that balanced premium presentation, usability, and scalability within a single framework.
Process
Design System First
A token-first design system was established before page design began.
The system was structured across three layers:
- Tokens: colour, typography, spacing, shadows, and sizing variables
- Components: buttons, cards, forms, navigation, and content modules
- Templates: project pages, listings, process pages, and contact layouts
This approach ensured consistency across a growing portfolio while making future updates significantly faster.
Portfolio Experience
Projects were designed as editorial experiences rather than standard gallery entries.
Each project follows a consistent structure featuring full-width imagery, contextual information, and a curated visual sequence that allows the architecture to remain the focal point.
Navigation
Navigation was intentionally simplified to four primary destinations:
- Projects
- Process
- About
- Contact
The result is a clear and confident experience that prioritises content over interface complexity.
Mobile-First Approach
With more than 60% of visitors arriving via mobile devices, every layout was designed mobile-first and extended to larger breakpoints later.
Performance optimisation, progressive image loading, and Core Web Vitals targets were considered throughout the build process.
Lead Generation
The enquiry experience was streamlined through a simplified contact flow, reduced form fields, and clearer expectations around process and timelines.
Outcome
- Design system currently supports 120+ components
- Mobile session duration increased by 48%
- Lead form completions improved 2.3× within 90 days
- Core Web Vitals remain within green thresholds
- New project pages can be assembled in under two hours
- Design system adopted across additional digital properties
Key Takeaway
Effective architecture firm website design doesn’t compete with the work it presents. It creates a framework that allows projects to be experienced with clarity, consistency, and scale.
For Extension Architecture, the website became more than a portfolio—it became a durable system capable of supporting the practice as it grows, evolves, and expands its body of work.