Custom Design System
A full design system built for your product — tokens, primitives, components, patterns, and governance.
We define the foundations, build the component library, and hand over a living system your team can extend.
Typical range
$25k – $75k
Fixed fee + optional retainer · 4–8 weeks
Ranges are typical engagements. Final pricing is scoped on the call once we understand your surface, timeline, and team.
What you get
Every deliverable is production-ready and handed over with the docs your team needs to own it.
How the engagement works
Audit
Inventory of your current UI, spot duplicates and drift, identify the highest-leverage primitives to build first.
Foundations
Tokens, typography scale, color system, spacing grid, motion language — the language that everything else speaks.
Components
We build the component library in waves, prioritising what your product ships first.
Patterns & handoff
Composed patterns, documentation, governance, and team enablement so you own the system after launch.
Pairs well with
Free Skyfall UI kits most commonly used as a starting point for this engagement.
Custom Design System FAQ
Do we start from scratch, or build on your free UI kits?
Either. Most engagements start from one of the free Skyfall kits (Aegis, Ledger, Beacon, Bazaar, or Relay) as a foundation — then we customise tokens, primitives, and components to your product. Starting from scratch is also fine.
Do you migrate our existing UI to the new system?
Not in a single engagement. We deliver the system + a pragmatic migration plan (which screens to touch first, which components are highest-impact to swap). Migration itself is usually a retainer or a Frontend Implementation engagement.
What about governance after handoff?
We leave you with a short governance playbook — how to add new tokens, when to add a new primitive vs. compose, how to version releases. Optional ongoing retainer for design-system stewardship.
Ready to scope a custom design system engagement?
Book a 20-minute discovery call. We'll map your surface, team, and timeline, then come back with a scoped plan.