How I Structure React Components for Teams of 10+

Feature folders over type folders

When more than a handful of developers touch the same repository, organizing by file type (components/, hooks/, utils/) scales poorly. New features sprawl across directories and imports become a maze. I standardize on feature-based folders: each domain owns its components, hooks, API adapters, and tests. Shared primitives live in a thin ui layer. That structure makes ownership obvious in code review and limits merge conflicts.

Compound components for flexible APIs

Complex widgets — modals, menus, data tables — benefit from compound components: a parent exports named subcomponents that share implicit context. Consumers compose markup without prop drilling twenty booleans. Documenting the pattern once in Storybook or a short README prevents one-off forks of the same UI.

Hooks as the business logic seam

I push data fetching, normalization, and side effects into hooks with explicit names (useProjectFilters, useInvoiceTotals). Presentational components receive ready-to-render data. That split speeds up testing and lets backend contract changes touch fewer files.

Context, Zustand, and props

Context works for stable, low-frequency data like theme and auth session. For high-frequency updates or cross-route state, a small Zustand store with selectors avoids rerender storms. I reserve prop drilling for strictly local trees where the data flow is obvious in under three levels.

JSDoc where it matters

Not every function needs an essay. I add JSDoc to exported hooks and public component props: parameters, return shape, and invariants other teams must respect. That investment pays off when onboarding developers who will not grep the implementation on day one.

Closing thought

Architecture is a team contract. Folder layout, component APIs, and state boundaries should make the right change easy and the wrong change visible in review. That is how you keep a React codebase legible at ten-plus engineers.