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React & Next.js Development

React Applications Built For Production

High-performance React and Next.js applications — from data-dense dashboards and admin systems to customer portals and reusable component libraries. TypeScript throughout, tested and documented.

Overview

React development that ships and keeps working

React is now the default choice for modern web UIs — but the difference between a React app that delights users and one that becomes a maintenance headache comes down to the decisions made before the first line of code. Architecture, state management, data-fetching strategy, testing approach, and component design — these choices compound over time.

We have been building production React applications since React was new. Our practice covers single-page applications, full-stack Next.js platforms, data-dense dashboards, admin panels, customer portals, and component libraries. Everything we ship is TypeScript-first, accessibility-compliant, tested, and built to be extended by whoever comes after us.

What We Build

Four categories of React application we have shipped repeatedly — each with a distinct set of requirements.

Dashboards

Turn data into decisions with purpose-built dashboards

We build dashboards that surface the right data at the right time — not cluttered screens full of charts nobody reads. Every dashboard we ship is fast, responsive, and designed around the specific decisions your users need to make.

What's included

  • Real-time and historical data visualisation
  • Multi-source data aggregation (APIs, databases, spreadsheets)
  • Interactive charts, tables, maps, and KPI cards
  • Drill-down views and filter/search controls
  • Role-based data visibility — managers see more than staff
  • PDF export and scheduled email reports

Admin Panels

Powerful internal tools for your operations team

Admin panels are where your team actually runs the business. We build them to be fast, intuitive, and comprehensive — with audit logs, bulk actions, permission systems, and the specific workflows your operations team needs.

What's included

  • User management — create, edit, suspend, role assignment
  • Content management and CMS-style editors
  • Bulk operations with confirmation and undo
  • Full audit log of every action
  • Multi-role access control (RBAC)
  • Search, filter, and export across every data table

Customer & Partner Portals

Self-service interfaces your customers actually use

A well-designed customer portal reduces support volume, increases retention, and makes your product feel premium. We build portals that handle everything from onboarding and account management to billing, usage analytics, and ticket submission.

What's included

  • Onboarding flows with guided setup wizards
  • Account management — profile, billing, team members
  • Usage dashboards and subscription management
  • Document upload, download, and e-signature flows
  • Support ticket submission and status tracking
  • White-label options for partner-facing portals

Custom UI Component Libraries

Design systems that scale across your entire product

Ad-hoc styling decisions accumulate into inconsistency. We build component libraries that encode your brand — typography, colour, spacing, interaction patterns — into reusable, fully typed, accessible React components that every team member can use confidently.

What's included

  • Fully typed TypeScript component APIs
  • Storybook documentation with interactive examples
  • Design token system for consistent colour, spacing, and type
  • Dark mode and theme switching support
  • WCAG 2.1 AA accessibility compliance
  • Published as a private npm package for your team

Built to a Higher Standard

These are not optional extras — they are how we build every React application we ship.

TypeScript throughout

No any shortcuts. Full end-to-end type safety means fewer runtime bugs and a codebase that is safe to extend.

Core Web Vitals optimised

Code splitting, lazy loading, image optimisation, and server components — your app loads fast and stays fast.

Fully responsive

Every interface works on mobile, tablet, and desktop — not an afterthought, designed for all viewports from the start.

Accessibility (WCAG 2.1 AA)

Keyboard navigation, screen reader support, focus management, and colour contrast — inclusive by default.

Test coverage included

Unit, integration, and end-to-end tests shipped with every project. You get a codebase you can refactor with confidence.

SEO & Open Graph ready

Structured data, canonical URLs, Open Graph tags, and sitemap generation — built in for every public-facing page.

Clean, documented code

We write for the next developer. Clear naming, consistent patterns, and inline documentation for complex logic.

Design system included

Colour tokens, spacing scale, typography system, and a component library so every new feature looks consistent.

Technologies We Use

Proven, modern tools — chosen per-project for performance, developer experience, and long-term maintainability.

Core
React 18Next.js 14TypeScript
Styling
TailwindCSSShadCN UIFramer Motion
State
ZustandReact QueryReact Hook Form
Data Viz
RechartsChart.jsAG Grid
Testing
VitestTesting LibraryPlaywright
Tooling
StorybookViteVercel / AWS

How a React Project Works

A disciplined delivery process — from discovery to a production deployment your team can maintain.

Step 01

Discovery & Requirements

We start by understanding your users, your data, and your constraints. Who uses this application and what decisions do they make with it? What back-end systems does it need to connect to? What does success look like six months after launch? We document everything before proposing a solution.

Step 02

Architecture & Design Proposal

We produce a technical specification — routing structure, state management strategy, API contract, data-fetching approach, component hierarchy, and deployment plan. You receive a fixed-price quote alongside the spec so you know what you are committing to.

Step 03

Component Design System

Before writing application code, we establish the design system — typography, colour tokens, spacing scale, and the core component library. This foundation means every screen that follows is consistent and every new feature has reusable building blocks to draw on.

Step 04

Iterative Sprint Build

Development runs in two-week sprints. At the end of each sprint you receive a deployed staging link with working features to review and test. Feedback is incorporated into the next sprint — you shape the product as it is being built rather than at the end.

Step 05

Testing & Performance Audit

Before any production release, every screen goes through our QA checklist — functional testing, cross-browser and device testing, accessibility audit (WCAG 2.1 AA), Lighthouse performance run, and a security review. We fix anything below our quality bar before you see it.

Step 06

Deployment & Handover

We manage the production deployment — CI/CD pipeline, environment configuration, monitoring setup, and DNS. You receive full source code, infrastructure documentation, a component library guide, and a handover session with your team.

React Development Pricing Guide

Fixed-price projects with clear scopes — here is what React development typically costs.

Dashboard or Admin Panel

£8,000 – £25,000

A data-rich internal tool — operations dashboard, admin panel, or reporting interface. Connected to your APIs, with role-based access and full TypeScript codebase.

  • Next.js 14 + TypeScript
  • Up to 15 pages/views
  • REST/GraphQL API integration
  • Role-based access control
  • Charts, tables and data export
  • Responsive design + dark mode
Most Popular

Customer or Partner Portal

£15,000 – £45,000

A customer-facing product — account management, self-service portal, or SaaS front-end. Built for scale, polished UX, and long-term maintainability.

  • Full-stack Next.js application
  • Authentication (SSO/OAuth/magic link)
  • Subscription & billing integration
  • Onboarding flows & guided setup
  • Unit + E2E test suite
  • Design system & Storybook docs

Component Library

£5,000 – £18,000

A reusable, documented, fully typed component library — published as a private npm package with Storybook, design tokens, and accessibility compliance baked in.

  • Up to 40 typed React components
  • Design token system
  • Storybook with interactive docs
  • WCAG 2.1 AA audit
  • Dark mode support
  • Private npm package publishing

All prices are estimates — final costs depend on scope and integrations. View full pricing guide →

Frequently Asked Questions

Straight answers to the questions every React project buyer asks.

Should we use Next.js or plain React (Vite/CRA)?
For most projects, Next.js is the right choice — it gives you server-side rendering, static generation, image optimisation, and a well-structured routing system out of the box. Plain React (via Vite) makes more sense for purely internal tools with no SEO requirements or when you need a very lightweight SPA without server infrastructure. We will give you a clear recommendation based on your use case during discovery.
How do you handle state management?
We use the simplest approach that works for the problem. For server data, React Query handles caching, background refetching, and loading states cleanly. For global UI state (modals, notifications, user preferences), Zustand provides a minimal, type-safe store without the boilerplate of Redux. We avoid over-engineering state — most state problems are actually data-fetching problems.
How long does a React project typically take?
A focused dashboard or admin panel typically takes 6–12 weeks. A full customer portal with authentication, billing, and onboarding flows runs 12–20 weeks. A component library for a medium-sized design system takes 4–8 weeks. Every project gets a milestone plan in the proposal so you know exactly when each deliverable lands.
Do you work from existing Figma designs?
Yes — if you have Figma designs, we implement them faithfully with pixel-level attention to spacing, typography, and interaction states. If you do not have designs, we work from wireframes and build the UI as part of the project, establishing a design system as we go. Many clients do not have a designer and rely on us for both design and implementation.
Will the codebase be maintainable after the project ends?
This is a priority, not an afterthought. We use conventional folder structures, consistent naming, TypeScript throughout, no circular dependencies, and we document every non-obvious architectural decision inline. The handover includes a codebase walkthrough session with your team. We write code that the next developer — including your in-house team — can understand and extend.
Can you integrate with our existing back-end or third-party APIs?
Yes — this is routine on every project. Whether your back-end is a Node.js API, a Python Django service, a Supabase database, or a third-party SaaS with a REST API, we design a clean data-fetching layer on the React side that abstracts the integration details from the UI components. We also write the API contract documentation if it does not already exist.

Let's build your React application

Share your requirements — what you are building, who it is for, and what integrations you need. We will come back with a technical architecture recommendation, a realistic timeline, and a fixed-price quote within one business day.

Free scoping call · No commitment · UK-based team