React Development Services for UK SaaS and Proptech Teams
React development is the building of fast, component-driven web frontends (dashboards, portals, SaaS features, and MVPs) using React and Next.js, the screens your customers live in every day. MicroPyramid is a 12-year-old engineering team that ships these for UK startups, SMBs, and enterprises, fast on real-world networks and accessible by default.
Why UK Teams Choose Us for React
Three reasons UK founders and product teams pick MicroPyramid over a local agency or a generic offshore frontend team
Accessible, Privacy-Aware Frontends
Our React frontends are built accessible to WCAG 2.2 by default. Browser-side data handling (cookie consent, analytics and third-party tag loading, and PII held in client state) is designed deliberately, with AWS eu-west-2 (London) available for data residency.
GBP Billing via Stripe or GoCardless
Invoices in GBP, collected via Stripe or GoCardless Direct Debit. No currency conversion headaches, no wire-transfer friction. Billing that fits how UK businesses actually operate.
Direct Ownership, Not a Ticket Mill
Experienced React engineers directly own every engagement. You will not be passed to a delivery layer of junior developers. The engineer who scopes your frontend in discovery is the one who builds it.
React Development Services for UK Teams
Five services covering the full range of React delivery, from UK-focused MVPs and dashboards to design systems and AI-ready frontends
React Single-Page Applications
Fast, component-driven SPAs for UK SaaS and proptech products. We build the customer-facing experience your users live in every day: responsive, accessible, and quick to load over real UK mobile networks.
- Component architecture and state management
- Client-side routing and data fetching
- WCAG 2.2 accessible interfaces
Dashboards, Portals & Admin Panels
Data-dense React dashboards and client portals for UK SaaS and proptech, the screens decision-makers actually use. We handle tables, charts, filtering, and role-based views backed by APIs hosted on AWS eu-west-2 (London).
- Analytics dashboards and reporting views
- Customer and admin portals
- Role-based access and secure data flows
Component Systems & Design Libraries
Reusable React component libraries and design systems so your UK product stays consistent as it scales. We build accessible, documented components your in-house team can extend long after we hand over.
- Reusable component libraries
- Design-system implementation
- Storybook documentation and theming
React Migration & Upgrades
Move a legacy frontend onto React, or bring an ageing React codebase up to current versions and patterns, without destabilising a product that paying UK customers already rely on.
- Legacy frontend to React migration
- React 18+ and hooks modernisation
- Performance and bundle-size fixes
AI-Ready React Frontends
The product layer that turns AI into a usable feature: chat interfaces, semantic search, copilots, and streaming responses built into your React app. UK teams building on LLMs need a frontend that makes it genuinely useful.
- Chat and copilot UIs
- Semantic search interfaces
- Streaming and real-time UX
Public, search-indexed site? See Next.js development. React engineers inside your own team? See dedicated development teams.
React or Next.js: Which Does Your Product Need?
The first question most UK teams ask. In short: dashboards and internal tools fit a React SPA; public, SEO-critical products fit Next.js
Client-Rendered React (Vite)
App-firstThe browser renders the app after loading a JavaScript bundle. Best for authenticated dashboards, portals, and internal tools where SEO is irrelevant and the experience lives behind a login.
- Authenticated dashboards and admin panels
- Internal and operational tooling
- Fast, app-like interactions
- SEO not a requirement
Next.js (SSR / SSG)
SEO-firstPages are rendered on the server or pre-built at deploy time, so they load fast and are crawlable. Best for public, content-led, and marketing-heavy products where search ranking and first-load speed matter.
- Public, content-led and marketing sites
- SEO and Core Web Vitals critical
- Server components and API routes
- Strong first-load performance
Most UK SaaS dashboards are a better fit for a React SPA, while public-facing and search-critical sites benefit from Next.js. We recommend the one that fits your product, not the one we would rather sell. If smaller, faster bundles matter more than ecosystem size, compare with SvelteKit Development Services.
Best Fit For
- UK proptech or SaaS teams shipping React dashboards, portals, and customer-facing features
- startups, SMBs, and enterprises that need accessible, WCAG 2.2-aware React frontends from day one
- Next.js builds where SEO, fast first loads, and careful data handling matter
- products that need a React partner to own frontend execution, not just a list of tickets
Not the Right Fit When
- static brochure sites with no real product or component complexity behind them
- engagements looking only for staff augmentation without delivery ownership
- teams wanting a framework other than React with no React in the roadmap
- projects adding AI as a slogan rather than a concrete React feature or workflow
How a UK React Engagement Starts
Every engagement starts by clarifying the real frontend problem: user journeys and context before any components
Clarify the Frontend Problem
We define the real user journey and product problem before writing components, scope and context first, every time.
Scope the Right Version
We prefer shipping a focused, well-architected React slice over an oversized build, the smallest valuable version first.
Build Accessible, Tested React
We ship typed, accessible (WCAG 2.2) components with tests, with careful browser data handling (consent, analytics loading, PII in state) wired to your APIs and hosted on AWS eu-west-2 when residency matters.
Ship, Iterate, Improve
The goal is not just shipping code. It is helping your React product become more useful and easier for your UK customers to rely on.
Our React Stack for UK Delivery
Modern React tooling across the frontend, with testing and AWS eu-west-2 (London) deployment for UK data residency
Core Frameworks
Libraries & State
Tooling & Cloud
How to Get Started as a UK Team
We recommend starting with a Frontend Discovery Sprint: clarify the journeys and delivery plan before committing to a full React build. All engagements billed in GBP.
Frontend Discovery Sprint
Clarify the user journeys, component architecture, and delivery plan before committing to a full React build. Priced in GBP, delivered with daily async updates.
- User journey and UX clarification
- Component architecture and state plan
- Delivery roadmap
- Accessibility and SEO planning
React MVP Sprint
Ship a focused first version in React or Next.js with foundations genuinely ready to iterate on, not a throwaway prototype.
- Launchable React product slice
- Accessible, tested components
- Clear deliverables and timeline
Feature Delivery Sprint
Implement one meaningful React feature end-to-end, from design to production.
- One meaningful frontend feature
- End-to-end implementation
- Retainer or time-and-material
Selected React Work
A product we build and run ourselves on React and Next.js. More client work is in our full portfolio.
Frequently Asked Questions
Straight answers to what UK founders and CTOs ask before starting a React or Next.js build.
React vs Vue vs Svelte: how do you choose for a UK build?
React is the safest default for most UK teams: the largest hiring pool, the deepest ecosystem, and long-term maintainability when you later bring work in-house. Svelte/SvelteKit produces smaller, faster bundles and is excellent for lean, performance-sensitive frontends; Vue sits between the two. We choose based on your hiring plans, performance needs, and existing stack rather than fashion, and if SvelteKit is the better fit, we will tell you and can build it. See our SvelteKit Development Services for that path.
What drives the cost of a React project?
Cost is driven by scope, the number and depth of API and third-party integrations, how much custom UI and data-visualisation is involved, accessibility and compliance requirements, and whether we are building new or untangling a legacy frontend. Rather than quote blind, we start with a fixed-scope Frontend Discovery Sprint that gives you a concrete estimate, timeline, and architecture plan, billed in GBP via Stripe or GoCardless, before you commit to a full build.
How do you handle personal data in a React frontend?
We treat the browser as part of your data-protection surface: cookie and consent handling before any non-essential script loads, analytics and third-party tags gated on consent, no unnecessary PII held in client-side state or logged to third parties, and forms that post over your own APIs. Where data residency matters we host on AWS eu-west-2 (London). Data protection is part of the frontend design from the start.
How long does it take to build a React app or MVP?
It depends on scope, integrations, and how settled the requirements are. We start with a short discovery sprint that fixes scope and architecture and ends with a fixed estimate and timeline, then ship the smallest valuable version first: a launchable slice you can iterate on, not a throwaway prototype.
Can you migrate our legacy frontend to modern React?
Yes. We migrate legacy jQuery, AngularJS, or server-rendered frontends to React incrementally (strangling the old UI screen by screen rather than risking a big-bang rewrite), and we bring ageing React codebases up to React 18+ with modern hooks, tooling, and performance and bundle-size fixes, all without destabilising a product paying UK customers already rely on.
Who owns the code, and do you build React Native too?
You own everything. You retain full ownership of all source code, IP, and infrastructure, committed to your repositories and deployed to your cloud accounts as we build, so there is no lock-in if you later move the work in-house; we sign NDAs and IP-assignment agreements before starting. And yes, we build React Native apps that share most of their code across iOS and Android, so a single team and codebase can cover web and mobile.
Build Your Next React Frontend With an Experienced Team
If you need React engineers with GBP billing and WCAG 2.2 accessibility, we are ready to talk.