What Next.js Is — And Why It's the Default Now
Next.js is the React framework that most serious React apps are now built on. Where plain React renders everything in the browser (bad for SEO, slow on first load), Next.js can render pages on the server or pre-build them as static files — so content is there instantly, for both users and Google. It also bundles routing, image optimisation, and API routes, which means less boilerplate and faster builds. In short: the performance and SEO wins that used to take a specialist weeks, built into the framework.
What We Build With Next.js
SEO-ready by default.
Server-side rendering and static generation mean Google sees fully-formed pages — the technical SEO foundation plain React can't give you.
Core Web Vitals wins.
Built-in image, font, and script optimisation — the kind of PageSpeed gains that used to take a specialist weeks to hand-tune, on by default.
One framework, whole product.
Static marketing pages, dynamic dashboards, and API routes in a single codebase — deployed as one unit, maintained by one team.
Scales from site to app.
Start with a marketing site, grow into a full application on the same foundation — no rebuild when the product outgrows the brochure.
What's Included in a Next.js Build
A typical Next.js engagement covers:
Prefer an embedded hire? You can hire a dedicated React/Next.js developer to own the build long-term.
Modern Next.js — App Router & Server Components
We build on modern Next.js — the App Router, React Server Components, and streaming — not the patterns from three major versions ago. That means less JavaScript shipped to the browser, faster pages, and an architecture that's current rather than something your next developer has to relearn.
“React is bad for SEO” is true of plain client-side React — and simply not true of a Next.js app built properly, which is why we don't treat Next.js as optional for anything meant to rank. This very site runs on it.
Ideal For
“Codified took nine years of our work and built a website that finally does it justice. From first call to launch in two weeks — and clients now mention the website before we've even pitched.”
Next.js DevelopmentWe've Actually Shipped
Live projects, real clients, and the full story behind each build — the problem, the decisions, and what changed afterwards.
How We Deliver — From First Call to Launch (and After)
No black box. Here's exactly what happens once you bring us in:
Discovery & scoping
A real conversation about the problem, the users, and the constraints — not a sales call. We leave it knowing exactly what needs building and why.
Fixed proposal & quote
You get a plain-English scope document, a timeline, and a fixed price. What's included, what's excluded, and what happens if scope changes — all in writing before any money moves.
Design & architecture
Wireframes, UI, and the technical architecture — database schema, API design, hosting — agreed up front so there are no expensive surprises mid-build.
Build in sprints
Development happens in short, reviewable cycles with a shared board. You see working software early and often, not a single black-box handoff at the end.
QA & testing
Every feature is tested — automated tests plus manual QA on real devices — before it's marked done. Nothing ships on a “works on my machine”.
Launch & handoff
Deployment, performance checks, and a walkthrough. You get the source code, the hosting, and the documentation — full ownership, zero lock-in.
Support & iteration
We stay on for bug fixes, monitoring, and new features on a retainer or ad-hoc basis — whichever fits how your product will actually grow.
How Much Does Next.js Development Cost?
Next.js development cost in the UK depends on scope. For reference:
| Option | Typical range |
|---|---|
| UK agency — Next.js site | £8,000 – £30,000 |
| UK agency — Next.js web app | £25,000 – £90,000+ |
| Freelance (variable quality) | £4,000 – £25,000 |
| Next.js build via Codified Studio | from $1,500 |
The cheapest quote on paper isn't always the cheapest in practice — a low day rate that needs heavy management, or a build that needs redoing, costs more than a fixed scope delivered right the first time. With Codified Studio, pricing is transparent from the first quote: no hidden onboarding fees, no surprise scope creep, and full code ownership at the end. See the work we've delivered or tell us what you're building.
Get a Tailored QuoteFrequently Asked Questions
Plain React renders in the browser, which hurts SEO and first-load speed. Next.js renders pages on the server or pre-builds them, so search engines and users get full content instantly. It also gives you routing, image optimisation, and API routes out of the box. For anything client-facing that needs to rank or load fast, Next.js is the upgrade — we use it by default.
Yes — it's common work, usually driven by SEO or performance problems with a client-rendered app. We review the current codebase, plan the migration to preserve URLs and rankings, and move it onto Next.js incrementally where possible rather than as a risky big-bang rewrite.
Very — that's a big reason to use it. Server-side rendering and static generation mean Google sees complete pages, and the built-in performance optimisations help Core Web Vitals, which are a ranking factor. We pair the framework with proper metadata, structured data, and clean URLs for the full picture.
Projects are priced in USD and invoiced via Payoneer or Elevate Pay — no international wire fees, no currency surprises. Fixed-price projects run 50% deposit to start, 50% on delivery, against a plain-English scope document agreed before any money changes hands.
100%. Source code, assets, hosting credentials, and domains are all transferred to you at handoff, with documentation. You're never locked into us for maintenance — everything is yours.
The parts that decide whether it performs: rendering strategy per route (static, server or client), image and font optimisation, caching and revalidation, structured data, and a Core Web Vitals budget held on real mobile hardware rather than a desktop lab score. As a Next.js development agency we treat those as part of the build, not an SEO retrofit — that ordering is most of why Next.js sites rank at all.
Related Services
Would a dedicated developer suit you better?
A fixed-scope project works best when you know what you need built. If the work is ongoing, or you already have a team that just needs more capacity, embedding one of our developers full-time is usually the cheaper route.
Ready to start your next.js development project?
Tell us what you're building and we'll come back with a scoped recommendation and a fixed quote — not a generic sales call.