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Built to be handed over

Custom software & MVP development for UK businesses

Codexlava is an independent UK software consultancy, building custom software, MVPs and web applications for UK startups and growing businesses.

  • Custom software and e-commerce, from CRM integrations to online stores
  • Data analysis and visualisation that turns what you already hold into decisions
  • MVPs scoped to the one thing that needs proving, on architecture that survives v2
London, E6
Delivering across the UK
7 services
Discovery through to handover
Company 16654084
Registered in England & Wales
Wireframes and laptops on a desk during a planning session
Working with businesses
across the UK
About Codexlava

Software you can maintain without us

Codexlava is an independent UK software consultancy. We scope, design and build custom software, MVPs and web applications for startups and growing businesses across the UK — then hand over the documentation, so your own team can run it.

  • Prototype signed off before code
  • Documentation ships with the build
  • No supplier lock-in
  • One team, discovery to handover
Our services

Software, search and data solutions

Custom software, web applications, search and AI visibility, and data analysis for startups, SMEs, and healthcare organisations across the UK.

01 / 07

Software Solutions

The system your team works around instead of with. We replace the manual steps with something they will actually use.

  • Business Process Automation
  • Line-of-Business Applications
  • API & System Integrations
See details
02 / 07

MVP Development

A first version scoped to the one thing that needs proving — on architecture that survives the second version.

  • Rapid Prototyping
  • Scalable Architecture
  • Iterative Delivery
See details
03 / 07

Website & E-Commerce

Responsive, mobile-first sites and storefronts your content team can run without calling a developer.

  • WordPress
  • Shopify
  • Flask
  • Next.js
See details
04 / 07

SEO & AI Visibility

Make the site reachable, readable and quotable — by Google and by AI assistants. Nobody can guarantee a position, and we do not.

  • Technical SEO
  • Answer Engine Optimisation
  • llms.txt
See details
05 / 07

Data Analysis

Start from the question you need answered, then build the dashboard that answers it — not another export nobody opens.

  • pandas
  • SciPy
  • Dash
  • Streamlit
See details
06 / 07

AI Integration

AI inside the software you already run: documents read into records, answers from your own data, enquiries triaged — with a person approving where it matters.

  • Document Extraction
  • Search Over Your Data
  • Workflow Automation
See details
07 / 07

Mobile Apps

iOS and Android from one React Native codebase, sharing the back end and business logic of your web application.

  • React Native
  • iOS & Android
  • Shared Back End
See details

The tools we build with

  • Python
  • JavaScript
  • TypeScript
  • Django
  • FastAPI
  • Flask
  • Next.js
  • React
  • React Native
  • PostgreSQL
  • MySQL
  • MongoDB
  • Redis
  • Celery
  • Docker
  • AWS
  • Azure
  • WordPress
  • Shopify
  • Stripe
  • HubSpot
  • pandas
  • NumPy
  • SciPy
  • Dash
  • Streamlit
  • Claude Code
  • Codex
  • Anthropic API
  • OpenAI API
  • GA4
  • Meta Ads
  • LinkedIn Ads
  • Google Ads
  • Sentry
Who we build for

Industries we work in

The constraints differ more than the code does. A healthcare system answers to different rules than a storefront, and the scoping conversation starts there.

Talk about your sector
  • Startups

    A first version scoped to the one thing that needs proving, on architecture that survives the second version.

  • E-commerce

    Responsive, mobile-first storefronts and CMS builds the content team can run without a developer.

  • Healthcare

    Systems handling sensitive records, where access control and an audit trail are part of the scope rather than an afterthought.

Work process

The same four stages, every build

You always know which stage you are in and what comes out of it.

01

Discovery & scope

We map what already exists: the systems you run, the data you hold, who needs access and what the constraints are. We use AI where it speeds the groundwork up, but the scope is read, questioned and agreed with you — never generated and handed over.

You approve the written scope before any design starts.

02

Design & prototype

Wireframes first, then a prototype you can click through and react to. This is the cheapest point at which to change your mind, so it is where we ask you to.

Nothing is built until you sign off the prototype. Changing a wireframe costs minutes; changing built software costs days.

03

Build

Delivered in increments you can see working, not one hand-off at the end. We use AI where it is genuinely faster, and every line is reviewed by the engineer who owns it. Nothing reaches you that a human has not read.

Working software on a staging URL throughout, not a status report.

04

Test, launch & hand over

Automated and manual testing, then deployment. The documentation ships with the build, so your own team can run it — and ongoing support is there if you would rather we did.

You accept the build before it goes live, and you own what you paid for.

FAQ

Frequently asked questions

Answers on our services, pricing, project process, and industry expertise.

What does Codexlava do?
Codexlava is a UK software development consultancy. Codexlava builds custom software, minimum viable products, web applications, mobile apps, e-commerce sites and data dashboards, adds AI features to the systems businesses already run, designs the interfaces that sit on top of them, and makes the result reachable by search engines and AI assistants.
Who does Codexlava build for?
Startups, SMEs and healthcare organisations across the United Kingdom - from a founder validating a first idea to an established team replacing a system it has outgrown.
Where is Codexlava based?
Codexlava is at 182-184 High Street North, East Ham, London E6 2JA. CODEXLAVA LTD is registered in England and Wales, company number 16654084, and works with clients across the United Kingdom.
How much does custom software development cost in the UK?
Across the UK market in 2026, agency rates sit at roughly £80-£140 per hour, depending on the agency and the region, and MVP builds are commonly quoted between £15,000 and £80,000 depending on scope. Those are market figures, not Codexlava's prices: Codexlava scopes every build individually and will tell you what a project depends on, roughly where it sits against those rates, and what we would need to know to quote it properly.
How long does it take to develop a website or software project?
Project timelines vary depending on scope and complexity. A simple website may take 2 to 4 weeks, while a larger custom software build or a multi-stage platform may take several months. We give you a clear timeline during the consultation phase so you know what to expect.
What does Codexlava's development process look like?
Every build follows the same four stages: discovery and scope, design and prototype, build, then test, launch and hand over. Prototypes are approved before production code is written, because changing a wireframe costs minutes and changing built software costs days. You always know which stage you are in and what comes out of it.
What industries do you work in?
Codexlava focuses on three: startups, e-commerce and healthcare. Our flexible approach means we deliver customised solutions for both small businesses and larger organisations, and the scoping conversation starts with the constraints of your sector rather than with the technology.
What happens after the software is delivered?
Codexlava hands over documentation with the build, so the work can be maintained by your own team rather than only by us, and provides ongoing support after deployment. Nothing is written in a way that locks you to one supplier.
Can you get our business mentioned by AI assistants like ChatGPT?
Codexlava can make a site reachable, readable and accurate for AI assistants - crawler access, pages that render without JavaScript, schema.org data, llms.txt and answers written to be quoted. Nobody, including Codexlava, can guarantee a position in an AI answer or a citation, because no assistant sells one. Anyone promising otherwise is describing something they cannot control.
Do you work with clients across the UK?
Yes. Codexlava is based at 182-184 High Street North, East Ham, London E6 2JA, and works with clients across the United Kingdom; most projects run remotely.
How do I get a quote from Codexlava?
Book a consultation, send the contact form, or reach us on +44 7493 639381 or at enquiries@codexlava.co.uk. The first consultation is free, and a short call is usually enough to work out the scope, the approach and roughly what it costs.

Tell us what you are building

One call, no obligation. We will tell you what the work involves, roughly what it costs, and whether we are the right people to do it.