Web application development, engineered to scale.

We build custom web applications, customer portals and enterprise platforms that are secure, fast and designed around the way your users actually work, then keep them running as you grow.

Starting at £8,800 Based on our instant-quote algorithm for a web app with user accounts, one user, flexible timeline. Get your exact range

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In short

Web application development is building software that runs in the browser, such as portals, dashboards and SaaS products. LOLCorp builds secure, scalable custom web applications to a fixed scope and price, with full code ownership.

01 Discover

We define users, workflows, data and integrations, and agree a written scope.

Roles, permissions and workflows shaped by real usage, not generic templates.

02 Design

Prototype the interface and architecture before heavy engineering.

Authentication, authorisation, encryption, audit logging and safe handling of personal data.

03 Build

Short sprints with demos, so you steer as we go.

Architecture and infrastructure chosen so performance holds as users and data grow.

04 Launch

Load testing, security review, monitoring and a calm go-live.

Clean APIs and connectors for the systems you already rely on.

Web application development company in the UK

We are a web application development company UK organisations hire for custom web application development: customer portals, booking systems, internal platforms and SaaS. For larger organisations we provide enterprise web application development with single sign-on, audit trails and role-based access, and for growing firms business web application development that replaces manual processes.

Our API development and integration service connects your web application to the tools you already use.

What we mean by custom web application development

A web application is software people use in the browser to get work done: a customer portal, a booking system, an operations dashboard, a marketplace or a full SaaS product. Custom web application development means building it around your workflow, rules and data, rather than adapting someone else’s product.

We build business web applications and enterprise web applications with the controls larger organisations expect: single sign-on, granular permissions, audit trails, and data stored and processed under UK GDPR. We also build dashboards that turn scattered data into live reporting, and take a product mindset to software product development and product engineering, from first release to a roadmap.

If you are launching a new product, start with our MVP development or SaaS development service. For connecting systems, see API development and integration. Our complete guide to custom software development explains the whole process.

Guides

Read before you decide.

Pillar guide · 14 min

Custom software development: the complete UK guide

Custom software development is designing and building software around how one organisation works, rather than adapting a generic product.…

Read guide

Guide · 9 min

How to build a SaaS product: from idea to first customers

To build a SaaS product, validate the problem, scope a minimum viable product around one core job, design for multiple customers from day…

Read guide

Guide · 9 min

Software security basics for UK businesses

Secure software starts with access control, encryption, tested backups, prompt patching and secure development practice, aligned to the…

Read guide

Why it works

Why teams choose LOLCorp for Web Application Development

Designed around users

Roles, permissions and workflows shaped by real usage, not generic templates.

Secure by default

Authentication, authorisation, encryption, audit logging and safe handling of personal data.

Scales cleanly

Architecture and infrastructure chosen so performance holds as users and data grow.

Ready to integrate

Clean APIs and connectors for the systems you already rely on.

Deliverables

Everything included, nothing hidden.

  • Discovery, specification and architecture
  • UX/UI design and clickable prototype
  • Production build with automated tests and CI/CD
  • Cloud deployment, monitoring and documentation
  • Handover, training and optional support

Our approach

A clear path to launch.

  1. 1

    Discover

    We define users, workflows, data and integrations, and agree a written scope.

  2. 2

    Design

    Prototype the interface and architecture before heavy engineering.

  3. 3

    Build

    Short sprints with demos, so you steer as we go.

  4. 4

    Launch

    Load testing, security review, monitoring and a calm go-live.

Instant quote generator

Get a realistic price in 60 seconds.

Tell us what you are building, choose the pages and features you need, and get a realistic ballpark quote, instantly. No sales calls. No hidden fees. Your price is revealed at the end.

  1. 1Project
  2. 2Features
  3. 3Your details
  4. 4Your quote

What are you building?

Project type

Websites

Software & apps

Choose a project type above and we will ask the right questions.

Where should we send your quote?

We email you a copy with your quote number, valid for 30 days. No obligation, no pressure.

Analysing your project requirements…

  • No obligation, no pressure
  • 100% free automated quote
  • Your price is revealed at the end

Estimates are indicative, not a binding offer. Fixed price confirmed after discovery.

FAQ

Web Application Development: common questions

How much does web application development cost?

It depends on features, users and integrations. The instant quote gives an indicative range, and we confirm a fixed price after discovery.

How long does it take to build a web application?

A focused first release usually takes 4–8 weeks. Larger platforms are phased.

Which technologies do you use?

We choose the stack for your needs, typically modern TypeScript, Node, React and cloud-native infrastructure, with maintainability as the priority.

Can you build an enterprise web application?

Yes, including role-based access, single sign-on, audit logging and integrations with existing systems.

Do you provide support after launch?

Yes. We offer maintenance and management plans, or hand over fully if you prefer to run it in-house.

Related

Explore more services

SaaS Development

From MVP to multi-tenant platform: subscriptions, onboarding, analytics and scale built in from day one.

Starting at£21,000Explore

MVP Development

Launch a validated first version of your product in weeks, then iterate with real users.

Starting at£8,800Explore

API Development & Integration

Custom APIs, third-party integrations and workflow automation that connect the tools you already use.

Starting at£6,100Explore

Ready to build something that moves the needle?

Tell us what you need. Get a fixed-price proposal, not a sales funnel.

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