London web app development — built to GDPR and UK market standards.
London is Europe's largest startup hub. The UK market has specific requirements: GDPR, FCA for fintech, NHS compliance for healthtech. RCB Software builds London web apps that meet UK compliance standards.
London founder or operator who needs a web application built to UK and EU compliance standards
Building for the London market requires specific compliance knowledge that many US-focused developers lack.
London/UK web app requirements:
GDPR: Not just a checkbox. Data at rest and in transit encrypted. Explicit consent flows. Right to erasure implemented in the data model. Privacy by design, not privacy by retrofit.
FCA fintech: Open Banking API integrations. PSD2 compliance. AML/KYC flows. Financial services regulatory requirements.
NHS healthtech: Data Security and Protection Toolkit. Sharing with NHS systems. Patient data handling regulations.
UK-specific integrations:
- Open Banking (Plaid UK, TrueLayer)
- GOV.UK payment service
- Companies House API
- Royal Mail PAF for address validation
Web application built in 8-12 weeks — GDPR compliant, UK market ready, fixed scope and price
Fintech applications
with FCA considerations
SaaS products
with GDPR-compliant data handling
Healthcare applications
with NHS integration capability
B2B enterprise tools
for London's financial district
Consumer applications
for the UK market
One honest number to start.
Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.
Web application built in 8-12 weeks — GDPR compliant, UK market ready, fixed scope and price
Three steps, every time.
The same repeatable engagement on every project. No surprises, no mystery, no billable ambiguity.
Brief & discovery.
We send you questions, then get on a call. Output: a written scope with every step, feature, and integration listed.
Build & ship.
Fixed schedule, weekly reviews. No scope creep unless you change the scope — and if you do, we reprice it transparently.
Warranty & retainer.
30-day warranty on every launch. Most clients stay on a monthly retainer for ongoing features and maintenance.
Why Fixed-Price Matters Here
London projects with compliance requirements have defined scope. Fixed-price includes the compliance work.
Questions, answered.
GDPR compliance is architectured from day one: data residency in EU/UK (Supabase EU region or AWS eu-west-2), encrypted PII at rest, consent management built into user registration flows, and a data deletion endpoint in the user settings.
Tell Ryel about your project.
Describe what you’re building and what outcome you need. You’ll have a written, fixed-price scope within the week.