Wren UK: fintech website design for a London-led business bank

Wren UK is the British edition of our fictional business-banking platform, with current accounts, cards, treasury and bill pay built for UK limited companies. It shares every template with the US edition, but reads as a London firm: pounds and FSCS protection, sort codes and postcodes, the FCA and HMRC, and a palette of moss, paper and brass.

Project facts

• Client: Wren Ltd, registered in England & Wales (fictional)
• Sector: Business banking and financial technology
• Markets: London and Edinburgh studios, serving UK companies nationwide
• Services: Market localisation · Copywriting · Brand adaptation · Fintech website design · Accessibility (WCAG 2.2 AA) · SEO foundations
• Templates: 10 page templates shared with every Wren edition
• Stack: Hand-built HTML, CSS and vanilla JavaScript; one strings file and one theme file per market

The brief

A UK fintech site that never reads as American

The biggest risk for a UK edition is inheriting the US one: dollars, FDIC insurance, wire transfers, ZIP codes. Wren UK keeps the calm, premium tone but replaces every product term, price, regulator and habit with a British one. Founders search for a business current account, quote runway in pounds, and expect FSCS protection and a sort code. The site explains all three in plain English.

Designing for United Kingdom

What actually changed between the US and this edition

• Story - US edition: US business-banking platform for founders · United Kingdom: UK business bank for limited companies, LLPs and plcs
• Hero balance - US edition: $2,481,906.42 · United Kingdom: £2,481,906.42
• Product terms - US edition: Checking, savings, wire, T-bills, FDIC · United Kingdom: Current account, savings account, bank transfer, gilts, FSCS protection
• Coverage - US edition: FDIC insurance up to $250,000 · United Kingdom: Up to £4M through a partner-bank sweep network, pass-through FSCS protection
• Legal - US edition: SEC, IRS, state privacy rights · United Kingdom: FCA, HMRC, UK GDPR and DPA 2018, ICO
• Company details - US edition: Delaware incorporation, EIN · United Kingdom: Registered in England & Wales, company number, VAT number, registered office in London
• Places - US edition: San Francisco, New York, Silicon Valley · United Kingdom: London, Edinburgh, Tech City, the City, Thames Valley
• Look - US edition: Deep spruce, warm linen, brass; Fraunces + Hanken Grotesk · United Kingdom: Ink, moss, sage, paper and sand; Instrument Sans + Inter

Brand adaptation

The same Wren, with a local accent

Moss green carries the interface and ink anchors the type; a deep brass red brings warmth to accents and italics, with a lighter brass on dark panels so every pairing passes WCAG AA. Instrument Sans gives headlines a measured, editorial tone; Inter keeps forms and navigation plain. The wordmark keeps the Business Banking descriptor.

Homepage and key journeys

The hero opens on a live balance card with a growth chart and real-looking transactions, over a London skyline at dusk. The headline reads One quiet place for every pound you move. Proof points are restated for the UK (£2.1bn in completed transactions, 900 people across 14 time zones, studios in London and Edinburgh), and the product cards cover current accounts, cards, treasury and bill pay. The most distinctive flow is the startup runway calculator: type cash, monthly expenses and revenue in pounds and it shows months of runway, net monthly burn and the date the cash runs out, with a colour-graded meter and plain-English advice.

Compliance, accessibility and trust

• Privacy notice under the UK GDPR and Data Protection Act 2018, naming Wren Ltd (registered in England & Wales) as controller, with the route to the Information Commissioner's Office.
• Cookie consent under PECR: opt-in, with Reject all as prominent as Accept all.
• Footer with a UK company line: © 2026 Wren Ltd. Registered in England & Wales, company number and VAT number (demo), registered office in London.
• Passes automated WCAG 2.2 AA checks on every page at 360, 390, 768 and 1440 px: no contrast failures, no unreachable controls, no horizontal scrolling.
• A language switcher built from hreflang sits in the header on desktop and in the footer on phones.

One system, twelve markets

Every visible string lives in one file per market, and every colour and typeface in one theme file. This edition needed no new templates or components: a strings file, a theme, regional photography and local legal content made it a different brand experience. For a fintech company with international plans, a new market becomes a content project rather than a rebuild.

Deliverables

• Market profile: language, formats, legal and seasonality
• Full localised copy across 10 templates, header, footer and forms
• Brand adaptation: palette, type pairing and logo descriptor
• 10 regional photographs (Pexels, credited in credits.json)
• Local legal content
• Accessibility pass (WCAG 2.2 AA, automated) and QA at four screen widths
• Portfolio media: stills, full-page captures, scroll video, OG image, brand board