The verdict in three sentences
For a wealth management or financial planning firm in London, a themed template at around 4,000 GBP gets you online but rarely books qualified meetings. A premium bespoke site between 15,000 and 35,000 GBP, with a tax calculator, expert content and integrated booking, pays for itself with 2 to 3 new clients a year. The real risk is not the build cost, it is a non-compliant financial promotion sitting on your home page.
What a wealth management website really costs in London in 2026
Quote gaps between London agencies come down to three items: design level, interactive tools and regulatory work. These are 2026 market estimates.
| Option | Budget (excl. VAT) | Timeline | Best for |
|---|---|---|---|
| Customised WordPress theme | 4,000 to 6,000 GBP | 3 to 4 weeks | Sole adviser starting out |
| Standard bespoke site (10-15 pages) | 9,000 to 15,000 GBP | 6 to 8 weeks | Firm with 2 to 5 advisers |
| Premium bespoke site + expert content | 15,000 to 35,000 GBP | 8 to 12 weeks | Established firm, HNW clients |
| Tax calculator (IHT, pension, ISA) | 3,000 to 6,000 GBP | 2 to 3 weeks | Any firm targeting conversion |
| Synced booking (Outlook/Google) | 700 to 1,800 GBP | 1 week | All profiles |
| Secure client portal (documents, reporting) | 8,000 to 20,000 GBP | 6 to 10 weeks | Family offices |
| Maintenance and hosting | 180 to 450 GBP/month | Recurring | All profiles |
A wealth management website sells trust. Premium design, real team photography and pages per expertise (inheritance, retirement, property, business owners) do more for conversion than any visual effect.
Compliance: the disclosures that move the quote
FCA-authorised firms must treat most website pages as financial promotions and apply Consumer Duty principles. Drafting and sign-off typically add 1,000 to 2,500 GBP to a serious quote.
| Requirement | Where to show it | Quote impact |
|---|---|---|
| FCA firm reference number and status | Footer + legal page | Low, 1 to 2 h |
| Financial promotion approval trail | Internal process + CMS | 400 to 800 GBP |
| Risk warnings on past performance | Calculator and articles | 400 to 900 GBP |
| Complaints procedure and Financial Ombudsman | Dedicated page | 200 to 500 GBP |
| Consumer Duty: clear fees and outcomes | Fees page | 500 to 1,000 GBP |
| UK GDPR: cookie consent, retention | Banner + policy | 500 to 1,200 GBP |
The tax calculator is the most sensitive item: it must state its assumptions (2026/27 allowances, household situation) and say it is not personal advice. Done well, it becomes the top lead generator, converting 3 to 6 % of visitors versus under 1 % for a plain contact page.
Mini case study
Oliver, managing partner of a four-adviser firm in Mayfair, weighs a 5,000 GBP template against a 21,000 GBP premium build (IHT and pension calculators included). His average first-year fee per client is 3,500 GBP, and clients stay around 8 years.
- Investment gap: 21,000 − 5,000 = 16,000 GBP
- Premium maintenance: 350 GBP/month, or 4,200 GBP a year
- The calculators generate 10 enquiries a month, 2 becoming clients per quarter: 8 new clients a year
- First-year fees: 8 × 3,500 = 28,000 GBP
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
The gap is recovered in under 7 months, before counting lifetime client value.
FAQ
How much does a wealth management website cost in London in 2026?
Allow 4,000 to 6,000 GBP for a customised theme and 15,000 to 35,000 GBP for a premium bespoke build. A tax calculator adds 3,000 to 6,000 GBP.
Does a wealth management site need a tax calculator?
It is the strongest conversion lever in the sector, turning 3 to 6 % of visitors into enquiries. It must show its assumptions and a clear regulatory warning.
Which regulatory disclosures are mandatory?
FCA reference number, regulated status, complaints procedure and Financial Ombudsman details, plus fair and clear financial promotions. Drafting them costs 1,000 to 2,500 GBP in a full quote.
What does maintenance cost?
Between 180 and 450 GBP a month depending on service level: security updates, backups and the yearly update of tax allowances in the calculator.
How long does a premium build take?
Plan for 8 to 12 weeks, including 2 to 3 weeks of compliance sign-off on content.
Let's scope your project. Send us your scope (pages, calculator, client portal) and we will price a premium site between 15,000 and 35,000 GBP, delivered in 8 to 12 weeks. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
