The verdict in three sentences
For a 12-person firm, a WordPress theme at around 3,500 EUR excluding VAT (about 3,000 GBP) is enough if the site only needs to present the firm, its lawyers and its practice areas. As soon as you want online booking by lawyer and by matter type, plus secure document upload, budget 9,000 to 14,000 EUR (about 7,700 to 12,000 GBP, 2026 order of magnitude) for a custom build and 6 to 9 weeks of work. The deciding factor is simple: 35% of your enquiries arrive out of hours, and a site that does not capture them sends them to the firm down the road.
WordPress theme or custom build: what you are really buying
A London notary and conveyancing practice handles three remote flows: first contact (purchase, sale, probate, lasting powers of attorney, notarisation for overseas use), document collection (ID, proof of address, title deeds, searches) and matter tracking by clients. A theme handles the first flow well. The other two require development and serious thought about security.
| Criterion | WordPress theme | Custom site |
|---|---|---|
| Initial budget | About 3,500 EUR (3,000 GBP) | 9,000 to 14,000 EUR (7,700 to 12,000 GBP) |
| Timeline | 2 to 4 weeks | 6 to 9 weeks |
| Online booking | Generic plugin, calendar separate from the firm | Slots per lawyer and matter type, synced with the firm's diary |
| Document upload | Form with attachments sent by email | Encrypted area, document checklist per matter type, automatic purge |
| Hosting | Shared, sometimes outside the UK | UK data centre, about 25 EUR/month |
| Maintenance | 120 EUR/month (plugin updates) | 150 to 250 EUR/month (security, backups, small changes) |
| Main risk | Abandoned plugins, known vulnerabilities | Vendor lock-in if the code is undocumented |
The trap with a theme is document handling. A form that emails a copy of a passport duplicates it into three or four unencrypted inboxes, which you will have to justify in your record of processing. For 9,000 EUR, a realistic scope covers 10 to 15 pages, profiles of lawyers and staff, booking by matter type and a pre-qualification form. Above 12,000 EUR, you add a client area with document upload and matter milestones.
Constraints specific to the profession
The SRA Transparency Rules require firms offering residential conveyancing and probate to publish price and service information, and to display the SRA digital badge. Notaries regulated by the Faculty Office must show their regulatory status clearly. Under UK GDPR, the documents collected concern identity, family situation and assets: they justify encryption at rest, an access log, UK hosting and a written retention period. Anti-money laundering ID checks must also fit into the flow without copies circulating by email.
The real cost shows over three years, not on the build invoice.
| Item over 3 years | WordPress theme | Custom (11,000 EUR) |
|---|---|---|
| Build | 3,500 EUR | 11,000 EUR |
| Third-party booking tool | 40 EUR/month, so 1,440 EUR | Included in the build |
| UK hosting | 25 EUR/month, so 900 EUR | 25 EUR/month, so 900 EUR |
| Maintenance | 120 EUR/month, so 4,320 EUR | 180 EUR/month, so 6,480 EUR |
| Partial rework around month 18 | About 2,000 EUR | Not needed if the code is documented |
| Total over 3 years | 12,160 EUR (about 10,500 GBP) | 18,380 EUR (about 15,800 GBP) |
The real gap drops to 6,220 EUR over three years, roughly 173 EUR per month. That is the figure to compare with saved reception time and out-of-hours matters captured.
Typical schedule and decision points
Over 6 to 9 weeks, the usual split is: 1 to 2 weeks of scoping (booking reasons, duration per matter type, document checklist per file), 2 weeks of mock-ups approved by the partners, 3 to 4 weeks of development and 1 week of testing with two or three pilot clients. Partners must settle three points during scoping: who approves the slots opened online, how many days documents stay on the site before transfer to the case management system, and which enquiries trigger a human callback within 24 hours.
Mini case study
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Helen Carter, partner at a 12-person notary and conveyancing firm in Islington, receives about 240 appointment requests a month. 35% arrive in the evening or at weekends, so 84 requests, some of which are never called back. With online booking, the firm expects 50% of bookings to go through the site: 120 calls avoided at 6 minutes each, or 12 hours of reception time per month. At a loaded cost of 32 EUR per hour (about 28 GBP), that is 384 EUR a month, or 4,608 EUR a year. The extra cost of the custom build (about 2,073 EUR a year over three years) is covered twice by this gain alone, before counting the purchase or probate matters captured out of hours. This is a hypothetical projection to recalculate with your own volumes.
FAQ
How much does a notary or conveyancing firm website cost in London in 2026?
Budget about 3,500 EUR (3,000 GBP) for a brochure site on a WordPress theme and 9,000 to 14,000 EUR (7,700 to 12,000 GBP) for a custom site with booking and document upload. Add around 25 EUR/month for UK hosting and 120 to 250 EUR/month for maintenance.
Is online booking compatible with professional rules?
Yes, it is an organisational tool, not solicitation. Show booking reasons and an indicative duration of 30 to 60 minutes, and keep the SRA price and service information up to date on the same site.
Can we receive ID documents through the website?
Yes, provided you use an encrypted area hosted in the UK, with an access log and automatic purge, for example 90 days after transfer to your case management system. This module usually accounts for 2,000 to 3,500 EUR of the budget.
Should the site connect to our case management software?
Rarely in the first version: a structured export or standardised email is enough to start. An API connection often costs an extra 3,000 to 6,000 EUR and depends on what the vendor allows.
How long before go-live?
From 6 to 9 weeks for a custom site, including 1 week of testing. The factor that most often extends the project is partner sign-off on content and booking reasons.
Let's scope your project. Tell us how many lawyers you have, which appointment types to open online and your indicative budget, and we will price a precise scope with a 6 to 9 week schedule. 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.
