The verdict in three sentences
For a 12-person architecture practice in London, a serious redesign costs 12,000 to 25,000 GBP in 2026, depending on the stack, the portfolio depth and where your agency is based. A headless Next.js site with a filterable portfolio is the sensible default once you show more than 25 to 30 projects, and a francophone nearshore agency delivers the same scope for roughly 40% less than a central London studio. Plan 8 to 10 weeks and set one measurable goal at kickoff: +30% consultation requests within 12 months.
What a redesign really costs in 2026
The line that moves the quote is not the design, it is the portfolio. Forty projects with 12 to 15 photos each means 500 to 600 images to crop, compress to AVIF and caption, plus structured project pages (typology, floor area, client, year, RIBA stage).
| Item | London agency (headless) | Francophone nearshore agency (headless) |
|---|---|---|
| Discovery, sitemap, content plan | 2,500 GBP | 1,300 GBP |
| UI design (12 to 15 screens) | 5,000 GBP | 3,000 GBP |
| Front-end and CMS development | 9,000 GBP | 5,200 GBP |
| Filterable portfolio, 40 projects | 4,000 GBP | 2,600 GBP |
| Content and image migration | 2,000 GBP | 1,300 GBP |
| Technical SEO and 301 redirects | 1,500 GBP | 1,000 GBP |
| QA and team training | 1,000 GBP | 700 GBP |
| Indicative total | 25,000 GBP | 15,100 GBP |
These are 2026 ballpark figures for mid-sized agencies, excluding VAT. A nearshore team works in your time zone give or take one hour, in English, with fixed-price milestones. A photo shoot of recent completed schemes adds 1,500 to 3,000 GBP wherever you hire.
WordPress or headless Next.js: the decision grid
Developers, public clients and planning consultants often check your site on a phone between meetings. A gallery that takes 4 seconds to load costs enquiries, so speed is a commercial criterion, not only a technical one.
| Criterion | Custom WordPress | Headless Next.js |
|---|---|---|
| Typical mobile PageSpeed score | 55 to 75 | 90 to 98 |
| 20-image gallery on 4G | about 3.5 s | about 1.2 s |
| Monthly maintenance | 100 to 160 GBP | 130 to 220 GBP |
| Plugin updates | monthly | almost none |
| Adding a new portfolio filter | 300 to 550 GBP | 350 to 700 GBP |
| Editorial autonomy | native | through a headless CMS (Sanity, Strapi) |
| Realistic lifespan | 4 to 5 years | 6 to 8 years |
The headless premium spreads over a longer lifespan: per year, the gap falls below 1,000 GBP. For a practice that enters competitions and lives on its image, WordPress rarely wins on that argument.
Typical 8 to 10 week schedule
| Week | Stage | Deliverable |
|---|---|---|
| 1 | Discovery and audit | Sitemap, list of 40 projects, redirect plan |
| 2 to 3 | Design | Home, portfolio, project page and studio mock-ups |
| 4 to 6 | Development | Staging site, configured CMS |
| 6 to 7 | Portfolio migration | Complete project pages, optimised images |
| 8 | QA and SEO | Mobile tests, schema markup, 301 redirects |
| 9 to 10 | Launch and monitoring | Search Console, form tracking |
The main delay risk sits with the practice itself: studio copy and sign-off on project pages. Name one partner as owner with 2 hours a week blocked out.
Mini case study
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Oliver, partner at a 12-person architecture practice in Clerkenwell, London, receives 6 qualified consultation requests a month through the website; 15% become commissions with an average fee of 30,000 GBP. With +30% requests, the site brings 1.8 extra requests a month, about 0.27 extra commissions a month or 3.2 a year, roughly 96,000 GBP in additional fees. On the cost side, the nearshore headless option is 15,100 GBP plus 12 x 180 GBP maintenance, 17,260 GBP in year one, almost 10,000 GBP less than the London quote for the same scope. One commission won through the site pays for the project.
FAQ
How much does a website redesign cost for an architecture practice in London in 2026?
Expect 12,000 to 16,000 GBP with a nearshore agency and 20,000 to 25,000 GBP with a central London studio for a headless site with a 40-project portfolio. A photo shoot, if needed, adds 1,500 to 3,000 GBP.
How long does the project take?
A realistic schedule is 8 to 10 weeks from discovery to launch. Portfolio migration alone takes 1 to 2 weeks.
Will we lose our Google rankings?
Not if a 301 redirect plan is drawn up in week 1 and tested before launch. A well-run project keeps 70 to 90% of organic traffic in the first month, then grows it thanks to speed.
What maintenance budget should we plan?
Allow 100 to 160 GBP a month for WordPress and 130 to 220 GBP for headless, including hosting, backups and small changes. Over 3 years, that is 3,600 to 7,900 GBP.
Is working with a nearshore agency risky?
The risk is managed with fixed-price milestones, a shared staging site and weekly calls. Payment is typically split 30% at kickoff, 40% at design sign-off and 30% at launch.
Let's scope your project. Send us the number of projects to showcase, your deadline and your budget range, and we will price both the WordPress and headless options line by line. 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.
