The verdict in three sentences
For a 12-person architecture studio in Rotterdam, a customised WordPress theme at around EUR 4,000 works as long as the portfolio stays under 20 projects and brand image is not a sales argument. Once you publish 40 to 60 projects and pitch for competitions or institutional clients, a bespoke site between EUR 10,000 and 18,000 with a filterable portfolio becomes the rational investment. Plan for 6 to 9 weeks of work, EU hosting around EUR 25/month and maintenance of EUR 100 to 200/month.
WordPress theme or bespoke: what you are really buying
A premium theme is attractive on price, but it imposes its own grid. For a studio whose craft is composition and light, a generic site sends a weak signal to developers and municipalities. A bespoke build lets you design the portfolio like a monograph: filters by typology (housing, offices, public buildings, renovation), year, floor area and status (delivered, on site, competition).
| Criterion | Premium WordPress theme | Bespoke site |
|---|---|---|
| Initial budget | EUR 4,000 | EUR 10,000 to 18,000 |
| Filterable portfolio | Basic (categories) | Multi-criteria (typology, year, area, status) |
| Comfortable number of projects | Under 20 | 60 and more |
| Average mobile Lighthouse score | 55 to 70 | 90 and above |
| Observed mobile LCP | 3.5 to 5 s | Under 2.5 s |
| Time to launch | 2 to 3 weeks | 6 to 9 weeks |
| Lifespan before redesign | About 3 years | 5 to 6 years |
The price gap narrows once spread over time: EUR 4,000 over 3 years is about EUR 111 per month, EUR 14,000 over 6 years is about EUR 194 per month. The real difference is roughly EUR 80 per month for a tool that works on your image at every tender.
The hidden cost: images and performance
An architect's website is first and foremost an image website. With 60 projects of 8 to 15 visuals each, you publish 500 to 900 high-resolution photos. Without an optimisation pipeline, a project page weighs 15 to 25 MB and LCP exceeds 4 seconds on mobile, which hurts your search ranking and drives away busy visitors.
| Technical item | Without optimisation | With WebP/AVIF pipeline |
|---|---|---|
| Average project page weight | 18 MB | 2.5 to 3.5 MB |
| Full-screen photo weight | 2.5 MB (JPEG) | 250 to 400 KB (AVIF) |
| Mobile 4G LCP | 4.2 s | 1.8 to 2.3 s |
| Project page bounce rate | 60 to 70% | 35 to 45% |
| Setup cost | EUR 0 | EUR 900 to 1,600 (included in bespoke) |
| EU hosting (TransIP, Hetzner, Scaleway) | EUR 10/month | EUR 25/month with CDN |
The pipeline automatically generates several sizes (640, 1280, 1920, 2560 px) in AVIF and WebP, with lazy loading and blurred placeholders. Your team does not see any of it: they upload a JPEG, the site handles the rest.
Full 3-year budget
| Cost line | WordPress theme | Bespoke |
|---|---|---|
| Build | EUR 4,000 | EUR 14,000 |
| Loading 50 projects | EUR 1,800 (in-house or outsourced) | Included |
| EU hosting (36 months) | EUR 360 | EUR 900 |
| Maintenance (36 months) | EUR 3,600 (EUR 100/month) | EUR 4,680 (EUR 130/month) |
| Project sheet copywriting | EUR 1,400 | EUR 1,400 |
| 3-year total | EUR 11,160 | EUR 20,980 |
These are 2026 estimates observed for Dutch studios of 8 to 20 people, excluding 21% VAT. Maintenance at EUR 200/month corresponds to a plan with monthly content updates and performance reporting.
Mini case study
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Lotte, partner in a 12-person architecture studio in Rotterdam, runs EUR 2.6M in annual fees, 55% from public clients and 45% from private developers. Her current site, a 2019 theme, shows 22 projects with a 4.6 s LCP.
She chooses a bespoke site at EUR 14,500 with 52 filterable projects. Over one year, the site generates 9 qualified enquiries from private developers versus 3 before. A single design commission on an 18-unit housing scheme is worth around EUR 150,000 in fees. If one enquiry in six converts, the site pays for itself with the first signed contract, at a ratio of more than 10 to 1.
FAQ
How much does an architecture studio website cost in Rotterdam in 2026?
Expect about EUR 4,000 for a customised WordPress theme and EUR 10,000 to 18,000 for a bespoke site with a filterable portfolio. The upper range includes animations, a second language and loading 60 projects.
How long does the build take?
A bespoke site takes 6 to 9 weeks: 2 weeks of design, 3 to 4 weeks of development and 1 to 2 weeks of project loading. The timeline mostly depends on how quickly photos and texts are available.
Why host the site in the EU?
EU hosting at EUR 25/month reduces latency for Dutch and Belgian clients and simplifies GDPR compliance. With a CDN, server response time stays under 200 ms.
Do I need a maintenance plan?
Yes, between EUR 100 and 200/month depending on the service level. It covers security updates, daily backups and adding 2 to 4 projects per quarter.
Does the portfolio really help with competitions?
Juries and client advisers almost always check the website before shortlisting. A portfolio filterable by typology lets them verify your references in under 2 minutes.
Let's scope your project. Send us the number of projects to publish, your typologies and your timeline: we will price a bespoke site between EUR 10,000 and 18,000, delivered in 6 to 9 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.
