The verdict in three sentences
The choice between a partial redesign (4,500 to 10,000 EUR) and a full rebuild (13,000 to 33,000 EUR) depends first on your CMS's technical debt: an obsolete foundation makes any redesign a band-aid. Migration cost (1,700 to 4,400 EUR) and timeline (6 weeks versus 12) weigh heavily in the decision. The simple rule: if the break-even exceeds 24 months or the CMS is no longer maintained, rebuild; otherwise, redesign and preserve your URLs so you do not lose your SEO.
Partial redesign vs rebuild: the comparison
A partial redesign keeps the technical foundation and reworks design and content. A rebuild starts from scratch: new CMS, new architecture, new code. Here is how the two compare in 2026.
| Criterion | Partial redesign | Full rebuild |
|---|---|---|
| Upfront cost | 4,500 - 10,000 EUR | 13,000 - 33,000 EUR |
| Timeline | 6 weeks | 12 weeks |
| Residual technical debt | High | None |
| Migration cost | 0 - 1,100 EUR | 1,700 - 4,400 EUR |
| SEO risk | Low (URLs kept) | Medium (manageable) |
| Estimated lifespan | 2-3 years | 5-6 years |
The classic trap: redesigning a site on an unmaintained CMS. You pay 7,700 EUR to defer an inevitable rebuild by 18 months, which will then cost full price. Auditing technical debt BEFORE choosing avoids this waste.
The break-even calculation
Comparing both options over 4 years, total cost of ownership included, often reveals that rebuilding is cheaper in the medium term. 2026 order-of-magnitude example.
| Line over 4 years | Partial redesign | Full rebuild |
|---|---|---|
| Upfront | 7,200 EUR | 22,000 EUR |
| Redesign at 30 months (forced) | 13,000 EUR | 0 EUR |
| Cumulative maintenance | 10,600 EUR | 13,000 EUR |
| Migration | 550 EUR | 3,300 EUR |
| 4-year total | 31,350 EUR | 38,300 EUR |
| Lifespan covered | 4 years (2 projects) | 4 years (1 project) |
If your horizon is under 24 months (resale, pivot), the redesign wins. Beyond that, the rebuild usually prevails: one project, technical debt reset, fewer interruptions.
Mini case study
Thomas, marketing director of a 40-employee B2B services SME in Amsterdam, is hesitating. His site runs on a CMS whose support ends in late 2026. A partial redesign at 7,700 EUR would last 20 months, after which a rebuild at 21,000 EUR becomes mandatory, i.e. 28,700 EUR over 3 years. Rebuilding now at 21,000 EUR with preserved URLs costs 7,700 EUR less and avoids a double interruption. He chooses the rebuild and amortises over 5 years.
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FAQ
Redesign or rebuild: how do I decide?
Audit technical debt first. If the CMS is no longer maintained or break-even exceeds 24 months, rebuild. Otherwise a partial redesign at 4,500-10,000 EUR is enough.
How much does content migration cost?
Between 1,700 and 4,400 EUR in 2026 depending on page volume and complexity. Price it in the quote from the start; it is often forgotten.
Does a rebuild lose SEO?
Not if URLs are preserved and 301 redirects are set correctly. A well-managed migration protects earned rankings.
What timeline for each option?
Around 6 weeks for a partial redesign, 12 weeks for a full rebuild in 2026, excluding content sign-off.
Can a rebuild be phased?
Yes, in batches (homepage, then sections, then blog). This smooths cash flow but lengthens the overall timeline and complicates SEO.
Let's scope your project. Send us your current site URL and your business horizon and we will audit the technical debt and settle redesign versus rebuild. 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.
