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80% of website projects that fail do so because of poor preparation (Source: Standish Group). The code is fine — the brief is wrong. A well-prepared project saves weeks of revisions, thousands in wasted budget, and delivers a site that actually generates business.
In this guide, we cover the full project preparation process — from defining objectives and audience to gathering content, choosing an agency, setting budgets, writing effective briefs, and avoiding the most common traps.
The Web Project Preparation Checklist
| Step | What to Prepare | Time | Why It Matters |
|---|---|---|---|
| 1. Define objectives | What should the site DO? | 1–2h | Everything flows from this |
| 2. Identify audience | Who are your ideal clients? | 1h | Determines design and messaging |
| 3. Gather content | Texts, photos, testimonials | 3–5h | Content delays = #1 bottleneck |
| 4. Study competitors | Top 3–5 competitor sites | 1–2h | Know what works in your industry |
| 5. Define structure | Pages needed, navigation | 1h | Prevents scope creep |
| 6. Set budget | Realistic range | 30min | Appropriate solutions |
| 7. Choose timeline | Launch deadline, milestones | 15min | Realistic expectations |
Step 1: Define Clear Objectives
The most critical step. What should your website DO? Not what it should look like — what business outcome it should produce.
| Objective | Measurable Goal | Features Needed |
|---|---|---|
| Generate leads | X contact forms/month | Contact form, CTA, phone |
| Sell online | X orders/month | E-commerce, cart, payment |
| Build credibility | Reduced sales cycle | Portfolio, testimonials |
| Book appointments | X bookings/month | Online scheduling |
Step 2: Know Your Audience
Design for your customers, not yourself. Answer these:
- Who are they? — Age, profession, location, income
- What problem do they have? — The pain your service solves
- How do they search? — Google, social, word of mouth
- What convinces them? — Testimonials, portfolio, certifications, prices
- What's their journey? — Research → Compare → Decide → Contact
The Brief That Gets Results
- What's your business and who are your clients?
- What action should visitors take on your site?
- What are 3 competitor sites you like (and why)?
- What content do you already have (texts, photos)?
- How many pages do you need?
- What's your realistic budget?
- When do you need the site live?
Content Preparation
Content delays are the #1 cause of project delays. Prepare these before the project starts:
| Content Type | Minimum | Ideal | Priority |
|---|---|---|---|
| Professional photos | 10 photos | 20-30 photos | Critical |
| Service descriptions | One paragraph each | Detailed with benefits | Critical |
| Client testimonials | 3 testimonials | 5-10 with photos | High |
| Logo (high resolution) | PNG or SVG | SVG + brand guide | Critical |
| Unique selling points | 3 differentiators | 5 with proof | High |
| Contact information | Phone + email | Phone, email, address, hours, social | Critical |
Choosing a Web Agency
| Green Flag | Red Flag |
|---|---|
| Asks about objectives first | Jumps to design without understanding goals |
| Recent portfolio with measurable results | No portfolio or outdated examples |
| Their own site is fast and polished | Their site scores below 50 on PageSpeed |
| Clear pricing, no hidden costs | Vague pricing, surprise add-ons |
| Includes SEO, copywriting, mobile optimization | These are expensive extras |
| Ongoing support and training | Disappears after launch |
Budget Expectations
| Project Type | Budget at Agence Zen | Timeline | Pages |
|---|---|---|---|
| Showcase site (SMB) | €3,200 (Essentiel) | 3–4 weeks | Up to 6 |
| Pro site + blog | €6,400 (Signature) | 5–7 weeks | Up to 15 |
| E-commerce | From €11,900 (Sur-mesure) | 8–12 weeks | Up to 25 |
| Customer area / booking with payment | From €11,900 (Sur-mesure) | 8–12 weeks | Up to 25 |
Net prices — VAT not applicable (French micro-enterprise, art. 293 B CGI).
To refine this budget with your own options (extra pages, languages, online shop…), use our website cost calculator.
"The agency's preparation questionnaire made me think about things I'd never considered. The result was a site that truly represents my business and started generating calls within the first week." — Illustrative example
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Common Project Mistakes
- Starting with design instead of objectives — "Make it look like Apple" without defining what the site should achieve
- Not preparing content in advance — The #1 cause of delays. Agency waits while timeline slips
- Choosing on price alone — A €200 site that generates nothing costs more than a €2,000 site generating €50k/year
- Too many decision-makers — Committees kill projects. Designate one final decision-maker
- Skipping the brief — "I'll know what I want when I see it" leads to unlimited revisions
- Forgetting ongoing costs — Hosting, domain renewal, security, content updates
Avoiding Common Project Pitfalls
After managing hundreds of web projects, these are the predictable mistakes that derail timelines and budgets: scope creep without budget adjustment, skipping the mobile design review, not testing contact forms with real data, launching without Google Analytics configured, and forgetting 301 redirects from old URLs. Address each of these proactively in your project brief to avoid costly surprises.
Key Steps for a Successful Web Project
A successful web project begins long before the first pixel. The scoping and specification phase is the most profitable investment: every hour spent planning saves 10 in development and 100 in post-launch corrections. Clearly define: your target audience (user personas), your objectives (measurable KPIs), your total budget (development + content + marketing), realistic timeline, and technical constraints. Involve all stakeholders from the start (management, marketing, sales, technical) to avoid surprises. Choose your provider based on competence and methodology criteria, not just price — an experienced provider anticipates problems that a cheaper one will discover along the way, with guaranteed extra costs.
Frequently Asked Questions
How to define my website budget?
For an SMB, count €3,200 to €6,400 for a custom professional site at Agence Zen. Template sites cost less, but rarely include strategy, copywriting or SEO. Focus on ROI: "If this site generates 5 new clients/month at €500 each, what's the payback period?" With a Signature site, under 3 months.
How long to create a professional website?
3 to 4 weeks for an Essentiel site, 5 to 7 weeks for Signature and 8 to 12 weeks for a Sur-mesure project, copywriting included. The timeline also depends on how quickly you provide feedback and approvals.
Do I need to provide all content?
Not necessarily. Good agencies offer copywriting included. At Agence Zen, copywriting is included in every plan — all 6 pages written for Essentiel, SEO and GEO copywriting for every page from the Signature plan. We need your expertise, selling points, and raw material (photos, testimonials, pricing).
What if I don't know what I want?
That's normal! A good agency guides you through the process. Start with the 7 questions above. Look at competitor sites for inspiration. Share what you like and dislike.
Should I redesign or start from scratch?
If your current site is under 3 years old and has decent structure, a redesign may suffice. If it's older, not mobile-friendly, or built on outdated tech, starting fresh is usually faster and cheaper.
A well-prepared project takes 10 hours of your time and saves you months of back-and-forth. Invest in preparation, reap the rewards. The difference between a good site and a great site is rarely the developer — it's the brief.