How Long Does It Really Take to Build a Website or Web App?
Planning a web project? Here's the honest timeline from someone who actually builds these things every day.
"How long will this take?"
It's the first question everyone asks when they want to build a website or web app. And it makes sense. You've got a business to run, and you need to know when you can actually start using this thing.
Quick Answer
Simple websites take 8-16 weeks. Web applications take 12-20 weeks minimum (3-5 months) for standard features. Complex enterprise systems take 20-40+ weeks (5-10+ months). Timeline depends on complexity, your responsiveness, and scope changes. Budget an extra 20-40% for unexpected delays.
The annoying answer is "it depends." But that's not helpful, so let me give you the real timeline based on hundreds of projects we've built here in Singapore.
Simple website: 4 to 8 weeks
This is your basic company website. A few pages about your business, some photos, contact form, maybe a blog. Nothing fancy, just professional and clean.
Week 1-2: We figure out what you actually need. What pages? What content? What's the goal? We design how it should look.
Week 3-5: We build it. Your designer makes it pretty, your developer makes it work.
Week 6-7: You review it, ask for changes (everyone always has changes), we fix them.
Week 8: We launch. Your site goes live.
That's if everything goes smoothly. Add 2-4 weeks if you're slow getting us content or if you keep changing your mind about the design.
Complex website: 8 to 16 weeks
This is when you need more than just a brochure site. Maybe you've got 50+ pages, custom animations, multiple languages, or integration with other tools.
The process is similar, it just takes longer because there's more to build and test.
Simple web application: 12 to 20 weeks (3-5 months)
Now we're talking about something interactive. Users can log in, save data, generate reports. Think of a member portal or a simple booking system.
Week 1-4: Planning. We map out every feature, design the user flow, plan the database.
Week 5-14: Building. This is where the magic happens. Frontend, backend, database, all the technical stuff.
Week 15-18: Testing. Breaking things, fixing them, making sure it actually works.
Week 19-20: Launch prep and going live.
This timeline assumes you're available for quick feedback. Every time we wait a week for your response, that's another week added to the project.
Complex web application: 20 to 40+ weeks (5-10+ months)
Big systems with lots of features. Custom dashboards, AI integration, complex automation, multiple user roles, integrations with many other systems.
We're talking 5 to 10+ months here. These projects are basically mini software companies being built just for you.
What slows projects down (the truth)
Let me be real with you. Most delays aren't because developers are slow. Here's what actually kills timelines:
You don't have your content ready
We can't build your website if you haven't written the text or taken the photos. Sounds obvious, but this delays half the projects out there.
Fix: Have your content ready before you even start looking for developers. Or hire a copywriter to help.
You keep changing your mind
It's totally normal to have new ideas. But every time you change something major, it adds time.
Changing the color scheme? No problem, 30 minutes.
Changing how the whole login system works? That's 2 weeks of rebuilding.
Fix: Think hard about what you really need before development starts. Changes are expensive and slow.
You're waiting for someone else
Maybe you need approval from your boss, or info from your accountant, or access to your current website. Every time the project waits for external people, time gets added.
Fix: Make sure everyone who needs to approve stuff knows the timeline. Get them to commit to responding within 2 business days.
Your developer is juggling too many projects
If you hired a freelancer who's working on 5 projects at once, yours won't get done quickly. Simple math.
Fix: Ask upfront how many projects they're working on and how much time they'll dedicate to yours each week.
How to make your project go faster
1. Be available
When your developer asks a question, answer within a day. Fast responses = fast project.
2. Have decisions made upfront
Who needs to approve designs? What's the final say? Figure this out before starting, not halfway through.
3. Trust your developer's advice
If they say "that feature will add 3 weeks," they're not trying to inflate the price. They've built this before and know how long it takes. Listen to them.
4. Start with MVP
MVP = Minimum Viable Product. Build the core features first, launch, then add the nice-to-haves later. This gets you up and running way faster.
Instead of waiting 6 months for the perfect system, you could have something working in 2 months and improve it as you go.
Real timeline from a recent project
Here's what actually happened with a project we just finished for a training company in Singapore:
What they wanted: A platform where members can register for courses, pay online, access course materials, track their progress.
Initial estimate: 12 weeks
What actually happened:
- Week 1-2: Planning went smoothly
- Week 3: Waited 5 days for them to confirm payment gateway choice
- Week 4-9: Development going well
- Week 10: They asked to add a feature we didn't plan for (certificate generation). We said this adds 2 weeks.
- Week 11-12: Built the new feature
- Week 13: Testing revealed issues with how certificates looked on mobile
- Week 14: Fixed mobile issues
- Week 15: They were traveling, couldn't review
- Week 16: Final review and tweaks
- Week 17: Launch!
Total: 17 weeks instead of 12. Why? 1 week waiting for payment decision, 2 weeks for added feature, 1 week while they traveled, 1 week fixing an issue we didn't catch early.
How much can you rush it?
You can speed things up by throwing more people at it, but there's a limit. Nine women can't make a baby in one month, and ten developers can't build a 3-month project in one week.
Realistically, you can maybe cut 20-30% off the timeline by:
- Paying for more developer time (more expensive)
- Being super responsive with feedback
- Cutting features to launch MVP first
- Having all content and decisions ready to go
But you can't cut 50% without seriously compromising quality or paying a fortune for a huge team.
What happens if you try to rush too much?
We've seen it. Someone needs their web app in "2 weeks" for a project that realistically takes 8 weeks.
What happens:
- Developers cut corners
- Testing gets skipped
- Bugs make it to launch
- Users have a terrible experience
- Fixing the rushed work takes longer than just doing it right the first time
You end up spending more money and launching later anyway.
Bottom line
Simple website: 8-16 weeks
Complex website: 12-20 weeks
Simple web app: 12-20 weeks (3-5 months minimum)
Complex web app: 20-40+ weeks (5-10+ months)
Add 20-40% buffer for the unexpected stuff that always comes up.
Want to launch faster? Learn why building an MVP instead of a full product gets you to market quicker and reduces risk.
Want a more specific timeline for your project? Tell us what you're building and we'll give you an honest estimate based on what you actually need.
Frequently asked questions
How long does it really take to build a website?
Simple websites take 8-16 weeks from start to launch. This includes planning (2 weeks), design and development (4-10 weeks), revisions (2-3 weeks), and launch (1 week). Complex websites with many pages or custom features take 12-20 weeks.
Add 2-4 weeks if you're slow providing content or feedback.
How long does web app development take?
Simple web applications take 12-20 weeks (3-5 months). Complex applications take 20-40+ weeks (5-10+ months). Timeline depends on features, integrations, and how quickly you provide feedback. Most delays come from changing requirements mid-project or slow client responses.
Budget for 20-40% extra time for unexpected issues.
What slows down web development projects the most?
The biggest delays come from clients not having content ready, changing requirements mid-project, slow feedback/approvals, waiting for third-party access or information, and developers juggling too many projects. Be responsive, make decisions upfront, and choose developers who dedicate proper time to your project.
Most delays are preventable with good planning.
Can I rush web development to launch faster?
You can speed up by 20-30% maximum by paying for more developer time, being very responsive with feedback, cutting features to MVP first, and having all content ready. But you can't cut 50% without compromising quality or paying a fortune for a large team.
Rushed projects usually end up costing more and taking longer to fix.
What's a realistic timeline for an MVP?
MVP (Minimum Viable Product) takes 8-12 weeks for web applications. This gets you core features working so you can launch and learn. You can then add features based on real feedback rather than guesses. MVPs let you start earning revenue faster while building the rest over time.
Launch in 2-3 months instead of waiting 6-9 months for everything.
How do I keep my web project on schedule?
Respond to developer questions within 1 business day, have all decisions made upfront, provide content early, avoid mid-project changes, trust your developer's timeline estimates, and choose developers who aren't juggling 10 projects. Good communication and realistic expectations keep projects on track.
Fast responses = fast project.
About &7: We've built hundreds of websites and web applications for Singapore businesses. We give honest timelines and actually stick to them because we've done this enough times to know what's realistic.