# Page Not Found

The URL `chapter-7-the-business-case` does not exist.

You might be looking for one of these pages:
- [Chapter 7 The business case (sketch)](https://heldercardeira.gitbook.io/getting-buildings-off-the-ground/chapter-7-the-business-case-sketch.md)
- [Chapter 6 When things go wrong](https://heldercardeira.gitbook.io/getting-buildings-off-the-ground/chapter-6-when-things-go-wrong.md)
- [Chapter 2 Designing the building (sketch)](https://heldercardeira.gitbook.io/getting-buildings-off-the-ground/chapter-2-designing-the-building-sketch.md)
- [Chapter 4 Tendering the works (sketch)](https://heldercardeira.gitbook.io/getting-buildings-off-the-ground/chapter-4-tendering-the-works-sketch.md)
- [Chapter 5 Getting buildings off the ground](https://heldercardeira.gitbook.io/getting-buildings-off-the-ground/chapter-5-getting-buildings-off-the-ground.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://heldercardeira.gitbook.io/getting-buildings-off-the-ground/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://heldercardeira.gitbook.io/getting-buildings-off-the-ground/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/getting-buildings-off-the-ground/chapter-7-the-business-case-sketch.md`)
- Use `Accept: text/markdown` header for content negotiation