Don’t panic. If you’ve already built over a sewer without an agreement, you can apply for a retrospective build over agreement. It’s like saying, “Oops, I did it again,” but with a pen and a checkbook. Water companies aren’t monsters—they’ll usually approve it if the build is safe and doesn’t block access.
Just be prepared for a little more scrutiny, and possibly a survey fee. It’s a small price for peace of mind, like buying insurance for a trampoline—better safe than sorry.
A Few Friendly Tips
Always check your property’s “sewer map” before any construction. You can get this from your local water company or the Land Registry—it’s like a treasure map, but instead of gold, you find buried pipes.
Remember that build over agreements are not just for houses—they apply to garages, extensions, patios, and even big sheds. If you’re building something permanent over any public sewer (yours or shared), you likely need one.
And if you’re buying a home, ask your solicitor if any existing structures have these agreements. It’s a small question that can save you a big headache later.
