Can I build a rear extension that extends out, and into the shared driveway a bit?

[noidea321]

I've added photos of the land title, and screenshot of where I plan to build. The black lines are my intended extension, the red dashed lines show where my fence sits.

If I extend as full width of the home, I will block half of my garage, which is fine as I don't use my garage for my car.

Land registry shows that half of shared driveway is within my boundary, but neighbour has right of access, and vice versa with his.

Where it gets murky is, is where does the shared boundary end? For example, you will see from the Google maps screenshot, the neighbour has also extended (perhaps decades ago), and it is full width before the diagonal bit.

The registry states this: "The land tinted pink on the filed plan has the benefit of rights of drainage through the drains and sewers lying under adjoining land leading into the main sewer and a right of way over the part of the side passageway not included in the title."

Any help would be appreciated here.

P.S. No 8. opposite has done exactly what I plan to do (it looks a bit wonky on screenshot, but they have extend out and full width of house amd blocked half of their garage".

 

[denso13]

You've already asked this?

N

Thread 'Will I be allowed to build rear extension like this?'

3 Mar 2026

Not my property: technically the boundary lies in the middle of the shared pathway, both properties have right of access to the path according to title register.

The blue lines denote where the current fences are, the red dashed lines is where the potential build would sit.

I've also attached the title plan, if that helps.

I'm inclined to say no, however previous occupiers were granted planning permission 5 years ago, with plans detailing that the width is 5m, which would definitely encroach onto the side access (width would reach middle of garage)

• noidea321
• Replies: 23
• Forum: Building Regulations and Planning Permission