Planning Permission Information
Planning permission doesn’t need to be stressful. At Grannexe, our chartered planning consultants manage your entire planning journey from initial site assessment through to final approval certificates. With over 15 years of experience across South East England, we’ve refined our process to deliver the fastest, most reliable planning success in the industry.

Do I Need Planning Permission?
Yes, you will need planning permission to build a granny annexe in your garden.
Every Grannexe benefits from our unique dual planning approach – we pursue both traditional planning permission and Caravan Act compliance simultaneously, guaranteeing approval through at least one route.

Money Back Guarantee
We’re so confident in securing your planning approval that we offer a complete money-back guarantee. If planning consent isn’t achieved through either of our dual routes, we’ll refund every penny you’ve invested with us.
Frequently Asked Questions
Do I Need Planning Permission for a Granny Annexe?
Yes, and our dual strategy ensures you get it. We pursue both traditional planning permission and Caravan Act compliance, guaranteeing approval through whichever route succeeds first.
How Long Does Planning Take?
Maximum 8-12 weeks with our dual strategy.
What if My Application is Refused?
If traditional planning faces objections, our Caravan Act route provides immediate approval. This is why we can offer our money-back guarantee.
Are There Any Hidden Planning Costs?
All standard planning fees are included in our service. Specialist surveys (if required) are clearly explained upfront with transparent pricing. Most applications proceed without additional surveys.
Ready to start your planning journey? Contact Grannexe today for your free planning assessment and discover how our dual strategy guarantees your annexe approval.