The 4-year rule for conservatory planning permission is a regulation that allows homeowners to extend their homes without the need for planning permission, as long as certain criteria are met. Let’s take a closer look at what this means for homeowners considering extending with a conservatory.
Under the 4-year rule, homeowners can build a conservatory without planning permission if...
The conservatory is not higher than the highest part of the roof of the existing house.
The conservatory does not extend beyond the rear wall of the original house by more than 3 metres (if the house is detached) or by more than 2.5 metres (if the house is semi-detached or a terrace). The conservatory does not cover more than 50% of the original garden area.
If the above criteria are met, the homeowner can build the conservatory without planning permission. However, it’s important to note that the 4-year rule only applies if the conservatory is completed within 4 years of the start of construction. If the work takes longer than 4 years to complete, planning permission will then be required.
It’s also worth noting that the 4-year rule only applies to conservatories that are considered to be “permitted development”. This means that the conservatory must meet specific criteria in terms of size, location, and design.
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