Permitted Development Extensions in Islington

We provide clear, professional guidance on permitted development extensions in Islington and surrounding areas. Whether you’re planning a rear, side, or two-storey extension, understanding local planning constraints and national permitted development limits is essential before work begins.

Common Permitted Development Issues in Islington

• Roof alteration exceeding permitted cubic volume
• Extension covering more than 50% of garden area
• Listed building restrictions
• Materials not matching existing dwelling
• Side extension exceeds half the width of the original house
• Two-storey extension too close to rear boundary

Property Types We Advise On in Islington

• Townhouses
• Properties with previous extensions
• 1930s suburban homes
• New build developments
• Bungalows

Frequently Asked Questions

How much does a planning application cost?

Fees vary depending on project type and local authority charges.

Does permitted development apply to new-build homes?

Some new-build homes have permitted development rights removed by planning condition.

What is the maximum size allowed under permitted development?

Size limits depend on property type and location. Detached houses may have larger rear extensions than terraced homes, subject to height and boundary constraints.

Are side extensions allowed under permitted development?

Side extensions are permitted in some cases, but must not exceed half the width of the original house and must meet height limits.

Is planning permission needed for internal alterations?

Internal changes usually do not require planning permission unless the property is listed.

Do I need drawings for a Lawful Development Certificate?

Yes. Accurate scaled drawings are required to demonstrate compliance.

If you're planning an extension in Islington and want to confirm whether it qualifies under permitted development rules, request a free assessment today and get clarity before you build.