Islington Terrace Extension Checklist
Planning an extension to an Islington terrace? This checklist covers the key constraints and design points you should review before speaking to an architect or submitting to Islington Council.
0 of 16 points completed
Context Review
Design Review
Impact Review
Preparation Review
Review Your Progress
Complete the checklist above to identify areas that may need further professional review or official council guidance.
Guidance by Extension Type
How Islington typically reviews different domestic proposals.
Rear Extension
Typically the most common. Islington officers look for "subordination" to the original house and high-quality material matching.
Side-Return Extension
Often involves infilling the "dog-leg" gap. Light and boundary relationships with neighbours are the primary concern.
Loft Conversion / Dormer
Visibility from the street is critical in Islington conservation areas. Rear dormers are often preferred over front or side additions.
Basement / Lightwell
Subject to strict Basement Development Spds. Structural impact and front-garden appearance are key review points.
Garden Room
Usually must remain ancillary to the main house and not exceed specific height limits to avoid "overbearing" neighbours.
When a Visual helps in Islington
In Islington's dense terrace streets, a 3D visual or photomontage is often the best way to prove that a proposal is not "overbearing" to a neighbour. If your extension is visible from the street or sits close to a conservation area boundary, a street-scene CGI can help the planning officer confirm character fit without multiple design rounds.
Official Islington and Planning Portal Links
Disclaimer: This checklist is a prompt tool for homeowners and does not constitute architectural, planning, or legal advice. Planning rules in Islington are subject to change and specific local policies (such as SPD documents). You should always check the official council guidance and consult a qualified professional before proceeding with a project.