59 Lyonsdown Avenue, New Barnet, EN5 1DX

What is being proposed

Single storey side extension to provide bike store. Addition of a canopy above side door. New timber gates to side. Roof extension involving 1no. new dormer window to rear elevation. Insertion of 2no. circular windows to rear elevation. Alterations to front garden including changes to existing driveway and widening of vehicular access, and new steps. New raised patio to rear with associated steps to garden. New brick garden wall to rear. Replacement of existing windows with triple glazed timber windows

Description as published by Barnet.

What this could mean for you

These are the effects a proposal like this most often raises. Each one is a material planning consideration, so each can form the basis of a comment.

• Daylight and overshadowing
• Overlooking and loss of privacy
• Parking pressure
• Boundaries and garden amenity
• Traffic and access

Derived automatically from the proposal wording. Read the full application before relying on it.

Timeline

1. Received

   13 Jul 2026 · Submitted to the council

2. Validated

   13 Jul 2026 · Checked and published

3. Comments close

   3 Aug 2026 · Last day to have your say

4. Decision due

   7 Sept 2026 · Target date, often slips

5. Decided

   Not yet · Outcome published

Key facts

Reference

26/2575/HSE

Authority

Barnet

Address

59 Lyonsdown Avenue, New Barnet, EN5 1DX

Postcode

EN5 1DX

Type

Extension or home alteration

Scale

Minor

Storeys

1

Applicant

Not published

Agent

Not published

Received

13 Jul 2026

Decision due

7 Sept 2026

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