Skip to content
PlanIndex Get alerts
Menu

Planning application

48 And 50 Longfield Avenue London NW7 2EG

Awaiting decision Barnet 25/3945/FUL Full Application

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Two storey side extension to both properties. Single storey rear extension to No. 48. Relocation of entrance door to No.50 to front elevation including new porch

As published by the council, reference 25/3945/FUL

Application record

Reference
25/3945/FUL
Type
Full Application
Status
Pending Consideration
Received
29 Sep 2025
Validated
29 Sep 2025
Ward
Mill Hill
Postcode
NW7 2EG

Site history

Applications at this address on the Barnet register

This site has had 2 applications since 2025.

  • 25/4455/FUL Awaiting decision

    48 And 50 Longfield Avenue London NW7 2EG

    Two storey side extension to both properties. Single storey rear extension to No. 48. Relocation of entrance door to No.50 to front elevation including new porch

    Submitted 7 Nov 2025 Full applications

Timeline

Dates from the published record

  1. 29 Sep 2025

    Received by Barnet

  2. 10 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 24 November 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Barnet took a median of 46 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Rostam Architects Agent, an architecture practice registered in London

Active · incorporated 2023 · London

3 applications on PlanIndex · across 2 councils

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

17 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with Barnet for determination, against a statutory target of eight weeks. Over the last year Barnet decided full applications in a median of 56 days. More in our guide to how long planning decisions take.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 48 Longfield Avenue London NW7 2EG

    25/4738/192 Submitted 26 Nov 2025 50 yards away

    Roof extension involving rear dormer window and new side gable window

    Withdrawn Lawful development Extension Loft or dormer +1 15 docs
  • 48 And 50 Longfield Avenue London NW7 2EG

    25/4455/FUL Submitted 7 Nov 2025 50 yards away

    63% historically approved · decision due ~9 Jan

    Two storey side extension to both properties. Single storey rear extension to No. 48. Relocation of entrance door to No.50 to front elevation including new porch

    Awaiting decision Full applications Extension 18 docs
    Small domestic
  • 44 Longfield Avenue London NW7 2EG

    21/4932/HSE Submitted 13 Sep 2021 50 yards away

    Roof extension involving rear dormer window, 1no side and 2no front facing rooflight. Single storey rear extension. (amended description)

    Granted Householder Extension Loft or dormer +1 15 docs
    Small domestic
  • Land To The Rear Of 39-44 Rowlands Close London NW7 2DN

    TPP/0737/25 Submitted 5 Nov 2025 50 yards away

    2 x Oak (applicants ref. T1, T2) - Reduce branches overhanging 14 Fakenham Close by 2.5 metres. Standing in Group G1 of Tree Preservation Order.

    Granted Trees 6 docs
  • 24 Longfield Avenue London NW7 2EG

    26/3099/PNH Submitted 21 Aug 2026 100 yards away

    56% historically approved · decision due ~16 Oct

    Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 2.81 metres and eaves height of 2.81 metres. Following demolition of the existing rear extension and outbuilding.

    Awaiting decision Prior approval Extension Demolition
    Small domestic
  • 57 Tithe Walk London NW7 2PY

    26/2148/HSE Submitted 9 Jun 2026 150 yards away

    Single storey rear extension

    Refused Householder Extension
    Small domestic

In Barnet

  • 26/3828/FUL Awaiting decision

    41 - 43 Sneath Avenue London NW11 9AJ

    Part single, part two storey rear extensions to both properties following the demolition of the single storey rear extension at no.43

    22 Oct 2026 Full applications
  • 26/3829/FUL Awaiting decision

    369 Watford Way London NW4 4TE

    Change of use of the existing dwelling (Use Class C3) to a 11 bed 11 Person HMO (House in Multiple Occupation) (Use Class Sui Generis) including part single, part two storey side and rear extensions and roof extension involving rear dormer window. Associated refuse/recycling storage, cycle parking, landscaping and external amenity space

    22 Oct 2026 Full applications
  • 26/3812/FUL Awaiting decision

    Ground Floor Battle House Mews 1 East Barnet Road Barnet EN4 8RR

    Erection of front canopy for fruit and vegetables area and installation awning and shutter box

    Received 21 Oct, published by the council 22 Oct 2026 Full applications
  • 26/3821/FUL Awaiting decision

    170 Long Lane London N3 2RA

    Roof extension with rear dormer windows and 5no. rooflights to provide 1no. self-contained flat

    21 Oct 2026 Full applications
  • 26/3794/FUL Awaiting decision

    283 Cricklewood Lane London NW2 2JJ

    Change of use of the property from a single family dwelling (Class C3) to a House in Multiple Occupation (HMO) (Sui generis) for up to 7 people. Associated refuse/recycling and cycle storage

    20 Oct 2026 Full applications