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Planning application

24 Hawkshead Lane North Mymms AL9 7TB

Refused Welwyn Hatfield 6/2026/0700/HOUSE HOUSEHOLDER APPLICATION

Works: Extension Loft or dormer Windows or glazing Small domestic

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

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Alteration and extension to roof with the insertion of a new rooflight. Garage conversion involving the replacement of garage door with window

As published by the council, reference 6/2026/0700/HOUSE

Application record

Reference
6/2026/0700/HOUSE
Type
HOUSEHOLDER APPLICATION
Status
Decided - Refused
Decision
Refused
Received
20 Apr 2026
Validated
20 Apr 2026
Decided
15 Jun 2026
Ward
Welham Green & Hatfield South
Parish
North Mymms
Decision by
Delegated
Postcode
AL9 7TB

Timeline

Dates from the published record

  1. 20 Apr 2026

    Received by Welwyn Hatfield

  2. 15 Jun 2026

    Decision issued: Refused

  3. 9 Aug 2026

    Added to PlanIndex

What refusal means

The process from here

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

About householder applications

How this application type works

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

Nearby applications

Within 500 metres

  • 22 Hawkshead Lane Hatfield AL9 7TB

    6/2021/2348/LAWP Submitted 9 Aug 2021 48m away

    Certificate of lawfulness for the erection of a 3m two storey rear extension

    Granted Lawful development Extension

  • 22 Hawkshead Lane Hatfield AL9 7TB

    6/2021/2347/LAWP Submitted 9 Aug 2021 48m away

    Certificate of lawfulness for the creation of loft conversion incorporating hip to gable enlargements, introduction of rear dormer and insertion of front, side and rear roof lights.

    Granted Lawful development Loft or dormer

  • 22 Hawkshead Lane Hatfield AL9 7TB

    6/2021/2349/LAWP Submitted 9 Aug 2021 48m away

    Certificate of lawfulness for the erection of a single storey side extension to side of original dwelling only.

    Granted Lawful development Extension
    Small domestic

  • Hawkshead Lane North Mymms Brookmans Park Hatfield AL9 7TA

    6/2023/0424/PN15 Submitted 23 Feb 2023 383m away

    Erection of a 15m high slim-line monopole with 3 no. antennas, 3 no. equipment cabinets and ancillary development

    Refused Prior approval

  • Small Animal Hospital at the Hawkshead Campus of the Royal Veterinary College AL9 7TA

    6/2026/0765/EIA Submitted 30 Apr 2026 407m away

    Request for a screening opinion for proposal to implement the proposals for a new Small Animal Hospital as per the Approved Hawkshead Campus Masterplan (2018): Request for an Environmental Impact Assessment (EIA) Screening Opinion under Regulations 5 and 6 of the Town and Country Planning (E nvironmental Impact Assessment) Regulations 2017 (as amended)

    Decided Outline

  • Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

    6/2026/1337/FULL Submitted 30 Jul 2026 446m away

    81% historically approved · decision due ~28 Sep

    Relocation of the Transfusion Medicine Vet Pod and associated parking, landscaping and associated works

    Awaiting decision Full applications

In Welwyn Hatfield

  • 6/2026/1228/HOUSE Granted

    109 Mount Way Welwyn Garden City AL7 4LA

    Erection of single storey front extension

    13 Jul 2026 Householder
  • 6/2026/1011/HOUSE Granted

    5 Brookside Crescent Cuffley Potters Bar EN6 4QW

    Erection of rear extension, single storey side extension, new porch, additions/alterations to windows on side elevation and demolition of garage

    9 Jun 2026 Householder
  • 6/2026/0703/HOUSE Granted

    57 Great North Road Brookmans Park AL9 6LA

    Erection of part double part single storey rear extension, single storey front porch extension, raising of roof and eaves to accommodate loft conversion, alterations to materials and fenestration, erection of front boundary wall and gates

    20 Apr 2026 Householder
  • 6/2026/0534/HOUSE Refused

    16 Chipmunk Chase Hatfield AL10 9GH

    Retention of single storey rear extension and garage conversion to study/office

    24 Mar 2026 Householder
  • 6/2026/1175/HOUSE Granted

    5A Honeycroft Welwyn Garden City AL8 6HR

    Erection of a single storey rear extension, alterations to opening on side elevation and garden room with covered area following demolition of conservatory

    7 Jul 2026 Householder