Skip to content
PlanIndex Get alerts
Menu

Planning application

15 Chalcot Square London NW1 8YA

Granted Camden 25-00150-HAPP Householder

Works: Loft or dormer Windows or glazing Domestic

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

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Replacement of the rear terrace, railings, external staircase, and internal alterations; the replacement of existing windows and doors throughout; replacement of existing rooflights to the rear roof; and an acoustic enclosure in the rear garden to house an air source heat pump (ASHP).

As published by the council, reference 25-00150-HAPP

Application record

Reference
25-00150-HAPP
Category
Householder
Status
Final Decision
Decision
Granted
Decided
2 Sep 2025
Postcode
NW1 8YA

Site history

Applications at this address on the Camden register

This site has had 16 applications since 2016: 11 approved, 0 refused.

  • 2026/2298/L Granted

    15 Chalcot Square London NW1 8YA

    Approval of Details for part condition 4(E) (Slates and ridge tiles) of Listed Building Consent; 2025/2386/L "Internal and external alterations including reconfiguration of internal spaces; restoration works across all floors; replacement of rear terrace, balustrade and external staircase; installation of acoustic enclosure for air source heat pump in rear garden; replacement of windows and rooflights; roof repairs; and installation of underfloor heating ", granted on 02/09/2025

    Decided 23 Sep 2026 Heritage and listed buildings
  • 2026/2298/P Awaiting decision

    15 Chalcot Square London NW1 8YA

    Approval of Details (Condition 4E) of Listed Building Consent; 2025/2386/L "Internal and external alterations including reconfiguration of internal spaces; restoration works across all floors; replacement of rear terrace, balustrade and external staircase; installation of acoustic enclosure for air source heat pump in rear garden; replacement of windows and rooflights; roof repairs; and installation of underfloor heating ", granted on 02/09/2025

    Submitted 5 Jun 2026 Reserved matters
  • 2026/2111/L Awaiting decision

    15 Chalcot Square London NW1 8YA

    Approval of Details Pursuant to Condition 4 parts (a), (b), (c) and (f) (joinery, kitchen joinery, kitchen wall opening, terrace railings and external staircase) of Listed Building Consent Ref: 2025/2386/L dated 02/09/2025. "Internal and external alterations including reconfiguration of internal spaces; restoration works across all floors; replacement of rear terrace, balustrade and external staircase; installation of acoustic enclosure for air source heat pump in rear garden; replacement of windows and rooflights; roof repairs; and installation of underfloor heating."

    Submitted 22 May 2026 Heritage and listed buildings
  • 2026/2111/P Awaiting decision

    15 Chalcot Square London NW1 8YA

    Approval of Details Pursuant to Condition 4 (Detailed Drawings and Materials) of Listed Building Consent Ref: 2025/2386/L dated 02/09/2025. "Proposal: Internal and external alterations including reconfiguration of internal spaces; restoration works across all floors; replacement of rear terrace, balustrade and external staircase; installation of acoustic enclosure for air source heat pump in rear garden; replacement of windows and rooflights; roof repairs; and installation of underfloor heating."

    Submitted 22 May 2026 Full applications
  • 2026/2034/L Granted

    15 Chalcot Square London NW1 8YA

    Details pursuant to Condition 4(a) (joinery) and 4(b) (terrace railings and external staircase) of Listed Building Consent 2025/2372/L, dated 29/09/2025, for the "Single storey rear extension and associated internal alterations. Enlargement of upper ground floor terrace."

    Decided 4 Sep 2026 Heritage and listed buildings
  • 2026/2033/P Granted

    15 Chalcot Square London NW1 8YA

    Details pursuant to Condition 4 (Tree protection details) of planning permission 2025/2225/P granted on 25/09/2025 "Single storey rear extension at lower ground floor and enlargement of upper ground floor terrace"

    Decided 23 Jul 2026 Full applications
  • 2026/2034/P Awaiting decision

    15 Chalcot Square London NW1 8YA

    Details pursuant to part-discharge Condition 4 of Listed Building Consent 2025/2372/L, granted 29.09.2025, for a "Single storey rear extension and associated internal alterations. Enlargement of upper ground floor terrace." Namely to discharge Condition 4 a) Details including elevations and sections at 1:10 of all new joinery including internal and external doors; and, b) Elevation and section drawings at 1:10 of the new terrace railings and external staircase.

    Submitted 19 May 2026 Full applications
  • 2026/0554/P Granted

    15 Chalcot Square London NW1 8YA

    Details of Condition 8 (Materials of ASHP enclosure) of planning permission 2025/2117/P, granted on 02/09/2025 for: Replacement of the rear terrace, railings, external staircase, and internal alterations; the replacement of existing windows and doors throughout; replacement of existing rooflights to the rear roof; and an acoustic enclosure in the rear garden to house an air source heat pump (ASHP).

    Decided 11 Feb 2026 Full applications
  • 2025/5156/P Granted

    15 Chalcot Square London NW1 8YA

    Details of condition 4 (Tree Protection Plan) of planning permission 2025/2225/P dated 25/09/2025 for 'Single storey rear extension at lower ground floor and enlargement of upper ground floor terrace'

    Decided 13 Jan 2026 Full applications
  • 2025/5106/P Granted

    15 Chalcot Square London NW1 8YA

    Details of Conditions 6 (ASHP Living Roof) and 8(a) (Materials of ASHP enclosure) of planning permission 2025/2117/P, granted on 02/09/2025 for: Replacement of the rear terrace, railings, external staircase, and internal alterations; the replacement of existing windows and doors throughout; replacement of existing rooflights to the rear roof; and an acoustic enclosure in the rear garden to house an air source heat pump (ASHP).

    Decided 22 Jan 2026 Full applications

Timeline

Dates from the published record

  1. 2 Sep 2025

    Decision issued: Granted

  2. 22 Jul 2026

    Added to PlanIndex

What this grant of permission means

Camden granted permission on 2 September 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 15 Chalcot Square London NW1 8YA

    2026/2298/L Submitted 5 Jun 2026 50 yards away

    Approval of Details for part condition 4(E) (Slates and ridge tiles) of Listed Building Consent; 2025/2386/L "Internal and external alterations including reconfiguration of internal spaces; restoration works across all floors; replacement of rear terrace, balustrade and external staircase; installation of acoustic enclosure for air source heat pump in rear garden; replacement of windows and rooflights; roof repairs; and installation of underfloor heating ", granted on 02/09/2025

    Granted Heritage and listed buildings Loft or dormer Windows or glazing 10 docs

  • 15 Chalcot Square London NW1 8YA

    2026/2298/P Submitted 5 Jun 2026 50 yards away

    94% historically approved · decision due ~6 Aug

    Approval of Details (Condition 4E) of Listed Building Consent; 2025/2386/L "Internal and external alterations including reconfiguration of internal spaces; restoration works across all floors; replacement of rear terrace, balustrade and external staircase; installation of acoustic enclosure for air source heat pump in rear garden; replacement of windows and rooflights; roof repairs; and installation of underfloor heating ", granted on 02/09/2025

    Awaiting decision Reserved matters Loft or dormer Windows or glazing 9 docs

  • 15 Chalcot Square London Camden NW1 8YA

    2025/2372/L 50 yards away

    96% historically approved

    Single storey rear extension and associated internal

    Awaiting decision Heritage and listed buildings Extension
    Small domestic

  • 15 Chalcot Square London NW1 8YA

    2017/4550/T 50 yards away

    (TPO REF C67-T5) REAR GARDEN: 1 x Lime - Reduce crown by 30%, by approximately 3m over the crown, cut back limb extending ove rear gardens so it is within the crown of the tree and remove any dead or broken limbs

    Granted Trees

  • 15 Chalcot Square London NW1 8YA

    2025/5106/P Submitted 11 Nov 2025 50 yards away

    Details of Conditions 6 (ASHP Living Roof) and 8(a) (Materials of ASHP enclosure) of planning permission 2025/2117/P, granted on 02/09/2025 for: Replacement of the rear terrace, railings, external staircase, and internal alterations; the replacement of existing windows and doors throughout; replacement of existing rooflights to the rear roof; and an acoustic enclosure in the rear garden to house an air source heat pump (ASHP).

    Granted Full applications Loft or dormer Windows or glazing 6 docs

  • 15 Chalcot Square London NW1 8YA

    2026/2034/L Submitted 19 May 2026 50 yards away

    Details pursuant to Condition 4(a) (joinery) and 4(b) (terrace railings and external staircase) of Listed Building Consent 2025/2372/L, dated 29/09/2025, for the "Single storey rear extension and associated internal alterations. Enlargement of upper ground floor terrace."

    Granted Heritage and listed buildings Extension 7 docs
    Small domestic

In Camden

  • 2026/4031/P Awaiting decision

    10 Albert Street London NW1 7NZ

    Erection of an extension to widen rear dormer window at second floor.

    Received 2 Oct, published by the council 6 Oct 2026 Householder
  • 2026/3231/P Granted

    9 Wadham Gardens London NW3 3DN

    Replacement rear timber casement window, installation of timber-panelled side access door, replacement of existing front boundary gates and piers, installation of metal railings, provision of reclaimed Yorkstone paving to the front garden and associated works.

    Received 30 Jul, published by the council 9 Aug 2026 Householder
  • 2026/4030/P Awaiting decision

    6 Leverton Street London NW5 2PJ

    Replace garden wall with metal railing; replace 3 rear windows, 3 rear elevation side windows, 1 rear door and 1 rear elevation side door with double-glazed crittal windows and doors; remove 2 rear windows; render rear elevation brickwork; and associated works.

    Received 1 Oct, published by the council 9 Oct 2026 Householder
  • 2026/3493/P Granted

    2 Wildwood Terrace London NW3 7HT

    Enlargement of the existing rear French doors and single-leaf door at lower ground floor level, together with the replacement of five rear timber sash windows.

    Received 14 Aug, published by the council 22 Aug 2026 Householder
  • 2026/2003/P Granted

    23 Glenmore Road London NW3 4BY

    Installation of external AC unit with acoustic enclosure to rear garden.

    Received 29 May, published by the council 24 Jul 2026 Householder