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15 High Street Portsmouth PO1 2LP

26/00316/LBCListed Building ConsentAwaiting decision
Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Remodelling of interior, removal of rear bay window to be replaced with new timber glazed doors. Adaption to existing single-storey extension with new timber glazed doors and window. Removal of existing railings to roof terrace to be replaced with new traditional style black metal railings.

Received
16 March 2026
Decision due
11 May 2026
Decision level
Delegated (officer decision)
Ward
St Thomas
Agent
Carl Architect Ltd
  1. Received16 Mar
  2. Validated16 Mar
  3. Consult.24 Apr
  4. Target11 May
  5. Decided

Have your say

Comments close on 24 April.

Comment on the council's siteDocuments (6)

About this application

This is a heritage application for an extension at 15 High Street Portsmouth PO1 2LP. Portsmouth has handled 58 applications of this type. It has been with the council since 16 March 2026 and is still awaiting a decision. The site is in the Old Portsmouth conservation area, with 18 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 28 applications across St Thomas. We hold 195 applications in total for the PO1 postcode area.

86% of heritage applications at Portsmouth City Council were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
PO1 2LP
Application type
Listed Building Consent
Scale / size
Small

Planning application dates

Date validated
16 March 2026
Consultation expiry
24 April 2026
Neighbour consultation start
31 March 2026
Neighbour consultation end
24 April 2026
Last date for comments
24 April 2026

Applicant and agent

Agent
Carl Architect Ltd
Architect profile
CARL ARCHITECT LTD
Agent address
97b Waverley Road Southsea PO5 2PL United Kingdom

Planning decision

Statutory period
56 days

Publicity

Last advertised
3 April 2026
Advertisement expiry
24 April 2026
Site notice start
1 April 2026
Site notice end
22 April 2026

Additional information

Planning Portal ID
PP-14773647
Comments
0
Documents
6
Constraints
4

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Old Portsmouth
  • Listed building: Grade II: Rockingham (Number 14) and Nelson House (Number 15)On this site · +2 more
  • Nutrient neutrality catchment: Solent: Includes Chichester and Langstone Harbours SPA/Ramsar, Solent and Southampton Wat…Applies to new homes and overnight accommodation
  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions, tree preservation orders and brownfield registers. Ask the council if these matter.

Also checked, none recorded (18)

flood storage areas, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves and heritage coasts.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Associated applications

  1. 2026
    16 Mar

    Remodelling of interior, removal of rear bay window to be replaced with new timber glazed doors. Adaption to…

    PendingHouseholderFiled alongside26/00315/HOU
  2. 2026
    16 Mar

    Remodelling of interior, removal of rear bay window to be replaced with new timber glazed doors. Adaption to…

    This applicationPendingListed building consent26/00316/LBC

Source: Portsmouth

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For applicants and trades

Before the decision

You may need a heritage statement. Heritage & archaeology consultants near this site

This is an application for listed building consent.

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Nearest first, within 25 miles of the site. Every firm is listed free.

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