15 High Street Portsmouth PO1 2LP Data via plota.co.uk

26/00316/LBC - Listed Building Consent Awaiting decision
Extensions & alterationsListed buildings

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. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
16 Mar 2026
✓
Consultation
31 Mar 2026
Decision
Expected by 11 May 2026

This application is under consideration - no decision has been issued yet. Plota predicted a decision around 12 Sept 2026; it is now day 180. The consultation period closed on 24 Apr 2026.

Documents 7

Statements & assessments 1

PDF 0783 DESIGN AND HERITAGE STATEMENT V1 Design & Access Statement · 16 Mar 2026 View ↗

Plans & drawings 3

PDF 0011 A-EXISTING PLANS ELEVATIONS Drawing · 16 Mar 2026 View ↗ PDF 0200 A-PROPOSED PLANS ELEVATIONS Drawing · 16 Mar 2026 View ↗ PDF 0010 B-LOCATION AND SITE PLANS OS Extract · 16 Mar 2026 View ↗

Application forms 1

PDF APPLICATION FORM REDACTED Application Form · 16 Mar 2026 View ↗

Consultation & comments 1

PDF THE GEORGIAN GROUP Consultee Comment · 24 Apr 2026 View ↗

Other documents 1

IMG 1.04.26 Site Notice · 2 Apr 2026 View ↗

All documents on the council site ↗

Site constraints 6

Grade II listed: Rockingham (Number 14) and Nelson House (Number 15)
List entry 1333182 · 4 m from the pin · 21 more listed buildings within 150 m (3 Grade II*, 18 Grade II)
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show the other 21 with distances
Historic England ↗
Nutrient neutrality catchment: Solent: Includes Chichester and Langstone Harbours SPA/Ramsar, Solent and Southampton Water SPA/Ramsar, Solent Maritime SAC, Portsmouth Harbour SPA/Ramsar
New homes and overnight accommodation must show nutrient neutrality before approval.
Natural England advice: extra wastewater in these catchments harms protected habitats, so schemes must offset their nutrient load, usually through credits.
Old Portsmouth conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Air quality management area: Portsmouth AQMA No.7
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Special protection area 309 m away: Solent and Dorset Coast
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Also on the record
Inside the Portsmouth built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Important details

Council
Portsmouth
Application type
Listed Building Consent
Postcode
PO1 2LP
Received
16 Mar 2026
Validated
16 Mar 2026
Ward
St Thomas
Case officer
Show
Target decision
11 May 2026
Decision level
Delegated
Applicant
Show
Agent
Carl Architect Ltd

Decision outlook

Day 180, past the statutory target. 88% of extensions in Portsmouth are decided within thirteen weeks; extensions of time are common, and the council need not decide on the day. Last seen undecided on 6 Sept 2026.

Day 180124 days past the 56-day target
62%decided within 8 weeks
86%approved
197decided in the last year

Plota live figures for extensions decided by Portsmouth in the last twelve months, from validation. Portsmouth decision record →

Public comments

No public comments yet.

11 neighbours consulted · Last counted 6 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14773647
Neighbours
31 Mar 2026
Consultation
31 Mar 2026
Comments by
24 Apr 2026
Site or press notice
1 Apr 2026
Statutory expiry
11 May 2026
Env. assessment
No

Historical activity at this location

26 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2023
External alterations to roof to include installation of cowls to existing chimney pots
23/00314/LBC
Within ~100m

Nearby activity

2024 Approved
The Duke Of Buckingham Hotel 119 High Street Portsmouth PO1 2HW
Conversion of existing hotel and restaurant to form 8 no. apartments (Class C3) to includ…
24/01085/FUL
2025 Approved
Buckingham Cottage 1 Highbury Street Portsmouth PO1 2EU
Conversion of existing hotel (Class C1) to single dwellinghouse (Class C3), including pro…
25/01403/FUL
2025 Approved
29 St Thomas's Street Portsmouth PO1 2EZ
Construction of single storey rear extension (following demolition of existing)
25/00682/HOU
2024 Approved
Buckingham House 11 High Street Portsmouth PO1 2LP
Change of use from hotel (Class C1) to 6-bed dwellinghouse (Class C3)
24/01222/FUL
2024 Refused
29 St Thomas's Street Portsmouth PO1 2EZ
Construction of single storey rear extension following removal of existing conservatory
24/00956/HOU
2024
The Duke Of Buckingham Hotel 119 High Street Portsmouth PO1 2HW
Conversion of existing hotel and restaurant, to form a 17 person student halls of residen…
24/01086/FUL
2022 Approved
2 Farthing Lane Portsmouth PO1 2NP
Construction of single storey front extension
22/00573/HOU
2022 Approved
90 St Thomas's Street Portsmouth PO1 2EZ
Construction of rear dormer; alterations to ground floor windows to include new patio doo…
22/01104/HOU
2022 Refused
4 Highbury Street Portsmouth PO1 2EU
Alterations to existing mansard to create a terrace on existing rooftop, with associated…
22/00527/HOU
2022 Approved
4 Highbury Street Portsmouth PO1 2EU
Construction of single storey rear extension
22/00519/HOU
2021 Approved
3 Farthingale Terrace Peacock Lane Portsmouth PO1 2TL
Alterations to roof to include construction of rear dormer with Juliet balcony and instal…
21/01521/HOU
2020 Withdrawn
19C High Street St Thomas Portsmouth PO1 2LP
Construction of two storey rear extension to replace conservatory and lower level, second…
20/01346/HOU
2020 Approved
Buckingham House 11 High Street Portsmouth PO1 2LP
Change of use from hotel (Class C1) to a 6 no. bed dwelling (Class C3)
20/00547/FUL
2020 Approved
Felton House 12 High Street Portsmouth PO1 2LP
Replacement of side gate with front door and associated doorcase.
20/00343/LBC
2019 Approved
Felton House 12 High Street Portsmouth PO1 2LP
Conversion of existing building to form two dwellinghouses; external alterations to inclu…
19/01011/LBC
2019 Approved
Felton House 12 High Street Portsmouth PO1 2LP
Conversion of existing building to form two dwellinghouses
19/01010/FUL
2020 Approved
36 St Thomas's Street Portsmouth PO1 2EZ
Installation of secondary glazing and plantation shutters to interior; installation of ca…
20/00106/LBC
2018 Approved
5 Peacock Lane Portsmouth PO1 2PA
Installation of replacement windows, rear external doors, and rainwater goods; re-renderi…
18/01001/LBC
2018 Approved
19A High Street Portsmouth PO1 2LP
Construction of second floor infill extension and construction of third floor roof extens…
18/00863/HOU
2017 Approved
23 High Street Portsmouth PO1 2LS
External alterations to include replacement slim-line timber double glazed windows to sec…
17/02093/LBC
2016 Approved
3 Penny Street Portsmouth PO1 2NH
External alterations to include installation of double glazed sash windows to replace exi…
16/01525/LBC
2017 Approved
24 St Thomas's Street Portsmouth PO1 2EZ
Retrospective application for the construction of first floor porch (to replace existing)
17/00576/PLAREG
2016 Approved
33 St Thomas's Street Portsmouth PO1 2EZ
Installation of replacement aluminium windows to front elevation
16/01502/HOU
2016 Approved
30 St Thomas's Street Portsmouth PO1 2EZ
Construction of single storey rear extension (to replace existing) and installation of wi…
16/01373/HOU
2016 Approved
24 St Thomas's Street Portsmouth PO1 2EZ
Installation of balcony to first floor rear elevation with replacement access staircase t…
16/00699/HOU
Portsmouth
Planning Authority Score
3.1/10
Poor
#232 of 296 councils
Relevant to this application:
Other decisions

Portsmouth ranks #188 out of 296 councils for householder decision speed. 48% of applications have the time limit extended, above the 41% national average. Householder applications are slightly less likely to be approved here (89%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Portsmouth decision statistics
Based on MHCLG data, the year to March 2026
86%
Overall approval rate
Below avg (87%) #196 of 296
89%
Householder approved
Below avg (90%) #207 of 296
60%
Decided in 8 weeks
Below avg (63%) #188 of 296
48%
Extended time limit
Above avg (41%) #217 of 296
61%
Minor dwellings approved
44 decided (1-9 homes)
90%
Major dwellings approved
10 decided (10+ homes)
77%
Change of use approved
99 decided
613
Total decisions
85 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings