Cathedral House 63 - 68 St Thomas's Street Portsmouth PO1 2EZ Data via plota.co.uk

26/00745/FUL - Full Application Approved
Extensions & alterations

Proposal

Retrospective application for replacement PVCu windows to front, rear and side elevations Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
29 Jun 2026
✓
Validated
7 Jul 2026
✓
Consultation
24 Jul 2026
✓
Approved
16 Sept 2026

Approved on 16 Sept 2026 · Fully Delegated Decision · Last checked 17 Sept 2026

Documents 10

Statements & assessments 1

PDF DESIGN, ACCESS & HERITAGE STATEMENT Design & Access Statement · 29 Jun 2026 View ↗

Plans & drawings 5

PDF EXISITING AND PROPOSED ELEVATIONS Drawing · 15 Sept 2026 View ↗ PDF SITE PLAN Block Plan · 10 Jul 2026 View ↗ PDF LOCATION PLAN - RED LINE OS Extract · 29 Jun 2026 View ↗ PDF MAIN ELEVATIONS PDF Mixed/Combined Plans · 29 Jun 2026 View ↗ PDF INTERNAL ELEVATION PDF Mixed/Combined Plans · 29 Jun 2026 View ↗

Application forms 2

PDF APPLICATIONFORMREDACTED Application Form · 29 Jun 2026 View ↗ PDF APPLICATION FORM REDACTED Application Form · 29 Jun 2026 View ↗

Consultation & comments 1

PDF Objector’s name hidden Show Objection Comment · 17 Aug 2026 View ↗

Other documents 1

PDF STATUTORY ADVERT Correspondence · 15 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 8

Grade II listed: Becket House and Peppercorn House
List entry 1387205 · 27 m away · 21 more listed buildings within 150 m (1 Grade I, 1 Grade II*, 19 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 ↗
Flood zone 2, rivers and sea
Medium chance: between a 1 in 100 and 1 in 1,000 annual chance from rivers, or 1 in 200 to 1 in 1,000 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
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.
Special protection area 84 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
Scheduled monument 200 m away: Portsmouth Garrison church; Inside the Portsmouth built-up area; Air quality management area 72 m away: Portsmouth AQMA No.7.
Not affected
Not green belt

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
Full Application
Postcode
PO1 2EZ
Received
29 Jun 2026
Validated
7 Jul 2026
Ward
St Thomas
Case officer
Show
Target decision
25 Sept 2026
Decision
Approve
Decision date
16 Sept 2026
Decision level
Fully Delegated Decision
Applicant
Show
Agent
Pike Planning

How this decision compares

Decided in 71 days from validation, 16 days slower than Portsmouth's median of 55 for extensions. Approved, as 86% of extensions here are.

62%decided within 8 weeks
86%approved
255decided in the last year

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

Public comments

1comment received
1 objecting

24 neighbours consulted · Last counted 17 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14851696
Neighbours
24 Jul 2026
Consultation
24 Jul 2026
Comments by
21 Aug 2026
Site or press notice
17 Jul 2026
Statutory expiry
1 Sept 2026
Env. assessment
No

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

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
82 St Thomas's Street Portsmouth PO1 2EZ
Construction of front porch
25/00923/HOU
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
80 St Thomas's Street Portsmouth PO1 2EZ
Construction of single storey rear extension (after demolition of existing conservatory)
24/01428/HOU
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
2023 Approved
45 St Thomas's Street Portsmouth PO1 2EZ
Installation of glass balustrade to roof terrace.
23/00645/LBC
2023 Approved
45 St Thomas's Street Portsmouth PO1 2EZ
Installation of glass balustrade to roof terrace.
23/00644/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 Approved
1-40 Lombard Court Lombard Street Portsmouth
Formation of roof terraces on main roof, to include steel balustrades
22/00502/FUL
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
2020 Refused
33 Warblington Street Portsmouth PO1 2ET
Construction of a first floor rear extension above existing ground floor projection
20/01521/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
86 St Thomas's Street Portsmouth PO1 2EZ
Installation of roof lantern to rear elevation to replace existing
20/00769/LBC
2021
2 Hanover Court Highbury Street Portsmouth PO1 2BN
Construction of conservatory to rear
21/00084/HOU
2020 Approved
9 Hanover Court Highbury Street Portsmouth PO1 2BN
Construction of single storey rear extension (amended plans received 29/06/20)
20/00132/HOU
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
2019 Approved
43 St Thomas's Street Portsmouth PO1 2EZ
Construction of dormer windows to front and rear roofslopes and construction of single st…
19/00304/HOU
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
45 St Thomas's Street Portsmouth PO1 2EZ
Demolition of the existing rear elevation (at ground floor only) and construction of sing…
16/01187/LBC
2016 Approved
108 High Street Portsmouth PO1 2HJ
External alterations to include repairs to defective concrete beams on front elevation by…
16/00744/HOU
2016 Approved
Chantry House 8 Lombard Street Portsmouth PO1 2HX
Alterations to roof to include extension of rear roof slope and installation of dormer wi…
16/00764/HOU
Portsmouth
Planning Authority Score
3.1/10
Poor
#232 of 296 councils
Relevant to this application:
Householder 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