120 St Mary Street Southampton SO14 1PG Data via plota.co.uk

26/00802/FUL - Full Application Awaiting decision
Change of useNew homes

Proposal

Conversion of 1st and 2nd floor dwelling into 2x1 bed flats, with ground floor storage. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
9 Jul 2026
✓
Consultation
15 Jul 2026
Decision
Expected by 3 Sept 2026

This application is under consideration - no decision has been issued yet. Plota predicted a decision around 14 Sept 2026; it is now day 67. The consultation period closed on 5 Aug 2026.

Documents 12

Statements & assessments 2

PDF Design and Access Statement Design and Access Statement · 15 Jul 2026 View ↗ PDF SUSTAINABILITY CHECK LIST Supporting Information · 15 Jul 2026 View ↗

Application forms 2

PDF Application Form Application Form · 15 Jul 2026 View ↗ PDF CIL Form CIL Form · 15 Jul 2026 View ↗

Consultation & comments 5

PDF NEHRARS Consultation Response · 29 Jul 2026 View ↗ PDF HISTORIC ENVIRONMENT - NO OBJECTION Consultee Comment · 27 Jul 2026 View ↗ PDF SWATRS Consultation Response · 22 Jul 2026 View ↗ PDF SWATRS Consultation Response · 22 Jul 2026 View ↗ PDF NEHRA - NATURAL ENGLAND HABITATS CONSULT General Comment · 15 Jul 2026 View ↗

Other documents 3

IMG 16/07/26 Site Notice · 16 Jul 2026 View ↗ PDF NITROGEN BUDGET CALCULATOR Supporting Information · 15 Jul 2026 View ↗ PDF OVERHEATING TOOL Supporting Information · 15 Jul 2026 View ↗

All documents on the council site ↗

Site constraints 5

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.
Article 4 direction
HMO. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
2 listed buildings within 150 m
Nearest: St Mary's Hall, Grade II, 35 m away · 2 Grade II
The site itself is not listed. 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 all 2 with distances
Historic England ↗
Also on the record
Registered park or garden 113 m away: Central Parks; Inside the Southampton 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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Other new applications on this street

3 Aug 2026Pending

121 St Mary Street Southampton SO14 1PG

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10 Jun 2026Approved

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24 Mar 2026Approved

104 - 105 St Mary Street Southampton SO14 1PF

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Important details

Council
Southampton
Application type
Full Application
Postcode
SO14 1PG
Received
9 Jul 2026
Validated
9 Jul 2026
Ward
Bargate
Case officer
Show
Target decision
3 Sept 2026
Applicant
Show
Agent
Show

Decision outlook

Day 67, past the statutory target. 88% of changes of use in Southampton are decided within thirteen weeks, which runs to 8 Oct 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 12 Sept 2026.

Day 6711 days past the 56-day target
57%decided within 8 weeks
88%approved
10%go to committee

Plota live figures for changes of use decided by Southampton in the last twelve months, from validation. Southampton decision record →

Public comments

No public comments yet.

30 neighbours consulted · Last counted 12 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
37199
Neighbours
15 Jul 2026
Consultation
15 Jul 2026
Comments by
5 Aug 2026
Statutory expiry
3 Sept 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

2025 Approved
Application for approval of details reserved by conditions 3 (Energy Efficiency), 4 (Wate…
25/00160/DIS
Within ~100m

Nearby activity

2025 Approved
2H Ascupart Street Southampton SO14 1LU
Conversion of garage to additional living space.
25/00279/FUL
2025
117-119 St Mary Street Southampton SO14 1PF
Redevelopment of the site. Erection of a 5-storey building containing 6 flats (2x 2-bed…
25/00725/FUL
2025 Approved
Kimber Hall Student Residence St Marys Place Southampton SO14 1XA
T1 Cherry (G1 on TPO MAP) - Prune to allow 2.5 meters clear of building, crown raise to 3…
25/00008/TPO
2024 Approved
Kimber Hall Student Residence St Marys Place Southampton City Of Southampton SO14 1XA
Application for removal of condition 14, 15 and 16 of permission 911359/E to remove the p…
24/01295/FUL
2024 Approved
David Moxon Annexe St Marys Place SO14 1XA
Application for removal of condition 6, 7, 9 and 10 of permission 951206/W to remove the…
24/01296/FUL
2024 Approved
129 St Mary Street Southampton SO14 1NX
Installation of extractor flue (Submitted in conjunction with 24/00053/ADV).
24/00052/FUL
2024 Approved
129 St Mary Street Southampton SO14 1NX
Installation of 4x internally illuminated fascia signs (Submitted in conjunction with 24/…
24/00053/ADV
2023 Approved
104 -105 St Mary Street Southampton SO14 1PF
Erection of an additional floor and conversion of existing building to create 7x 1-bed fl…
23/00135/FUL
2022
120 St Mary Street Southampton City Of Southampton SO14 1PG
Conversion of existing 1st and 2nd floor 2 bedroom dwelling in to 2 dwellings (2x1 bed fl…
22/01026/FUL
2022 Approved
101 - 102 St Mary Street and 2 Clifford Street Southampton SO14 1PF
Conversion of existing 13 bed HMO to form 6 flats (1x Studio, 2x 2-bed and 3x 1-bed) with…
22/00352/FUL
2022 Approved
5 James Street Southampton SO14 1PH
Erection of a single storey rear extension (Max Depth 4.06 m, Max Height 3.25 m, Eaves He…
22/00700/PAH
2021 Approved
117-119 St Mary Street Southampton SO14 1PF
Redevelopment of the site. Erection of a 4-storey building containing 6 flats (2x 2-bed…
21/00797/FUL
2021 Approved
6 Jonas Nichols Square Southampton SO14 1JD
Erection of a roof top extension to form 1 x 1-bedroom flat.
21/00327/FUL
2020 Refused
6 Jonas Nichols Square Southampton
Extension at roof level to allow additional floor to create 1 x 1-bedroom flats with asso…
20/01587/FUL
2020 Approved
17 Winton Street Southampton SO14 1LX
Conversion of integral garage into habitable accommodation with associated external alter…
20/01355/FUL
2020 Approved
6 Jonas Nichols Square Southampton
Conversion of upper floor from retail to 1 x 2 bed and 1 x 1 bed flats.
20/00930/FUL
2020 Approved
126 St Mary Street Southampton SO14 1PG
Application for a lawful development certificate for 2 x proposed first floor dwellings (…
20/00833/PLDC
2019 Approved
4 Johnson Street Southampton SO14 1LT
Conversion of garage to habitable accommodation and change of use to flexible dwelling ho…
19/01610/FUL
2019 Approved
78 St Mary Street Southampton SO14 1NZ
Application for removal of condition 4 (extract ventilation) of planning permission ref 1…
19/00745/FUL
2019 Approved
237 - 275 Golden Grove Southampton
Structural alterations including steel columns to existing balconies and coloured TRESPA…
19/00569/R3CFL
2018 Approved
Flat 1 137-138 St Mary Street Southampton SO14 1NS
Erection of a two storey side extension and addition of a storey to existing building to…
18/00112/FUL
2017 Approved
128 St Mary Street Southampton SO14 1PG
Installation of replacement signage, 1 x internally illuminated fascia sign (Submitted in…
17/00614/ADV
2017 Approved
128 St Mary Street Southampton SO14 1PG
Installation of an ATM (Submitted in conjunction with 17/00614/ADV)
17/00613/FUL
2017 Approved
78 St Mary Street Southampton SO14 1NZ
Change of use from retail (Class A1) to a cafe/restaurant (Class A3) (Part Retrospective).
17/00425/FUL
2017 Approved
73 St Mary Street Southampton SO14 1NW
Change of use from a public house to a Buddhist Centre (Class D1) on ground floor and ret…
16/02213/FUL
Southampton
Planning Authority Score
5/10
Average
#150 of 296 councils
Relevant to this application:
Householder decisions

Southampton ranks #158 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (93%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Southampton decision statistics
Based on MHCLG data, the year to March 2026
90%
Overall approval rate
Above avg (87%) #117 of 296
93%
Householder approved
Above avg (90%) #137 of 296
63%
Decided in 8 weeks
Above avg (63%) #158 of 296
40%
Extended time limit
Below avg (41%) #154 of 296
70%
Minor dwellings approved
50 decided (1-9 homes)
100%
Major dwellings approved
8 decided (10+ homes)
86%
Change of use approved
109 decided
742
Total decisions
72 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings