42 Semilong Road Northampton NN2 6BU Data via plota.co.uk

2026/2899/FULL - Full Planning Permission 4 - Consultations Despatched (1-10)
DemolitionExtensions & alterations

Proposal

Demolition of four garages and replaced with a single storey rear extension forming a machine room. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
22 Jul 2026
Decision
Expected by 16 Sept 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 10 Nov 2026, from West Northamptonshire's recent full applications. Comments are open until 21 Sept 2026.

Comment on this application ↗

Documents 18

Plans & drawings 4

IMG Plan - 3D Visualisation Document · 3 Sept 2026 View ↗ PDF Plan - Elevations (Existing) Document · 3 Jul 2026 View ↗ PDF Plan - Floor (Existing) Document · 3 Jul 2026 View ↗ PDF Plan - Location Plan Document · 3 Jul 2026 View ↗

Application forms 2

PDF CIL Form 1 Additional Information Document · 3 Jul 2026 View ↗ PDF Application Form (PUBLIC) Document · 3 Jul 2026 View ↗

Consultation & comments 2

PDF Response - Consultees Document · 17 Aug 2026 View ↗ PDF Response - Consultees Document · 17 Aug 2026 View ↗

Other documents 10

IMG Photos Document · 3 Sept 2026 View ↗ PDF Revised Plans Document · 3 Sept 2026 View ↗ PDF Application Correspondence Document · 4 Aug 2026 View ↗ PDF Acknowledgement Document · 27 Jul 2026 View ↗ PDF Photos Document · 22 Jul 2026 View ↗ PDF Photos Document · 22 Jul 2026 View ↗ PDF Photos Document · 22 Jul 2026 View ↗ PDF Superseded Document · 3 Jul 2026 View ↗ PDF Superseded Document · 3 Jul 2026 View ↗ PDF Superseded Document · 3 Jul 2026 View ↗

All documents on the council site ↗

Site constraints 2

Also on the record
Nature improvement area: Nene Valley; Inside the Northampton 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
West Northamptonshire
Application type
Full Planning Permission
Postcode
NN2 6BU
Received
22 Jul 2026
Validated
22 Jul 2026
Ward
Kingsley and Semilong Ward
Parish
Northampton Town Council
Target decision
16 Sept 2026
Decision level
Delegated

Decision outlook

Day 54 of the 56-day target. West Northamptonshire usually decides full applications by day 111.

Day 5457 days to the predicted decision (day 111)
4%decided within 8 weeks
90%approved
815decided in the last year

Plota live figures for full applications decided by West Northamptonshire in the last twelve months, from validation. West Northamptonshire decision record →

Consultation & key dates

Comments by
21 Sept 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
14 Marriott Street Northampton NN2 6AW
Existing rear boundary garden wall to be replaced with 1.8M close board timber fence, wit…
2025/4283/FULL
2025 Approved
2 Marriott Street, Northampton, NN2 6AW
Conversion of existing 7 person House of Multiple Occupation (HMO) to 11 person HMO (Sui…
2025/2322/FULL
2025 Approved
Bishops House Marian Suite Marriott Street Northampton NN2 6AW
Change of use from a Scout Hut (Mixed Use) as an office (Use Class E)
2025/1599/FULL
2022 Approved
46 Semilong Road, Northampton, NN2 6BU
Change of Use from Retail (Use Class E) to Cafe/Restaurant and Takeaway (Sui Generis), in…
WNN/2022/0354
2021 Approved
2 Marriott Street Northampton Northamptonshire NN2 6AW
Conversion of existing 7 bed house in multple occupation into 4no flats
WNN/2021/0973
2021 Approved
Flat A, 39 Semilong Road, Northampton, NN2 6BT
New entrance to front elevation of basement flat (Flat A)
WNN/2021/0654
2021 Approved
21 Marriott Street, Northampton, NN2 6AW
T1 Pine - Fell and removal of stump
WNN/2021/0082
2020 Approved
55 Semilong Road Northampton Northamptonshire NN2 6BT
Conversion of existing dwelling into 3no flats, including new door and external steps fro…
N/2020/1538
2020 Approved
41B Semilong Road Northampton Northamptonshire NN2 6BT
Modification of front patio space for provision of steps and installation of new front do…
N/2020/1350
2020 Approved
Elstow House 25 Marriott Street Northampton Northamptonshire NN2 6AW
Change of Use from 9no bedroom House in Multiple Occupation (Sui Generis) to 11no bedroom…
N/2020/0446
2020 Approved
Bishops House, Marriott Street, Northampton, NN2 6AW
Bishops house: G1 Row of lime trees that border Marriott street - raise crowns to 4.5m Bi…
N/2020/0709
2019 Approved
40 Semilong Road, Northampton, NN2 6BT
Conversion of existing ground floor shop and first floor into dwellinghouse
N/2019/0025
2018 Approved
Elstow House, 25 Marriott Street, Northampton, NN2 6AW
Change of Use from House in Multiple Occupation (Use Class C4) into 4no self contained ap…
N/2018/1382
2018 Approved
70 Semilong Road, Northampton, NN2 6BX
Change of Use from House in Multiple Occupation (Use Class C4) for 5 occupants to 3no one…
N/2018/1432
2018 Refused
40 Semilong Road, Northampton, NN2 6BT
Change of Use of Ground Floor Shop (Use Class A1) and First Floor Flat (Use Class C3) int…
N/2018/1477
2017 Approved
Bishops House , Marriott Street, Northampton, NN2 6AW
T1 Lime - Pollard to restrict root growth T2 Lime - Pollard to restrict root growth
N/2017/1337
2017 Approved
Bishops House , Marriott Street, Northampton, NN2 6AW
T1 - Holly Hedge - Top by one third T2 - Hollies - Top by half & trim to form hedge T3…
N/2017/0268
2016 Approved
22 Marriott Street, Northampton, NN2 6AW
Change of use to dwelling (Use Class C3a) to supported accommodation (Use Class C3b)
N/2016/1338
2016 Approved
Bishops House , Marriott Street, Northampton, NN2 6AW
Works to trees T1 - Fruit Tree ,T2 - Laurel & T3 - Holly
N/2016/1303
2016 Approved
Semilong Post Office , 32 Semilong Road, Northampton, NN2 6BT
Conversion of post office (Use Class A1) to dwelling (Use Class C3) and erection of rear…
N/2016/0775
2016 Withdrawn
22 Marriott Street, Northampton, NN2 6AW
Change of use from dwelling (Use class C3) to house in multiple occupation (Use class C4)…
N/2016/0904
2016 Refused
28 Semilong Road, Northampton, NN2 6BT
Detached single storey dwelling to rear of 28 Semilong Road
N/2016/0885
2016 Withdrawn
22 Marriott Street, Northampton, NN2 6AW
Change of use from dwelling (use class C3) to house in multiple occupancy (use class C4)…
N/2016/0542
2016 Refused
28 Semilong Road, Northampton, NN2 6BT
Erect detached dwelling.
N/2016/0135
2024 Refused
Bishops House Marriott Street Northampton NN2 6AW
Lawful Development Certificate for existing use of an office (The Marion Suite) formally…
2024/4676/LDE
West Northamptonshire
Planning Authority Score
1.7/10
Poor
#280 of 296 councils
Relevant to this application:
Householder decisions

West Northamptonshire is one of the slowest councils in England for householder decisions, ranking #295 out of 296. The council extends the time limit on 79% of applications - one of the highest rates in England. Expect your application to take longer than the standard deadline. Householder applications are slightly more likely to be approved here (93%) than the national average (90%).

Among the slowest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
West Northamptonshire decision statistics
Based on MHCLG data, the year to March 2026
90%
Overall approval rate
Above avg (87%) #123 of 296
93%
Householder approved
Above avg (90%) #144 of 296
18%
Decided in 8 weeks
Below avg (63%) #295 of 296
79%
Extended time limit
Above avg (41%) #295 of 296
81%
Minor dwellings approved
170 decided (1-9 homes)
83%
Major dwellings approved
24 decided (10+ homes)
86%
Change of use approved
207 decided
1,832
Total decisions
179 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings