20 Sunnyside Cambridge Cambridgeshire CB5 8SG Data via plota.co.uk

26/03162/FUL - Full Application Awaiting decision
Change of useExtensions & alterations

Proposal

Erection of a single-storey annex within the rear garden and bike shed, together with associated external works and change of use of existing dwelling and proposed annex to a large 7bed 7-person House in Multiple Occupation (HMO) (sui generis). Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
20 Aug 2026
Decision
Expected by 15 Oct 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 15 Oct 2026, from Cambridge's recent changes of use.

Documents 10

Statements & assessments 5

PDF BIODIVERSITY NET GAIN EXEMPTION STATEMENT Application Survey / Assessment / Statement · 20 Aug 2026 View ↗ PDF DESIGN AND ACCESS STATEMENT Design and Access Statement · 20 Aug 2026 View ↗ PDF FLOOD RISK ASSESSMENT Application Survey / Assessment / Statement · 20 Aug 2026 View ↗ PDF HMO MANAGEMENT STATEMENT Application Survey / Assessment / Statement · 20 Aug 2026 View ↗ PDF PLANNING STATEMENT Application Survey / Assessment / Statement · 20 Aug 2026 View ↗

Application forms 2

PDF APPLICATION FORM - NO PERSONAL INFO Application Information · 20 Aug 2026 View ↗ PDF FEE CALCULATION Application Information · 20 Aug 2026 View ↗

Consultation & comments 1

PDF MAP OF NOTIFIED NEIGHBOURS Neighbour/Consultee Notification List · 24 Aug 2026 View ↗

Other documents 2

PDF ACKNOWLEDGEMENT LETTER Application Officer Correspondence · 24 Aug 2026 View ↗ PDF ATTACHMENT SUMMARY FROM PORTAL Attachment Summary · 20 Aug 2026 View ↗

All documents on the council site ↗

Site constraints 2

Also on the record
Local nature reserve 382 m away: Barnwell Ii; Inside the Cambridge (Cambridge) built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building 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
Cambridge
Application type
Full Application
Postcode
CB5 8SG
Received
20 Aug 2026
Validated
20 Aug 2026
Ward
Abbey
Case officer
Show
Target decision
15 Oct 2026
Applicant
Show
Agent
Space+

Decision outlook

Day 25 of the 56-day target. Cambridge usually decides changes of use by day 56.

Day 2531 days to the 56-day target
56%decided within 8 weeks
92%approved
32decided in the last year

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

Public comments

5comments received
5 objecting

100% object · above the UK average of 75%

24 neighbours consulted · Last counted 10 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
15 Oct 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

2025 Approved
52 The Westering Cambridge Cambridgeshire CB5 8SF
Single storey rear extension
25/00890/HFUL
2025 Approved
52 The Westering Cambridge Cambridgeshire CB5 8SF
Single storey rear extension
25/00890/HFUL
2023 Approved
52 The Westering Cambridge Cambridgeshire CB5 8SF
Hip to gable and rear dormer roof extension and single storey rear extension.
23/03360/HFUL
2023 Approved
52 The Westering Cambridge Cambridgeshire CB5 8SF
Hip to gable and rear dormer roof extension and single storey rear extension.
23/03360/HFUL
2022 Approved
54 The Westering Cambridge Cambridgeshire CB5 8SF
Side and rear roof extension, two storey and single storey front and rear extensions.
22/01616/HFUL
2022 Approved
54 The Westering Cambridge Cambridgeshire CB5 8SF
Side and rear roof extension, two storey and single storey front and rear extensions.
22/01616/HFUL
2020 Approved
47 The Westering Cambridge Cambridgeshire CB5 8SE
Single storey rear extension
20/05383/PRI01A
2016 Approved
Land Off Barnwell Road (Marshall Aerospace) Peverel Road Cambridge Cambridgeshire
Erection of B1 Use Class building for use of Marshall Aerospace and Defence Group, car an…
16/1566/FUL
2016 Approved
Land Off Barnwell Road (Marshall Aerospace) Peverel Road Cambridge Cambridgeshire
Erection of B1 Use Class building for use of Marshall Aerospace and Defence Group, car an…
16/1566/FUL
2017 Approved
1 Sunnyside Cambridge CB5 8SG
Erection of two storey dwelling adjoining 1 Sunnyside following the demolition of existin…
17/0606/FUL
2017 Approved
1 Sunnyside Cambridge CB5 8SG
Erection of two storey dwelling adjoining 1 Sunnyside following the demolition of existin…
17/0606/FUL
2016 Refused
1 Sunnyside Cambridge CB5 8SG
Conversion of 3 bed dwellinghouse to 4 1bed apartments following a single and two storey…
16/1432/FUL
2016 Refused
1 Sunnyside Cambridge CB5 8SG
Conversion of 3 bed dwellinghouse to 4 1bed apartments following a single and two storey…
16/1432/FUL
2016 Approved
56 The Westering Cambridge Cambridgeshire CB5 8SF
Part two storey part single storey side extension
16/0971/FUL
2016 Approved
56 The Westering Cambridge Cambridgeshire CB5 8SF
Part two storey part single storey side extension
16/0971/FUL
2016 Approved
43 The Westering Cambridge Cambridgeshire CB5 8SE
Single storey rear extension, 4.7m from rear wall of original dwelling and eaves 2.5m abo…
16/1199/GPE
2016 Approved
43 The Westering Cambridge Cambridgeshire CB5 8SE
Single storey rear extension, 4.7m from rear wall of original dwelling and eaves 2.5m abo…
16/1199/GPE
2016 Approved
58 The Westering Cambridge Cambridgeshire CB5 8SF
Single storey side and rear extension
16/0700/FUL
2016 Approved
58 The Westering Cambridge Cambridgeshire CB5 8SF
Single storey side and rear extension
16/0700/FUL
2016 Withdrawn
1 Sunnyside Cambridge Cambridgeshire CB5 8SG
Conversion of 3 bed dwelling house to 1x 1 bed flat and 3x 2 bed flats following two stor…
16/0319/FUL
2016 Withdrawn
1 Sunnyside Cambridge Cambridgeshire CB5 8SG
Conversion of 3 bed dwelling house to 1x 1 bed flat and 3x 2 bed flats following two stor…
16/0319/FUL
2016 Approved
53 The Westering Cambridge Cambridgeshire CB5 8SE
Single storey rear extension, side and rear roof extension, insulation and smooth render…
15/2386/FUL
2016 Approved
53 The Westering Cambridge Cambridgeshire CB5 8SE
Single storey rear extension, side and rear roof extension, insulation and smooth render…
15/2386/FUL
2016 Approved
Land At Former 4 Sunnyside Cambridge Cambridgeshire CB5 8SG
Section 73 application to vary condition 2 of permission 14/0466/FUL to permit revised pa…
16/0107/S73
2016 Approved
Land At Former 4 Sunnyside Cambridge Cambridgeshire CB5 8SG
Section 73 application to vary condition 2 of permission 14/0466/FUL to permit revised pa…
16/0107/S73
Cambridge
Planning Authority Score
8.3/10
Excellent
#18 of 296 councils
Relevant to this application:
Change of use

Cambridge is one of the fastest councils in England for householder decisions, ranking #21 out of 296. Only 26% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).

Among the fastest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Cambridge decision statistics
Based on MHCLG data, the year to March 2026
90%
Overall approval rate
Above avg (87%) #108 of 296
94%
Householder approved
Above avg (90%) #100 of 296
86%
Decided in 8 weeks
Above avg (63%) #21 of 296
26%
Extended time limit
Below avg (41%) #34 of 296
74%
Minor dwellings approved
86 decided (1-9 homes)
80%
Major dwellings approved
5 decided (10+ homes)
80%
Change of use approved
41 decided
1,014
Total decisions
100 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings