7 Merton Street Cambridge Cambridgeshire CB3 9JD Data via plota.co.uk
26/00830/HFUL - Householder Works/Extension
Approved
Proposal
Roof extension with rear dormer and rooflight Data via plota.co.uk
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Application progress
✓
Received
3 Mar 2026
✓
Consultation
9 Apr 2026
✓
Approved
6 May 2026
Approved on 6 May 2026 · Delegated Decision · Last checked 9 Jul 2026
Documents 9
Decision & officer reports 1
Statements & assessments 1
Application forms 2
Consultation & comments 1
Other documents 4
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Important details
- Council
- Cambridge
- Application type
- Householder Works/Extension
- Postcode
- CB3 9JD
- Received
- 3 Mar 2026
- Validated
- 3 Mar 2026
- Ward
- Newnham
- Case officer
- Track to view
- Target decision
- 28 Apr 2026
- Decision
- Granted Permission
- Decision date
- 6 May 2026
- Decision level
- Delegated Decision
- Applicant
- Track to view
- Agent
- Twitchett Architect
Consultation & key dates
- Site notice
- 9 Apr 2026
- Press notice
- 18 Mar 2026
- Env. assessment
- No
Historical activity at this location
29 previous applications on record - archival context, not part of the live application.
This property
Previous applications at this address
2025
Approved
S73 to vary conditions 2 (approved drawings) and 3 (obscure glazing) of ref: 25/00419/HFU…
2025
Approved
S73 to vary conditions 2 (approved drawings) and 3 (obscure glazing) of ref: 25/00419/HFU…
2025
Approved
Increase window aperture in dining area, addition of a first floor window to landing and…
2025
Approved
Increase window aperture in dining area, addition of a first floor window to landing and…
Within ~100m
Nearby activity
2025
Approved
21 Merton Street Cambridge Cambridgeshire CB3 9JD
New replacement sliding sash windows to the front elevation and exterior walls repainted.
2025
Approved
21 Merton Street Cambridge Cambridgeshire CB3 9JD
New replacement sliding sash windows to the front elevation and exterior walls repainted.
2025
Approved
37 Eltisley Avenue Cambridge Cambridgeshire CB3 9JQ
Tulip tree in the back garden: fell.
2025
Approved
37 Eltisley Avenue Cambridge Cambridgeshire CB3 9JQ
Tulip tree in the back garden: fell.
2025
Approved
35 Hardwick Street Cambridge Cambridgeshire CB3 9JA
Loft conversion to the existing two-storey terraced dwelling
2025
Approved
35 Hardwick Street Cambridge Cambridgeshire CB3 9JA
Loft conversion to the existing two-storey terraced dwelling
2025
Approved
36 Hardwick Street Cambridge Cambridgeshire CB3 9JA
Loft conversion to rear roof plane including two pitched-roof dormers
2025
Approved
36 Hardwick Street Cambridge Cambridgeshire CB3 9JA
Loft conversion to rear roof plane including two pitched-roof dormers
2025
Approved
18 Eltisley Avenue Cambridge Cambridgeshire CB3 9JG
T1 - Juniper tree (Located in the rear side passage of victorian terraced home) - Remove…
2025
Approved
18 Eltisley Avenue Cambridge Cambridgeshire CB3 9JG
T1 - Juniper tree (Located in the rear side passage of victorian terraced home) - Remove…
2025
Approved
13 Millington Road Cambridge Cambridgeshire CB3 9HW
T1 - Horse Chestnut -Raise crown to 3.5ms over garden only and reduce overhang above by 2…
2025
Approved
13 Millington Road Cambridge Cambridgeshire CB3 9HW
T1 - Horse Chestnut -Raise crown to 3.5ms over garden only and reduce overhang above by 2…
2025
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19 Eltisley Avenue Cambridge Cambridgeshire CB3 9JG
A1 - Apple tree - Safely fell the tree, leaving an 8-foot-high stump. This height may ser…
2025
Approved
19 Eltisley Avenue Cambridge Cambridgeshire CB3 9JG
A1 - Apple tree - Safely fell the tree, leaving an 8-foot-high stump. This height may ser…
2025
Approved
4 The Cenacle Cambridge Cambridgeshire CB3 9JS
T1 - Weeping Silver Birch in rear garden x 4ms - Top and fell as close to ground level as…
2025
Approved
4 The Cenacle Cambridge Cambridgeshire CB3 9JS
T1 - Weeping Silver Birch in rear garden x 4ms - Top and fell as close to ground level as…
2024
Approved
31 Grantchester Street Cambridge Cambridgeshire CB3 9HY
T1 - Norway Maple - Reduce height by approximately 3m down to previous reduction points…
2024
Approved
31 Grantchester Street Cambridge Cambridgeshire CB3 9HY
T1 - Norway Maple - Reduce height by approximately 3m down to previous reduction points…
2024
Withdrawn
26 Grantchester Street Cambridge Cambridgeshire CB3 9HY
Single storey side extension and roof extension incorporating raising ridge height, rear…
2024
Withdrawn
26 Grantchester Street Cambridge Cambridgeshire CB3 9HY
Single storey side extension and roof extension incorporating raising ridge height, rear…
2017
Approved
34 Grantchester Street Cambridge CB3 9HY
Cherry ~ Reduce to previous pruning points, being an overall reduction of 0.75ms; remove…
2017
Approved
5 The Cenacle Cambridge CB3 9JS
Prunus - cut to ground level and remove.
2017
Approved
5 The Cenacle Cambridge CB3 9JS
Silver Birch - reduce three lower branches by approximately 1.5 metres.
2017
Approved
5 The Cenacle Cambridge CB3 9JS
Silver Birch - reduce three lower branches by approximately 1.5 metres.
2017
Approved
5 The Cenacle Cambridge CB3 9JS
Prunus - cut to ground level and remove.
Cambridge
Planning Authority Score
8.2/10
Excellent
#17 of 292 councils
Relevant to this application:
Householder decisions
Cambridge is one of the fastest councils in England for householder decisions, ranking #24 out of 292. Only 26% of applications have the time limit extended, well below the 40% 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 performance
Based on MHCLG data, 2025
91%
Overall approval rate
Above avg (87%) #93 of 292
94%
Householder approved
Above avg (90%) #98 of 292
84%
Decided in 8 weeks
Above avg (64%) #24 of 292
26%
Extended time limit
Below avg (40%) #34 of 292
77%
Minor dwellings approved
87 decided (1-9 homes)
89%
Major dwellings approved
9 decided (10+ homes)
85%
Change of use approved
41 decided
1,034
Total decisions
94 refused in 2025
Track this application
7 Merton Street Cambridge Cambridgeshire CB3 9JD