Barn Cottage Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY Data via plota.co.uk

26/1332/HSE - Householder Application Awaiting decision
Extensions & alterations

Proposal

Erection of 2x pergolas within side and rear amenity space and insertion of 1x conservation rooflight to existing entrance porch roof. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
14 Sept 2026
✓
Consultation
22 Sept 2026
Decision
Expected by 9 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 8 Nov 2026, from Hertsmere's recent extensions.

Comments are open until 13 Oct 2026

Comment on this application ↗

Documents 9

Statements & assessments 1

PDF Design and access statement Supporting Documents · 14 Sept 2026 View ↗

Plans & drawings 7

PDF 322/26/103 Existing elevations 2 of 2 Drawing/Plans · 14 Sept 2026 View ↗ PDF 322/26/106 Proposed elevations 2 of 2 Drawing/Plans · 14 Sept 2026 View ↗ PDF 322/26/105 Proposed elevations 1 of 2 Drawing/Plans · 14 Sept 2026 View ↗ PDF 322/26/104 Proposed ground floor and roof plan Drawing/Plans · 14 Sept 2026 View ↗ PDF 322/26/101 Existing first floor and roof plan Drawing/Plans · 14 Sept 2026 View ↗ PDF 322/26/102 Existing elevations 1 of 2 Drawing/Plans · 14 Sept 2026 View ↗ PDF 322/26/100 Existing ground floor plan, site location plan and proposed site / roof plan Drawing/Plans · 14 Sept 2026 View ↗

Application forms 1

PDF Applicationformredacted Application Form · 14 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 6

Green belt: London
Inappropriate development needs very special circumstances.
Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.
Read the government guidance ↗
Letchmore Heath 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.
Council document ↗
Also on the record
1 listed building within 150 m; Radon affected area, class 2; Inside the Letchmore Heath built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 2, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) 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.

Building

Floor area204 m² (2,196 sq ft)
Energy ratingE (54 out of 100), could reach B
PropertySemi-detached house, 7 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in June 2023, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Hertsmere
Application type
Householder Application
Postcode
WD25 8DY
Received
14 Sept 2026
Validated
14 Sept 2026
Ward
Aldenham West
Parish
Aldenham Parish
Case officer
Show
Target decision
9 Nov 2026
Applicant
Show
Agent
JDB DesignLimited

Decision outlook

Day 25 of the 56-day target. Hertsmere usually decides extensions by day 55.

Day 2531 days to the 56-day target
70%decided within 8 weeks
86%approved
475decided in the last year

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

Public comments

No public comments yet.

11 neighbours consulted · Last counted 5 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15205002
Planning Portal ref
PP-15205002
Neighbours
22 Sept 2026
Consultation
22 Sept 2026
Comments by
13 Oct 2026
Statutory expiry
9 Nov 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
The Elms Grange Lane Letchmore Heath Watford Hertfordshire WD25 8EA
Demolition of existing rear extension. Construction of part single, part two storey rear…
25/0419/HSE
2025 Approved
The Elms Grange Lane Letchmore Heath Watford Hertfordshire WD25 8EA
Demolition of existing rear extension. Construction of part single, part two storey rear…
25/0419/HSE
2025 Approved
School Lodge Grange Lane Letchmore Heath Watford Hertfordshire WD25 8EA
Installation of dormer window to front elevation.
25/0278/HSE
2025 Approved
School Lodge Grange Lane Letchmore Heath Watford Hertfordshire WD25 8EA
Installation of dormer window to front elevation.
25/0278/HSE
2024 Approved
Memorial Hall Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
Replacement of 6x side windows. (Revised application)
24/0041/FUL
2024 Approved
The Barn Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
G1 3no BEECH. Prune to retain 'beehive' shape. To maintain topiary type form.
24/0712/TRC
2024
The Old Post Office Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
Retrospective application for change of use of residential dwelling to guest accommodatio…
24/0487/FUL
2023 Withdrawn
Aldenham War Memorial Hall Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
Replacement windows to side and rear elevations.
23/0892/FUL
2023 Withdrawn
Aldenham War Memorial Hall Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
Replacement windows to side and rear elevations.
23/0892/FUL
2022 Approved
Letchmore House The Green Letchmore Heath Watford Hertfordshire WD25 8ES
Retention of existing 3ft high trellis on top of existing wall. Retrospective application.
22/1387/HSE
2022 Approved
Letchmore House The Green Letchmore Heath Watford Hertfordshire WD25 8ES
Retention of existing 3ft high trellis on top of existing wall. Retrospective application.
22/1387/HSE
2022 Approved
Letchmore House The Green Letchmore Heath Watford Hertfordshire WD25 8ES
Retention of existing 2ft high trellis panel on top of existing fence (retrospective appl…
22/0790/HSE
2022 Approved
Letchmore House The Green Letchmore Heath Watford Hertfordshire WD25 8ES
Retention of existing 2ft high trellis panel on top of existing fence (retrospective appl…
22/0790/HSE
2022 Approved
Millfield House Grange Lane Letchmore Heath Watford Hertfordshire WD25 8EA
T1 BEECH. Reduce NW section by 2-2.5m and up to 14m above ground level. (19/1333/TPO cons…
22/0619/TPO
2022 Approved
Millfield House Grange Lane Letchmore Heath Watford Hertfordshire WD25 8EA
T1 BEECH. Reduce NW section by 2-2.5m and up to 14m above ground level. (19/1333/TPO cons…
22/0619/TPO
2022 Approved
The Barn Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
G1 3no. BEECH. Prune to retain 'beehive' shape. To maintain topiary type form
22/0232/TRC
2022 Approved
The Barn Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
G1 3no. BEECH. Prune to retain 'beehive' shape. To maintain topiary type form
22/0232/TRC
2021 Approved
White Cottage Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
Replacement of existing outbuilding thatched roof with slate tiled roof.
21/1769/HSE
2021 Approved
White Cottage Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
Replacement of existing outbuilding thatched roof with slate tiled roof.
21/1769/HSE
2020 Approved
Institute Of Grocery Distribution Grange Lane Letchmore Heath Watford Hertfordshire WD25 8GD
Removal of existing chimney stack.
20/1937/FUL
2016 Approved
The Barn Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
Erection of brick rear garden wall.
16/1207/HSE
2016 Approved
The Barn Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
Erection of greenhouse
16/1269/HSE
2016 Approved
The Barn Grange Lane Letchmore Heath Watford Hertfordshire WD25 8DY
Erection of greenhouse
16/1269/HSE
2016 Approved
Institute Of Grocery Distribution Grange Lane Letchmore Heath Watford Hertfordshire WD25 8GD
Construction of part single part 2 storey rear extension to include glass conservatory di…
16/0355/FUL
2016 Approved
Institute Of Grocery Distribution Grange Lane Letchmore Heath Watford Hertfordshire WD25 8GD
Construction of part single part 2 storey rear extension to include glass conservatory di…
16/0355/FUL
Hertsmere
Planning Authority Score
3.3/10
Poor
#225 of 296 councils
Relevant to this application:
Householder decisions

Hertsmere is slower than most councils at deciding householder applications, ranking #243 out of 296. 55% of applications have the time limit extended, above the 41% national average. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).

Slower than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Hertsmere decision statistics
Based on MHCLG data, the year to March 2026
93%
Overall approval rate
Above avg (87%) #57 of 296
94%
Householder approved
Above avg (90%) #108 of 296
49%
Decided in 8 weeks
Below avg (63%) #243 of 296
55%
Extended time limit
Above avg (41%) #249 of 296
84%
Minor dwellings approved
102 decided (1-9 homes)
75%
Major dwellings approved
8 decided (10+ homes)
89%
Change of use approved
27 decided
742
Total decisions
55 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.