12 Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH Data via plota.co.uk

26/01191/FHA - Full Householder Application Approved
Extensions & alterations

Proposal

Single storey rear extension Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
28 May 2026
✓
Consultation
1 Jun 2026
✓
Approved
17 Jul 2026

Approved on 17 Jul 2026 · Delegated Decision · Last checked 26 Jul 2026

Documents 12

Decision & officer reports 2

PDF Fha - grant (decision notice) Decision Notice · 17 Jul 2026 View ↗ PDF Upload delegated report Delegated Report · 17 Jul 2026 View ↗

Statements & assessments 2

PDF Planning and heritage statement Amended Plans and Drawings · 17 Jul 2026 View ↗ PDF Planning and heritage statement 12 lr Design & Access Statement · 27 May 2026 View ↗

Plans & drawings 6

PDF Existing plans and elevations Amended Plans and Drawings · 17 Jul 2026 View ↗ PDF Proposed plans and elevations Amended Plans and Drawings · 17 Jul 2026 View ↗ PDF Existing floorplans and elevations Existing Plans · 27 May 2026 View ↗ PDF Proposed floor plans and elevations Proposed Plan · 27 May 2026 View ↗ PDF Location plan Location Plan · 27 May 2026 View ↗ PDF Existing and proposed Block Plan of the Site · 27 May 2026 View ↗

Application forms 1

PDF Applicationformredacted Application Form Redacted · 27 May 2026 View ↗

Other documents 1

PDF Existing site photos Photos Online · 27 May 2026 View ↗

All documents on the council site ↗

Site constraints 7

Grade II listed: 11 and 12, Leighton Buzzard Road (A4146)
List entry 1173786 · 4 m away · 9 more listed buildings within 150 m (9 Grade II)
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 the other 9 with distances
Historic England ↗
Chilterns National Landscape
Great weight to conserving the landscape; major development restricted.
Previously an area of outstanding natural beauty, which is still the designation in law. Since 2023 authorities must seek to further its purpose, not merely have regard to it.
Water End 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.
Agricultural land, grade 2
Best and most versatile land (grades 1, 2 and 3a). Source: the Predictive Agricultural Land Classification Map (Defra and Natural England, 2025; the Welsh Government's Predictive ALC Map 2 in Wales), a model rather than a site survey. Natural England's Provisional ALC map (1:250,000, 1970s), which most planning maps still show, had this area as grade 4. The predicted grade is Defra's current estimate; only a site survey settles it.
Where development of farmland is needed, policy prefers poorer land over the best and most versatile (grades 1, 2 and 3a). Three sources: Natural England's post-1988 field surveys, which are definitive where they exist; the Defra predictive map for England (2025) and the Welsh Government predictive map, modelled from the soil map with 3a and 3b split; and the 1970s provisional map, which planners and other services still show, coarser and with grade 3 undivided. Where the provisional and predicted grades disagree, treat the predicted grade as the current estimate and expect an application to carry its own survey.
Habitat network: Network Enhancement Zone 1
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Radon affected area, class 2; Priority habitat 14 m away: Lowland meadows.
Not affected
Outside flood zones 2 and 3 · Not green belt · 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.

Sales history 2

Last sold for £455,000 in September 2018. Semi-detached house, freehold.

17 September 2018£455,000
31 July 1996£110,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

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Important details

Council
Dacorum
Application type
Full Householder Application
Postcode
HP1 3BH
Received
28 May 2026
Validated
28 May 2026
Ward
Watling
Parish
Great Gaddesden Parish Council
Case officer
Show
Decision
Grant Permission/Consent
Decision date
17 Jul 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Aragon Land & Planning Ltd

How this decision compares

Decided in 50 days from validation, about the council's usual 50 days. Approved, as 90% of extensions here are.

87%decided within 8 weeks
90%approved
684decided in the last year

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

Consultation & key dates

Alt. reference
PP-14932029
Planning Portal ref
PP-14932029
Neighbours
1 Jun 2026
Consultation
1 Jun 2026
Comments by
17 Jul 2026
Site or press notice
26 Jun 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

2024 Approved
Troutbeck Cottage 18 - 19 Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Fell tree.
24/02826/TCA
2024 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Works to trees and felling of T8 and T10
24/02721/TCA
2023 Approved
Troutbeck Cottage 18 - 19 Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Works to tree
23/00910/TCA
2023 Approved
Troutbeck Cottage 18 - 19 Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Works to tree
23/00910/TCA
2023 Approved
Saddlers Cottage Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Fell Trees.
23/00446/TCA
2023 Approved
Saddlers Cottage Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Fell Trees.
23/00446/TCA
2022 Approved
16 - 17 Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Fell Cedar Tree.
22/00718/TCA
2022 Approved
16 - 17 Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Fell Cedar Tree.
22/00718/TCA
2020 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Fell Leylandii and Cypress Trees
20/02103/TCA
2020 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Fell Leylandii and Cypress Trees
20/02103/TCA
2020 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Remove top two thirds of 3 Lylandi and a 4th that needs removal to trunk as at 45 degree…
20/00578/TCA
2020 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Remove top two thirds of 3 Lylandi and a 4th that needs removal to trunk as at 45 degree…
20/00578/TCA
2019 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Demolition of existing garage & adjoining greenhouse. Replacement of garage with oak frame
4/00933/19/FHA
2019 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Demolition of existing garage & adjoining greenhouse. Replacement of garage with oak frame
4/00934/19/LBC
2019 Approved
Oak Cottage Water End Leighton Buzzard Road Water End
Work to trees
4/00420/19/TCA
2018 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Revisions to design of previously approved single storey rear extension and former kitche…
4/01345/18/LBC
2017 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Works to trees
4/03337/17/TCA
2017 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Rear extension to kitchen and rebuilding roof above
4/01649/17/LBC
2017 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead Hertfordshire HP1 3BH
Lowering of existing floor in dining room by 150mm to match floor level of kitchen. remov…
4/00748/17/LBC
2016 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Demolition of rear entrance porch and existing extension. Single storey rear extensions…
4/00638/16/FHA
2016 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Demolition of rear entrance porch and existing extension. Single storey rear extensions…
4/00638/16/FHA
2016 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Demolition of rear entrance porch and existing extension. Single storey rear extensions…
4/00639/16/LBC
2016 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Demolition of rear entrance porch and existing extension. Single storey rear extensions…
4/00639/16/LBC
2019 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Details required by condition 2 (materials) attached to planning permission 4/00933/19/fh…
4/01673/19/DRC
2017 Approved
Oak Cottage Leighton Buzzard Road Water End Hemel Hempstead HP1 3BH
Details as required by condition 2 (paint removal process) of listed building consent 4/0…
4/01507/17/DRC
Dacorum
Planning Authority Score
7.3/10
Good
#51 of 296 councils
Relevant to this application:
Householder decisions

Dacorum is faster than most councils at deciding householder applications, ranking #50 out of 296. Only 22% 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 (91%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Dacorum decision statistics
Based on MHCLG data, the year to March 2026
88%
Overall approval rate
Above avg (87%) #150 of 296
91%
Householder approved
Above avg (90%) #171 of 296
78%
Decided in 8 weeks
Above avg (63%) #50 of 296
22%
Extended time limit
Below avg (41%) #22 of 296
76%
Minor dwellings approved
127 decided (1-9 homes)
79%
Major dwellings approved
14 decided (10+ homes)
71%
Change of use approved
21 decided
1,130
Total decisions
132 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use