78 Mount Grace Road Potters Bar Hertfordshire EN6 1QZ Data via plota.co.uk

26/0913/HSE Awaiting decision
Extensions & alterations

Proposal

Construction of single storey rear extension and patio alterations (part-retrospective). Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
3 Jul 2026
✓
Consultation
10 Jul 2026
Decision
Expected by 28 Aug 2026

As of 22 Aug 2026, the council is no longer showing this application on their planning portal. It may have been withdrawn or re-listed under a different reference. We've stopped checking it for updates.

Documents

View the documents on the council's website ↗

Site constraints 1

Also on the record
Inside the Potters Bar built-up area.
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 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 £1,050,000 in March 2025. Detached house, freehold.

18 March 2025£1,050,000
30 June 1997£205,000

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

Building

Floor area154 m² (1,658 sq ft)
Energy ratingD (66 out of 100), could reach C
PropertySemi-detached house, 6 habitable rooms
Built1983 to 1990
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, insulated (assumed)

From the energy performance certificate lodged in July 2024, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Other new applications on this street

17 Sept 2026Pending

24 Mount Grace Road Potters Bar Hertfordshire EN6 1RD

Construction of a single-storey outbuilding within the rear garden to be used fo...

26/1348/CLP
13 Aug 2026Pending

19 Mount Grace Road Potters Bar Hertfordshire EN6 1RD

Application for approval of details reserved by condition 7 (Climate Change and ...

26/1160/DOC

Nearby new applications

1 Oct 2026Pending

Telecommunications Equipment Opposite 11 Darkes Lane Potters Bar Hertfordshire

Notification of telecommunications works.

26/1419/TELENQ
23 Sept 2026Pending

138 Darkes Lane Potters Bar Hertfordshire EN6 1AF

Change of use from Use Class E(a) Retail to E(b) Restaurant - to allow for the s...

26/1372/CLP
22 Sept 2026Pending

6 Heath Drive Potters Bar Hertfordshire EN6 1EH

Replacement of existing windows.

26/1368/HSE
17 Sept 2026Pending

24 Mount Grace Road Potters Bar Hertfordshire EN6 1RD

Construction of a single-storey outbuilding within the rear garden to be used fo...

26/1348/CLP
7 Sept 2026Pending

111 Church Road Potters Bar Hertfordshire EN6 1EY

Conversion of loft to habitable space to include rear dormer, 3x front rooflight...

26/1300/CLP
25 Aug 2026Approved

43 Ladbrooke Drive Potters Bar Hertfordshire EN6 1QR

Single storey rear extension. Depth: 6m, Height: 4m, Eaves: 2.47m.

26/1224/PD42

Important details

Council
Hertsmere
Postcode
EN6 1QZ
Received
3 Jul 2026
Validated
3 Jul 2026
Target decision
28 Aug 2026

Decision outlook

Day 98, past the statutory target. 94% of extensions in Hertsmere are decided within thirteen weeks; extensions of time are common, and the council need not decide on the day. Last seen undecided on 21 Aug 2026.

Day 9842 days past 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.

3 neighbours consulted · Last counted 21 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15049054
Planning Portal ref
PP-15049054
Neighbours
10 Jul 2026
Consultation
10 Jul 2026
Comments by
31 Jul 2026
Statutory expiry
28 Aug 2026

Historical activity at this location

20 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025 Approved
Conversion of garage to habitable space to include replacement of garage door with window…
25/0509/HSE
2025 Approved
Conversion of garage to habitable space to include replacement of garage door with window…
25/0509/HSE
Within ~100m

Nearby activity

2024 Approved
21 Billy Lows Lane Potters Bar Hertfordshire EN6 1UU
Conversion of loft to habitable space with hip to gable roof alterations to include front…
24/0078/HSE
2023 Approved
62 Mount Grace Road Potters Bar Hertfordshire EN6 1QZ
Construction of an outbuilding with pitched roof and 4x roof lights to rear garden, to be…
23/0132/CLP
2023 Approved
62 Mount Grace Road Potters Bar Hertfordshire EN6 1QZ
Construction of an outbuilding with pitched roof and 4x roof lights to rear garden, to be…
23/0132/CLP
2022 Refused
62 Mount Grace Road Potters Bar Hertfordshire EN6 1QZ
Construction of an outbuilding with pitched roof and 4x roof lights to rear garden, to be…
22/1898/CLP
2022 Refused
62 Mount Grace Road Potters Bar Hertfordshire EN6 1QZ
Construction of an outbuilding with pitched roof and 4x roof lights to rear garden, to be…
22/1898/CLP
2021 Approved
76 Mount Grace Road Potters Bar Hertfordshire EN6 1QZ
Single storey rear extension with 2 rooflights. Part conversion of garage to habitable ro…
21/2164/HSE
2021 Approved
76 Mount Grace Road Potters Bar Hertfordshire EN6 1QZ
Single storey rear extension with 2 rooflights. Part conversion of garage to habitable ro…
21/2164/HSE
2018 Approved
Mount Grace School Church Road Potters Bar Hertfordshire EN6 1EZ
Retrospective application of the installation of lighting bollards.
18/0204/FUL
2017 Approved
Mount Grace School Church Road Potters Bar Hertfordshire EN6 1EZ
Application for approval of details reserved by conditions 2 (materials - hardstanding)…
17/1337/DOC
2017 Approved
80 Mount Grace Road Potters Bar Hertfordshire EN6 1QZ
Erection of first floor front extension; Single storey rear extension and loft conversion…
17/0736/HSE
2017 Approved
Mount Grace School Church Road Potters Bar Hertfordshire EN6 1EZ
Application for approval of details reserved by conditions 2 (materials - hardstanding)…
17/0809/DOC
2017 Approved
37 Billy Lows Lane Potters Bar Hertfordshire EN6 1UX
Erection of first floor rear extension; new side dormer in roof and one additional side r…
17/0498/HSE
2016 Approved
Mount Grace School Church Road Potters Bar Hertfordshire EN6 1EZ
Removal of existing chain link fence and gate in Mount Grace Road and removal of existing…
16/2070/FUL
2016 Approved
Mount Grace School Church Road Potters Bar Hertfordshire EN6 1EZ
Removal of existing chain link fence and gate in Mount Grace Road and removal of existing…
16/2070/FUL
2016 Approved
29 Billy Lows Lane Potters Bar Hertfordshire EN6 1UX
Part single part two storey rear extension, first floor side extension and partial conver…
16/1456/HSE
2016 Approved
29 Billy Lows Lane Potters Bar Hertfordshire EN6 1UX
Part single part two storey rear extension, first floor side extension and partial conver…
16/1456/HSE
2016 Refused
80 Mount Grace Road Potters Bar Hertfordshire EN6 1QZ
First floor side extension. Erection of ground floor rear extension. Conversion of loft i…
16/0299/HSE
2016 Refused
80 Mount Grace Road Potters Bar Hertfordshire EN6 1QZ
First floor side extension. Erection of ground floor rear extension. Conversion of loft i…
16/0299/HSE
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

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

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.