Islip House Mildred Avenue Borehamwood Hertfordshire WD6 2DH Data via plota.co.uk
Proposal
Change of use of existing incidental outbuilding to Pilates studio. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicted a decision around 9 Oct 2026; it is now day 73.
Documents 7
Statements & assessments 1
Plans & drawings 3
Application forms 1
Site constraints 1
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 £1,300,000 in November 2021. Detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in April 2021, the latest held for this property. The building may have changed since. View the certificate
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Important details
Decision outlook
Day 73, past the statutory target. 88% of changes of use in Hertsmere are decided within thirteen weeks, which runs to 27 Oct 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 7 Oct 2026.
Plota live figures for changes of use decided by Hertsmere in the last twelve months, from validation. Hertsmere decision record →
Public comments
13 neighbours consulted · Last counted 7 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15117909
- Planning Portal ref
- PP-15117909
- Neighbours
- 11 Aug 2026
- Consultation
- 11 Aug 2026
- Comments by
- 2 Sept 2026
- Statutory expiry
- 22 Sept 2026
- Env. assessment
- No
Historical activity at this location
29 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
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%).
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
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.
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Islip House Mildred Avenue Borehamwood Hertfordshire WD6 2DH
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The consultation period closed on 2 Sept 2026.