Planning application
26/01399/LBC
3 High Street Windsor SL4 1LD
Proposal
Consent for the change of use of second floor from Class E Offices to Class C3 residential to provide two self-contained apartments, works include, replacement of second floor rear windows and double door with slim profile double glazing, internally it includes new subdivisions, new services for bathrooms, and installation of new secondary glazing.
As published by the council, reference 26/01399/LBC
Timeline
Dates from the published record
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8 Jun 2026
Received by Windsor and Maidenhead
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16 Jun 2026
Validated
Checked as complete and ready for consideration.
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25 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Windsor and Maidenhead for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
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26/01398/FULL Awaiting decision
3 High Street Windsor SL4 1LD
Change of use of second floor from Class E Offices to Class C3 residential to provide two self-contained apartments.
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26/01426/FULL Awaiting decision
7 High Street Windsor SL4 1LD
Change of use of part of the basement, first and second floor from office (Class E) to mixed use compromising Sui Generis (Beauty Salon) and ancillary uses.
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26/01271/FULL Awaiting decision
Stores Rear of 6 High Street Windsor
Change of use of the existing building, from Commercial Office (Use Class E) to 2 x serviced apartments (Sui Generis), including internal reconfigurations and external conservation-style roof lights.
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22/02649/FULL Refused
9A High Street Windsor
Two storey rear extension and alterations to existing ground floor to create x2 additional residential dwellings, new access to basement, alterations to fenestration and to existing car park spaces following demolition of existing two storey rear extension.
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22/02650/LBC Refused
9A High Street Windsor
Consent for a two storey rear extension and alterations to existing ground floor to create x2 additional residential dwellings, internal alterations to basement, ground, first and second floor, new access to basement, alterations to fenestration and to existing car park spaces following demolition of existing two storey rear extension.
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22/02352/FULL Refused
Denning Legal 10A High Street Windsor SL4 1LD
Internal alterations on the first floor to facilitate the change of use of the existing office to residential to create x1 flat, x2 new rooflights and alterations to fenestration.
Other heritage and listed buildings applications
In Windsor and Maidenhead
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26/01805/LBC Awaiting decision
CAFFÈ NERO Unit 58-59 Windsor Royal Railway Station Jubilee Arch Windsor SL4 1PJ
Consent for the demolition of the existing free-standing Caffe Nero unit.
-
26/01403/LBC Granted
Church House High Street Hurley Maidenhead SL6 5NB
Consent for the installation of 1no. EV charger to the east wall of the lean to attached to the north elevation of the main house.
-
26/01420/LBC Granted
12 High Street Windsor SL4 1LT
Consent for 1no. accessibility ramp to front entrance.
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26/00971/LBC Granted
King & Castle 15 - 17 Thames Street Windsor SL4 1PL
Consent for internal works to the lower ground floor bar, ground floor bar and external garden bar to include upgrades to glass storage, lighting, and dispense systems and the replacement of a condenser unit at basement level.
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26/01736/DEM Awaiting decision
26 Lower Village Road Ascot SL5 7AU
Prior notification for the demolition of the existing detached garage.