7, 9, Byron House, St James's Street, SW1A 1EE
A follow-up to an existing permission · the principle is already approved, so only the detail is under consideration
Westminster · Reference 26/05166/FULL
Comment period closed
What is being proposed
Variation of Conditions 4 and 5 of planning permission dated 16 June 2025 (Ref: 25/03133/FULL) for the remodelling of the existing seventh-floor roof extension, including enlarged window openings, timber louvres to the existing plant area and creation of a roof terrace with metal balustrade and planter boxes. Namely to allow extended hours of use of the terrace (08:00 to 23:30 Monday to Thursday; 08:00 to 00:00 Friday and Saturday; and 08:00 to 22:30 Sunday), third-party use and the playing of music on the terrace.
Description as published by Westminster.
What this could mean for you
These are the effects a proposal like this most often raises. Each one is a material planning consideration, so each can form the basis of a comment.
- Noise and disturbance
- Overlooking and loss of privacy
Derived automatically from the proposal wording. Read the full application before relying on it.
Timeline
Received
31 Jul 2026 · Submitted to the council
Validated
31 Jul 2026 · Checked and published
Comments close
4 Sept 2026 · Last day to have your say
Decision due
25 Sept 2026 · Target date, often slips
Decided
Not yet · Outcome published
Key facts
- Reference
- 26/05166/FULL
- Authority
- Westminster
- Address
- 7, 9, Byron House, St James's Street, SW1A 1EE
- Postcode
- SW1A 1EE
- Type
- Conditions and amendments
- Scale
- Minor
- Applicant
- Not published
- Agent
- Not published
- Received
- 31 Jul 2026
- Decision due
- 25 Sept 2026
Also happening nearby
4 St James's Street, SW1A 1EF
A commercial scheme
Alterations to the interior built fabric to improve the retail space.
28 Almack House, King Street, St James's, SW1Y 6QW
A planning application
Amendments to planning permission dated 16th April 2026 (RN:26/01487/FULL) for Installation of a mechanical plant at lower ground floor and installation of two grilles to two lower ground floor windows, namely change to approved grille.