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Sillitoe Architecture

An architecture practice. 7 planning applications on PlanIndex. On the register from 2025 to 2026.

Where they work

  1. Cardiff7

    100% approved here, against 95% for the council

What they file

  1. Householder57%
  2. Heritage and listed buildings29%
  3. Conditions14%

Track record

The 7 most recent applications naming this firm

  • 26/00622/LBC Granted

    19 High Street Llandaff Cardiff CF5 2DY

    Replace existing Roof Structure, Install Flush Fitting PV panels to rear roof of main house and approved extension. Additional Roof light to rear Roof.

    Decided 1 May 2026 Heritage and listed buildings
  • 26/00392/HSE Granted

    18 Nant-fawr Road Cyncoed Cardiff CF23 6JR

    Single storey rear extension with raised patio.

    Decided 18 Jun 2026 Householder
  • 25/02937/DOC Granted

    19 High Street Llandaff Cardiff CF5 2DY

    Discharge of Conditions 3 (Method statement for cement removal), 5 (Structural reinforcement details), 6 (Roof works details), 7 (Joinery details), 8 (Dormer details), 9 (Extension details), 10 (Boundary treatment details) of 25/01465/LBC

    Decided 29 Apr 2026 Conditions
  • 25/02403/HSE Granted

    19 High Street Llandaff Cardiff CF5 2DY

    Erect 2 No gates to the boundary with the highway and install a domestic air source heat pump.

    Decided 25 Nov 2025 Householder
  • 25/01465/LBC Granted

    19 High Street Llandaff Cardiff CF5 2DY

    Single storey rear extension, rear dormer extension, roof light to rear and other associated external alterations including a new front gate and wall, replacement gutters and drainpipes, roof repair and renewal, new and replacement windows, and stone repairs. Internal alterations to the property.

    Decided 1 Oct 2025 Heritage and listed buildings
  • 25/01464/HSE Granted

    19 High Street Llandaff Cardiff CF5 2DY

    Single storey rear extension, rear dormer loft conversion, roof light to rear and other associated external alterations including a new front gate and wall, new gutters and drainpipes, and the replacement and repair of various windows, doors and stonework.

    Decided 1 Oct 2025 Householder
  • 25/01144/HSE Granted

    114 Mill Road Lisvane Cardiff CF14 0UG

    Part single, part two-storey front and rear extensions with other general remodelling.

    Decided 1 Oct 2025 Householder

The full track record

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<a href="https://planindex.co.uk/agent/sillitoe-architecture"><img src="https://planindex.co.uk/embed/firm/sillitoe-architecture.svg" alt="Sillitoe Architecture: planning applications and approval record on PlanIndex" width="300" height="72"></a>

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From council registers and Companies House. Counts describe the records we hold, not a firm's complete history. Request a correction or removal.