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Planning application

Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

Decided Hertsmere 26/0801/FUL Full applications

Works: Roofing Windows or glazing

Relates to 26/0793/LBC

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Repair and conservation of the timber roof structure and pitched roof coverings, re-covering of lead surfaces to the flat valley roof; repair and restoration of the clock tower (cupola), chimneys and entrance canopy; repair, repointing and conservation of the brick envelope; repairs to lead flashing, gutters, pipes and rainwater goods; repair of external windows; installation of photo-voltaic panels and ancillary external works. (Associated listed building consent application 26/0793/LBC.)

As published by the council, reference 26/0801/FUL

Application record

Reference
26/0801/FUL
Category
Full applications
Status
Decided
Received
9 Jun 2026
Validated
30 Jun 2026
Decided
28 Sep 2026
Ward
Shenley
Parish
The Parish Council South Mimms And Ridge
Postcode
AL4 0PG

Site history

Applications at this address on the Hertsmere register

This site has had 7 applications since 2022: 3 approved, 0 refused.

  • 26/1399/LBC Awaiting decision

    Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    Repairs and associated alterations to an outbuilding attached to Tyttenhanger House.

    Submitted 28 Sep 2026 Heritage and listed buildings
  • 26/0793/LBC Decided

    Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    Repair and conservation of the timber roof structure and pitched roof coverings, re-covering of lead surfaces to the flat valley roof; repair and restoration of the clock tower (cupola), chimneys and entrance canopy; repair, repointing and conservation of the brick envelope; repairs to lead flashing, gutters, pipes and rainwater goods; repair of external windows; installation of roof insulation and photo-voltaic panels; repair of windows and doors; refurbishment and conservation of third floor including long gallery, addition of secondary window glazing; provision of kitchen and WCs; installation of lighting, fixtures and fittings; installation of glazed partitions; repainting, repair and conservation of timber panelling and associated works. (Associated application for full planning permission 26/0801/FUL.)

    Decided 28 Sep 2026 Heritage and listed buildings
  • 26/0713/DOC Decided

    Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    Application for approval of details reserved by condition 4 (Internal doors to meeting room 01 and kitchen) (part discharge) of planning permission reference 25/0446/LBC.

    Decided 7 Jul 2026 Conditions
  • 25/0445/FUL Granted

    Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    Change of use to provide flexible class C3 (dwellinghouse) or class E(g)(i)(offices) together with internal refurbishment and consequential internal and external alterations including improving pedestrian access, steps, installation of new external door and replacement windows. (Associated Listed Building Consent 25/0446/LBC)

    Decided 30 Apr 2026 Full applications
  • 25/0446/LBC Granted

    Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    Internal refurbishment and consequential internal and external alterations including improving pedestrian access, steps and new external door and installation of replacement windows to facilitate the change of use to provide flexible class C3 (dwellinghouse) or class E(g)(i)(offices). (Listed Building Consent with associated full application 25/0445/FUL)

    Decided 30 Apr 2026 Heritage and listed buildings
  • 22/2005/DOC Granted

    Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    Application for approval of details reserved by Condition 2 (details of the proposed cleaning of the panelling, size of the power boxes, implementation of building regulations including fire proofing of doors and the position of extraction facilities, and proposed installation of emergency lighting) of planning permission reference 21/0735/LBC.

    Decided 25 Jan 2023 Conditions

Timeline

Dates from the published record

  1. 9 Jun 2026

    Received by Hertsmere

  2. 30 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 24 Jul 2026

    Added to PlanIndex

  4. 28 Sep 2026

    Decision issued

  5. 28 Sep 2026

    Status changed to Decided

    Previously Awaiting decision.

Cases linked to this one on the register

  • 26/0793/LBC Decided

    Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    Repair and conservation of the timber roof structure and pitched roof coverings, re-covering of lead surfaces to the flat valley roof; repair and restoration of the clock tower (cupola), chimneys and entrance canopy; repair, repointing and conservation of the brick envelope; repairs to lead flashing, gutters, pipes and rainwater goods; repair of external windows; installation of roof insulation and photo-voltaic panels; repair of windows and doors; refurbishment and conservation of third floor including long gallery, addition of secondary window glazing; provision of kitchen and WCs; installation of lighting, fixtures and fittings; installation of glazed partitions; repainting, repair and conservation of timber panelling and associated works. (Associated application for full planning permission 26/0801/FUL.)

    Decided 28 Sep 2026 Heritage and listed buildings

1 later application on the register refers to this one:

  • 26/0793/LBC Decided

    Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    Repair and conservation of the timber roof structure and pitched roof coverings, re-covering of lead surfaces to the flat valley roof; repair and restoration of the clock tower (cupola), chimneys and entrance canopy; repair, repointing and conservation of the brick envelope; repairs to lead flashing, gutters, pipes and rainwater goods; repair of external windows; installation of roof insulation and photo-voltaic panels; repair of windows and doors; refurbishment and conservation of third floor including long gallery, addition of secondary window glazing; provision of kitchen and WCs; installation of lighting, fixtures and fittings; installation of glazed partitions; repainting, repair and conservation of timber panelling and associated works. (Associated application for full planning permission 26/0801/FUL.)

    Decided 28 Sep 2026 Heritage and listed buildings

Documents

Plans, drawings, consultee responses and the officer's report

48 documents on file for this application

  • Ecology response Consultee replies · 22 Jul 2026
  • Consultee comment submitted online Consultee Comment · 03 Jul 2026
  • Application form redacted Application Form · 09 Jun 2026
  • Existing third floor plan Drawing/Plans · 09 Jun 2026
  • Panelling schedule Supporting Documents · 09 Jun 2026
  • Proposed fcu details Drawing/Plans · 09 Jun 2026
  • Proposed meeting room 01 plan and elevations Drawing/Plans · 09 Jun 2026
  • Proposed office 01 plan and elevations Drawing/Plans · 09 Jun 2026
  • Proposed office 02 plan and elevations Drawing/Plans · 09 Jun 2026
  • Proposed office 03 plan and elevations Drawing/Plans · 09 Jun 2026
  • Proposed plan third floor Drawing/Plans · 09 Jun 2026
  • Proposed secondary glazing detail_storm-slimline-unit-reveal_or similar Drawing/Plans · 09 Jun 2026
  • Proposed third floor kitchen plan and elevations Drawing/Plans · 09 Jun 2026
  • Proposed third floor sections Drawing/Plans · 09 Jun 2026
  • Proposed third floor wc plan and elevations Drawing/Plans · 09 Jun 2026
  • Proposed typical details Drawing/Plans · 09 Jun 2026
  • Site location plan Drawing/Plans · 09 Jun 2026
  • Site plan Drawing/Plans · 09 Jun 2026
  • Third floor floor types key plan Drawing/Plans · 09 Jun 2026
  • Third floor demolition key plan Drawing/Plans · 09 Jun 2026
  • Third floor door window panelling plan Drawing/Plans · 09 Jun 2026
  • Third floor scope of works Drawing/Plans · 09 Jun 2026
  • Typical door schedule Supporting Documents · 09 Jun 2026
  • Typical window schedule Supporting Documents · 09 Jun 2026
  • Das external fabric part 1 Supporting Documents · 09 Jun 2026
  • Das external fabric part 2 Supporting Documents · 09 Jun 2026
  • Das external fabric part 3 Supporting Documents · 09 Jun 2026
  • Existing annexe elevation e north Drawing/Plans · 09 Jun 2026
  • Existing annexe elevation f south Drawing/Plans · 09 Jun 2026
  • Existing annexe roof plan Drawing/Plans · 09 Jun 2026
  • Existing elevation a north Drawing/Plans · 09 Jun 2026
  • Existing elevation b east Drawing/Plans · 09 Jun 2026
  • Existing elevation c south Drawing/Plans · 09 Jun 2026
  • Existing elevation d west Drawing/Plans · 09 Jun 2026
  • Existing roof plan Drawing/Plans · 09 Jun 2026
  • Existing section bb Drawing/Plans · 09 Jun 2026
  • Existing section hh Drawing/Plans · 09 Jun 2026
  • Existing sections ff and gg Drawing/Plans · 09 Jun 2026
  • Bat preliminary roost assessment Supporting Documents · 09 Jun 2026
  • Bat roof surveys of lofts and internal spaces Supporting Documents · 09 Jun 2026
  • Bat emergence surveys and static monitoring Supporting Documents · 09 Jun 2026
  • Mechnical and engineering scope of works Supporting Documents · 09 Jun 2026
  • Third floor das part 1 Supporting Documents · 09 Jun 2026
  • Third floor das part 2 Supporting Documents · 09 Jun 2026
  • Third floor das part 3 Supporting Documents · 09 Jun 2026
  • Planning statement (june 2026) Supporting Documents · 09 Jun 2026
  • Cil form 1: cil additional information CIL · 09 Jun 2026
  • Heritage impact assessment Supporting Documents · 09 Jun 2026

Watch members (£5 a month) open the document list from here.

Open the documents

After the decision

Hertsmere has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    26/0793/LBC Submitted 9 Jun 2026 50 yards away

    Repair and conservation of the timber roof structure and pitched roof coverings, re-covering of lead surfaces to the flat valley roof; repair and restoration of the clock tower (cupola), chimneys and entrance canopy; repair, repointing and conservation of the brick envelope; repairs to lead flashing, gutters, pipes and rainwater goods; repair of external windows; installation of roof insulation and photo-voltaic panels; repair of windows and doors; refurbishment and conservation of third floor including long gallery, addition of secondary window glazing; provision of kitchen and WCs; installation of lighting, fixtures and fittings; installation of glazed partitions; repainting, repair and conservation of timber panelling and associated works. (Associated application for full planning permission 26/0801/FUL.)

    Decided Heritage and listed buildings Roofing Windows or glazing 76 docs
  • North London AD Facility, Coursers Farm, Coursers Road, Colney Heath, AL4 0PG

    21/1508/HCC Submitted 21 Jul 2021 50 yards away

    Proposed application for the removal of condition 3 (Spreading of Digestate) of planning permission 0/2212-17at North London AD Facility, Coursers Farm, Coursers Road, Colney Heath, AL4 0PG. (Consultation From Herts County Council).

    Granted Outline
  • Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    26/0713/DOC Submitted 26 May 2026 50 yards away

    Application for approval of details reserved by condition 4 (Internal doors to meeting room 01 and kitchen) (part discharge) of planning permission reference 25/0446/LBC.

    Decided Conditions 12 docs
  • Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    26/1399/LBC Submitted 28 Sep 2026 50 yards away

    87% historically approved · decision due ~23 Nov

    Repairs and associated alterations to an outbuilding attached to Tyttenhanger House.

    Awaiting decision Heritage and listed buildings
  • Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    25/0445/FUL Submitted 24 Mar 2025 100 yards away

    Change of use to provide flexible class C3 (dwellinghouse) or class E(g)(i)(offices) together with internal refurbishment and consequential internal and external alterations including improving pedestrian access, steps, installation of new external door and replacement windows. (Associated Listed Building Consent 25/0446/LBC)

    Granted Full applications Windows or glazing 45 docs
    Domestic
  • Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

    25/0446/LBC Submitted 24 Mar 2025 100 yards away

    Internal refurbishment and consequential internal and external alterations including improving pedestrian access, steps and new external door and installation of replacement windows to facilitate the change of use to provide flexible class C3 (dwellinghouse) or class E(g)(i)(offices). (Listed Building Consent with associated full application 25/0445/FUL)

    Granted Heritage and listed buildings Windows or glazing 44 docs
    Domestic

In Hertsmere

  • 26/1282/FUL Granted

    188 Mutton Lane Potters Bar Hertfordshire EN6 2AW

    Change of use from class C4 (6 bedroom HMO) to sui generis (7 bedroom HMO) use facilitated by internal alterations, loft extension and bin and bike storage.

    Received 3 Sep, published by the council 10 Sep 2026 Full applications
  • 26/0914/FUL Granted

    24 Southgate Road Potters Bar Hertfordshire EN6 5DZ

    Change of use from class C3 to sui generis 10 bedroom HMO use facilitated by demolition of existing conservatory to facilitate construction of single storey rear extension. Conversion of garage to habitable space to include replacement of garage doors with window. Conversion of loft to habitable space to include rear dormer, 2x front rooflights, alterations to fenestration and alterations to roof. Construction of first floor front/ side extension. Alterations to hard landscaping, bin and bike storage.

    Received 3 Jul, published by the council 24 Jul 2026 Full applications
  • 26/1131/FUL Granted

    Unit 12 Hamilton Business Park Stirling Way Borehamwood Hertfordshire WD6 2FR

    Part first part second floor extension with associated roof alterations.

    Received 10 Aug, published by the council 14 Aug 2026 Full applications
  • 26/1196/FUL Granted

    72 Cardinal Avenue Borehamwood Hertfordshire WD6 1ES

    Amendment to 25/1574/FUL to include conversion of loft to habitable space with hip-to-gable roof extension and rear dormer, with associated roof alterations.

    Received 18 Aug, published by the council 19 Aug 2026 Full applications
  • 26/0902/FUL Granted

    142 Manor Way Borehamwood Hertfordshire WD6 1QX

    Part retrospective application for the retention of an outbuilding and the installation of a rear access door in connection with the commercial unit (amended description).

    Received 29 Jun, published by the council 30 Jul 2026 Full applications