HX3 PROJECT PREPARATION BRIEF
Linking an extension to an older Northowram or Hipperholme home

Prepared by ATR Developments Limited. You can use this with your designer or builder.
These are preparation prompts, not a property survey or a permissions decision.

Project address: ______________________________
Proposed work: ________________________________
Intended use / occupation: ____________________

For an older house in Northowram, Hipperholme or Lightcliffe, an extension should be designed around the existing floor heights, roof form and openings. A new room can be generous while leaving the connection to the original house awkward. Resolve that connection before concentrating on its finishes.

DECISIONS TO RESOLVE

1. Compare floor heights and circulation
Measure both sides of any proposed opening and show the route through the finished house. Consider whether an internal step, altered doorway or relocated service affects the intended use of the new room.
[ ] Gather: An existing/proposed plan and section through the connection.
Notes: ________________________________________

2. Specify the external junction
Document materials, eaves and window details and check the relevant heritage information. Agree how new work meets the old fabric, including rainwater and maintenance access.
[ ] Gather: Elevation photographs and a junction detail.
Notes: ________________________________________

ADDRESS CHECKS
[ ] Confirm the authority using the full address: https://www.gov.uk/find-local-council
[ ] Establish applicable permissions with the relevant authority and advisers.

PRIMARY RESOURCES

Local maps & character documents
Selected links from the council’s directory. Use the named area and boundary to check relevance to your property; these documents do not apply to the whole postcode.
Northowram Village ( PDF 8.5MB ): https://new.calderdale.gov.uk/sites/default/files/2023-06/northowram-village-conservation-area.pdf
Copley ( PDF 1MB ): https://new.calderdale.gov.uk/sites/default/files/2023-06/Copley-conservation-area.pdf

Calderdale Council
Check the address in the application records and consult the appropriate conservation information.
Planning history: https://new.calderdale.gov.uk/planning-and-building-control/search-and-comment-planning-applications
Conservation information: https://new.calderdale.gov.uk/planning-and-building-control/conservation

Historic England
Search for an individual listed building. This is a different check from whether it stands in a conservation area.
Search the National Heritage List: https://historicengland.org.uk/listing/the-list/

Resource review: 2026-10-16
No project cost, permission or availability is confirmed by this checklist.