AllertonBD15
The approach starts with the property.
Your BD15 project checklist Free text download · No details required
Photograph & credit
Byland Grove, Allerton - geograph.org.uk - 3413026.jpg by Humphrey Bolton. CC BY-SA 2.0. Resized and compressed; cropped for page layout. No retouching. Source date: 2013-04-15.
The Allerton brief
A newer home in Allerton and an older village property in Wilsden can need different preparation for the same proposed extra room. Start with the property’s original design, later changes and planning history. Do not use the outward postcode as a shortcut for construction type or development rights.
Preparation guidance, not a survey of your property. The location photograph shows the area; it is not evidence of work by ATR.
BD15 / 01
Read the earlier decisions
Bring to the conversationOriginal and later planning decisions with the relevant drawings.
Why this matters
For a newer property or previous extension, check conditions and approved drawings before deciding the next addition. Compare the records with the building as it stands and flag differences for review.
BD15 / 02
Check the construction being joined
Bring to the conversationExisting construction details or a list of areas needing survey.
Why this matters
Record the existing wall, floor and roof arrangement and identify any unknown build-ups. Ask what investigation is needed to design the connection rather than selecting the extension structure in isolation.
The address matters
Allerton.
The local detail.
Planning records, local maps and the checks relevant to your brief.
Find your councilLocal maps & character documents1 resource
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.
WilsdenBradford Council2 resources
Use the property record and the mapped conservation area, rather than assuming the whole postcode has one designation.
Planning history Conservation maps & assessmentsHistoric England1 resource
Search for an individual listed building. This is a different check from whether it stands in a conservation area.
Search the National Heritage ListUse the full address and site boundary. A postcode does not establish permissions or site conditions. Resources reviewed 16/10/2026.
ATR Developments
Your next step
in Allerton.
Discuss your project Scope and availability confirmed after a conversation and site assessment.