What full plans give you
A full plans application provides drawings and supporting information for the council to examine. The resulting decision identifies whether the plans are approved, approved subject to requirements or rejected. This lets the team address technical queries before those details become concealed construction. [2] [3]
For a structural alteration, extension or conversion, the submission should describe the actual buildable design rather than simply repeat the planning drawings. Calculations and specifications need to be coordinated with the plans where relevant. [4] [5]
What a building notice does differently
With a building notice, detailed plans are not formally approved in the same way. Building control can still require information needed to assess compliance, and the completed work must satisfy the regulations. The route does not allow the builder to choose a detail that would be unacceptable under a full plans application. [1]
A practical disadvantage is discovering a design issue after work has begun. Decide who will supply technical information and resolve queries before choosing this route, rather than assuming the inspector will design the project on site. [6] [7]
When full plans are required
MHCLG's September 2026 circular confirms existing restrictions on building notices, including work to which the Fire Safety Order applies, relevant work fronting a private street, and work engaging the public-sewer provisions of requirement H4. The scope of the particular restriction needs checking against the project. [8]
Islington's application guidance also explains restrictions affecting building notices. This is especially relevant to flats, commercial premises and work near shared sewers; do not treat a building notice as the automatic small-project option. [9]
Private and higher-risk routes are separate
A private registered building control approver starts through an initial notice. That should not be confused with a council building notice. Work within the higher-risk regime follows the Building Safety Regulator's approval process rather than the ordinary council choice described here. [10] [11]
Proposed changes are not current permission
MHCLG consulted in 2026 on mandatory plan approval for all new dwellings and changes to private-sector plan approval. Its circular dated 10 September 2026 said the response would follow and changes would not take effect before 1 October. Establish the final implementing provisions and commencement before treating the proposal as an enacted requirement. [12][8]
Choose the correct current route first, then agree a programme that allows adequate design checking and site inspections. [1]