How to Search the Planning Register in North London

Introduction

The planning register is the public record of all planning applications submitted to a local planning authority (LPA) — decisions, conditions, drawings, supporting documents, and planning history for every property that has had a planning application. In north London, where the planning history of a property can have significant implications for what can be built, what consents are already in place, and what conditions apply, searching the planning register is a valuable first step in any pre-design research. This guide explains how to search the planning register for the main north London boroughs and what information can be found.

Why Search the Planning Register?

Searching the planning register for a specific property reveals:

• Previous planning applications — what has been proposed for the property and the outcome (approved, refused, withdrawn)
• Planning conditions attached to existing permissions — conditions that limit future works or require compliance
• Any enforcement notices or breaches of planning conditions
• Listed building consent applications and decisions
• Conservation area consent applications (demolition)
• Prior approval applications under permitted development
• Applications for lawful development certificates

This information is relevant when:

• Buying a property — understanding the planning history reveals any planning conditions, consents, or enforcement issues affecting what can be done
• Planning a renovation or extension — knowing what has previously been refused (and why) avoids repeating previous mistakes
• Researching a neighbouring property's consent — when an adjacent property has been granted permission for a development that may affect you
• Checking whether a previous owner's works had consent — identifying any potentially unlawful development that may require regularisation

How to Search the Planning Register

Each north London borough maintains its own online planning register, typically accessible through the Planning Portal or the borough's own website:

Camden

Camden's planning portal is accessible at planning.camden.gov.uk. Search by address or planning application number. Camden's online register includes applications from approximately 2002 onward; older records may require a manual search at Camden's planning department.

Islington

Islington's planning portal at www.islington.gov.uk/planning provides address-based search for planning history. Islington's records extend to the early 2000s online; older applications require direct enquiry.

Barnet

Barnet's planning register is available at planningregister.barnet.gov.uk. Address search returns planning history including decisions, conditions and associated documents.

Haringey

Haringey's planning database is accessed through the council website at planning.haringey.gov.uk. Application documents including drawings and committee reports are downloadable.

Hackney

Hackney's online planning register at planning.hackney.gov.uk allows address-based searches with full decision notices, conditions and drawings.

Westminster

Westminster's online planning system is at cloudoplanning.westminster.gov.uk — comprehensive records going back many years including appeal decisions and listed building consents.

What You Can Find and Download

For most planning applications from the 2000s onward, the planning register provides:

• Decision notice — the formal decision with any conditions attached
• Submitted drawings and documents — the architect's drawings and planning statements submitted with the application
• Officer's report — the planning officer's assessment and recommendation (for applications determined by committee, the committee report is a detailed analysis of planning merits)
• Letters of representation — responses from neighbours and stakeholders
• Appeal decisions — where an appeal was made against refusal, the Inspector's decision letter

National Planning Register

The government's Planning Portal (www.planningportal.co.uk) provides a national portal that links to each LPA's planning register. New applications from approximately 2020 onward in most boroughs can be accessed through the national portal. For full historical records, the borough-specific portals remain the most reliable source.

Limitations of the Register

The planning register has some limitations to be aware of:

• Pre-2000 applications may not be digitised or accessible online — paper records must be accessed at the planning department directly
• Not all permitted development works are recorded on the register — works that did not require planning permission (within PD rights) will not appear unless a lawful development certificate was applied for
• Building Regulations applications are held by Building Control, not the planning register — these are separate records
• Some enforcement actions and pre-application advice records may not be publicly available

Conclusion

Searching the planning register is one of the first things an architect or planning consultant will do when taking on a project in north London. The planning history of a property and its immediate neighbours provides critical context for what is likely to be acceptable — particularly in conservation areas where previous applications have established precedent. For homeowners doing their own research before approaching an architect, the planning register is freely accessible and provides a wealth of information about what has been approved and refused in the specific street. An architect experienced in north London planning will search the register as part of the initial feasibility assessment and will interpret the planning history to inform the design strategy. See also our guide on planning history due diligence when buying a property.