Street naming and numbering after permission is granted

A street naming and numbering application is a separate council process from planning permission, and a new dwelling needs an official address before it can be occupied, connected to utilities or registered for council tax. The function sits with the council as street naming and numbering authority under the Public Health Act 1925 and, for house numbering, the Towns Improvement Clauses Act 1847, with local Acts applying in some areas. Planning permission does not create an address. Plot numbers are not addresses either.

Self-builders discover this at the point the electricity supplier asks for an address that does not exist yet.

Which council team deals with addressing

Not planning. In most councils the function sits with a small team variously called street naming and numbering, addressing, or the local land and property gazetteer team, often within land charges, geographic information or revenues rather than development management. In two-tier areas it is the district or borough council, not the county.

That team is the custodian of the council's address database, which feeds the national address dataset used by the emergency services, utilities, banks, insurers and delivery companies. The council creates the address record. Nobody else can.

Find the right contact before you need them. Search the council's website for street naming and numbering rather than for planning, because the planning case officer who determined your application will usually have no involvement and no influence over the outcome.

When to apply in the build programme

Apply once the layout is fixed and construction has started, and well before anyone needs a working address. On a single plot that means after the foundations are set out. On a multi-plot site it means once the approved layout is final and plot positions will not move.

Working backwards from occupation gives the real deadline. Utility meter installations, a broadband order, council tax banding by the Valuation Office Agency, Land Registry first registration, a building control completion certificate and a structural warranty all depend on the address. Several of those have their own lead times, so an address created a fortnight before completion is already late.

Three timing traps come up repeatedly:

1. Applying before the layout is settled, so a later design change leaves the approved numbering wrong and a renumbering application is needed.
2. Applying after the plots are sold on plot numbers, so buyers' solicitors have to amend documents when the real address appears.
3. Assuming the council will create an address for a conversion that adds flats, when subdivision almost always triggers a full renumbering of the building.

Information and plans required

Councils publish their own forms, and the requirements are broadly consistent. Expect to supply the planning reference and decision notice, a site location plan, a scaled site layout plan showing each unit with its plot number and its main entrance, floor plans where flats are involved, the developer or owner contact details, and the expected completion date.

Two details make the difference between a smooth determination and a round of queries. Mark the position of each front door and the street each unit will be addressed from, because numbering follows the entrance rather than the building footprint. And show the access route clearly on the layout, since a unit reached by a shared private drive may be addressed off the drive rather than off the adopted road.

For flats, state the intended numbering convention and let the council correct it. Floor-based numbering, with flats 1 to 4 at ground level and 5 to 8 on the first floor, is what most authorities prefer, and schemes submitted with sequential numbering that ignores floor level usually come back.

Fees and typical timescales

There is no national fee. Councils charge under their own published fees and charges schedule, typically a fee per new address plus a separate charge for naming a new street, and the figures are revised annually, so take them from the council's current schedule rather than from a budget line carried forward. The same goes for every other post-permission charge, including the monitoring fees attached to planning obligations on a larger scheme.

Timescales are published as service targets rather than set by statute. Numbering within an existing street is the quick case. Creating a new street name takes considerably longer because of the consultation involved, and councils will tell you their target if you ask.

Build the longer figure into the programme. An addressing application costs little and takes a while, which is the opposite of the risk profile people assume.

Naming a new street and the approval route

Where a development creates a new street, the developer normally proposes names and the council decides. The checks are consistent across authorities even where the policies are not written down in the same way.

A proposed name is tested for duplication or near-duplication within the same postal area, because two similar names on adjacent rounds cause misdelivery and, more seriously, delay emergency vehicles. Names that are hard to spell or to say on a phone are usually rejected for the same reason. Names commemorating living people are generally refused, and names with commercial or promotional content almost always are. Many councils ask for a theme linked to local history, former land use or local flora, and several consult the parish or town council and ward members before deciding.

Submit three or four options ranked in order of preference, with a short note on the local connection for each. A single proposed name with no alternatives invites a refusal and a second round.

Street name plates are a separate matter, usually a highway authority requirement with a specification for the plate and a commuted sum or a condition requiring installation before occupation.

Royal Mail and the postcode allocation

The division of labour catches people out. The council creates the address. Royal Mail allocates the postcode and adds the address to the postal address file once the council notifies it.

So the sequence is: council determines the application, council notifies Royal Mail's address management team and the other statutory recipients, Royal Mail allocates the postcode, and the address becomes usable. You cannot shortcut it by contacting Royal Mail directly, and an address that exists on the council's gazetteer but has not yet reached the postal file will fail some online checks even though it is official.

Expect a gap of a few weeks between the council's decision and everything working properly. That gap is the single most common reason a completion date slips for reasons nobody budgeted for.

Consequences of applying too late

The failures are mundane and expensive. A utility connection cannot be commissioned against a plot number, so meters are not installed and the house has no permanent supply. A broadband order cannot be placed, which on a rural self-build can mean months. The Valuation Office cannot band the property for council tax, which delays occupation paperwork. Land Registry first registration proceeds against a description rather than a postal address, which lenders dislike. Insurance quotations and warranty registration both fail at the postcode field.

The one that causes real harm is emergency service routing. An address that is not on the national dataset is not on the control room system, and in a rural location with a long private drive that is a safety issue rather than an inconvenience.

Treat addressing as a pre-occupation task with a lead time, in the same bracket as the discharge of conditions. Put it on the programme at the point planning permission is granted, alongside the other post-permission obligations a council will expect, and the sort of spending that turns up in an infrastructure funding statement later.

This is general guidance, not legal advice. Check the position with your local planning authority or a qualified professional before relying on it.

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