Two-tier areas: who handles highways and archaeology
The council that validates your application often is not the one commenting on access, drainage or archaeology. Here is how responsibilities split in two-tier areas and who to approach first.
In a two-tier area the council that validates your application is not the council that comments on your access, your drainage or your archaeology. The district or borough is the local planning authority. The county council is the local highway authority, the lead local flood authority, the minerals and waste planning authority, and the body that employs the archaeological adviser and holds the Historic Environment Record. Four of the consultations that decide a minor scheme sit in a different building, on a different budget, with a different set of pre-application charges.
Architects working across county boundaries lose weeks to this. The fix is to identify each responsible team before the drawings are finished, not after the first consultation response arrives.
Who is the local planning authority where you are
England runs three main models. In two-tier areas a county council sits above district, borough or city councils. In unitary areas, metropolitan boroughs and London boroughs, one authority does everything. National Park authorities are the local planning authority inside their boundaries, and a small number of development corporations hold planning powers for defined areas.
The district or borough determines almost everything: householder applications, full and outline applications, listed building consent, prior approvals and lawful development certificates. The county council determines applications for minerals and waste development and its own developments such as schools and highway works. That split matters if you are extending a school, because the application does not go where you expect.
Check which model applies at the site before anything else. The GOV.UK council finder resolves a postcode to the councils covering it, and the district's own planning pages will name the county services it relies on.
Highways: access, visibility and section 278 works
The local highway authority is the county council in two-tier areas, the unitary or borough elsewhere, Transport for London for the Transport for London Road Network, and National Highways for motorways and trunk roads. It is a consultee on planning applications affecting the highway, and its comments carry a great deal of weight because a highway safety objection is one of the few reasons for refusal that rarely survives an appeal challenge.
Its interest covers visibility splays, access geometry, parking and cycle standards, servicing and refuse vehicle tracking, trip generation and construction traffic. Where a scheme needs works to the public highway, those are consented separately under section 278 of the Highways Act 1980, and where a new street is to be adopted, under section 38. Both are legal agreements with their own timescales and their own fees, and neither is granted by the planning permission.
The practical advice is unglamorous. Ask the highway team for pre-application advice on the access position before the layout is fixed. A splay that cannot be delivered across third-party land will not be fixed at consultation stage, and a transport statement written after the layout is frozen can only describe the problem.
Archaeology and the Historic Environment Record
Archaeological advice to district councils in two-tier areas normally comes from a county archaeologist or a shared historic environment service, which also maintains the Historic Environment Record. The adviser is not a statutory consultee in the way the Environment Agency is, but their recommendation usually becomes the council's position, and their wording usually becomes the condition.
Two things follow. First, the record search that feeds an archaeological desk-based assessment is ordered from the county, is usually charged for, and can take weeks. Second, the person who decides whether trial trenching is needed before determination is the same person, so it is worth asking them directly at pre-application stage rather than putting the question to the case officer.
In unitary and London borough areas the equivalent service may be in-house, shared with a neighbouring authority, or bought in. Greater London has its own Archaeological Priority Area framework and a Historic England advisory role.
The lead local flood authority and surface water
The lead local flood authority is a county council or unitary authority under the Flood and Water Management Act 2010, and it is a statutory consultee on surface water drainage for major development. Its comments cover discharge rates, attenuation volumes, sustainable drainage design, exceedance routes and maintenance arrangements for the life of the development.
This is the consultation that most often produces a request for more information late in the eight or thirteen weeks. Drainage calculations, infiltration test results and a maintenance schedule submitted with the application, inside a drainage strategy, remove most of the back and forth. Infiltration testing has to happen on site, in suitable conditions, which is another reason to start early.
The Environment Agency is a separate body with a separate remit covering main rivers, Flood Zones 2 and 3 and groundwater, and confusing the two produces consultations sent to the wrong organisation.
Minerals, waste and other county safeguarding
County councils safeguard mineral resources and waste management infrastructure through minerals and waste local plans. Where a site sits within a Mineral Safeguarding Area, the district will consult the county, and the applicant may be asked to show that the proposal would not sterilise a workable resource, or to carry out prior extraction.
Counties also field education, libraries and adult social care contributions on residential schemes, public rights of way advice where a footpath crosses the site, and in many areas the ecology adviser and the flood risk officer. Some counties charge for pre-application advice by discipline, so budget for more than one fee.
Nutrient neutrality and habitat sites bring Natural England in as well, and their position drives what the council can lawfully approve. If the site sits in an affected catchment, read what the council asks for in a nutrient neutrality catchment before designing the drainage.
Reaching the right team before you submit
A short sequence saves the most time:
- Resolve the postcode to the district and the county, and confirm which is the local planning authority for your type of development.
- Download the district's local validation list and note which items are produced by county services.
- Send the access question to the highway team and the archaeology question to the county adviser, in writing, at the same time as the district pre-application request.
- Order the Historic Environment Record search and book any infiltration testing.
- Record every response and reference it in the covering letter, so the case officer can see the consultees have already seen the scheme.
Whether the application is then decided by an officer or by members depends on the district's scheme of delegation, so read it alongside the committee and delegation arrangements if the scheme is likely to attract objections.
One more habit is worth forming. County services and district services rarely talk to each other during an application, and neither of them will chase the other on your behalf. If the highway officer asks for a change that affects the drainage layout, tell the flood risk officer yourself and confirm it in writing to the case officer. Consultation responses are published on the planning register as they arrive, so check the register weekly during the determination period rather than waiting for the officer to summarise them at the end.
Where a county service is slow, the case officer usually has no power to speed it up. What they can do is agree an extension of time rather than refuse for lack of information, and that conversation goes better if you raise it first.
This is general guidance, not legal advice. Check the position with your local planning authority or a qualified professional before relying on it.
Enter your postcode on PlanScope to see which reports the consultees on your site are likely to ask for. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.
Frequently asked questions
Which council decides my planning application in a two-tier area?
The district, borough or city council is the local planning authority for householder, full, outline, listed building and prior approval applications. The county council determines minerals and waste applications and its own development, such as schools and highway schemes. Inside a National Park the park authority is the local planning authority for all of it.
Who is the local highway authority?
The county council in two-tier areas, the unitary or London borough elsewhere, Transport for London for its own road network, and National Highways for motorways and trunk roads. The highway authority comments on the planning application and separately consents works in the highway under section 278 or section 38 of the Highways Act 1980.
Is the county archaeologist a statutory consultee?
Not in the way the Environment Agency or Historic England are for their defined categories. The county or shared historic environment service advises the district, and in practice its recommendation usually becomes the council's position and the wording of any archaeological condition. Approach the adviser directly at pre-application stage.
When is the lead local flood authority consulted?
It is a statutory consultee on surface water drainage for major development, acting under the Flood and Water Management Act 2010. It comments on discharge rates, attenuation, sustainable drainage design and long-term maintenance. Submitting calculations, infiltration test results and a maintenance schedule with the application avoids the most common request for further information.
What is a Mineral Safeguarding Area?
An area identified in the minerals local plan where a workable mineral resource exists. Where a site falls within one the district consults the county as minerals planning authority, and the applicant may be asked to demonstrate that the development would not sterilise the resource, or in some cases to carry out prior extraction before building.
Sources and further reading
This article is general guidance about the planning system in England and, where stated, the rest of the UK. It is not legal or professional advice. Check your local planning authority’s validation requirements and take professional advice for your specific site.