Kent · Thirteen authorities

Architects in Kent — chartered drawings, fixed fees

More than a quarter of Kent is National Landscape — the Kent Downs across the north and the High Weald across the south west. Add the Metropolitan Green Belt around Sevenoaks and Dartford, and most Kent projects are assessed on landscape or Green Belt tests before design.

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MCIAT chartered drawings for planning, building regs, lofts and extensions — fixed fees 30% below typical London architects. Tell us what you need and we’ll reply the same working day.

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Which council decides your Kent application?

Twelve district and borough councils cover the shire county — Ashford, Canterbury, Dartford, Dover, Folkestone and Hythe, Gravesham, Maidstone, Sevenoaks, Swale, Thanet, Tonbridge and Malling, and Tunbridge Wells — alongside Medway Council, a unitary authority administratively separate from Kent County Council. Thirteen planning authorities in total.

Statutory fees are national and identical across all of them: £258 for a householder application, £129 for a Lawful Development Certificate, £578 for a new dwellinghouse, and no fee for listed building consent.

13
Kent planning authorities
£840
Drawings from, fixed
8 weeks
Householder determination

How do the Kent Downs and High Weald affect your scheme?

The Kent Downs National Landscape runs along the chalk escarpment from the Surrey border through Sevenoaks, Maidstone and Ashford to the Dover cliffs. The High Weald National Landscape covers much of Tunbridge Wells and the southern parts of Tonbridge and Malling. Both were formerly designated Areas of Outstanding Natural Beauty, and the change of name did not change the statutory weight.

Inside a National Landscape, and within its setting, schemes are assessed on landscape and visual impact: prominence in long views, roof form, materials and the extent to which a building reads as part of the settlement or as an intrusion into open countryside. Some permitted development rights are narrower, and the larger home extension prior approval route is unavailable in designated land.

The Metropolitan Green Belt covers most of Sevenoaks district and parts of Dartford, Gravesham and Tonbridge and Malling. Where Green Belt and National Landscape overlap — which they do across much of Sevenoaks — a scheme has to satisfy both the disproportionate-addition test and the landscape test, and the more restrictive of the two governs.

What kind of work do we do across Kent?

  • Extensions and remodels in Sevenoaks, Tonbridge and Tunbridge Wells, where the constraint is usually landscape or Green Belt rather than neighbour amenity.
  • Loft conversions on the interwar and post-war stock of Dartford, Gravesend, Maidstone and Medway — generally permitted development with a £129 certificate.
  • Oast house and rural conversions across the Weald, where the structural condition of the existing building and the retention of its distinctive form are the decisive planning issues.
  • Coastal work in Thanet, Dover, Folkestone and Hythe and Swale, where flood zones, cliff stability and dense seafront conservation areas shape what is achievable.
  • Heritage alterations in Canterbury, Rochester, Faversham and Royal Tunbridge Wells, all of which carry extensive conservation-area coverage over medieval and Georgian cores.
PackageFixed feeTurnaround
Essentials — measured survey, existing and proposed plans£84014–20 working days
Loft conversion package — survey, plans, sections, elevations£1,22514–20 working days
Mansard / roof rebuild package£1,57518–24 working days
Complete — planning plus building regulations drawings£1,75020–28 working days

Kent planning questions

Which council handles planning in Kent?

One of thirteen authorities: twelve districts and boroughs across the shire county — Ashford, Canterbury, Dartford, Dover, Folkestone and Hythe, Gravesham, Maidstone, Sevenoaks, Swale, Thanet, Tonbridge and Malling, Tunbridge Wells — plus the unitary Medway Council.

What is a National Landscape?

The current name for what was designated an Area of Outstanding Natural Beauty. Kent has two: the Kent Downs along the chalk escarpment and the High Weald across the south west. The statutory weight is unchanged — schemes inside them and in their setting face a landscape and visual assessment.

Can I use the 6 metre prior approval route in Kent?

Not on designated land. The larger home extension prior approval route is unavailable inside a National Landscape, a conservation area or a site of special scientific interest, which rules it out across a substantial share of the county.

Can I convert an oast house or barn?

Often yes, under Class Q or through a full planning application, but the structural condition of the existing building is usually decisive: permitted development rights for agricultural conversion require the building to be capable of conversion without substantial rebuilding, and they do not apply in a National Landscape.

How much do Kent drawings cost?

The same fixed fees as London: £840 for the Essentials planning package, £1,225 for a loft, £1,575 for a mansard or roof rebuild, and £1,750 for planning plus building regulations from a single survey.

Last updated: 28 July 2026 · Written by the Architectural Drawings London technical team, chartered members of the Chartered Institute of Architectural Technologists (MCIAT). · About our team

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