Essex · Fourteen authorities

Architects in Essex — chartered drawings, fixed fees

Essex divides between the Green Belt districts pressed against the London border — Epping Forest, Brentwood, Basildon — and the open rural and coastal authorities beyond. The constraint that catches most projects near London is Epping Forest habitat mitigation, not the Green Belt itself.

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Which council decides your Essex application?

Twelve district and borough councils cover the shire county — Basildon, Braintree, Brentwood, Castle Point, Chelmsford, Colchester, Epping Forest, Harlow, Maldon, Rochford, Tendring and Uttlesford — alongside two unitary authorities, Southend-on-Sea and Thurrock, which are administratively separate from Essex County Council. Fourteen planning authorities in total, each with its own Local Plan and validation list.

Householder fees are national and identical throughout: £258 for an extension or loft, £129 for a Lawful Development Certificate, £578 for a new dwelling. The variation is in local policy and in how quickly an application is registered.

14
Essex planning authorities
£840
Drawings from, fixed
£129
Certificate fee

What is the Epping Forest habitat contribution?

Epping Forest is a Special Area of Conservation, and development that increases the resident population within its zone of influence is treated as adding recreational pressure to a protected habitat. Councils across Epping Forest district and neighbouring authorities therefore seek a mitigation contribution on schemes that create additional bedrooms or dwellings within that zone.

For a householder extension the contribution is modest or absent; for a new dwelling or a conversion creating additional units it is a real budget line, calculated per dwelling by the authority. It is separate from the planning application fee and from the Community Infrastructure Levy, and it is the item most commonly missed when a project is priced from a London frame of reference.

Alongside it, the Metropolitan Green Belt covers most of Epping Forest district and large parts of Brentwood, Basildon and Castle Point. There, as in Surrey, an extension is judged against whether it is a disproportionate addition to the original dwelling. Buckhurst Hill, Chigwell and Loughton combine Green Belt, conservation areas along the Victorian villa streets, and the habitat zone in a single postcode.

What kind of work do we do across Essex?

  • Large rear and wrap-around extensions in Brentwood, Chelmsford and Chigwell, where plot sizes allow depth that would be impossible on a London terrace.
  • Loft conversions on the interwar and post-war stock of Basildon, Rochford and Castle Point — usually straightforward permitted development with a £129 certificate.
  • Replacement dwellings and substantial remodels in the Green Belt districts, where the volume comparison against the original house is the governing constraint.
  • Coastal and flood-zone work in Maldon, Rochford, Tendring and along the Thames estuary in Castle Point and Thurrock, where Flood Zone 2 and 3 designations bring a flood risk assessment and floor-level requirements.
  • Barn and agricultural conversions in Uttlesford, Braintree and Maldon under Class Q, where the structural condition of the existing building is usually the decisive issue.
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

Essex planning questions

Which council handles planning in Essex?

One of fourteen authorities. Twelve districts and boroughs cover the shire county — Basildon, Braintree, Brentwood, Castle Point, Chelmsford, Colchester, Epping Forest, Harlow, Maldon, Rochford, Tendring and Uttlesford — plus the unitary authorities of Southend-on-Sea and Thurrock.

Will I have to pay an Epping Forest contribution?

Only if your scheme adds bedrooms or dwellings within the zone of influence around the Special Area of Conservation. For a householder extension it is usually modest or absent; for a new dwelling it is a real budget line calculated per dwelling by the authority.

Can I extend in the Essex Green Belt?

Yes, subject to the disproportionate-addition test measured against the original dwelling as first built or as it stood on 1 July 1948. Most of Epping Forest district and large parts of Brentwood, Basildon and Castle Point are Metropolitan Green Belt.

Do I need a flood risk assessment in coastal Essex?

If the property sits in Flood Zone 2 or 3 — which covers substantial parts of Maldon, Rochford, Tendring, Castle Point and Thurrock — then yes, and it will affect finished floor levels and rule out some below-ground work.

How much do Essex 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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