How Much Do Planning Drawings Cost in Essex in 2026?

Whether you are planning a house extension, loft conversion, garage conversion or garden outbuilding, the cost of drawings depends on the scope of work and the application route. Robert Blake Designs provides residential planning drawings in Harlow, Essex and nearby Hertfordshire, with a tailored quotation before work begins.

Guide prices for planning drawings

These are starting prices from our current published price list, not guaranteed fixed fees for every property. Stage 1 covers planning drawings and application submission; Stage 2 is a separate building regulations drawing service where appropriate.

For current prices and the precise service scope, see our planning drawings price list.

What is included in Stage 1?

Stage 1 planning drawing fees include a visit to your property to discuss the proposals and a measured survey of the relevant areas. The agreed drawing package may include existing and proposed floor plans, elevations, relevant sections and application submission as your planning agent, as set out in your quotation.

What affects the price?

The size and complexity of the property, the number of proposed alterations, the extent of survey information required, site constraints and the planning application route all affect the scope. A straightforward rear extension may require less drawing work than a complex two-storey extension or a loft conversion involving several roof alterations.

Do I need planning permission?

Not every project needs a householder planning application. Some extensions and roof alterations may fall within permitted development rights, subject to the relevant conditions and restrictions. A Lawful Development Certificate may help establish whether a proposal is lawful. Larger home extensions can sometimes follow the prior approval route. The appropriate process should be considered for the individual property.

What about loft conversions?

A rooflight-only loft proposal may differ from a rear dormer, side dormer or hip-to-gable alteration. Roof shape, volume, materials and the location of the property can affect the planning position. Learn more about loft conversion planning drawings.

What is Stage 2?

Building regulations working drawings can provide technical plans, details, sections and construction notes to support a building control application. Robert Blake Designs offers Stage 2 for suitable projects where we prepared and submitted the planning drawings. Structural engineering, beam and foundation design, and structural calculations are not included and must be commissioned separately.

What other costs should I budget for?

Local authority planning application fees, Planning Portal service charges, site location plans, specialist heritage or arboricultural reports, sewer build-over agreements and structural engineering can be additional costs depending on the project. Application charges can change, so the current amount should be checked when submitting.

How do I get an accurate quotation?

Send the property address or postcode, a description of your proposals and any useful photographs, estate-agent floor plans or sketches. We can then discuss the likely drawing requirements and provide a quotation for the agreed scope.

Information is general guidance, not a determination of planning law for a particular property. Fees are subject to a project-specific written quotation.