Extension plans and drawings across Cheshunt
We prepare extension plans and drawings for homes in Cheshunt, as a stand-alone service or as the first stage of a design and build project.
- Guide price in CheshuntFrom £1,250 inc VAT
- PlanningWe find the right route for you
- Timescale2–6 weeks for drawings
- Postcode districtsEN7, EN8, EN10
Covering Cheshunt
We cover Cheshunt and the postcode districts EN7, EN8, EN10. Nearby, we also take on projects in Hoddesdon (4 miles), Potters Bar (6 miles), Hertford (7 miles), Hatfield (9 miles).
Waltham Abbey, in Essex, is roughly 1 mile from Cheshunt and also on our list. The East of England mixes market-town terraces, inter-war semis and modern estates. Clay soils are common in parts of the region, which can affect foundation design.
Fees in Cheshunt
These are guide fees for Cheshunt, adjusted for East of England (×1.06) and including VAT. Council application and inspection fees are paid separately.
| Option | What it covers | Guide price |
|---|---|---|
| Essential | Measured survey and planning drawings | £1,250 – £2,350 |
| Standard | Planning drawings plus building regulations drawings | £2,300 – £4,050 |
| Premium | Full pack with structural calculations and 3D visuals | £3,600 – £5,850 |
For a figure based on your own dimensions, use our guide-price tool.
Do I need planning permission in Cheshunt?
In England the main routes are permitted development (ideally confirmed with a lawful development certificate, £274), larger home extension prior approval (£249, 42 days) and a householder planning application (£548, normally 8 weeks), with council fees as set from 1 April 2026.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
Applications are decided by the local planning authority (your district, borough or unitary council).
What we take care of
- 3D views to check the look and the light (full pack)
- Building regulations drawings and specification
- Two or three layout options to compare
- Measured survey of the house and garden
The most expensive changes are the ones made after the steel is ordered. A good design stage settles layout, heights, glazing and services on paper, so the build price is firm.
How the project works
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions answered
How long does this take for a Cheshunt home?
2–6 weeks for drawings, depending on the council and the complexity of the project.
Do you cover all of Cheshunt?
Yes. We cover Cheshunt and the surrounding parts of Hertfordshire. Site visits are free and there is no obligation.
Do I need building regulations approval in Cheshunt?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
How much do extension plans cost?
Our design packs range from about £1,250 to £5,850 including VAT, from planning drawings only to a full pack with building regulations drawings, structural calculations and 3D views. Council fees are separate.
Can I use your drawings with another builder?
Yes. Once paid for, the drawings are yours to use for your project.
Book a free site visit in Cheshunt
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.