Planning a driveway extension in Letchworth Garden City
Letchworth Garden City is a sizeable town with a mix of semis, terraces and newer estates, and many drives here were first laid decades ago.
Clay soils are common in parts of the East of England, so drainage and sub-base depth get extra attention.
How much does a driveway extension cost in Letchworth Garden City?
Expect driveway extensions in Letchworth Garden City to come in at around £95–£160 per m², including VAT at 20%. As an example, a 15 m² extension usually comes to between £1,650 and £2,700.
| Item | Guide price inc VAT |
|---|---|
| Driveway extension in block paving | £95–£160 per m² |
| Breaking out an old surface | £11–£40 per m² |
| Edging or kerb, bedded and haunched | £20–£55 per metre |
| Typical channel drain run | £370–£1,050 |
| Dropped kerb (vehicle crossover) construction | £1,050–£3,150 |
Guide figures for the East of England, checked 9 November 2026. See all prices or use the guide price tool.
What is included?
A driveway extension adds paving to an existing drive, usually to fit a second car by taking in part of the front lawn, or to lengthen a drive towards the house or garage. The new section is built on its own sub-base and tied into the old paving so the two act as one surface.
- Joint sand, compaction and a clean-down of the old section
- Old edge restraint taken out and the new paving toothed into the old pattern
- Matching options: same range, re-mixing old and new, or a planned contrast
- Check of the existing drive: block range, thickness, levels and condition
- Dig-out and sub-base for the new area
What we check on a Letchworth Garden City survey
- The kerb: is it already dropped, and is it wide enough?
- Levels against the damp-proof course (the finished paving must sit at least 150 mm below it)
- Block range, thickness, colour and pattern to suit the house
- Trees and roots near the drive
- Ground conditions under the old surface and how deep the sub-base must be
Planning and kerb rules in Letchworth Garden City
Letchworth Garden City is in England, so these rules apply:
In England, paving in front of the house that covers more than 5 m² needs planning permission unless it is permeable or drains to a lawn, border or soakaway inside your boundary. Permeable block paving, or standard blocks laid to fall onto a planted strip, avoid the need for permission in most cases.
Flats and maisonettes, listed buildings, and homes covered by an Article 4 direction can have tighter rules, and conservation areas, National Parks and National Landscapes restrict some permitted development.
A dropped kerb needs your local highway authority's approval (usually the county, unitary, metropolitan or London borough council), and a new access onto an A, B or C classified road also needs planning permission.
General guidance, not legal advice. Your survey confirms what applies to your home. See the planning guide.
What happens next
Tell us about the job
Use the form, the quote tool, WhatsApp or a call.
We take a look
A survey visit, or photos for smaller repair and cleaning jobs.
Price in writing
Every line itemised, including the dig, edging and drainage.
Booked and built
Agreed start date, then the work, the final clean-down and the joint top-up.
How we work
Edges set in concrete
Every edge restraint is bedded and haunched, so the paving cannot creep.
Water planned first
Falls, channels and soakaways are designed before the pattern is chosen.
Repair before replace
If your drive can be fixed or re-laid, we will say so.
Honest timescales
We tell you how long the job takes and what can delay it, such as approvals and weather.
Drive extensions in Letchworth Garden City: questions
Do you cover Hitchin, Stevenage and Welwyn Garden City?
Yes. We cover Letchworth Garden City and the places around it, including Hitchin, Stevenage and Welwyn Garden City, and the rest of Hertfordshire.
How long does a driveway extension take to build?
Most homes take between three and seven working days, depending on size, the dig and the drainage. Your quote gives the expected duration.
Is the survey in Letchworth Garden City free?
Yes, for new paving here: the survey and written quote are free with no obligation. Repairs and cleaning are usually priced from photos, or from a short visit where needed.
How much does a driveway extension cost in Letchworth Garden City?
Our guide for Letchworth Garden City is £95–£160 per m² including VAT, so a 15 m² extension is usually about £1,650–£2,700. Your fixed price follows the survey.
Drive extensions near Letchworth Garden City
Nearby towns we cover for drive extensions, and drive extensions across Hertfordshire:
- Drive extensions in Hitchin
- Drive extensions in Stevenage
- Drive extensions in Welwyn Garden City
- Drive extensions in Harpenden
- Drive extensions in Hertford
- Drive extensions in Hatfield
