Planning a permeable block drive in Welwyn Garden City
Homes in Welwyn Garden City include plenty of semis and detached houses with room for a drive, plus older terraces where parking is tighter.
Clay soils are common in parts of the East of England, so drainage and sub-base depth get extra attention.
How much does a permeable block drive cost in Welwyn Garden City?
In the East of England, a permeable block drive usually costs £110–£180 per m² including VAT. For a 50 m² drive, that is roughly £5,500–£8,950. Your exact price depends on what the survey or your photos show, and is fixed in writing before anything is booked.
| Item | Guide price inc VAT |
|---|---|
| Permeable block paving driveway | £110–£180 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?
Permeable block paving is block paving built so that rainwater drains down through the joints into a deep, open-graded stone sub-base, where it is stored and soaks away slowly into the ground or is piped off. The blocks have small spacers or wider joints filled with fine grit instead of sand.
- Edge restraints and any overflow or outlet the design needs
- Deeper dig-out for the open-graded sub-base
- Open-graded crushed stone (no fines) laid and compacted in layers
- Ground check: how well the soil drains and how high the water table sits
- Geotextile layer where the design needs one
What we check on a Welwyn Garden City survey
- Levels against the damp-proof course (the finished paving must sit at least 150 mm below it)
- Trees and roots near the drive
- Where an electric vehicle charger cable might run
- Whether front-garden planning rules apply
- Edges against lawns, beds, walls and neighbours
Rules for front drives in Welwyn Garden City
Welwyn 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.
From enquiry to finished paving
Send the basics
Postcode, what you need and a rough size. Photos help.
Survey
We measure, check levels, ground and drainage, and talk through blocks and patterns.
Written quote
An itemised quote with the specification, the price and the start date.
The work
Our paving team builds it to the agreed specification and leaves the site swept.
What you can expect from us
Repair before replace
If your drive can be fixed or re-laid, we will say so.
Edges set in concrete
Every edge restraint is bedded and haunched, so the paving cannot creep.
The dig and sub-base in writing
Your quote states the depth of dig, the sub-base thickness and how it is compacted.
Clean finish
The site is swept, the joints are filled and you are shown how to look after the paving.
Permeable paving in Welwyn Garden City: questions
What happens to my old drive?
It is broken out and taken away by skip or grab lorry, listed as its own line on your quote.
Do you cover Hatfield, Hertford and St Albans?
Yes. We cover Welwyn Garden City and the places around it, including Hatfield, Hertford and St Albans, and the rest of Hertfordshire.
Can you match the blocks to my house in Welwyn Garden City?
We bring samples to the survey and suggest blocks and borders that suit the age and brick of the house. Final colour is your choice.
How long does a permeable block drive 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.
Permeable paving near Welwyn Garden City
Nearby towns we cover for permeable paving, and permeable paving across Hertfordshire:
- Permeable paving in Hatfield
- Permeable paving in Hertford
- Permeable paving in St Albans
- Permeable paving in Harpenden
- Permeable paving in Stevenage
- Permeable paving in Potters Bar
