Hertfordshire · England
Driveway extensions and widening in Welwyn Garden City
Thinking about a driveway extension in Welwyn Garden City? Get a guide price in under a minute, then a free survey and a fixed written quote once the specification is agreed.
- Guide price
- £80–£130 per m²
- Postcodes
- AL7, AL8
- Survey
- Free, no obligation

What driveway extensions and widening involves
A driveway extension adds new hard-standing to an existing drive, usually by taking in part of the front garden, so more cars can park off the road. The new area needs its own excavation and base, and the whole drive is often resurfaced in resin so old and new match.
Any resin job in Welwyn Garden City starts the same way: we check whether your existing surface is sound enough to overlay or needs digging out, because that decides both the price and how long the surface lasts. Welwyn Garden City mixes older streets with newer estates, and many homes have room for two or more cars.
Projects we quote in and around Welwyn Garden City include replacing tired block paving with a permeable resin build, turning a cracked concrete drive into a seamless resin bound surface and widening a drive into the front garden for a second car. More about driveway extensions and widening.
Prices for driveway extensions and widening in Welwyn Garden City
Guide prices for Welwyn Garden City are based on East of England rates, which are above the UK average. The written quote after your survey is the figure that counts.
As a guide, a 67 m² drive in the AL7 area with a dig-out and new permeable base would be around £5,450–£8,700, including VAT.
| Service | Guide price inc VAT |
|---|---|
| Driveway extensions and widening | £80–£130 per m² |
| Dropped kerb applications | about £1,000–£2,500 per crossing, set by the highway authority |
| New resin driveways (full dig-out) | £80–£130 per m² |
Based on East of England rates. See the full price guide or price your own project.
Planning in Welwyn Garden City
In England, a new or replaced hard surface of more than 5 m² in a front garden is permitted development only if it is porous, or if rainwater drains to a lawn, border or soakaway within the property. A fully permeable resin bound build, with a porous base under it, meets that test.
Permitted development rights apply to houses, not flats or maisonettes, and some conservation areas have Article 4 directions that remove them. Listed buildings can need consent if railings or historic walls are affected.
If cars will cross the pavement in a new place, or the crossing needs widening, consent is needed from your council as local highway authority before any kerb work.
General information for England, not legal advice.
Weather and working days
The East of England is the driest part of the UK, which gives a long resin laying season, though heavy clays in places mean the sub-base needs designing for slow drainage. Laying days in Welwyn Garden City are confirmed close to the date, because rain and cold stop resin curing properly.
How it works
The steps are simple: guide price, free survey, written quote with a fixed price once the specification is agreed, then a date that suits you and the weather.
Driveway extensions and widening in Welwyn Garden City: questions
How soon can you survey in Welwyn Garden City?
Call 0800 088 6341 or use the quote tool and we will offer survey dates. Surveys are free and run all year.
Is the price fixed for Welwyn Garden City jobs?
Yes, once the scope and specification are agreed in writing. If hidden ground conditions turn up, we explain and agree any change with you before doing extra work.
Can you lay resin in Welwyn Garden City in winter?
On dry days with ground and air above about 5°C, yes. The East of England is the driest part of the UK, which gives a long resin laying season, though heavy clays in places mean the sub-base needs designing for slow drainage.
Driveway extensions and widening near Welwyn Garden City
All of Hertfordshire · Everything we do in Welwyn Garden City
Other services in Welwyn Garden City
- Resin bound driveways
- Resin bonded driveways
- Resin over tarmac and concrete
- New resin driveways (full dig-out)
- Permeable SuDS driveways
- Resin patios
- Resin garden paths
- Resin steps
- Accessible resin ramps
- Excavation and sub-base
- Driveway drainage and soakaways
- Driveway edging and borders
- Dropped kerb applications
- Resin driveway repairs
- Resin driveway cleaning
- Resin driveway restoration
- Commercial resin surfacing
Free survey · itemised quote
Book a free survey in Welwyn Garden City
We cover AL7 and AL8 and nearby. Tell us about your project and we will be in touch to arrange a visit.
- Base, edging and drainage priced line by line
- Real blend samples shown in daylight
- Price fixed in writing once the spec is agreed
Prefer to talk? 0800 088 6341 or