Greater London · England
Driveway extensions and widening in Carshalton
Thinking about a driveway extension in Carshalton? Get a guide price in under a minute, then a free survey and a fixed written quote once the specification is agreed.
- Guide price
- £90–£145 per m²
- Postcodes
- SM5, SM1, SM6
- 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.
In Carshalton, as anywhere, the base is the part that decides how long a resin surface lasts. The survey settles whether we overlay, repair or rebuild it. Many homes in Carshalton have existing tarmac or block drives that can be assessed for an overlay or a rebuild.
Across Greater London, the projects we price include widening a drive into the front garden for a second car, adding a channel drain where a drive falls towards the garage and turning a cracked concrete drive into a seamless resin bound surface. More about driveway extensions and widening.
Prices for driveway extensions and widening in Carshalton
Prices in London are well above the UK average. These are guide ranges including VAT; your quote follows a free survey.
Worked example: a 25 m² drive in Carshalton with a dig-out and new permeable base would typically come to about £2,250–£3,600, including VAT.
| Service | Guide price inc VAT |
|---|---|
| Driveway extensions and widening | £90–£145 per m² |
| Dropped kerb applications | about £1,000–£2,500 per crossing, set by the highway authority |
| Resin over tarmac and concrete | £55–£85 per m² |
Based on London rates. See the full price guide or price your own project.
Planning in Carshalton
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
London is one of the drier parts of the UK, but heavy summer downpours on small, mostly paved plots are exactly what front-garden drainage rules were written for. We only lay resin on dry days with ground and air above about 5°C, so Carshalton jobs are booked with the forecast in mind.
How it works
Get a guide price online, book a free survey, receive an itemised written quote, then agree a date. Most drives over a ready base are laid in a day.
Driveway extensions and widening in Carshalton: questions
Do I need planning permission in Carshalton?
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.
Is the price fixed for Carshalton 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.
What postcodes do you cover around Carshalton?
We cover SM5, SM1 and SM6 and the surrounding districts, including Sutton and Mitcham.
Driveway extensions and widening near Carshalton
- Sutton 1.9 mi
- Mitcham 2.4 mi
- Morden 2.5 mi
- Croydon 3.1 mi
- South Croydon 3.2 mi
Other services in Carshalton
- 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 Carshalton
We cover SM5, SM1 and SM6 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