Two-storey extensions in Potters Bar
Planning a bigger home in Potters Bar? Compare extension types and guide prices below, then book a free site visit.
Potters Bar at a glance
- Postcode districts
- EN6
- Area
- Hertfordshire, England
- Price region
- East of England
- Nearest towns
- Hadley Wood (1.9 miles), New Barnet (3 miles), Barnet (3.1 miles), East Barnet (3.3 miles)
- Distance to Watford
- about 9.7 miles
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission.
Potters Bar sits about 9.7 miles from Watford. Closer to home, Hadley Wood is 1.9 miles away and New Barnet 3.0 miles.
Extensions available in Potters Bar
Two-storey rear extensions
Our East of England guide starts at £57,500 for this type.
Learn more
Two-storey side extensions
From £88,500 in Potters Bar. Free visit to firm it up.
Learn more
Two-storey wraparound extensions
Our East of England guide starts at £124,000 for this type.
Learn more
Part single, part two-storey extensions
For homes in Potters Bar: typical guide from £74,000.
Learn more
Extensions over a garage
For homes in Potters Bar: typical guide from £32,500.
Learn more
First-floor extensions
From £26,000 in Potters Bar. Free visit to firm it up.
Learn more
Two-storey extensions for semi-detached houses
Guide from £57,500 in Potters Bar, including VAT.
Learn more
Two-storey extensions for detached houses
Our East of England guide starts at £88,500 for this type.
Learn more
Kitchen extensions with bedrooms above
Potters Bar guide price from £57,500 (before kitchen units), Standard spec.
Learn more
Extra bedroom and en-suite extensions
Design, approvals and build for Potters Bar homes. Guide from £57,500 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Potters Bar depends mostly on where you have room. A deep garden points to a rear extension; space beside the house points to a side or over-garage extension; a house that already has a single-storey extension can often take a first floor on top.
Also available in Hertfordshire
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Party wall notices for extensions
- Design and build two-storey extensions
Rules for Potters Bar
Potters Bar is in England. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission. Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
The full England rules explained
Questions about extensions in Potters Bar
Do you cover Potters Bar?
Yes. We cover Potters Bar (EN6) and the surrounding area, including Hadley Wood and New Barnet. The first site visit is free.
What does a two-storey extension cost in Potters Bar?
Using our East of England guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £57,500–£78,000 including VAT. An extension over a garage is about £32,500–£47,500.
Which other places near Potters Bar do you cover?
Everywhere around it, including Hadley Wood (1.9 miles), New Barnet (3 miles) and Barnet (3.1 miles), and the rest of Hertfordshire.