Cox Format Developments Limited

Cox Format Developments Limited Building Contractors based in Barnet, North London, Hertfordshire.

We can design and build everything from a Loft Conversion/ Extension to a £2.5mill pound house.

Potters Road, EN5. This side extension had to be carefully hand dug in sections because of its proximity to next doors e...
14/06/2026

Potters Road, EN5. This side extension had to be carefully hand dug in sections because of its proximity to next doors extension that actually does not have any foundations.

New one starting today. Potters Rd, EN5.
05/06/2026

New one starting today. Potters Rd, EN5.

Woodville Rd, EN5, Barnet. Great progress. And as normal on our jobs. Clean and tidy.
17/05/2026

Woodville Rd, EN5, Barnet. Great progress. And as normal on our jobs. Clean and tidy.

We get asked, why are pocket doors more expensive than a normal door. It’s simple. There is a lot more materials and lab...
16/05/2026

We get asked, why are pocket doors more expensive than a normal door. It’s simple. There is a lot more materials and labour involved.

Woodville Rd, EN5. Great progress last week. Floor down, dormer up.
04/05/2026

Woodville Rd, EN5. Great progress last week. Floor down, dormer up.

04/05/2026

Woodville Rd, EN5. Great progress last week. Floor down, dormer up. The fantastic weather we had helps.

The roof went on last week on this little extension in High Barnet, EN5.
27/04/2026

The roof went on last week on this little extension in High Barnet, EN5.

26/04/2026
Tremlett Grove, N19. Lead dormer cladding and timber sash windows.
26/04/2026

Tremlett Grove, N19. Lead dormer cladding and timber sash windows.

Address

Unit 3 224a High Street
London
EN55SZ

Opening Hours

Monday 7:30am - 5pm
Tuesday 7:30am - 5pm
Wednesday 7:30am - 5pm
Thursday 7:30am - 5pm
Friday 7:30am - 4pm

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