Gatso Speed Camera on A4147, Hemel Hempstead (40mph)

This Gatso speed camera is located on A4147 near Hemel Hempstead in Hertfordshire, monitoring eastbound traffic with a 40mph speed limit.

Just after Leaverstock Green on the A4147 leading toward St. Albans. In addition a new kind of camera seems to have been installed alongside all the Gatso along this road. They are grey, stand just in front of the Gatso, and seem to point directly at the passenger side of vehicles, pointing sharply down as if to get a picture of the passenger. What are these cameras for? What triggers them?

Camera type

Gatso

Speed limit

40mph

Direction

Eastbound

Road

A4147

Nearest town

Hemel Hempstead

Last updated

15 May 2026

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Location reference: EEH048

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Caught speeding at this location?

If you have been caught speeding at or near this location, the guides below explain what happens next, what your options are, and how the penalty system works in the UK.

Caught speeding - what happens next? The complete guide from NIP to fine, course, points and court Notice of Intended Prosecution (NIP) What the letter means, the 28-day deadline and what to do next Speeding fines guide Fixed penalties, Band A/B/C fines, court thresholds and what to expect Speed awareness course Eligibility, what to expect on the day and whether it affects your insurance Penalty points and driving bans How points work, how long they last and when a ban applies Speeding and car insurance When to declare points, how much premiums increase and for how long

Gatso speed cameras

This camera is a rear-facing Gatso - one of the most common types in the UK.

If you saw a double flash, it likely recorded your speed.