Supermarket filling station
Sainsbury's Dome Roundabout
Cow Lane, Watford, WD25 9JS. Prices this forecourt has reported to the government’s Fuel Finder scheme; we check them twice a day.
Prices at Sainsbury's Dome Roundabout
- Unleaded petrol (E10) 162.9p 3.7p below the Watford average
- Diesel (B7) 181.9p 5.1p below the Watford average
- Petrol rank in Watford 2 of 7 1 is the cheapest forecourt
- Forecourt Supermarket Watford, WD25 9JS
Unleaded petrol is 162.9p a litre, 3.7p below the Watford average of 166.6p and 8.8p below the UK average. Diesel is 181.9p a litre, 5.1p below the Watford average of 187.0p and 12.7p below the UK average. It is the 2nd cheapest of 7 forecourts in Watford for petrol.
| Fuel | Price a litre | Last changed |
|---|---|---|
| Unleaded (E10) | 162.9p | 15 Sept, 22:40 |
| Super unleaded (E5) | 174.9p | 15 Sept, 22:40 |
| Diesel (B7) | 181.9p | 15 Sept, 22:40 |
Times are UK time. We last checked Fuel Finder at 16 Sept, 16:47.
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Filling stations near Sainsbury's Dome Roundabout
2 of the 8 nearest forecourts have cheaper petrol. The cheapest is Costco Wholesale Watford, 1.8 miles away, at 158.9p.
| Filling station | Miles | Petrol | Diesel |
|---|---|---|---|
 Asda Watford Supercentre Watford | 0.1 | 161.7p | 180.7p |
| Shell Little Waitrose Sceptre Watford | 0.1 | 165.9p | 184.9p |
 Esso Asda Sheepcot Express Petrol St Albans | 0.8 | 167.9p | 190.9p |
| Esso Rontec Watford Watford | 1.0 | 169.9p | 189.9p |
| Shell Co-op Hunton Bridge Kings Langley | 1.8 | 169.9p | 188.9p |
 Costco Wholesale Watford Watford | 1.8 | 158.9p | 177.9p |
 Tesco Watford Extra Watford | 2.1 | 163.9p | 182.9p |
| Harvest Energy Classic St Albans | 2.3 | 171.9p | 192.9p |
Distances are in a straight line. Highlighted prices are cheaper than here.
Opening hours and facilities
| Monday | 24 hours |
|---|---|
| Tuesday | 24 hours |
| Wednesday | 24 hours |
| Thursday | 24 hours |
| Friday | 24 hours |
| Saturday | 24 hours |
| Sunday | 24 hours |
Data sources and methodology
| Figures | Source | Period | Records | Updated |
|---|---|---|---|---|
| Forecourt prices | Fuel Finder open data Fuel Finder statutory scheme ONS Postcode Directory Office for National Statistics | Prices at 16:47 on 16 September 2026 | 8,070 filling stations | 16 September 2026 |
- Prices are those the forecourt has reported to Fuel Finder, the statutory scheme that requires UK filling stations to publish their prices within 30 minutes of a change. We check it twice a day, so a price may have changed since.
- Council areas come from the forecourt’s postcode, using the ONS Postcode Directory.
Source: Fuel Finder, the UK government’s statutory fuel price scheme.
Source: Office for National Statistics licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026.