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Live Station Prices

Asda Observatory Express Petrol

520-522 Watford Way, Greater London NW7 2PT

Checked 23 August 2026 · last price change 21 August 2026 · retailers report changes within 30 minutes
7-day trend: Unleaded ▲ 1.0p · 7d · Diesel ▲ 1.0p · 7d
UNLEADED
166.9p
vs 5 stations within 3 miles
▲ 1.0p · 7d
Last changed 21 Aug
DIESEL
187.9p
vs 5 stations within 3 miles
▲ 1.0p · 7d
Last changed 21 Aug
Super Unleaded185.9p
Cheaper Than the Local AverageFilling a 55-litre tank here saves about £1.08 versus the average of 5 stations within 3 miles.
Unleaded (E10) at Asda Observatory Express Petrol is 166.9p per litre, 4.5p above the Greater London average of 162.4p, the 9th cheapest of 10 stations in Greater London. Diesel is 187.9p, 5.3p above the UK average of 182.6p. Prices last reported by the retailer on 21 August 2026.
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How This Station Compares

Local rank (Greater London)9th cheapest of 10
vs Greater London average (unleaded)+4.5p higher
vs UK average (unleaded)+5.5p higher
vs UK average (diesel)+5.3p higher

Nearby Stations

0.7 MISet 21 Aug · Checked today
Shell Apex Corner, NW7 3ET
UNLEADED
166.9p
DIESEL
188.9p
0.7 MISet 21 Aug · Checked today
BP Watford Way (a1), NW7 2ET
UNLEADED
168.9p
DIESEL
189.9p
Unleaded 2.0p/L more than this station · £1.10 extra a tank
0.8 MISet 21 Aug · Checked today
Jet Deansbrook Garage, 130, Hale Lane, Edgware, Ha8 9rz, HA8 9RZ
UNLEADED
159.7p
DIESEL
179.7p
Unleaded 7.2p/L cheaper than this station · save £3.96 a tank
1.5 MISet 21 Aug · Checked today
Welcome Break Motorway Services, NW7 3HU
UNLEADED
185.9p
DIESEL
205.9p
Unleaded 19.0p/L more than this station · £10.45 extra a tank
1.6 MISet 21 Aug · Checked today
Shell 421 Edgware Road, NW9 0HS
UNLEADED
162.9p
DIESEL
186.9p
Unleaded 4.0p/L cheaper than this station · save £2.20 a tank

Facilities

AdBlue (packaged)24-hour fuel

Opening Hours

mondayOpen 24 hours
tuesdayOpen 24 hours
wednesdayOpen 24 hours
thursdayOpen 24 hours
fridayOpen 24 hours
saturdayOpen 24 hours
sundayOpen 24 hours

Price History

Over the past 21 days, unleaded at this station has risen 4.0p (162.9p to 166.9p), while the UK average has risen 0.9p.

This stationUK average
23 Aug 2026166.9p
22 Aug 2026166.9p▲ 1.0
21 Aug 2026165.9p
20 Aug 2026165.9p
19 Aug 2026165.9p
18 Aug 2026165.9p
17 Aug 2026165.9p
16 Aug 2026165.9p
15 Aug 2026165.9p
14 Aug 2026165.9p
13 Aug 2026165.9p
12 Aug 2026165.9p
11 Aug 2026165.9p
10 Aug 2026165.9p
09 Aug 2026165.9p
08 Aug 2026165.9p
07 Aug 2026165.9p
06 Aug 2026165.9p▲ 1.0
05 Aug 2026164.9p▲ 1.0
04 Aug 2026163.9p
03 Aug 2026163.9p▲ 1.0
02 Aug 2026162.9p
Compare All Greater London Stations