2021 SEAT Leon

Price: £15,698. Good value: £2,335 (12%) under the AskCar estimate of £18,033, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,054 priced SEAT Leon adverts on AskCar as of 2 November 2026.

AskCar lists 2,123 used SEAT Leon from 1,289 UK dealerships, as of 2 November 2026.

Overview

  • Make: SEAT
  • Model: Leon
  • Version: Semi-Auto FWD Euro 6 5dr
  • Year: 2021
  • Mileage: 29,840 miles
  • Body: Hatchback, 5 doors, 5 seats
  • Gearbox: Semi-Automatic
  • Drive: Front-wheel drive
  • Colour: Grey
  • CO2: 128 g/km
  • Emissions standard: Euro 6

About this car

With 29,840 miles on the clock, this 2021 SEAT Leon has done roughly 16,200 fewer miles than a typical 2021 SEAT Leon. Its asking price of £15,698 is £2,335 below the AskCar estimate of £18,033. The AskCar estimate uses 2,054 UK dealer adverts for the SEAT Leon, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 41 days ago. Its asking price has since fallen by £600. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Wakefield Motorstore / Vanstore, based in Wakefield. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Good value: £2,335 (12%) under the AskCar estimate of £18,033.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 2,054 priced SEAT Leon adverts across different ages and specifications, as of 2 November 2026.

Time on sale

This 2021 SEAT Leon has been on sale for at least 41 days.

Price history

AskCar first saw this advert on 22 September 2026 at £16,298. Its asking price is now £15,698, £600 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

  • 22 September 2026: £16,298
  • 20 October 2026: £15,698

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 2 June 2027.

It has had 3 MOTs. The latest, on 28 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 27,599 miles, which matches the advertised 29,840 miles.

Advertised mileage is about 16,200 miles lower than the median mileage of a 2021 SEAT Leon on AskCar.

Browse all SEAT Leon cars for sale · 2021 SEAT Leon price guide

Photos

20 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.