Likely on retention
DVSA checkJune 2026
DVSA has no vehicle assigned to this mark — most likely held on a retention certificate.
K1 SOF plate research
K1 SOF
- Format
- Prefix
- Authority Issuer
- Birmingham
- Era
- Aug 1992 – Jul 1993
- Status
- In Private Ownership
Price History
PWPlateworth
Current estimate
£2,071
EstimateAUAuction
April 2026
£500
SaleAUAuction
April 2026
£500
SaleAUAuction
April 2026
£500
SaleAUAuction
April 2026
£500
SaleAUAuction
April 2026
£500
SaleAUAuction
April 2026
£500
SaleAUAuction
January 2020
£500
Sale| Source | Date | Price | Type |
|---|---|---|---|
| PWPlateworth | Current estimate | £2,071 | Estimate |
| AUAuction | April 2026 | £500 | Sale |
| AUAuction | April 2026 | £500 | Sale |
| AUAuction | April 2026 | £500 | Sale |
| AUAuction | April 2026 | £500 | Sale |
| AUAuction | April 2026 | £500 | Sale |
| AUAuction | April 2026 | £500 | Sale |
| AUAuction | January 2020 | £500 | Sale |
Plateworth estimate
over full record
April 2026
1 source
154 same-format sales
estimate vs cohort
Plate History
K1 SOF is a Prefix registration. Plateworth's current estimate is £2,071 with a working range of £1,261 to £2,195, based on 7 comparable sales. The latest evidence is a sale from Auction at £500. No active dealer listing is shown, so the page separates the Plateworth estimate from public sale evidence. This page currently shows 9 timeline events from the loaded registration record.
Auction sale recorded
Date precision: dayApril 2026
Public sale record used by the valuation context.
£500
Auction sale recorded
Date precision: dayApril 2026
Public sale record used by the valuation context.
£500
Auction sale recorded
Date precision: dayApril 2026
Public sale record used by the valuation context.
£500
Auction sale recorded
Date precision: dayApril 2026
Public sale record used by the valuation context.
£500
Auction sale recorded
Date precision: dayApril 2026
Public sale record used by the valuation context.
£500
Auction sale recorded
Date precision: dayApril 2026
Public sale record used by the valuation context.
£500
Auction sale recorded
Date precision: monthJanuary 2020
Public sale record used by the valuation context.
£500
Plate issued
DVLA registration era1992
Prefix
About Prefix Formats
Prefix registrations use a leading age identifier followed by numbers and letters. Short, name-like combinations such as N1 CKY can attract stronger interest when they are easy to read, memorable, or resemble a personal name.
Name-likeShort FormatMemorabilityPrivate Plate Appeal
Plate Speak
KISOF
Most likely reading: "KISOF"
Other possible readings
K1 SOFKISOFK1SOFInitials
Price Guide for this Format
154 same-format sold records across 142 plates currently loaded.
£100
Lowest
£17,602
Average
£143,901
Highest
Distribution
<£3k41%
£3k-£10k24%
£10k-£50k25%
£50k-£100k6%
£100k-£250k3%
£250k-£500k0%
£500k+0%