Likely on retention
DVSA checkJune 2026
DVSA has no vehicle assigned to this mark — most likely held on a retention certificate.
SUI 9999 plate research
SUI 9999
- Format
- Northern Irish
- Authority Issuer
- Londonderry
- Era
- 2021
- Status
- In Private Ownership
Price History
PWIndicative estimate (recorded sales)
Indicative — not yet modelled
£1,209
EstimateDVDVLA
December 2021
£1,010
Sale| Source | Date | Price | Type |
|---|---|---|---|
| PWIndicative estimate (recorded sales) | Indicative — not yet modelled | £1,209 | Estimate |
| DVDVLA | December 2021 | £1,010 | Sale |
Plateworth estimate
need 2 sale records
December 2021
1 source
80 same-format sales
estimate vs cohort
About SUI 9999
Dateless registrations avoid an obvious vehicle age marker, which can make short combinations more flexible across prestige vehicles and long-term private ownership. The UI index mark traces back to Londonderry. At 7 characters, SUI 9999 is a standard-length registration for this era.
DatelessLondonderryAge-neutralStandard length
Plate Speak
SUIGGGG
Most likely reading: "SUIGGGG"
Other possible readings
SUI 9999SUIGGGGSUI9999
Plate History
SUI 9999 is a Northern Irish registration. Plateworth's current estimate is £1,209 with a working range of £1,028 to £1,390, based on 1 comparable sale. The latest evidence is a sale from DVLA at £1,010. No active dealer listing is shown, so the page separates the Plateworth estimate from public sale evidence. This page currently shows 2 timeline events from the loaded registration record.
DVLA sale recorded
Date precision: dayDecember 2021
Public sale record used by the valuation context.
£1,010
Price Guide for this Format
80 same-format sold records across 71 plates currently loaded.
£101
Lowest
£624
Average
£5,067
Highest
Distribution
<£3k99%
£3k-£10k1%
£10k-£50k0%
£50k-£100k0%
£100k-£250k0%
£250k-£500k0%
£500k+0%