HMP Kilmarnock at a glance
- Type
- Prison (national service establishment)
- Holds
- Men
- Run by
- Scottish Prison Service
- Nation
- Scotland
- Region (geographic)
- Scotland
- Town / county
- Kilmarnock (Hurlford), East Ayrshire
- Postcode
- KA1 5AA
Official description (GOV.UK/SPS/NI Justice): “500-cell prison; formerly operated by Serco, transferred to SPS on 17 March 2024 on contract expiry per SPS page.” Official page.
Pay and conditions are set by SPS, not HMPPS; the E&W pay bands, pay zones and market supplements do not apply. SPS publishes no operational capacity figure on the establishment page.
From private contract to the SPS
In shortKilmarnock was run by Serco for 25 years and transferred to the SPS on 17 March 2024, leaving Addiewell as the one private prison.
- Cells500About three miles south-east of Kilmarnock town centre, near Hurlford in East Ayrshire
- Transferred to the SPS17 March 2024When the Serco contract expired
- Design capacity501SPS listing, 9 September 2025
The Scottish Prison Service (SPS) says Kilmarnock houses a range of prisoner types and acts as the local receiving prison mainly for the Sheriff Courts of Ayr and Kilmarnock.
It was previously operated by Serco Ltd on behalf of the SPS under a contract with the Scottish Ministers. The Scottish Parliament’s research service describes 25 years of private operation.
- HM Inspectorate of Prisons for Scotland (HMIPS) records two residential blocks and a separation and reintegration unit, with NHS Ayrshire and Arran providing healthcare.
- HMIPS said its 2025 inspection was the first of a Scottish prison transferred from the private to the public sector.
- The SPS says Addiewell is the one prison still run by a private operator under contract.
The May 2025 inspection
In shortAll nine standards were rated only generally acceptable, with the central issue being population pressure after the transfer.
- Inspected19 to 23 May 2025The first inspection of a Scottish prison transferred from private to public
- Standards generally acceptable9 of 9Against four satisfactory and five generally acceptable in October 2021
- Extra prisoners accommodated after transferUp to 157Target operating model was based on 500
- Cells converted to small doubles223Just below internationally recognised minimum space standards
The Chief Inspector credited everyone involved for a safe, controlled transfer with no prisoner unrest. On 22 May 2025 38 cells were shared by convicted and remand prisoners, contrary to the Nelson Mandela Rules. The report notes the team was not given time to embed SPS systems before this pressure.
Carried over from the Serco era
- Respectful staff-prisoner relationships that reduced the risk of violence
- Person-centred disciplinary hearings
- An excellent approach to work, education and gym
- Remand prisoners accessing the same activities as convicted prisoners, and offence-protection and other prisoners living and working together
Lost or strained
- Routine strip searching of everyone on reception as well as body scanning
- A reduced psychology team and programme access
- Regression on equality and diversity
- A complaints system in which complaints went missing
A new workforce and a changed role
In shortMost front-line staff chose the residential role, so operations staff were almost entirely newly recruited, with investment in training.
The inspection gives an unusually detailed picture of the workforce. Under the move, front-line staff were given a choice between the residential and operations roles and most opted for residential.
The large group of operations staff therefore had to be almost entirely newly recruited, with what inspectors called an impressive investment in training and good support.
Support for new staff
- Experienced staff mentored new recruits in reception
- The prison was introducing a formal mentoring scheme and leadership development
Changeover strain
- Several tasks done by residential officers elsewhere in the SPS, such as cell-sharing risk assessments and core screening, were still done by other staff
- The personal officer scheme was at an early stage, with officers concerned about confidence in the SPS records system
- Information about staff under TUPE arrived only 28 days before the changeover, leaving people anxious
- Assaults on staff were increasing, which inspectors linked to prisoners with deteriorating mental health managed under Prison Rule 41
Independent monitors in 2024-25
In shortMonitors found Kilmarnock a well-run, safe and orderly prison, with a tight new regime when staffing was low.
The Independent Prison Monitors (IPMs) reported that Kilmarnock continued to be a well-run prison that felt safe and orderly, with excellent daily purposeful activity for convicted and remand prisoners.
- A new regime that was very tight, with potential for cancelled activities, reduced mealtimes or less time in the fresh air when staffing was low, which management was monitoring daily.
- Reception busy but staffed by a small, courteous team.
- A peer support “Insiders” service that was valued but variable in availability.
- Induction delays of between two and six days depending on the day of admission.
- Management, they said, showed a clear and constant vision to maintain strong security and keep people safe.
Working at Kilmarnock
In shortKilmarnock officers are now SPS staff on SPS terms, in a prison still working through the transition.
Kilmarnock officers are now SPS staff on SPS terms. The SPS plans intakes through the year.
- Application
- Situational judgement and cognitive ability tests
- Group and written exercises and interview
- Pre-employment checks and a fitness test
Reading the 2025 report
Relevant positives
- Active mentoring of new recruits
- Investment in training
- The growing residential officer role
Balanced reading
- HMIPS said the transition held challenges the staff were still working through
- Crowding and the speed of change had affected the regime
- Crowding put pressure on the personal officer scheme
| Route | Start | Within three years |
|---|---|---|
| Residential Officer | £37,682 | £44,248 |
| Operations Officer | £30,789 | £34,878 |
Subject to pay progression.
Officer pay at HMP Kilmarnock
HMP Kilmarnock is run by the Scottish Prison Service, which sets its own pay and conditions outside the England and Wales review body. SPS recruits prison officers through two parallel routes, and from 1 April 2026 a Residential Officer starts on £37,682 (rising to £44,248 within three years) while an Operations Officer starts on £30,789 (rising to £34,878), both subject to pay progression. The SPS adverts we read list a 35-hour week for both. Allowances and the grade on a specific vacancy can differ, so read the live advert.
Latest inspection
No HMIP report for HMP Kilmarnock in the Inspectorate's feed. Scottish prisons are inspected by HM Chief Inspector of Prisons for Scotland, whose reports we have not parsed.
Working at HMP Kilmarnock and how to apply
SPS advertises all its establishments' vacancies on one careers site. Read the live advert for closing dates and assessment-centre details.
- SPS careers (official site).
- Official establishment page, including visiting and contact details.
- How to become a prison officer: eligibility, vetting, assessment centre, fitness test and training.
- Recruitment timeline tool and commute cost calculator.
Postcode: KA1 5AA. View on a map. GOV.UK gives no railway station for this prison.
Other prisons in Scotland
These establishments are in the same county or region (17 listed in Scotland). See all of them in one table.
Related guides
HMP Kilmarnock: frequently asked questions
What do officers earn at HMP Kilmarnock?
From 1 April 2026 an SPS Residential Officer starts on £37,682 (£44,248 within three years) and an Operations Officer on £30,789 (£34,878), both subject to progression. SPS adverts list a 35-hour week for both.
What type of prison is HMP Kilmarnock?
No official functional group was found for HMP Kilmarnock. Its official description reads: "500-cell prison; formerly operated by Serco, transferred to SPS on 17 March 2024 on contract expiry per SPS page."
How many prisoners can HMP Kilmarnock hold?
No verified operational capacity: SPS does not publish a comparable figure.
Has HMP Kilmarnock been inspected?
We found no HMIP report for HMP Kilmarnock (Scottish prisons are inspected by HM Chief Inspector of Prisons for Scotland, which we have not parsed).
How do I apply to work at HMP Kilmarnock?
Through the SPS careers site.
When did HMP Kilmarnock become a public prison?
The SPS says Kilmarnock transferred to the Scottish Prison Service on 17 March 2024, when the contract with Serco expired. It had been run privately for around 25 years, according to the Scottish Parliament’s research service. HMIPS later described its 2025 inspection as the first of a Scottish prison moved from private to public hands.
What did HMIPS conclude about HMP Kilmarnock in 2025?
After inspecting on 19 to 23 May 2025, HMIPS rated all nine standards generally acceptable. It praised the safe transfer and respectful staff-prisoner relationships but found 223 single cells converted to small doubles and strain on newly recruited staff and systems.
How big is HMP Kilmarnock?
The SPS describes a 500-cell prison, and its September 2025 response lists a design capacity of 501. HMIPS recorded that the operating model was based on 500 prisoners but the population quickly rose to 657 after the transfer. Healthcare is provided by NHS Ayrshire and Arran.
Sources and method
Data as at 3 October 2026; see our methodology. Independent of HMPPS, the Ministry of Justice and the POA; not legal or financial advice. Out of date? Tell us.
- SPS: HMP Kilmarnock establishment page (opened 2026-10-03)
- HMIPS: Report on Full Inspection of HMP Kilmarnock, 19 to 23 May 2025 (opened 2026-10-03)
- HMIPS: Independent Prison Monitoring annual report, HMP Kilmarnock, 2024-25 (opened 2026-10-03)
- Scottish Parliament Information Centre briefing SB 26-33, Prisons: development of the prison estate (11 June 2026) (opened 2026-10-03)
- SPS: Freedom of Information response HQ25224, 9 September 2025 (design capacity by establishment, HMP Highland and HMP Glasgow) (opened 2026-10-03)
- SPS: Prison Officer - Residential careers page (pay from 1 April 2026, selection stages, intake dates) (opened 2026-10-03)
- SPS: Prison Officer - Operations careers page (Operations Officer pay and duties) (opened 2026-10-03)
- SPS: Pre-Employment Checks (checks, fitness test standards) (opened 2026-10-03)
Not verified for this prison: HMIPS publication date of the May 2025 report was not recorded; it is dated by the inspection week.; No officer vacancy numbers or Kilmarnock-specific recruitment page were found.; No current prisoner count was found beyond the figures HMIPS recorded at inspection..