NI Landlord Registration — mandatory since October 2023
Mandatory NI Landlord Registration was introduced by the Private Tenancies Act (Northern Ireland) 2022 and came into force in October 2023. All private landlords letting residential property in Northern Ireland must register with the Landlord Registration Scheme for Northern Ireland (landlordregistrationni.gov.uk). NIHE enforces the scheme. Failing to register is a criminal offence.
Notice to quit — NI's graduated notice periods
Northern Ireland uses graduated notice to quit periods based on tenancy length: 4 weeks (less than 5 years); 8 weeks (5-10 years); 12 weeks (over 10 years). There is no Section 21 equivalent in NI — a landlord must establish a ground for possession. Possession is sought through the County Court in Northern Ireland.
Rent increases — the 90-day notice requirement
Since the Private Tenancies (Rent Increases) (Northern Ireland) Regulations 2022, landlords must give tenants at least 90 days' written notice before increasing the rent. Rent can only be increased once per 12-month period. Tenants can challenge proposed increases at the Rent Assessment Panel for Northern Ireland.
HMO licensing and safety certifications in NI
The Houses in Multiple Occupation Act (Northern Ireland) 2016 (in force April 2019) requires all HMOs in Northern Ireland to be licensed by the relevant district council. The NI HMO threshold is 3 or more persons in 2 or more households — lower than England's 5-person threshold. Gas Safety Certificate requirements mirror those in Great Britain. Mandatory EICR requirements in NI have been consulted on but not yet confirmed as of 2026.