Unlike the residential sector where Welsh landlords must provide a massive "Written Statement" and various safety certificates within 14 days under the Renting Homes (Wales) Act 2016, commercial landlords operate under the principle of caveat emptor (let the buyer beware).

A commercial tenant in Wales is expected to conduct their own rigorous due diligence before signing a lease. However, the landlord is still legally mandated to disclose specific environmental, energy, and health & safety documentation up front, primarily governed by the Energy Performance of Buildings (England and Wales) Regulations 2012 (effective 9 January 2013) and the Control of Asbestos Regulations 2012 (effective 6 April 2012).

1. The Energy Performance Certificate (EPC)

The most heavily enforced statutory disclosure in Welsh commercial real estate is the Energy Performance Certificate (EPC).

• The Requirement: Under Regulation 6 of the Energy Performance of Buildings (England and Wales) Regulations 2012, before a commercial property can legally be marketed for lease, let, or sale in Wales, the landlord must commission a valid EPC and make it available free of charge to prospective tenants.
• Minimum Energy Efficiency Standards (MEES): The Minimum Energy Efficiency Standard (MEES) is governed by Regulation 27 of the Energy Efficiency (Private Rented Property) (England and Wales) Regulations 2015, which makes it unlawful for a landlord to grant a new commercial lease or continue an existing one if the property has an EPC rating of 'F' or 'G' (unless a valid exemption is registered).
• Future Tightening: Landlords in Wales should prepare for these standards to tighten drastically, with government targets aiming for a minimum 'C' or 'B' rating requirement by the end of the decade.
• The Display Requirement: If the commercial building exceeds 500 square meters and is frequently visited by the public, the valid EPC must be prominently displayed (e.g., in the reception area).

2. The Asbestos Register & Management Plan

Asbestos remains the most significant latent health hazard in older Welsh commercial real estate. Under Regulation 4 of the Control of Asbestos Regulations 2012, there is a legal "Duty to Manage" asbestos in non-domestic premises.

• Who Holds the Duty? The duty holder is whichever party has clear responsibility for the maintenance or repair of non-domestic premises through the lease. If it is a Full Repairing and Insuring (FRI) lease, the duty often transfers to the tenant upon signing.
• Pre-Lease Disclosure: However, before handing over the keys, the landlord must provide the incoming commercial tenant with the building's current Asbestos Register and Management Plan. This document details the location and condition of any known Asbestos Containing Materials (ACMs). Without this disclosure, the tenant cannot safely manage the risk or execute a build-out.

3. Fire Risk Assessments (FRA)

Under Article 9 of the Regulatory Reform (Fire Safety) Order 2005 (as amended by Section 156 of the Building Safety Act 2022), a "Responsible Person" must carry out a comprehensive Fire Risk Assessment (FRA) and record the assessment and fire safety arrangements in full in writing, regardless of the number of employees or the size of the business.

• Multi-Let Buildings: In a multi-let Welsh office building or shopping center, the landlord is the 'Responsible Person' for the common areas (lobbies, stairwells, shared fire alarms). The landlord must maintain and disclose the overall building FRA to all commercial tenants to ensure cohesive evacuation strategies.
• The Demised Premises: The incoming commercial tenant becomes the 'Responsible Person' for their specific leased suite and must generate their own localized FRA based on their business operations. Since 1 October 2023, this assessment and all fire safety arrangements must be recorded in writing.

Title and Legal Pack (CPSEs)

While not a unified "disclosure packet," during lease negotiations, the landlord's solicitors must provide the tenant's solicitors with a comprehensive legal pack. This typically includes:

• Commercial Property Standard Enquiries (CPSEs): A lengthy, standardized questionnaire the landlord must answer truthfully (subject to the Misrepresentation Act 1967) detailing everything from known boundary disputes with neighbors to the presence of Japanese Knotweed.
• Title Documents: Providing proof from HM Land Registry (Wales Office) that the landlord actually owns the property and possesses the legal right to grant the lease.

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