The Remediation of Dwellings Damaged by the Use of Defective Concrete Blocks (Amendment) Act 2025 revises the 2022 Act to widen and regulate grant support, including an "increased grant" for qualifying expenditure incurred after 29 March 2024, and to permit review and replacement of approved remediation options where I.S. 465:2018 is updated. It creates bespoke procedures for attached and adjacent dwellings (including replacement dwellings in curtilage for disability adaptations), tightens valuation, certification and payment conditions, suspends payment time limits during reviews and appeals, and refines charging orders to allow primary and secondary charges with separate incremental release rules.

The Act also amends the Building Control Act 1990: certificates are re‑named (eg fire safety design certificates, access and use design certificates), and new regularisation notices, certificates of compliance on completion and enforcement procedures are introduced, including powers to open up works and to withdraw enforcement notices. It enables targeted information‑sharing (notably with SEAI, GSI and NSAI) and contains consequential amendments to tax and multi‑unit legislation.