Building Safety Act 2022: Cladding Cost Recovery and Leaseholder Protections for Landlords

The Building Safety Act 2022 (c. 30) was the legislative response to the Grenfell Tower fire and the subsequent identification of widespread combustible-cladding installations across the UK residential building stock. The Act creates a structured framework limiting how building-safety remediation costs can be passed from freeholders to leaseholders. The framework matters for buy-to-let landlords with flats in relevant residential buildings: the protections that apply depend on whether the lease is a qualifying lease under s.119, and the protections themselves differ as between cladding remediation (fully protected under Sch 8 para 8) and non-cladding remediation (capped under Sch 8 para 6 at £10,000 / £15,000 / £50,000 / £100,000 depending on circumstances).

This guide walks through the architecture in detail, separates the most-misreported features (cladding is fully protected, not capped at £10k; the 18m/7-storey HRB threshold is a different cohort from the 11m/5-storey relevant-residential-building threshold; BSA 2022 SI 2025/1368 is the Wales commencement order, not England), explains the post-31-October-2024 amendments via the Leasehold and Freehold Reform Act 2024 (SI 2024/1018), and sets out the tax-side treatment of remediation costs borne by landlords. For tax-side hooks across the broader regulatory cluster, see our companion pages on HMO and selective licensing compliance and on the tax implications of the Renters' Rights Act 2025.

What Buildings Are In Scope

The Sch 8 protections apply to "relevant residential buildings" as defined in BSA 2022 s.117. The definition requires the building to be:

• A self-contained building (or self-contained part of a building),
• That contains at least 2 dwellings,
• And is at least 11 metres in height OR at least 5 storeys.

This is a lower threshold than the Higher-Risk Building (HRB) definition under BSA 2022 s.65, which sets the bar at 18 metres or 7 storeys plus at least 2 residential units. The two cohorts have different purposes: the 18m/7-storey HRB cohort triggers the broader Building Safety Regulator regime under Part 4 (occupation-stage gateway requirements, accountable-person duties, golden-thread documentation). The 11m/5-storey relevant-residential-building cohort triggers the Sch 8 leaseholder cost-protection regime.

Confusing the two cohorts is one of the most common errors in landlord-side commentary. A 12m/5-storey block is a relevant residential building (Sch 8 protections apply) but NOT an HRB (the Part 4 regulator regime does not apply). A 25m/8-storey block is both.

Qualifying Leases: The Four-Condition Test

Sch 8 protections do not apply automatically to every lease in a relevant residential building. The qualifying-lease test in BSA 2022 s.119 requires four conditions, all four of which must be satisfied:

1. Long lease. The lease must be a long lease (typically more than 21 years; the precise definition incorporates the standard LRA 1967 long-lease test).
2. Granted before 14 February 2022. The 14 February 2022 date is the cut-off; leases granted on or after that date do not qualify for Sch 8 protections.
3. Individual leaseholder at 14 February 2022. The leaseholder at 14 February 2022 must have been an individual (or individuals jointly), not a corporate body. Limited-company-held leases fail this test.
4. Only-or-principal home OR ≤3 UK residential properties. The leaseholder must have used the property as their only or principal home at 14 February 2022, OR (if the property was a buy-to-let / second home) the leaseholder owned no more than 3 UK residential properties in total (including the property in question).

For portfolio landlords, condition 4 is typically the binding constraint. A landlord with 5 flats personally owned fails the ≤3 test unless one of the 5 is their only or principal home (in which case that property qualifies but the others may not, depending on whether the residency limb or the property-count limb is being applied).

Cladding Remediation: Fully Protected Under Para 8

The Sch 8 para 8 protection for cladding remediation is absolute for qualifying leases: no service charge can be levied on the leaseholder for cladding remediation. There is no monetary cap because the protection is total. The protection covers:

• Removal of unsafe cladding from the building.
• Installation of replacement cladding meeting current Building Regulations.
• Associated works necessary to the cladding remediation (scaffolding, surveyor fees, project management directly attributable to the cladding works).
• Temporary safety measures during remediation (waking watch where required).

The protection is the single most landlord-favourable feature of the Sch 8 regime for qualifying-lease holders. Where the lease qualifies, the cladding-remediation exposure is zero; the freeholder must recover the cost from the developer (under the para 2 waterfall), from a connected manufacturer, or from government cladding remediation funds (the Building Safety Fund, the Cladding Safety Scheme, or other sector-specific funds).

Non-Cladding Remediation: Caps Under Para 6

Non-cladding remediation costs (typical: fire-stopping defects, balcony defects, compartmentation defects, internal fire-alarm system failures, sprinkler system deficits) are capped under Sch 8 para 6 rather than fully protected. The caps are:

Property location	Property value at 14 Feb 2022	Non-cladding remediation cap
Outside Greater London	≤ £325,000	£10,000
Greater London	≤ £175,000	£15,000
Outside Greater London	£325,001 to £1,000,000	£50,000
Greater London	Above £325,000	£100,000
Outside Greater London	Above £1,000,000	£100,000

The cap is per leaseholder per lifetime, not annual. A leaseholder who has paid up to the cap on one round of non-cladding remediation may face further uncapped exposure on subsequent rounds; this is one of the more contentious aspects of the regime, and the LFRA 2024 amendments have tightened (without removing) the freeholder ability to pursue further pass-through.

The LFRA 2024 Amendments: SI 2024/1018

The Leasehold and Freehold Reform Act 2024 (c. 22) commenced via The Leasehold and Freehold Reform Act 2024 (Commencement No. 1 and Transitional Provision) Regulations 2024 (SI 2024/1018) on 31 October 2024. Several Sch 8 amendments took effect on that date:

• Shared-ownership qualifying-lease clarification. Shared-ownership leases (where the leaseholder owns a proportion of the lease and the housing association owns the remainder) now qualify for Sch 8 protections on the leaseholder's proportion, with the freeholder/housing-association responsible for the proportion they retain.
• Intermediate landlord chains. Where there is an intermediate landlord between the freeholder and the leaseholder (typical: long-leasehold investment vehicle holding head-lease, then sub-leases to occupier-leaseholders), the intermediate landlord's position is clarified for the purposes of the para 2 waterfall.
• Developer-pays-first waterfall tightening. The recovery hierarchy in para 2 has been tightened to limit freeholder ability to bypass developer-recovery and pursue leaseholders prematurely.
• Only-or-principal-home test refinement. The s.119(2) test now incorporates a clearer treatment of secondary occupiers (e.g. where the property was the leaseholder's home but they were temporarily absent at 14 February 2022 for work or medical reasons).

Portfolio landlords with flats in cladding-affected buildings should request from the freeholder a current Sch 8 assessment (showing which leases in the building have been classified as qualifying or non-qualifying, against what evidence) and a current cost-pass-through projection (showing how much remediation cost is being sought from non-qualifying leaseholders). Where the freeholder's assessment appears wrong (e.g. classifying a clearly-qualifying lease as non-qualifying), formal challenge under Sch 8 Part 2 is available.

The Developer-Pays-First Waterfall (Sch 8 para 2)

The para 2 waterfall establishes the recovery hierarchy for cladding remediation costs. The freeholder must seek recovery in this order:

1. Developer (where solvent and identifiable). The original developer of the building bears primary liability for unsafe-cladding remediation. The 2022 Building Safety Pledge (signed by approximately 50 major housebuilders) committed developers to fund cladding remediation on buildings they developed.
2. Connected manufacturer or component supplier. Where the developer is insolvent or unidentifiable but the cladding component manufacturer (or a connected entity) can be identified, the manufacturer is the next recovery target.
3. Government cladding remediation funds. The Building Safety Fund and the Cladding Safety Scheme (alongside several sector-specific funds for affordable-housing providers) provide funding where developer and manufacturer routes fail.
4. Limited freeholder cost-pass-through to non-qualifying leaseholders only. Only after these routes have been exhausted, and only against non-qualifying leases, can the freeholder consider the limited residual pass-through to leaseholders.

For qualifying leases, the para 8 absolute protection on cladding means the waterfall is irrelevant to the leaseholder's position: the protection is unconditional. For non-qualifying leases (corporate landlords, 4+ property landlords, post-Feb-2022 lease grants), the waterfall determines whether and to what extent cost-pass-through is available.

Tax-Side Treatment of Remediation Costs Borne by Landlords

For landlords who bear remediation costs (typical scenarios: non-qualifying lease in a cladding-affected building where the freeholder has passed through the cost; freeholder landlord paying remediation directly; landlord on the non-cladding portion above the qualifying-lease cap), the tax treatment turns on the capital-versus-revenue split.

Capital Improvements

Most cladding-and-fire-safety remediation work falls on the capital side because the remediation typically brings the building up to a higher specification than the original (replacing failed cladding with compliant cladding; adding compartmentation that did not previously exist; installing sprinkler systems where none were fitted). Capital expenditure adds to the CGT base cost of the property under TCGA 1992 s.38(1)(b). On eventual sale, the addition reduces the chargeable gain.

Revenue Repairs

Where the remediation work merely restores the building to its prior condition (typical: replacing a broken fire-alarm sensor with an equivalent unit; replacing damaged fire-rated doors with same-spec replacements), the cost is revenue and deductible against rental income under ITTOIA 2005 s.272 (accruals) or s.34 (cash basis). The boundary between capital and revenue is the same as for other building works; the specific BSA 2022 context does not change the general test.

Capital Allowances on Common-Parts P&M

CAA 2001 s.35 restricts capital allowances on plant and machinery within individual dwellings (the dwelling-house restriction). The restriction does not apply to common parts of multi-let buildings. New fire-alarm systems serving the building as a whole, sprinkler systems, emergency lighting in stairwells and lobbies, and similar P&M installed during remediation can qualify for capital allowances (Annual Investment Allowance or writing-down allowance depending on annual capex level). For HMOs the parallel position under the Wave 6 §25.7 analysis applies; for BSA 2022 relevant residential buildings the same s.35 / common-parts framework applies.

Section 24 Mortgage Interest Position

Remediation-related borrowing (e.g. a landlord taking a loan to fund non-cladding remediation above the Sch 8 cap) attracts the s.24 mortgage-interest restriction for personally-held residential lettings. The 20% basic-rate tax credit applies; no full deduction against rental income. For corporate landlords, the CIR (Corporate Interest Restriction) framework applies but typically does not bite for portfolios under the £2m group de minimis.

The Common Misconceptions to Avoid

"Cladding Is Capped at £10,000"

False. Cladding remediation on qualifying leases is fully protected under Sch 8 para 8 (no service charge at all). The £10,000 cap applies to non-cladding remediation in the lowest property-value cohort. Conflating the two is a frequent error.

"All Leases in a Relevant Residential Building Are Protected"

False. Only qualifying leases (the four-condition test under s.119) are protected. Corporate-landlord leases, 4+ property landlord leases, and post-14-February-2022 lease grants are non-qualifying.

"BSA 2022 SI 2025/1368 Commences English Provisions"

False. SI 2025/1368 is the Wales commencement order (the W. 225 designation confirms this). The English commencement chain runs through SI 2022/561 (No.1), SI 2022/787 (No.2), SI 2023/362 (No.3), and subsequent SIs.

"Higher-Risk Buildings Are 11m+ / 5 Storeys"

False for the BSA 2022 s.65 HRB definition (which sets the threshold at 18m or 7 storeys plus 2 residential units). The 11m / 5-storey threshold is the separate relevant-residential-building cohort for Sch 8 leaseholder protections.

"The Building Safety Levy Is Part of Leaseholder Protections"

False. The Levy is a developer-funded charge under the Building Safety Levy (England) Regulations 2025; it funds the wider remediation programme. It is not what limits leaseholder service-charge exposure under Sch 8.

Practical Position for Buy-to-Let Landlords

For buy-to-let landlords with flats in relevant residential buildings, the immediate practical questions are:

1. Is the building a relevant residential building? Check the building's height and storey count against the 11m / 5-storey threshold.
2. Is the lease a qualifying lease? Run the four-condition s.119 test against the leaseholder identity at 14 February 2022.
3. Is there active remediation work or planned remediation? Request from the freeholder a current Sch 8 assessment and cost-pass-through projection.
4. For cladding remediation on qualifying leases: the protection is absolute; no action needed beyond confirming qualifying status.
5. For non-cladding remediation on qualifying leases: the £10k / £15k / £50k / £100k cap applies; budget for the cap.
6. For non-qualifying leases: full cost-pass-through risk exists; engage with the freeholder on the para 2 waterfall position and any developer / fund recovery prospects.
7. Tax-side planning: work through the capital-vs-revenue split with an adviser; budget for CGT base-cost-only relief in most cases.

Worked Example: Three Flats in a 14m Cladding-Affected Block

To illustrate how the qualifying-lease test and the protection hierarchy operate, consider a 14m / 6-storey residential block where cladding remediation work is starting in 2026. The freeholder has identified £1.2m of cladding remediation cost and £400k of non-cladding fire-safety remediation cost across the 30 flats in the block. Three flats in the block are owned by Sarah, a portfolio landlord.

Flat 1: Sarah's Only Home (Sold to Tenant 2024)

Lease originally granted 2010 to Sarah, who occupied it as her only home until 2024 when she sold to a long-term tenant. At 14 February 2022 Sarah was the leaseholder and the property was her only or principal home. Qualifying-lease conditions all met. Result: cladding remediation fully protected under para 8 (£0 cost-pass-through); non-cladding remediation capped at £100k (Greater London, value above £325k). Sarah is no longer the leaseholder (sold in 2024) so the protection now attaches to the new leaseholder (subject to the new leaseholder also meeting qualifying-lease conditions on the s.119 14-February-2022 snapshot, which they may not because they were not the leaseholder at that date).

This illustrates the subtle point that qualifying-lease status is determined at 14 February 2022, not at the date of the remediation. Subsequent sales of the lease do not change the qualifying-lease classification, but the protection runs with the lease only where the post-2022 successors satisfy the relevant conditions in their own right. For most leasehold sales post-Feb-2022, qualifying-lease status is lost.

Flat 2: Sarah's Buy-to-Let (Held Since 2018)

Lease granted 2018 to Sarah personally. At 14 February 2022 Sarah owned this flat plus 2 other UK residential properties (3 total). Lease is a long lease, granted pre-Feb-2022, Sarah was the leaseholder at 14-Feb-2022, and Sarah owned ≤3 UK residential properties at that date. Qualifying-lease conditions all met. Result: cladding remediation fully protected; non-cladding capped at £100k. Sarah's personal exposure on this flat: £0 cladding + up to £100k non-cladding over her lifetime.

Flat 3: Sarah's BTL Held in SPV (Limited Company)

Lease granted 2020 to Sarah's BTL SPV (SP Properties Ltd). At 14 February 2022 the leaseholder was a company. Qualifying-lease condition (c) fails (leaseholder must have been an individual at 14-Feb-2022). Result: NOT a qualifying lease. The full freeholder cost-pass-through risk attaches. The SPV faces potential exposure on cladding remediation AND non-cladding remediation with no statutory caps. Recovery for the SPV depends on the para 2 waterfall (developer recovery, manufacturer recovery, government fund recovery) and any voluntary protection the freeholder may extend to non-qualifying leases.

This is the structural exposure created by incorporation in cladding-affected stock. SP Properties Ltd faces uncapped exposure where individual leaseholders in the same building face capped or zero exposure. The tax-side benefits of corporate ownership (Section 24 relief, separation of liability) must be weighed against this remediation-cost exposure on a per-property basis.

Portfolio Implications for Sarah

Sarah's total Sch 8 exposure across the three flats:

• Flat 1: sold 2024; Sarah no longer the leaseholder. New leaseholder's protection status determined by their own s.119 position.
• Flat 2: qualifying lease; £0 cladding exposure; max £100k non-cladding exposure over lifetime.
• Flat 3 (SPV): non-qualifying lease; uncapped exposure; full reliance on freeholder's developer-recovery waterfall.

For Sarah, the right defensive moves are: ensure the freeholder is actively pursuing the para 2 waterfall recovery routes; engage with the freeholder on whether voluntary protection can be extended to Flat 3 as a matter of commercial reasonableness; track the BSA 2022 implementing-SI commencement timeline; budget for the £100k non-cladding cap (and the uncapped SPV exposure) in cash-flow modelling.

Freeholder Engagement Strategy

Leaseholders typically engage with their freeholder on Sch 8 matters through the standard service-charge consultation process under Landlord and Tenant Act 1985 s.20 (where the cost exceeds the £250 per leaseholder consultation threshold). For BSA 2022 remediation, the freeholder must:

1. Provide a Notice of Intention to consult on the proposed works.
2. Provide an Estimate Notice setting out the estimated total cost and the proposed apportionment.
3. Allow a 30-day consultation period for leaseholders to respond.
4. Provide a Reasoning Notice explaining why the proposed contractor was selected.

For Sch 8-protected works the consultation process still applies but the leaseholder's protection means the consultation has limited practical effect: the leaseholder is protected from charge regardless of the consultation outcome. The consultation matters for non-qualifying leases where the cost-pass-through is uncapped.

Best-practice freeholder engagement from a landlord perspective:

• Request a current Sch 8 assessment. The freeholder should be able to provide a per-flat assessment of qualifying-lease status. Where the assessment is wrong, formal challenge is available under Sch 8 Part 2 (typically to the FTT Property Chamber).
• Request a copy of the developer-recovery position. If the freeholder has not pursued the developer or government fund recovery, the cost-pass-through may be premature.
• Request a breakdown of cladding vs non-cladding remediation costs. The 100% cladding protection vs cap-limited non-cladding split means the freeholder must justify the categorisation of each cost line.
• Engage early on contractor selection. Sch 8-protected leaseholders have less stake in contractor pricing than non-protected leaseholders but the consultation process is the same.

The Compliance Position in One Line

BSA 2022 Sch 8 fully protects cladding remediation on qualifying leases (no cap) and caps non-cladding remediation at £10,000 / £15,000 / £50,000 / £100,000 depending on circumstances. Non-qualifying leases (corporate landlords, 4+ property landlords, post-14-Feb-2022 lease grants) fall outside the protections. The LFRA 2024 amendments via SI 2024/1018 (effective 31 October 2024) tightened the developer-pays-first waterfall and clarified several qualifying-lease edge cases. Landlords with flats in cladding-affected buildings should determine qualifying status, understand the developer-recovery waterfall, and plan the tax-side treatment of remediation costs they ultimately bear.