A snagging list alone shouldn’t delay your practical completion certificate – UK case law is genuinely clear that minor, trifling defects don’t prevent certification, provided they don’t affect the building’s use or safety. Yet the final retention held back afterward, commonly 5-10% of your entire facility, can still sit unreleased for months, and understanding exactly why matters considerably before you rely on that final tranche in your own cash flow planning.
What Practical Completion Actually Means Legally
Our UK Development Finance hub covers the wider lending landscape; this piece focuses specifically on what happens at the genuine final stage of a scheme. Practical completion describes works completed free of patent defects, save for those so minor they can genuinely be disregarded – established through case law including William Press and reinforced in Mears v Costplan Services. A snagging list on its own shouldn’t block certification, though a significant non-compliance or missing information genuinely can. Standard JCT-style contracts don’t provide a precise definition of when works are practically complete, so whoever administers your specific contract must genuinely exercise professional judgement on this point.
Why Your Lender’s Retention Is Genuinely Different From Your Contractor’s
It’s worth understanding these are two entirely separate retentions, easily confused. Your building contract typically withholds 3-5% of each interim payment from your contractor, released roughly half at practical completion and half after the defects period. Your development lender, separately, commonly holds back 5-10% of the entire facility itself until the defects liability period expires or snagging is genuinely rectified – a considerably larger sum, and one worth factoring into your own cash flow projections from the outset.
The Defects Liability Period Genuinely Explained
Once practical completion is certified, the defects liability period begins, commonly running 6-12 months, with 12 months genuinely standard on many UK projects. During this window, your contractor remains obligated to return and rectify any notified defects at their own cost, and it’s exactly this ongoing obligation that justifies the lender continuing to hold retention rather than releasing it in full at practical completion itself.
A Genuine Worked Example
On a £200,000 contract with a 5% retention, £10,000 is withheld. Half, £5,000, releases at practical completion; the remaining £5,000 waits until the defects liability period ends, commonly 12 months later. Scale this to a development lender’s facility-wide retention – on a £2 million facility at 8%, that’s £160,000 genuinely sitting unreleased for potentially a year after your scheme is otherwise complete.
Why the Defects Liability Period Isn’t a Liability Cap
It’s worth understanding this clearly: the defects liability period genuinely doesn’t limit your contractor’s liability to that window alone. Latent defects – problems not reasonably discoverable at the time – can still give rise to legal claims under the Limitation Act for up to six years, or twelve years where the contract was executed as a deed. The defects liability period simply provides a structured mechanism for addressing known issues promptly, not a hard cut-off on liability itself.
The Genuine Insolvency Risk Worth Understanding
Unless your specific contract requires retention to be held in trust, retained cash generally isn’t automatically protected. If the paying party becomes insolvent before release, retention owed typically ranks as an unsecured debt in the administration – a real risk worth discussing with your solicitor, particularly on a facility-wide retention sitting for many months. It’s worth checking early in your process whether your specific lender or main contract offers any trust-based protection, since this genuinely isn’t standard across every agreement.
A Genuinely Significant Regulatory Change Worth Knowing About
The UK government confirmed on 24 March 2026 its intention to ban the withholding of cash retentions under construction contracts entirely, as part of a wider payment reform package. Implementation timing remains subject to consultation, so retention clauses genuinely still apply on current contracts – but it’s worth monitoring this reform if your scheme’s timeline extends well into the period this change is expected to take effect.
Why a Delayed Certificate Genuinely Ripples Through Your Whole Facility
Our Development Exit Finance page covers exactly the scenario worth planning for here – if practical completion is delayed or disputed, final development drawdowns, sales completions, and refinances can all genuinely stall simultaneously. A short-term exit facility can provide cover while any certification issue is resolved, worth discussing with your broker before assuming your original facility term will simply stretch to accommodate a delay.
Why Standard Senior Facilities Build Retention In From the Outset
Our Senior Debt page covers the core facility type most retention structures sit within; it’s worth understanding this final-tranche retention is genuinely built into your facility terms from day one, not a surprise addition introduced only once your scheme nears completion.
Why Refurbishment Schemes Follow a Genuinely Similar Principle at Smaller Scale
Our Refurbishment Loans page covers lighter works specifically; it’s worth knowing the same practical completion and retention mechanic applies here too, though against a genuinely shorter defects liability period and smaller retention sum given the reduced scope of works involved.
Structuring Your Facility With the Final Retention Genuinely in Mind
Our Structured Property Finance page covers tailoring a facility to your specific circumstances, worth discussing if your scheme’s exit timeline is genuinely sensitive to when this final retention actually releases, rather than assuming it lands exactly when your original programme suggested.
Getting Your Retention Timeline Genuinely Right Before You Commit
Given how much genuinely depends on your specific contract terms and defects liability period, it’s worth having a proper conversation about realistic release timing before you build your final cash flow projections around it. Get in touch with details of your scheme and its completion timeline, and we’ll help you understand what’s genuinely achievable.
Frequently Asked Questions
Can a snagging list delay my practical completion certificate?
Generally not on its own – case law establishes that minor, trifling defects don’t prevent certification, provided they don’t affect the building’s use or safety.
How much retention does a development lender typically hold back?
Commonly 5-10% of the entire facility, considerably more than the 3-5% per-payment retention your building contract itself withholds from your contractor.
How long does the defects liability period typically last?
Commonly 6-12 months, with 12 months genuinely standard on many UK development projects.
Does the defects liability period limit my contractor’s liability entirely?
No – latent defects can still give rise to claims under the Limitation Act for up to six years, or twelve for contracts executed as deeds.
Is retention money automatically protected if a party becomes insolvent?
Generally not – unless your contract specifically requires retention to be held in trust, it typically ranks as an unsecured debt in an administration.
What happens if practical completion is delayed or disputed?
Final drawdowns, sales completions, and refinances can all stall simultaneously – a short-term exit facility can provide cover while the issue is resolved.
Get in touch with details of your scheme’s completion timeline, and we’ll help you understand your genuine retention and exit position.
