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How Does Construction Act Adjudication Work for London Domestic?

Construction Act 1996 adjudication is a fast 28-day dispute resolution process for construction contracts — binding decision, enforceable in court. Available on JCT contracts and most construction agreements but NOT automatic on residential occupier contracts (must be contractually agreed). Typical cost £1,800–£4,500 + party costs. Quicker and cheaper than court but technical. Used for: payment disputes, variation disputes, final account disagreements, programme delays.

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What adjudication is

Adjudication is a dispute resolution process under Housing Grants, Construction and Regeneration Act 1996 (the 'Construction Act'). Process: party serves notice of adjudication; adjudicator appointed (typically from RICS, RIBA, or specialist panel) within 7 days; written submissions; decision within 28 days (extendable to 42 days with consent). Decision binding subject to court challenge; enforceable as court judgment. Cost £1,800–£4,500 in adjudicator fees (typically split or paid by losing party); add £950–£2,800 for legal representation; total £2,800–£7,500. Compare to court: 12–24 months; £10,000–£50,000 legal fees; same result. Adjudication speeds resolution but technical — typically requires legal/QS support. Best for: payment disputes (interim valuation, withholding); variation valuation disputes; final account disagreements; programme delay claims. Less suited to: complex technical defect disputes (better via expert determination); multi-party disputes.

02

Adjudication on domestic contracts

Construction Act adjudication is mandatory on all construction contracts EXCEPT those with a residential occupier — i.e. owner-occupier renovation contracts are EXCLUDED unless adjudication is contractually agreed. Most JCT residential contracts include adjudication clauses voluntarily — JCT Minor Works, JCT Intermediate, JCT Standard all incorporate adjudication. FMB domestic contracts also include adjudication. Bespoke contracts: verify adjudication clause exists. Without contractual adjudication, parties must resort to court or arbitration for binding decisions. At contract signing, ensure adjudication clause present — provides fast resolution route. Most adjudicators residential-experienced now; understand domestic disputes; balance technical and consumer perspectives. RICS Dispute Resolution Service, RIBA, Construction Industry Council Adjudication Procedure all maintain panels of residential-experienced adjudicators.

03

Process step by step

(1) Notice of adjudication served by claimant on respondent — names dispute, identifies adjudicator nominating body, requests appointment. (2) Adjudicator appointed within 7 days. (3) Claimant submits referral notice + supporting evidence within 7 days of appointment — written case, photographs, contract documents, valuations. (4) Respondent submits response within 14 days. (5) Adjudicator may request further submissions, site visit, or oral hearing — typically held within 14 days of referral. (6) Adjudicator issues written decision within 28 days of referral (extendable to 42 with consent). (7) Decision: includes findings of fact, legal analysis, monetary award (if any). (8) Enforcement: if loser doesn't pay within decision deadline, winner applies to Technology and Construction Court for summary judgment (typically granted within 4–8 weeks). Adjudicator's decision is binding pending arbitration or court — most parties accept and don't challenge.

04

Strategy and practical advice

Adjudication is fast and decisive — strong tool for cash-flow-critical disputes. Strategy: (1) Time matters — claimant chooses timing; refer when respondent under pressure (e.g. mid-project for ongoing payment dispute). (2) Quality of submissions matters — adjudicator decides on evidence presented; not court-style cross-examination. Strong written case with clear evidence wins. (3) Engage QS/lawyer for technical disputes — adjudicators expect commercially-aware submissions. (4) Don't refer ambiguous disputes — adjudicator will decline jurisdiction if dispute not clear. (5) Decision binding pending challenge — court challenge possible on narrow grounds (jurisdiction, natural justice) but rare to succeed. (6) Pay decision promptly even if appealing — failure to pay risks costs and reputation. (7) Most decisions hold up on later arbitration/court — adjudicator decisions are robust.

More questions

Related questions answered.

Can I use adjudication on my domestic contract?

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Only if adjudication clause included in contract. JCT residential contracts standardly include; FMB contracts include; bespoke must be checked. Without contractual adjudication, only court or arbitration available — significantly slower and more expensive. Verify adjudication clause at contract signing.

How much does it cost?

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Adjudicator fees £1,800–£4,500 (typically split or paid by loser); legal/QS support £950–£2,800; total £2,800–£7,500. Compare to court £10,000–£50,000+ and 12–24 months. Adjudication cheap relative to court, expensive relative to mediation (£1,500–£3,800). Choose based on dispute value and complexity.

Can I challenge an adjudicator's decision?

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Yes via arbitration or court but on narrow grounds: lack of jurisdiction, breach of natural justice, error of law (rare to succeed). Decision binding pending challenge — must be paid. Most challenges fail; arbitration/court usually upholds adjudicator. Strategy: accept adjudicator decision unless clear jurisdictional flaw.

How quickly does it work?

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28 days from referral to decision (extendable to 42 days with consent); plus 7 days appointment + 7 days referral preparation = total 6–8 weeks from notice to decision. Court enforcement of unpaid decision: 4–8 weeks. Total dispute-to-payment: 12–16 weeks typically. Compare to court 12–24 months.

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