BATNA Development in Construction Disputes: Building Your Best Alternative
Negotiation

BATNA Development in Construction Disputes: Building Your Best Alternative

By Ashraf Ibrahim El Desoky · Jul 22, 2026 · 8 min read

BATNA Development in Construction Disputes

Understanding BATNA in Construction Context

BATNA — Best Alternative to a Negotiated Agreement — is your fallback position if negotiations fail. In construction, a weak BATNA means you negotiate from desperation; a strong BATNA gives you confidence and leverage.

Developing Your BATNA

Step 1: Identify All Alternatives

If a contractor is negotiating a variation claim with the employer, alternatives might include:

Filing a formal claim under FIDIC Clause 20, Referring the dispute to a Dispute Adjudication Board (DAB), Suspending works under FIDIC Clause 16.1 (if employer defaults), Proceeding to arbitration, Accepting a reduced settlement, and Walking away and terminating the contract (Clause 16.2).

Step 2: Evaluate Each Alternative

For each alternative, assess:

Cost: Legal fees, time, relationship damage, cash flow impact, Probability of success: Based on contract terms, evidence, precedent, Time: How long until resolution? DAB might take 84 days; arbitration 12-24 months, and Reputation impact: Will this affect future bids and relationships?.

Step 3: Select the Best Alternative

Rank alternatives by expected value (probability x outcome). The highest expected value becomes your BATNA.

Example: A $500,000 variation claim

Arbitration: 70% chance of full recovery, $100K legal cost, 18 months = expected value $250K, DAB: 80% chance of 80% recovery, $30K cost, 3 months = expected value $290K, and Settle at $350K now: 100% certain = $350K.

In this case, settling at $350K is better than the BATNA (DAB at $290K expected value), so the negotiation zone favours settlement.

Improving Your BATNA

Strengthen documentation: Better records = stronger claim = better BATNA, Build coalitions: Subcontractors, suppliers, other stakeholders may strengthen your position, Develop alternative suppliers: If negotiating with a sole-source supplier, develop second-source capability, Seek expert opinions: Independent engineer or QS assessment adds credibility, and Prepare legal groundwork: Ensure contractual notices are properly served.

Reservation Price and ZOPA

Reservation Price: The worst outcome you will accept — below this, you walk to your BATNA, ZOPA (Zone of Possible Agreement): The overlap between your reservation price and the other party's reservation price, and If no ZOPA exists, no agreement is possible — you must exercise your BATNA.

Common BATNA Mistakes in Construction

Overestimating BATNA: "I will win in arbitration" — without assessing legal costs, time, and risk, Underestimating opponent's BATNA: The employer may have stronger alternatives than you think, Ignoring relationship costs: A litigated dispute may win money but lose future contracts, Failing to improve BATNA before negotiating: Accepting a weak position because alternatives were not developed, and Revealing BATNA too early: Disclosing your fallback weakens negotiation power.

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