Civil Law and UAE Professional Liability of Engineers and Architects

1. Introduction

Professional liability of engineers and architects in the UAE arises when an engineer, architect, design consultant, or supervising professional fails to perform the professional obligations imposed by law, contract, professional standards, approved specifications, or the scope of appointment, causing loss or damage.

The subject has particular importance in construction because UAE law imposes a special form of decennial liability for serious structural defects.

A major point for 2026 is that the UAE Civil Transactions Law changed on 1 June 2026. Federal Decree-Law No. 25 of 2025 replaced the 1985 Civil Transactions Law. The construction provisions are now principally Articles 812–839, and the former Articles 880–883 on decennial liability have moved principally to Articles 821–824. (Mayer Brown)

Therefore, older judgments should normally be read using their old article numbers, while current pleadings should use the new provisions where applicable.

2. Meaning of Professional Liability

Professional liability means the legal responsibility of an engineer or architect for loss resulting from failure to perform professional obligations properly.

Typical allegations include:

defective architectural design;

structural design errors;

incorrect engineering calculations;

inadequate site investigation;

failure to comply with applicable technical requirements;

inadequate supervision;

failure to identify defective workmanship;

failure to issue appropriate instructions;

failure to warn the employer;

failure to obtain required approvals where this falls within the professional's contractual scope;

negligent certification;

defective specifications;

failure to coordinate engineering disciplines;

failure to detect dangerous construction defects.

The liability may be:

contractual;

statutory/decennial;

tortious, where the relevant requirements are satisfied;

professional/regulatory; or

a combination of these.

3. Current UAE Legal Framework

The principal framework consists of:

A. Civil Transactions Law

Federal Decree-Law No. 25 of 2025, effective 1 June 2026.

The important provisions include:

Articles 812–839 — construction/muqawala contracts;

Article 821 — decennial liability;

Article 822 — responsibility of the engineer according to the scope of the engineer's work;

Article 823 — invalidity of contractual exclusion or limitation of decennial liability;

Article 824 — three-year period for the decennial warranty claim. (LEXAI)

B. Professional and construction regulations

Engineers and consultants may additionally be subject to:

municipal requirements;

building codes;

Civil Defence requirements;

licensing requirements;

project-specific specifications;

approved drawings;

professional standards;

contractual FIDIC or other conditions.

C. Contract

The engineering appointment remains extremely important.

The court will examine whether the professional was appointed for:

design only;

supervision only;

design and supervision;

project management;

contract administration;

testing and commissioning;

certification;

specialist engineering;

architectural services.

4. The New Article 821: Decennial Liability

The most important provision is Article 821.

Where the subject of the construction contract is a building or fixed installation designed by an engineer and executed by the contractor under the engineer's supervision, the contractor and engineer are jointly responsible for a period of 10 years for:

total collapse;

partial collapse; or

defects threatening the stability, solidity or safety of the structure.

The provision applies even in circumstances such as defects in the land or employer approval of defective construction, subject to the statutory rules concerning temporary structures and other applicable exceptions. (Noura Lawyers)

This is commonly called decennial liability.

Simple formula

Construction + serious structural defect/collapse + statutory conditions → Article 821 liability

5. Why Decennial Liability Is Different From Ordinary Negligence

Ordinary professional negligence generally requires examination of:

Duty → breach/fault → damage → causation.

Decennial liability is different.

Its special statutory character means that the claimant does not simply have to prove that the engineer was careless in the ordinary sense.

The focus is on the statutory event:

Did the building suffer collapse or a defect threatening its structural stability/safety within the statutory period?

This is why UAE construction law traditionally treats decennial liability as a special form of mandatory construction warranty.

The new law preserves this basic structure. (IBA)

6. Article 822 — Engineer's Liability According to Role

Article 822 is especially important for architects and engineers.

The liability depends upon the professional's actual role.

A. Design-only engineer

Where the engineer's work is limited to preparing the design, the engineer's liability is principally connected to defects in the design.

For example:

incorrect structural calculations;

inadequate structural dimensions;

defective foundation design;

inappropriate load assumptions;

defective fire-safety design within the engineer's scope.

The engineer should not automatically be held responsible for every construction defect merely because the engineer prepared the drawings.

B. Supervising engineer

The new Article 822 expressly addresses supervision.

Where the engineer's role is limited to supervision of execution, the engineer may be jointly liable with the contractor for execution defects arising within the engineer's supervision.

This is an important clarification in the 2026 law. (awadalmheiri.ae)

Example

Contractor improperly installs structural reinforcement.

If the supervising engineer had a contractual and professional responsibility to inspect that work and the defect falls within the supervision scope, Article 822 can become relevant.

C. Design + supervision

This is the classic situation:

Engineer designs → contractor constructs → engineer supervises.

In such circumstances, the engineer's potential statutory exposure is broader because the engineer participates in both design and supervision.

7. Engineer Is Not Automatically Responsible for Everything

Professional liability must still be connected to the engineer's actual role.

For example, suppose:

Engineer A designs the structure.

Engineer B supervises electrical installation.

Contractor C constructs the building.

Specialist Contractor D installs an independent lift system.

A later lift malfunction does not automatically establish liability against Engineer A.

The court must identify:

the defect;

its technical cause;

the professional responsible for the relevant function;

the contractual scope;

the applicable statutory obligation;

causation.

This is particularly important in large projects with numerous consultants.

8. Article 823 — Liability Cannot Be Contractually Excluded

Article 823 provides that a contractual condition intended to exclude or limit the engineer's or contractor's decennial liability is void. (LEXAI)

Therefore, a clause such as:

“The consultant shall have no liability for structural defects after completion.”

cannot simply defeat statutory decennial liability where Article 821 applies.

Important distinction

This does not mean that every liability of an engineer is unlimited.

The statutory prohibition specifically concerns the mandatory decennial regime.

Ordinary contractual professional claims can involve different questions concerning:

scope;

limitation;

agreed compensation;

insurance;

negligence;

contractual caps;

subject to mandatory UAE law.

9. Article 824 — Three-Year Claim Period

Article 824 provides that a decennial warranty claim is not admissible after three years from the occurrence of the collapse or discovery of the defect. (LEXAI)

Therefore there are two important periods:

First period

The structural event must fall within the 10-year decennial period.

Second period

Once collapse occurs or the relevant defect is discovered, the statutory claim must be brought within three years.

Revision formula

10 years from delivery + 3 years from collapse/discovery = decennial claim structure

The exact operation of transitional rules should be examined carefully for projects and contracts spanning the 1 June 2026 changeover.

10. Transitional Problem: 1985 Code vs 2026 Code

This is especially important in current UAE litigation.

Before 1 June 2026, the relevant provisions were principally:

Article 880 — decennial liability;

Article 881 — engineer/design responsibility;

Article 882 — invalidity of exclusion;

Article 883 — limitation.

From 1 June 2026, the corresponding framework is:

Article 821;

Article 822;

Article 823;

Article 824.

The new Civil Transactions Law contains transitional provisions, so the court must determine which law governs the particular obligation, event and limitation period.

Consequently, a 2026 legal opinion should not simply cite “Article 880” as though it were the current provision.

11. Case Law 1 — Dubai Court of Cassation, Real Estate Appeal No. 539 of 2023

This is an important recent UAE construction decision.

The project owner alleged defects in the consultant's design and supervision, including problems concerning firefighting systems and Civil Defence requirements.

An expert panel examined the alleged design and supervision defects.

The courts concluded that the evidence did not establish the necessary design or supervision failures or structural defects that would trigger decennial liability. The Dubai Court of Cassation ultimately dismissed the appeal. (Turtl)

Principle

An engineer or consultant is not liable merely because a project later requires upgrading or modification.

The claimant must establish a connection between:

professional error → relevant defect → legally recoverable damage.

The case also demonstrates the importance of expert evidence in construction disputes.

Current relevance

The judgment interpreted the former Article 880 regime, but its evidentiary reasoning remains useful when analysing current Articles 821–822.

12. Case Law 2 — Federal Supreme Court, Civil and Commercial Appeal No. 416 of Judicial Year 27

The Federal Supreme Court considered the relationship between the architect/engineer and contractor under the former Articles 880 and 881.

The Court recognised the distinction between:

an engineer involved in design and supervision; and

an engineer whose responsibility is limited to design.

Where the professional's role is restricted to design, liability is connected to defects arising from the design rather than every defect in execution. (Wasel & Wasel)

Principle

Professional scope determines professional responsibility.

This is one of the most important principles for an architect defending a construction claim.

13. Case Law 3 — Dubai Court of Cassation, Civil Appeal No. 6 of 2004

The Court considered the scope of the former Articles 880 and 883.

It held, in substance, that the decennial guarantee does not cover every defect discovered in a building.

The defect must fall within the statutory category involving:

total or partial destruction; or

a defect threatening the durability/stability and safety of the building.

(Wasel & Wasel)

Principle

Aesthetic or minor construction defects should not automatically be treated as decennial defects.

Example

A minor paint defect:

normally not Article 821 decennial liability.

A structural defect threatening the building's stability:

potentially Article 821.

14. Case Law 4 — Abu Dhabi Court of Cassation, Civil and Commercial Appeal No. 577 of 2011

The Abu Dhabi Court of Cassation considered the statutory construction guarantee under the former Civil Code.

The judgment recognised the distinction between:

ordinary contractor responsibility for damage caused by construction work; and

the special decennial responsibility of contractor and engineer for serious structural problems.

The case also addressed the contractual relationship between the employer, contractor and subcontractor. (Wasel & Wasel)

Principle

The engineer's statutory responsibility must be analysed within the legal structure governing the particular construction relationship.

It also demonstrates that a subcontractor cannot simply be treated as though it automatically occupies the same statutory position as the main contractor vis-à-vis the employer.

15. Case Law 5 — Federal Supreme Court, Civil and Commercial Appeal No. 312 of Judicial Year 19, 1 December 1999

The Federal Supreme Court examined the construction-contract structure and subcontracting.

The Court distinguished the contractual relationship between:

employer and main contractor; and

main contractor and subcontractor.

(Wasel & Wasel)

Principle

The contractual chain matters.

An engineer must therefore identify:

Who appointed me?

What services did I promise?

To whom do I owe contractual duties?

Which statutory duties independently apply?

This is particularly important when a claimant attempts to join numerous project participants in a single professional-liability action.

16. Case Law 6 — Federal Supreme Court, Civil and Commercial Appeal No. 201 of Judicial Year 20, 7 March 2000

This case concerned construction payment and the engineer's entitlement to remuneration where work had not been completed in accordance with the relevant design.

The judgment illustrates that the engineer's entitlement to professional fees can be connected to proper performance of the professional obligation.

(Wasel & Wasel)

Principle

Professional liability is not only about damages.

It can affect:

entitlement to fees;

completion obligations;

correction of defective work;

contractual performance.

Thus:

Professional breach → possible damages + possible fee consequences.

17. Case Law 7 — Federal Supreme Court, Civil and Commercial Appeal No. 410 of Judicial Year 26, 16 June 2008

The Court considered construction contracts in which the contractor supplied materials and addressed responsibility for their quality and resulting damage.

Although directed primarily at contractor responsibility, the case is important for engineers because it illustrates the necessity of identifying which project participant controlled the relevant technical obligation. (Wasel & Wasel)

Principle

A claimant cannot simply identify a defective building and automatically attribute every defect to the engineer.

The court must identify the responsible contractual and technical actor.

18. Case Law 8 — Federal Supreme Court, Civil and Commercial Appeal No. 688 of Judicial Year 24, 31 May 2005

The Federal Supreme Court considered subcontractor responsibility.

The subcontractor must perform according to:

the subcontract;

agreed specifications;

applicable professional custom;

appropriate technical competence;

reasonable care.

A breach can give rise to responsibility toward the main contractor. (Wasel & Wasel)

Principle

Construction professional liability is often multi-layered.

For example:

Employer → Contractor → Subcontractor

and separately:

Employer → Engineer/Consultant

The existence of one relationship does not automatically erase the others.

19. Case Law 9 — Brookfield Multiplex Constructions LLC v DIFC Investments LLC & DIFC Authority [2016] DIFC CFI 020

This DIFC case concerned the Gate Building and falling stone cladding.

The defendants alleged that defective workmanship was widespread and that further falling cladding could create danger to people. The dispute also involved allegations of negligence against the engineer involved in design and oversight. (DIFC Courts)

Principle

Construction defects may create urgent risks requiring judicial intervention even before final damages are determined.

It demonstrates the relationship between:

construction defects;

engineering responsibility;

public safety;

urgent injunctive relief.

Status

This is a DIFC comparative authority, not a binding mainland UAE interpretation of the Civil Transactions Law.

20. Case Law 10 — BAM Higgs & Hill LLC v Affan Innovative Structures LLC [2021] DIFC CFI 106

This major construction dispute involved allegations including:

defective subcontract works;

missing design elements;

failure to provide quality records;

failure to remedy defects;

failure to conduct performance tests;

failure to obtain approvals.

(DIFC Courts)

Principle

Engineering/construction liability often requires analysis of several obligations simultaneously rather than treating “defect” as a single issue.

Relevant evidence can include:

design documents;

quality records;

testing;

inspection requests;

approval records;

correspondence;

defect notices.

21. Case Law 11 — Architeriors Interior Design LLC v Emirates National Investment Co LLC [2024] DIFC TCD 001/2024

This dispute involved alleged waterproofing defects and the parties' respective obligations during the Defects Liability Period.

The court examined the relevance of inspection requests and notices concerning defects. (DIFC Courts)

The appellate materials also emphasised the importance of establishing a connection between a defect notice and the work subsequently claimed as remedial work. (DIFC Courts)

Principle

Notice + defect + remedial obligation + cost evidence should form a coherent evidentiary chain.

This is highly relevant to professional-liability disputes involving supervision and defect certification.

22. Standard of Care of an Engineer

Outside the special decennial regime, an engineer's liability may involve the ordinary professional standard applicable to the agreed service.

The court may examine whether the engineer:

exercised appropriate professional care;

followed approved standards;

checked calculations;

properly reviewed drawings;

performed contractual inspections;

warned about apparent risks;

complied with the agreed supervision scope;

documented important instructions;

acted consistently with applicable regulations.

The standard is therefore not simply:

“Was the building perfect?”

The question can be:

“Did the engineer perform the professional obligation that he actually undertook, to the legally required standard?”

23. Design Liability

Design liability can arise from:

Structural design

load calculations;

foundation design;

structural members;

seismic considerations where applicable.

Architectural design

functional design;

spatial requirements;

specification;

accessibility requirements.

Mechanical/electrical design

system capacity;

integration;

safety;

performance.

Fire and life safety

fire systems;

emergency systems;

evacuation design;

Civil Defence requirements.

The professional should generally be assessed according to the scope of the appointment and applicable technical requirements at the relevant time.

This point was particularly significant in Dubai Court of Cassation Appeal 539/2023, where later regulatory developments could not simply be applied retrospectively to an earlier design. (Turtl)

24. Supervision Liability

Supervision does not necessarily mean that the engineer personally performs the contractor's work.

The engineer's responsibility is ordinarily connected to the agreed supervision function.

Questions may include:

Was the engineer required to inspect every stage?

Were inspections periodic or continuous?

Was the engineer required to approve materials?

Did the engineer receive inspection requests?

Did the engineer identify obvious defects?

Did the engineer issue warnings?

Did the engineer certify defective work?

Under the new Article 822, supervision-only responsibility for execution defects is expressly recognised. (Hadeed & Partners)

25. Engineer vs Contractor

The distinction is fundamental.

But responsibilities may overlap.

For example:

Defective reinforcement

Contractor may be responsible for improper installation.

Supervising engineer may also face liability if the defect should have been identified within the engineer's supervision responsibility.

26. Engineer vs Subcontractor

The new law contains an important clarification concerning recourse against subcontractors.

The decennial regime does not simply transfer automatically to every subcontractor. The contractor's recourse against a subcontractor is a separate issue requiring analysis of fault/breach and the relevant contractual relationship. (IBA)

This is particularly important for:

façade contractors;

MEP contractors;

waterproofing specialists;

piling contractors;

specialist structural contractors.

27. Expert Evidence

Engineering cases are highly technical.

Courts frequently rely upon expert evidence concerning:

structural calculations;

causation;

design adequacy;

construction defects;

technical standards;

cost of rectification;

whether a defect threatens structural safety.

But the expert does not replace the judge.

Correct hierarchy

Engineer/expert → technical opinion

Court → legal determination

Therefore an expert cannot finally decide:

“Article 821 applies.”

The expert may determine:

“The crack results from foundation movement and threatens structural integrity.”

The court determines the legal consequences.

28. Causation

In ordinary professional liability, causation is critical.

Consider:

Design error → construction defect → structural movement → property damage.

The claimant should establish the causal chain.

But construction projects frequently have multiple causes:

design;

soil conditions;

workmanship;

materials;

changes;

maintenance;

later modifications.

The court may therefore need to separate:

Design cause

from

execution cause

from

maintenance cause

from

external cause.

29. Employer Approval Does Not Automatically Release the Engineer

Under the decennial regime, employer approval of defective construction does not automatically eliminate the statutory responsibility of the contractor and engineer where Article 821 applies.

This principle existed under the former regime and has been substantially preserved. (awadalmheiri.ae)

Therefore:

“The owner approved the drawings”

does not necessarily answer the decennial-liability question.

However, outside mandatory statutory liability, employer conduct may still become relevant to contractual or ordinary liability questions.

30. Changes in Building Regulations

An engineer generally cannot be judged simply by applying a technical rule that did not exist when the relevant design was prepared.

This was important in Dubai Cassation Appeal 539/2023.

The dispute involved Civil Defence requirements that had changed after the original design and completion. The courts found that later regulations did not establish a defect in the earlier design merely because the regulatory requirements had subsequently changed. (Turtl)

Principle

Professional standard must ordinarily be assessed against the applicable requirements at the relevant time, subject to the particular contract and mandatory law.

31. Professional Liability and Contractual Clauses

Engineering appointments commonly contain:

limitation of liability;

indemnity;

insurance;

professional indemnity;

exclusions;

caps;

reliance provisions;

third-party restrictions;

dispute-resolution clauses.

These clauses may be relevant to ordinary professional claims.

But they cannot override mandatory decennial liability.

Remember

Ordinary contractual allocation → potentially enforceable

Attempt to exclude Article 821 liability → void under Article 823. (LEXAI)

32. Professional Indemnity Insurance

Insurance is not itself the source of professional liability.

The sequence is:

Legal duty → breach/statutory event → liability → damages → insurance response

An engineer cannot normally argue:

“I have professional indemnity insurance, therefore I am not liable.”

Insurance instead provides financial protection against covered liability.

The precise insurance response depends upon:

policy wording;

exclusions;

notification;

professional services definition;

retroactive date;

project coverage;

claims-made provisions;

insured parties.

33. Damages

Where ordinary professional liability is established, potentially recoverable loss can include, depending upon applicable law and proof:

reasonable repair costs;

rectification costs;

investigation costs;

replacement costs;

additional professional fees;

delay-related losses where legally recoverable;

other proven consequential losses.

However, the claimant must establish the legal basis and quantum.

The Phoebe v Peter [2026] DIFC SCT 039 decision illustrates the evidentiary distinction between actual rectification expenditure and unsupported lost-income claims. The court awarded proven hotel and rectification expenses but rejected unsupported lost revenue. (DIFC Courts)

34. Decennial Liability vs Ordinary Professional Negligence

35. Architects and Engineers: Different Professional Roles

A modern project may have:

architect;

structural engineer;

civil engineer;

MEP engineer;

fire consultant;

geotechnical engineer;

quantity surveyor;

project manager;

supervision consultant.

The court should not treat all of these professionals as interchangeable.

The central question is:

Which professional undertook the responsibility that corresponds to the alleged defect?

36. Example: Foundation Failure

Suppose a building develops major settlement.

Possible causes

defective soil investigation;

defective foundation design;

poor piling;

defective concrete;

groundwater;

contractor deviation from drawings;

inadequate supervision.

Potential responsibility may therefore be distributed between several parties.

The court may require expert analysis to determine:

Cause → professional responsibility → statutory/contractual duty → damage.

37. Example: Fire-Safety Failure

Suppose a building's fire system fails.

Potentially relevant parties could include:

fire-system designer;

MEP consultant;

supervising consultant;

specialist contractor;

main contractor;

testing/commissioning entity.

The Dubai Cassation 539/2023 case demonstrates why the court must carefully determine the precise design and supervision responsibility rather than assuming that the consultant is responsible merely because it was the project consultant. (Turtl)

38. Third-Party Claims

A particularly difficult issue arises where a person injured by a building has no direct contract with the engineer.

The professional's contractual relationship may be with the developer/owner.

A third party may therefore need to rely upon:

applicable tort rules;

statutory provisions;

specific consumer/property legislation;

other applicable legal mechanisms.

The old UAE jurisprudence has emphasised that the contractual responsibility of a contractor or engineer toward the employer does not automatically become contractual responsibility toward persons who are not parties to that contract. (Wasel & Wasel)

39. Decennial Liability Is Primarily Construction-Focused

Not every professional service provided by an architect falls automatically within Article 821.

For example:

interior decoration;

ordinary consultancy;

feasibility studies;

planning advice;

aesthetic advice;

may involve ordinary contractual professional liability rather than the statutory decennial regime, depending upon the actual contract and work.

The statutory construction regime should therefore not be applied mechanically.

40. Key Defences for Engineers and Architects

An engineer may defend a claim by establishing:

1. No defect

The design or supervision complied with the applicable requirements.

2. Outside contractual scope

The alleged responsibility belonged to another consultant.

3. Contractor deviation

The contractor departed from the approved design.

4. Later modification

The defect resulted from subsequent alterations.

5. Maintenance failure

The condition resulted from inadequate maintenance.

6. No structural threat

The defect does not fall within the Article 821 category.

7. External cause

The damage resulted from an independent external event where the law permits that defence.

8. Lack of causation

The engineer's conduct did not cause the damage.

9. Limitation

The claim was brought outside the applicable limitation period.

41. Importance of Project Documentation

Engineers should preserve:

approved drawings;

design calculations;

revisions;

inspection reports;

site instructions;

RFIs;

inspection requests;

non-conformance reports;

photographs;

test certificates;

material approvals;

Civil Defence correspondence;

authority approvals;

meeting minutes;

defect notices;

handover documents.

These documents can become decisive evidence years after project completion.

42. Practical Liability Analysis

For an engineer/architect claim, use this sequence:

Step 1 — Identify the contract

Who appointed the engineer?

Step 2 — Identify the scope

Design? Supervision? Both?

Step 3 — Identify the defect

What exactly is defective?

Step 4 — Classify the defect

Ordinary defect or structural/safety-threatening defect?

Step 5 — Determine applicable law

1985 regime or 2026 regime, considering transitional rules.

Step 6 — Obtain expert evidence

What technically caused the defect?

Step 7 — Identify responsibility

Engineer? Contractor? Subcontractor? Owner? Multiple parties?

Step 8 — Establish causation

Did the engineer's conduct cause the claimed loss?

Step 9 — Calculate damages

What loss is actually proven?

Step 10 — Check limitation

Especially the special Article 824 period for decennial claims.

43. Important Case-Law Principles at a Glance

44. Quick Revision Formula

Professional Liability

Professional Duty + Scope of Appointment + Breach/Statutory Event + Causation + Damage + Evidence = Liability

Decennial Liability

Building/Fixed Installation + 10 Years from Delivery + Collapse or Structural/Safety-Threatening Defect → Article 821

Engineer Scope

Design Only → Design Defects

Supervision Only → Execution Defects Within Supervision

Design + Supervision → Both Relevant Categories

Contractual Exclusion

Article 823 → No contractual exclusion/limitation of decennial liability. (LEXAI)

Claim Period

Article 824 → 3 years from collapse or discovery of the defect. (LEXAI)

45. Conclusion

UAE professional liability of engineers and architects operates through a combination of contractual responsibility, professional standards, ordinary civil liability and the special statutory decennial regime.

The most important development for current UAE practice is the new Civil Transactions Law effective 1 June 2026. The former Articles 880–883 have principally become Articles 821–824. Article 821 preserves the ten-year responsibility of the contractor and relevant engineer for collapse and serious structural/safety defects; Article 822 more expressly distinguishes design and supervision responsibilities; Article 823 invalidates contractual attempts to exclude or limit the statutory liability; and Article 824 provides the three-year period for bringing the decennial warranty claim. (Hadeed & Partners)

The central legal principle is therefore:

An engineer is not automatically liable for every defect in a building. Liability depends upon the engineer's professional role, the nature of the defect, the applicable statutory regime, contractual obligations, technical evidence and causation.

For exam purposes, remember:

DESIGN → SUPERVISION → DEFECT → CAUSATION → DECENNIAL LIABILITY → DAMAGES

Old regime: Arts. 880–883 → New regime: Arts. 821–824.