Insurance for Architects

Architects face professional, regulatory, contractual, construction, data and business-continuity risks. A design decision can affect cost, safety, compliance, programme and the future use of a building, while allegations may arise years after the work was completed.

Registered architects in business or practice are expected by the Architects Registration Board to hold adequate insurance, usually professional indemnity insurance, under the current Architects Code and supporting guidance. This guide summarises the insurance questions but does not interpret an individual practice’s regulatory duties or policy.

Quick answer

An architectural practice commonly reviews:

professional indemnity insurance that meets current ARB expectations and is appropriate to its work;
run-off arrangements for historic liabilities;
public liability insurance for office visitors, surveys and site attendance;
employers’ liability insurance for employees and workers within scope;
cyber insurance and security controls for plans, models, client and building information;
office, equipment and business interruption cover;
management liability and legal expenses where relevant;
project-specific, joint-venture or collateral-warranty requirements.

The practice should also consider its duties under construction and building-safety law separately from insurance. Start with the wider Business Insurance by Industry guide.

ARB professional indemnity expectations

ARB states that all architects in business or practice are expected to hold adequate insurance, usually professional indemnity insurance. Its current guidance explains that architects are expected to cover professional liabilities, that PII is claims-made and that cover varies by limit, loss type, excess and exclusions.

The practice should use the current ARB Code and PII guidance rather than relying on an old policy requirement or historic summary. Regulatory compliance and insurance availability can change, and the practice remains responsible for considering whether cover is adequate and appropriate.

Record:

the policy period and insurer;
limit and basis of cover;
excess and whether it applies to defence costs;
retroactive date;
run-off arrangements;
excluded or restricted activities and materials;
territorial and jurisdiction scope;
declarations made to ARB or clients;
any inability to obtain expected cover and the advice taken.

Professional indemnity scope

Architectural PII can address allegations arising from design, specification, advice, certification, contract administration and other professional services, subject to the wording. The Professional Indemnity Insurance guide explains claims-made cover and notification principles.

Check the policy against the practice’s work, including:

new build, refurbishment and conservation;
residential, commercial and public projects;
high-rise or higher-risk buildings;
cladding, fire safety and external-wall work;
basements, swimming pools or other specialist features;
interior design and product specification;
principal designer or lead-consultant roles;
contract administration and certification;
surveys and reports;
design-and-build novation;
overseas work;
joint ventures and consortiums.

Restrictions may be expressed through exclusions, endorsements, inner limits, higher excesses or notification requirements. The schedule and endorsements must be read with the main wording.

Claims-made cover, retroactive dates and run-off

ARB guidance explains that PII is written on a claims-made basis. A claim concerning old work may need to be notified to the policy in force when the claim or circumstance arises, subject to the wording and retroactive date.

Practices should therefore:

avoid gaps between policies;
preserve historic schedules and wordings;
notify circumstances promptly;
check continuity when changing insurer;
consider run-off when retiring, closing, merging or changing legal entity;
retain project records for an appropriate period;
ensure former work remains within the declared retroactive scope.

Run-off is not simply a final annual premium. The required duration, limit and terms depend on regulatory guidance, contracts, limitation issues and the practice’s history.

Construction design duties

Under the Construction (Design and Management) Regulations 2015, designers include organisations or individuals preparing or modifying construction designs. HSE guidance says designers must take account of pre-construction information, eliminate foreseeable health-and-safety risks where possible, reduce or control remaining risks and provide relevant design information.

These duties are operational and legal obligations, not merely insurance conditions. PII may respond to a civil allegation subject to terms, but insurance does not discharge the duty or prevent enforcement.

A practice should maintain evidence of:

design-risk decisions;
information received and assumptions;
coordination with other designers;
changes and residual-risk communication;
client instructions and scope;
competence and specialist input;
reviews and approvals.

Appointments, collateral warranties and novation

Architect appointments can materially change liability. Review:

standard of care;
fitness-for-purpose or absolute obligations;
liability cap and net-contribution clauses;
indemnities;
collateral warranties and third-party rights;
assignment and novation;
insurance limit and maintenance period;
deleterious-material and prohibited-material clauses;
intellectual-property licences;
building-information-model responsibilities;
dispute and governing-law provisions.

The insurance broker or adviser should see significant non-standard terms before signature. A contractual obligation to maintain a limit does not guarantee that the required cover is available on acceptable terms.

Subconsultants and joint working

Architectural practices may appoint engineers, specialists, technologists, visualisers and other consultants. Determine:

whether the client permits subcontracting;
which party contracts with each specialist;
responsibility for coordination;
required qualifications and insurance;
liability caps and indemnities;
document ownership and confidentiality;
claims notification and cooperation;
what happens if a specialist’s cover lapses.

The architect’s PII may cover liability arising from subconsultants only within the wording. Obtain and retain evidence rather than relying on an informal assurance.

Public liability, surveys and site attendance

Architects visit sites, inspect premises, conduct surveys and meet clients. Public liability can address accidental injury or property damage arising from these activities, while professional indemnity addresses professional financial-loss allegations. The Public Liability Insurance guide explains the distinction.

Disclose activities involving drones, destructive investigation, keys, access equipment, temporary installations or custody of client property. A visual inspection does not automatically include invasive survey work.

Employees and workplace risks

Most practices employing people need employers’ liability insurance, subject to the statutory framework. The Employers’ Liability Insurance guide covers minimum limits, exceptions and certificate records.

The practice must separately manage workplace, travel, lone-working and site-visit risks. Insurance does not replace risk assessment, training or safe systems.

Digital models, project data and cyber risk

Architectural practices hold drawings, models, specifications, personal data, access credentials and commercially sensitive project information. Appropriate data security and tested recovery arrangements are essential.

Review:

access to common data environments;
multi-factor authentication;
permissions and audit trails;
secure sharing with consultants;
backups and restoration testing;
version control;
ransomware response;
retention and deletion;
contractual cyber and data obligations.

The Cyber Insurance guide explains incident services, interruption and liability. Check whether professional claims caused by a cyber event sit under cyber, PII or both, and how the policies coordinate.

Office, equipment and interruption

A practice may need cover for premises, computers, servers, plotters, survey equipment, models and archives. Check replacement basis, off-site equipment, single-item limits and temporary relocation costs.

Business interruption calculations should reflect fee income, project pipeline, payroll, rent, specialist software, increased costs and the time needed to rebuild systems or relocate. Standard property interruption may not cover a cloud or cyber event without an extension or separate policy.

Choosing limits and excesses

Consider:

ARB guidance and declarations;
client and appointment requirements;
project size, type and complexity;
potential multiple claimants;
historic work and run-off;
defence costs;
whether the limit is each claim or aggregate;
inner limits for restricted work;
the practice’s ability to fund the excess.

A project fee is not a reliable maximum loss. Claims can include remedial design, delay, professional fees and wider project consequences, subject to legal causation and the policy.

Fair presentation and renewal

For non-consumer insurance, the duty of fair presentation requires material information to be disclosed clearly and accessibly. An architectural practice should carry out a reasonable search involving directors, project leads, finance and those responsible for risk and insurance.

Disclose changes in project type, turnover, claims, circumstances, contractual terms, territories, high-risk work, mergers and run-off exposure. The Duty of Fair Presentation guide explains the statutory framework.

Claims and circumstances

Potential circumstances include a client complaint, design error, certificate dispute, threatened adjudication, discovery of non-compliant details, serious cost overrun allegation or request for remedial work.

Follow the policy’s notification provisions before admitting liability or agreeing remedial costs. Preserve appointments, drawings, models, calculations, minutes, instructions, design-risk records, approvals and correspondence. The Professional Indemnity Claim Scenarios guide illustrates general notification issues.

Review triggers

Review cover when the practice:

accepts a new project type or higher-risk building;
signs a non-standard appointment or collateral warranty;
acts as principal designer or lead consultant;
enters a joint venture or is novated;
starts overseas work;
changes legal entity;
loses or appoints key specialists;
becomes aware of a complaint or defect;
prepares to close, merge or enter run-off.

Use the Business Insurance Review Checklist to document the review.

Next step

Compare the current ARB Code and PII guidance, appointment terms, project register, claims record and policy endorsements. Any uncertainty about regulatory compliance or a material restriction should be addressed before work begins or a renewal declaration is made.

Practice management affects insurability

Insurers may look beyond project type to the way the practice is managed. Useful evidence can include peer review, competence records, appointment review, design-risk procedures, quality systems, complaints handling and claims learning.

A proportionate practice file should show:

who can accept appointments and variations;
how non-standard terms are escalated;
how competence is matched to project complexity;
how specialist advice is obtained;
how designs and changes are reviewed;
how project records are stored;
how complaints and circumstances are reported;
how lessons are incorporated into future work.

Do not overstate a process on the proposal form. If review is selective rather than universal, describe it accurately and improve it where necessary.

Building-safety and higher-risk work

Building-safety responsibilities and insurance restrictions have developed rapidly. A practice should identify whether work involves higher-risk buildings, fire safety, façades, external walls or other activities subject to special scrutiny.

Check:

current competence requirements;
appointment and dutyholder roles;
information-management obligations;
policy exclusions and inner limits;
project-specific notification requirements;
availability of specialist advice;
whether historic work creates a known circumstance.

Do not rely on a generic architectural description to include restricted work. Confirm the exact endorsement position in writing.

Mergers, acquisitions and changes of entity

When a practice incorporates, merges, buys another practice or changes trading structure, historic liabilities can become unclear. Address:

which entity performed the old work;
which entity is insured now;
retroactive dates and acquired-practice cover;
run-off for discontinued entities;
transfer of project records;
notifications already made;
contractual assumptions of liability;
declarations to ARB and clients.

Legal and insurance advice may be needed before the transaction. A change of name is not always the same as continuity of insured liability.

Scenario prompts

A defect is discovered before a claim is made

The practice should consider whether it is a notifiable circumstance. Preserve the design record, notify in accordance with the wording and coordinate any urgent mitigation. Waiting for a quantified demand can prejudice a claims-made policy.

A client requests a collateral warranty late in the project

Review the beneficiary, duty, limitation period, liability cap, assignment and insurance-maintenance clause. Do not sign it solely because similar wording was used elsewhere.

A cyber incident corrupts project models

Follow the incident and recovery plan, preserve versions and determine whether professional work has been affected. Cyber and PII notification may both be relevant.

A subconsultant’s design is challenged

Notify the practice’s insurer where required, preserve the appointment chain and obtain the subconsultant’s policy details. The client may pursue the architect even if the specialist produced the detail.

Questions for renewal and ARB compliance

The practice should confirm:

that the current Code and guidance have been reviewed;
whether the declared limit and run-off arrangements remain adequate;
whether any restricted project type has been undertaken;
whether all claims and circumstances have been disclosed;
whether new appointments contain wider liabilities;
whether former entities and acquired practices are addressed;
whether policy exclusions conflict with current projects;
whether evidence can be provided to clients without misrepresentation.

Store the renewal declaration, broker advice, policy documents and any ARB correspondence together.

Documentation and limitation periods

Architectural allegations may arise long after practical completion. The practice should set a record-retention policy that considers appointments, deeds, limitation issues, regulatory requirements, insurer expectations and the need to defend future claims.

Retain the documents that explain decisions, not only final drawings. This can include instructions, design reviews, assumptions, coordination records, specifications, certificates, approvals and change history. Digital models should remain accessible in a usable format where reasonably necessary.

Document retention is not the same as concealing a known problem. A material complaint, defect or circumstance may need prompt notification under the PII policy.

Communicating insurance evidence

Clients often request a certificate or broker letter. Provide accurate evidence of the current policy without implying that every project risk or contractual obligation is covered. Note any material qualification required by the evidence.

Do not give a client the full policy wording without considering confidentiality, but ensure the practice itself has and reviews it. A certificate normally confirms limited facts such as insurer, period and headline limit; it does not override exclusions or endorsements.

Practice closure and succession planning

Before retirement or closure, identify all historic entities, projects, collateral warranties, complaints and notified circumstances. Arrange run-off, preserve records and appoint a contact for future correspondence.

Where another practice acquires work or staff, clarify whether it assumes liabilities and whether the insurance follows. Project Control, legal and insurance decisions should be documented rather than inferred later from a business sale or name change.

Keep regulatory and insurance reviews connected

When the Code, guidance, project duties or practice structure changes, review the PII position at the same time. Record who checked the effect, what advice was obtained and whether clients or ARB declarations need updating. A regulatory review and a renewal review should not operate as isolated processes.