Letter of appointment for consultants
Letters of appointment (or letters of acceptance, or letter contracts) are sometimes used to appoint consultants in cases when a client wants the consultant to start work quickly, while a full contract is being prepared.
The letter should put a time limit on its validity and make it clear a contract will supersede and replace anything expressed in the letter of appointment.
Ideally the letter should include:
- A brief description of the project.
- A scope of work to be undertaken.
- The fee (excluding VAT) to be paid within the time period, and when it is to be paid.
- Allowable expenses.
- The date for the start of work and the period covered by the letter.
- The right of the client to use material generated in the time period.
- A statement that the letter is an interim arrangement to be substituted by a contract.
- A statement that there is no guarantee to extend the appointment beyond the time period stated.
- The amount of professional indemnity insurance cover required for the project.
- The named staff or sub-consultants who will carry out the commission.
- The consultant’s reporting lines within the client organisation.
- A statement allowing termination of the agreement at will by either party, but with a fair proportion of the fee to be paid by the client as well as properly incurred and recorded expenses.
- A statement confirming that unresolved disputes will be settled by adjudication under English Law.
Letters of appointment may also be appropriate if a consultant is required for a very insubstantial or minor commission where a full-blown contract could be seen as heavy handed and off-putting. This also applies to small side-projects such as commissioning a sculpture from a particular artist. In such circumstances, many of the items listed above should be included in the letter, together with a programme and budget.
The appointment letter should be duplicated for the consultant’s retention and return. It should have an acceptance clause for the consultant’s signature at the end and the consultant should be asked to initial the foot of each page.
NB Contractors are treated slightly differently, using a letter of intent for temporary purposes prior to engrossment and execution of contract documents. See Letter of intent for more information.
[edit] Find out more
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Building Safety recap January, 2026
What we missed at the end of last year, and at the start of this...
National Apprenticeship Week 2026, 9-15 Feb
Shining a light on the positive impacts for businesses, their apprentices and the wider economy alike.
Applications and benefits of acoustic flooring
From commercial to retail.
From solid to sprung and ribbed to raised.
Strengthening industry collaboration in Hong Kong
Hong Kong Institute of Construction and The Chartered Institute of Building sign Memorandum of Understanding.
A detailed description fron the experts at Cornish Lime.
IHBC planning for growth with corporate plan development
Grow with the Institute by volunteering and CP25 consultation.
Connecting ambition and action for designers and specifiers.
Electrical skills gap deepens as apprenticeship starts fall despite surging demand says ECA.
Built environment bodies deepen joint action on EDI
B.E.Inclusive initiative agree next phase of joint equity, diversity and inclusion (EDI) action plan.
Recognising culture as key to sustainable economic growth
Creative UK Provocation paper: Culture as Growth Infrastructure.
Futurebuild and UK Construction Week London Unite
Creating the UK’s Built Environment Super Event and over 25 other key partnerships.
Welsh and Scottish 2026 elections
Manifestos for the built environment for upcoming same May day elections.
Advancing BIM education with a competency framework
“We don’t need people who can just draw in 3D. We need people who can think in data.”
Guidance notes to prepare for April ERA changes
From the Electrical Contractors' Association Employee Relations team.
Significant changes to be seen from the new ERA in 2026 and 2027, starting on 6 April 2026.
First aid in the modern workplace with St John Ambulance.
Solar panels, pitched roofs and risk of fire spread
60% increase in solar panel fires prompts tests and installation warnings.
Modernising heat networks with Heat interface unit
Why HIUs hold the key to efficiency upgrades.
























