Architect, technologist or designer: who does what

Architect is a protected title in law. Under the Architects Act 1997 it is an offence to use the word architect in business or practice unless you are on the register kept by the Architects Registration Board. Architectural technologist, architectural designer, architectural consultant and building designer are not protected, and anyone may use them. That single distinction explains most of the confusion about who does what on a house project, and it does not tell you who will draw the better set of planning drawings.

What follows is the practical division of labour on domestic and small commercial work, and the checks worth making whichever route you take.

Competence and registration are related. They are not the same thing, and on a small project the difference between a good appointment and a poor one usually has nothing to do with either.

What registration covers and what it does not

Registration requires the prescribed qualifications, a period of practical experience and a final professional examination, followed by continuing professional development and adherence to a code of conduct. The Board maintains the register, investigates complaints about registered persons and can remove someone from it.

The protection is of the title, not of the activity. There is no reserved function in English law that only a registered architect may perform. Anyone may design a building, prepare drawings and submit a planning application.

So the practical value of registration is threefold. A minimum standard of education and examined competence. A complaints route that exists whether or not you sue. And a professional indemnity insurance requirement, which is the part that matters most when something goes wrong five years later.

Chartered membership of the Royal Institute of British Architects, shown as RIBA, is separate again and voluntary. It brings a further code of conduct and a chartered practice scheme with its own requirements on insurance, quality management and staffing.

Architectural technologists and what they bring

Architectural technology is a distinct discipline concerned with the technical performance of buildings: construction detailing, building physics, regulations compliance and the assembly of the thing that gets built.

Technologists have their own chartered institute and their own route to chartered status. On a domestic extension or a conversion, a chartered architectural technologist frequently produces a more resolved technical package than a general practice architect would at the same fee, because that is the centre of their training.

The trade-off is at the front end. Architects are trained primarily in spatial design and the resolution of a brief, and on a project where the layout is the difficult part, that training earns its money.

Neither profession has a monopoly on either skill. Plenty of technologists design excellent spaces and plenty of architects produce careful construction packages. Ask to see recent work of the same type rather than reasoning from the letters after a name.

Both institutes publish directories, and both maintain complaints procedures for their own members. Neither directory tells you whether a particular person is right for your house, which is why references on comparable work matter more than the listing.

Unregistered designers and drawing quality

A large share of householder planning applications in England are prepared by unregistered designers, and many of them are perfectly competent. Former technicians, experienced builders, surveyors and people who have drawn houses for twenty years all work in this space.

The variability is the problem. Where it goes wrong, it goes wrong in predictable places.

• Drawings without a scale bar, a north point or the drawing number the decision notice will reference
• Existing and proposed elevations that do not match the site, because nobody measured the neighbouring building
• Block plans at the wrong scale, which stops an application being validated
• No section through the boundary on a scheme where the neighbour relationship is the issue
• Planning drawings reused as building regulations drawings, or the reverse, so the approved scheme and the built scheme diverge
• No professional indemnity insurance, which means no remedy if the design turns out to breach a covenant or a permitted development limit

Ask for insurance details before appointing anyone. It is a fair question, it is quick to answer, and the answer tells you a great deal.

Matching the appointment to the project

The right appointment follows the difficulty of the project rather than the size of the budget.

Heritage work is the case where experience matters more than the label. A conservation officer will engage seriously with a designer who understands significance and can write about it, and will not engage with a set of drawings that treats a listed building as a shell.

Where the project needs a heritage argument, that argument goes in a Heritage Statement and it is a document with its own conventions, distinct from the Design and Access Statement that explains the design itself.

Checking insurance, references and scope

Do the same three checks whoever you appoint.

1. Confirm professional indemnity insurance is in place, ask for the level of cover, and ask whether it continues after the project ends.
2. Ask for two references on comparable projects, and ask one of them what went wrong and how it was handled.
3. Get the scope in writing, specifically whether it covers planning only, planning and building regulations, tender information, and site inspections during construction.

Point three is where most domestic disputes start. A fee quoted for planning drawings does not include building regulations drawings, structural design, party wall matters or site supervision, and a client who assumed otherwise discovers it at the worst moment.

Also agree who is responsible for the supporting documents. Technical reports required by the validation checklist, whether an ecology appraisal, a tree survey or a drainage statement, are usually outside a design fee, and someone has to commission them. Browse the report types to see what your project is likely to trigger before you sign anything.

Where each role stops

A designer of any description is not a planning consultant, a structural engineer, a party wall surveyor or an ecologist, and the good ones say so.

The clearest signal of a professional worth appointing is a willingness to name the things they will not be doing. Someone who offers to handle every aspect of a constrained project single-handed is either exceptional or has not understood it, and the second is more common.

If you need a specialist to review a technical draft before it is submitted, the professional directory is the route to a reviewer who can check and sign off the work.

PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.

This is general guidance, not legal advice. Check the position with your local planning authority or a qualified professional before relying on it.