Interior Designer, Contractor or Registered Specialist in Hong Kong

Start with the work, then choose the role. A room can need design decisions, construction work, and a separate registered appointment. One company may offer several services, but its name or job title does not show which person holds responsibility for each item.

Use the Hong Kong renovation directory to form a shortlist. Send each provider the same job matrix and ask for answers against each row. This makes a missing deliverable or unnamed registered role visible before work starts.

Break the job into responsibilities

Write one row for each item, such as a new room layout, joinery, wall finish, plumbing change, electrical work, or work that may affect a wall or floor slab. Keep three responsibility fields:

Responsibility	Output to request
Design	Survey record, drawing, specification, finish schedule, or revision
Construction	Builder, supervisor, sequence, inspection point, and handover record
Registered work	Exact official role, name, registration number, register, and work scope

Do not assign a regulated category from a company description. The Buildings Department separates simple household renovation, minor works, and work involving the building structure in its domestic alteration guidance. Ask the provider which category it says applies and who will confirm that answer for the project.

Interview the interior designer

Ask the designer to list each promised output. Useful interview fields include the site survey, measured layout, design options, drawings, material or finish schedule, construction details, revision rounds, site visits, defect notes, and handover input. Record which output is included and who prepares or signs it.

Show the designer every row that could involve structural, minor, or electrical work. Ask for the exact person or contractor proposed for that row. The title “interior designer” does not replace the official roles named in the Buildings Department minor-works guidance. Keep the design appointment and any registered appointment as separate fields, even when one firm coordinates both.

Interview questions:

Which drawing or schedule will define each work item?
Who can change that document, and where will a revision be recorded?
Who will answer site questions from the builder?
Which rows need another named professional or registered contractor?
Which handover records will the designer review?

Interview the renovation contractor

Ask the contractor to mark the exact work it will build, supervise, subcontract, inspect, and hand over. Record the site supervisor, trade responsible for each row, sequence dependencies, protection work, acceptance point, variation record, and handover evidence. Leave a field unresolved when the contractor has not named the responsible party.

For a row said to be simple household renovation, read the Buildings Department domestic alteration guidance. It gives plastering, laying tiles, and repair or replacement of sanitary fitments as examples of exempted building works. The same guidance says those works remain subject to the relevant building regulations. Treat the examples as a question prompt, not a project classification.

Interview questions:

Which legal entity accepts the construction appointment?
Who supervises the site and each subcontracted trade?
Which drawing and specification version will the site use?
Which rows depend on a registered appointment or official submission?
What record will show inspection, correction, and handover for each row?

Name the registered role for regulated work

“Registered specialist” is a planning label in this guide, not one registration name. Under the Minor Works Control System, the Buildings Department names Authorized Person, Registered Structural Engineer, Registered Geotechnical Engineer, and Registered Inspector as Prescribed Building Professional roles. It identifies Registered General Building Contractor and Registered Minor Works Contractor as Prescribed Registered Contractor roles, subject to the class, type, and item for which the contractor is registered. See the department’s appointed-role guidance.

If the proposed work involves the building structure, the Buildings Department says the owner is required to appoint an Authorized Person and a Registered Structural Engineer, submit building plans, and use a registered contractor after approval and consent. Read the structural-work section and seek project advice before assigning the row.

Ask the provider to state the official role without shortening it. Record the person’s or contractor’s registered name, registration number, register type, and the work item covered. Do not use a business card, design portfolio, or general company description as a substitute for that record.

Check the exact register and work scope

Search the named person or contractor in the Buildings Department Registered Professionals or Contractors search. The search accepts a name, registration number, register type, or service item. For a Minor Works Contractor, it also provides class, type, Class III item, and business-location fields.

Save the query fields, result name, registration number, register type, scope fields, and check date. Match them to the exact job row. A name match does not answer whether the claimed class, type, or item covers that row.

For an electrical-work row, ask whether the provider claims Registered Electrical Contractor status. The EMSD Registered Electrical Contractors register lists contractors registered to carry out electrical work in Hong Kong and lets the public check contractor information and authenticity. Keep this check on the electrical row. Do not treat it as evidence of a Buildings Department registration.

Put responsibility into one job matrix

Use one row per work item and keep the provider’s answer beside your dated check.

Field	Entry
Work item	Location and exact proposed change
Design output	Drawing, schedule, detail, revision owner
Construction owner	Contractor, site supervisor, trade
Claimed category	Simple household work, minor works, structural work, or unresolved
Official role	Full role name stated by the provider
Register check	Register, name, number, class, type, item, check date
Open question	Missing role, scope mismatch, or answer still needed
Handover evidence	Record expected when the row is complete

Do not turn this matrix into a provider score. Resolve each missing field with a direct question and retain the written answer. Seek project advice when providers disagree about the work category or registered appointment.

Common questions

Do I need both an interior designer and a renovation contractor?

That depends on the outputs and appointments your job needs. List design and construction responsibilities by work item, then ask each provider which outputs it accepts. Keep gaps visible instead of assuming that one appointment covers both.

Does “interior designer” identify the statutory appointee?

No. The Buildings Department minor-works guidance names the Prescribed Building Professional and Prescribed Registered Contractor roles used under that system. Ask who holds the exact role for the work item.

Which registered role applies to minor works?

The role depends on the work and appointment. The Buildings Department lists four Prescribed Building Professional roles and two Prescribed Registered Contractor categories in its appointed-role guidance. Ask for the role and scope that apply to the exact row.

How do I check a minor-works contractor’s scope?

Use the Buildings Department register search. Record the registered name and number, then check the register type, class, type, and item shown for the contractor against the proposed work.

Can one company cover several roles?

A provider may propose several services. Record the named person or contractor for each role, the deliverable accepted, and the registration checked. Do not carry evidence from one role into another row without a matching record.

How should I handle an electrical-work registration claim?

Ask for the contractor’s registered name and check it in the EMSD Registered Electrical Contractors register. Save the result and date on the electrical row. Check any separate building-work role in the relevant Buildings Department register.

Sources

All information is compiled from sources available on the open internet.