Request compliance advice
Tell us the building, the duty or deadline you're managing and any existing reports, and we'll advise the proportionate next step.
Prefer to talk it through first? Call 020 7101 4590.
CDM Principal Designer London for written CDM appointments
A CDM Principal Designer London appointment is about pre-construction health and safety under CDM 2015: planning, managing, monitoring and coordinating design risk before it reaches site.
The role is normally needed where a project involves, or is likely to involve, more than one contractor. We set the written appointment, coordinate pre-construction information, challenge foreseeable design risk, and keep the health and safety file moving so responsibilities are recorded rather than assumed.
Domestic client projects still need clear dutyholder thinking. Homeowner duties may transfer under CDM, but the practical protection is a competent appointment that states who is managing the design-stage risk, what information designers need, and how residual hazards are handed to the principal contractor.
This role is distinct from the Building Regulations Principal Designer, which deals with design-stage compliance under the Building Regulations regime. Where a client needs design as well as CDM coordination, we route that through Architectural Design & CDM under distinct appointments.
CDM Principal Designer across London
The CDM principal designer coordinates health and safety matters during the pre-construction phase of a project. We ensure that designers consider health and safety risks in their designs, that a construction phase plan is prepared and that the health and safety file is compiled for handover.
We act as CDM principal designer for residential, commercial, public sector and mixed-use construction projects across London, integrating with the wider project team so CDM compliance is achieved practically and proportionately. We coordinate health and safety in design; we do not carry out the design or the construction works, and the CDM role is distinct from the separate Building Regulations Principal Designer role.
Under the Construction (Design and Management) Regulations 2015 the principal designer is appointed on any project with more than one contractor, and the role is to plan, manage and coordinate health and safety through the pre-construction phase — not to carry out the design or the works. On London projects that means engaging with the realities that make sites hazardous here: occupied buildings kept in use through the works, restricted access and neighbour interfaces, sequencing around party wall and structural constraints, and legacy hazards such as asbestos in older stock. We coordinate the design team so foreseeable risks are designed out or reduced, ensure pre-construction information is gathered and shared, and see the health and safety file compiled for handover. The CDM principal designer is a distinct statutory role and should not be confused with the separate Building Regulations Principal Designer duty, which concerns building-regulations compliance.
What to send, and what you receive
Tell us about the building and the duty or deadline you are managing and we will confirm a proportionate scope and a fee before you instruct.
What to send before we quote
- The property type and use
- Any current reports
- The known risk or issue
- Your required deadline
- The responsible person or contact
What you receive
- A written review, audit or assessment suited to the duty
- Findings and a proportionate, prioritised action plan
- Clear advice on what is and is not covered
Some areas need accredited specialists (for example UKAS-accredited asbestos or testing laboratories, or a structural engineer); we coordinate this and keep our advice independent. Ask what the report would include.
Scope of our cdm principal designer service
Pre-Construction Phase
Coordination of health and safety during design development, including risk assessment and design review.
Construction Phase Plan
Ensuring a suitable construction phase plan is prepared before the construction phase begins.
Health & Safety File
Compilation of the health and safety file for handover to the client at project completion.
Designer Coordination
Coordination of health and safety between all designers on multi-discipline projects.
When a CDM principal designer is needed
Clients usually come to us because the duty-holder role needs filling competently, not for a role title. These are the typical triggers.
- A project will involve more than one contractor.
- A refurbishment or remedial scheme is being designed.
- The client needs the CDM principal designer role filled.
- Design risk needs coordinating before work starts.
- A construction phase plan and health and safety file need to be in place.
- Designer responsibilities and risk information need coordinating.
- The project also needs procurement or contract administration.
- You need a competent, proportionate duty-holder appointment.
CDM principal designer across priority London areas
RICS regulated CDM principal designer support across London. Select an area for local project and building context.
CDM principal designer in Hampstead
NW3 — Camden.
View CDM principal designer in HampsteadCDM principal designer in Belsize Park
NW3 — Camden.
View CDM principal designer in Belsize ParkCDM principal designer in Highgate
N6 — Camden.
View CDM principal designer in HighgateCDM principal designer in St John's Wood
NW8 — Westminster.
View CDM principal designer in St John's WoodCDM principal designer in Marylebone
W1U — Westminster.
View CDM principal designer in MaryleboneCDM principal designer in Mayfair
W1K — Westminster.
View CDM principal designer in MayfairCDM principal designer in Knightsbridge
SW1X — Westminster.
View CDM principal designer in KnightsbridgeCDM principal designer in Chelsea
SW3 — Kensington and Chelsea.
View CDM principal designer in ChelseaCDM principal designer in South Kensington
SW7 — Kensington and Chelsea.
View CDM principal designer in South KensingtonCDM principal designer in Fulham
SW6 — Hammersmith and Fulham.
View CDM principal designer in FulhamCDM principal designer in Battersea
SW11 — Wandsworth.
View CDM principal designer in BatterseaCDM principal designer in Richmond
TW9 — Richmond upon Thames.
View CDM principal designer in RichmondOther instructions often considered alongside principal designer appointments
Building Regulations Principal Designer
The separate Building Regulations dutyholder role under the Building Safety Act 2022.
View ServiceProcurement & Tendering
For pre-contract support where contractor selection and appointment strategy still need to be established.
View ServiceContract Administration
For formal employer-side contract administration once the project moves into active delivery.
View ServiceProject Advisory & Contract Administration
For broader client-side support where the project also needs strategic coordination beyond the principal designer role.
View ServiceWho instructs this service
Housing Associations
CDM Principal Designer appointments on stock investment programmes.
View Housing AssociationsSchools & Academies
Principal Designer duties for estate works in education settings.
View Schools & AcademiesCommercial Property
CDM Principal Designer for commercial refurbishment and fit-out projects.
View Commercial PropertyCDM 2015 or Building Regulations Principal Designer?
The CDM Principal Designer is a defined duty-holder role under the Construction (Design and Management) Regulations 2015, focused on coordinating health and safety in the pre-construction phase. We do not carry out the building design or construction works, which remain the responsibility of the appointed designers and contractors, and we do not relieve other duty-holders of their own CDM duties. We accept the role only where we are competent for the project.
The Building Regulations Principal Designer is a separate dutyholder who plans, manages and monitors design work for compliance with the Building Regulations. One competent organisation may hold both roles, but each requires a clear appointment, scope and record. Use this page for the CDM 2015 Principal Designer role.
We identify where specialist structural or fire-engineering input applies and coordinate the appropriate specialists rather than conflating roles. We give proportionate advice and do not guarantee an outcome.
A representative CDM principal designer instruction
The following London inspection and reporting workflow breakdown shows how our RICS surveyors scope, inspect and report on real properties across London; see our published London surveying case studies for completed project records.
- Typical client: a freeholder, managing agent, school or commercial owner
- Typical project: a refurbishment, remedial or fit-out project with more than one contractor
- Typical issue: the client needs the CDM principal designer duty-holder role filled competently
- Typical instruction: CDM principal designer for the pre-construction phase
- What the client typically receives: coordinated pre-construction information, design risk review and a health and safety file at handover
- How it is typically used: to meet the client's CDM duties proportionately and keep design risk coordinated
- Related services: Project Advisory, Contract Administration, Procurement & Tendering
Managing a compliance duty or deadline? Send the property details and we'll advise the proportionate next step.
Send property detailsCommon questions about CDM principal designer services
What does a CDM principal designer do?
The CDM principal designer is the duty-holder appointed by the client under the Construction (Design and Management) Regulations 2015 to plan, manage and coordinate health and safety in the pre-construction phase. The role focuses on designing out and reducing risk, coordinating designers, and supporting the client to meet their CDM duties.
Is a CDM principal designer the same as the lead architect?
No. The principal designer is a defined CDM duty-holder role concerned with health and safety coordination in design. The lead designer or architect leads the design itself. The same organisation can sometimes hold both under separate, clearly defined appointments where it is competent to do so.
When is a principal designer required?
Under CDM 2015 a principal designer must be appointed where there is, or it is reasonably foreseeable that there will be, more than one contractor. The requirement depends on the nature of the project and the duties that apply, not simply its size.
Is this only relevant on large projects?
No. The need depends on the nature of the project and the applicable duties, not only its size. Refurbishment and remedial works involving more than one contractor can also require structured principal designer input.
Does the role continue into construction?
The exact scope depends on the appointment, but the role is principally focused on the pre-construction phase and design-stage coordination, with defined interfaces into the construction phase and the health and safety file at handover.
Do you carry out the design yourselves?
No. As principal designer we coordinate health and safety in design; we do not carry out the building design or the construction work, which are the responsibility of the appointed designers and contractors. Keeping the duty-holder role distinct keeps the coordination objective.
Can this be combined with wider project advisory?
Yes. Principal designer services often sit alongside broader project advisory, procurement and contract administration, where the client wants a joined-up approach, provided under separate clearly defined appointments.
Will the appointment clarify responsibilities across the design team?
Yes. A core part of the role is helping the client and the team understand how design risk information and responsibilities should be coordinated and communicated as the design develops, so duties are clear rather than assumed.
What do you produce as principal designer?
Typically pre-construction information coordination, design risk review and a clear record of significant residual risks, support for the construction phase plan being in place before work starts, and the health and safety file compiled for handover, proportionate to the project.
How does CDM Principal Designer relate to the Building Regulations role?
The CDM Principal Designer coordinates construction health and safety under CDM 2015. The Building Regulations Principal Designer coordinates design compliance under the Building Regulations dutyholder regime. They remain separate appointments even where the same competent organisation holds both.
Need a CDM principal designer for a London project? Call 020 7101 4590.
Enquire about CDM Principal Designer
Tell us briefly about the building and what you need. Your enquiry goes directly to our chartered surveying team.
We respond to enquiries within one working day.
Prefer to talk it through first? Call 020 7101 4590 or email enquiries@hampsteadcharteredsurveyors.co.uk.
CDM Principal Designer in Central London
Regional guidance for Central London building stock, client decisions and delivery constraints.
For construction work in the Square Mile, see our Principal Designer in the City of London guidance.
CDM Principal Designer in Central London
The CDM Principal Designer plans, manages, monitors and coordinates health and safety during the pre-construction phase where a project involves, or is likely to involve, more than one contractor. Central London projects require this role to bring existing-building hazards, occupation, public interfaces, access, temporary works and construction sequencing into design risk decisions from the outset.
View CDM Principal Designer Central London guidanceDedicated Central London service guides
Compare 59 dedicated service guides and 16 core neighbourhoods.
View the Central London hubCDM Principal Designer London: Deliverables & Transparent Fee Matrix
Every cdm principal designer london instruction is confirmed by a fixed written fee proposal once the property address, tenure and scope are reviewed. Starting fees begin from £1,250 plus VAT; all fee guides below are exclusive of VAT (plus VAT).
| Scope / Property Band | Deliverables & Technical Scope | Typical Turnaround | Transparent Fee Guide (Excl. VAT) |
|---|---|---|---|
| Band A — Standard / Single-Property CDM Principal Designer London | Pre-instruction document review, targeted site inspection or desktop appraisal, and structured RICS-aligned report. | 3–5 working days from inspection | From £1,250 plus VAT (domestic or minor commercial project CDM 2015 Principal Designer role) |
| Band B — Comprehensive CDM Principal Designer London Instruction | Full site inspection, photographic defect/evidence schedule, regulatory analysis and prioritised cost/action plan. | 5–8 working days from site access | From £2,250 plus VAT (notifiable F10 refurbishment, PCI pack, design-risk register & H&S File) |
| Band C — Complex, Heritage or Multi-Unit CDM Principal Designer London | Listed-building, higher-risk, multi-unit or portfolio instruction with senior director review and adviser coordination. | 7–12 working days (or agreed milestone) | From £3,950 plus VAT (complex multi-contractor, basement or block major-works CDM Principal Designer) |