Setting out surveys in Northern Ireland transfer agreed design positions and levels onto a construction site. 360 Surveys NI works with project teams that need a clear relationship between their drawings and the features being built. From Portadown, we cover projects in Belfast, Armagh, Craigavon and across Northern Ireland.
Whether the requirement relates to a building footprint, an access route or another defined part of the works, the starting point is current design information and an agreed site reference. Tell us what is being constructed, which stage the project has reached and when the contractor needs the setting out completed.
What setting out means on a construction project
A design describes where features are intended to be. Setting out turns that information into reference positions or levels that the construction team can use on site. The required points, marks and records depend on the design and the agreed scope.
This is different from surveying existing conditions. A topographical survey records what is present, while setting out works from the information approved for construction. An as-built survey can subsequently record completed features. Keeping these roles clear helps the project team commission the right service at the right stage.
Setting out should not be treated as an opportunity to resolve an unclear design informally. Where dimensions, levels or references conflict, the responsible designer needs to clarify the information before it is used on site.
Who needs this service?
Building contractors, civil engineering teams, developers and self-build clients may need setting out as part of their construction programme. The work can be a defined visit for a particular stage or a series of visits as different parts of a project become ready.
A small site near Armagh still needs clear design information and a usable reference. A larger development in Belfast may require coordination across several work areas and contractors. The appropriate service depends on the construction sequence and the decisions that rely on the marks provided.
If you are arranging the survey on behalf of the contractor, identify who will receive the site information and who can confirm that the area is ready. Good coordination is especially important when the person booking the visit is not the person managing the works on the day.
Drawings and information needed before the visit
Supply the current drawings, their revision references and the relevant design information. Explain which items are to be set out and identify the agreed coordinate reference and level datum. Include the specification or tolerances that the project requires rather than assuming a standard allowance fits every activity.
Where CAD information is available, send it alongside the issued drawings and clarify which documents govern the work. A convenient digital file should not be assumed to be the current construction issue simply because it can be opened by the surveyor.
Make sure the project team has resolved design queries before the visit. If a revision is issued after information has been supplied, communicate it clearly and identify the affected work. Managing versions is part of making the setting out useful to the construction team.
Site control and reference points
Site control provides the reference from which positions and levels can be related to one another. Before relying on existing points, the surveyor needs to understand how they were established and whether they remain usable for the agreed work.
Tell us about any existing survey control, benchmarks or project survey information. Their location, description and reference details matter. Points can be disturbed by construction activity, so an apparently convenient mark should not automatically be treated as reliable without appropriate checks.
The project team should also plan how reference points will be protected. If access routes, storage or excavation are likely to affect them, raise that at the outset. Maintaining an understood reference between visits helps avoid confusion when different stages of the project are built at different times.
Planning work around construction stages
Setting out is most useful when it is coordinated with site readiness. Confirm that the relevant area can be accessed and that the intended marks will remain useful for the activity that follows. A visit arranged too early or without preparation can lead to avoidable return work.
For a programme involving several stages, provide the expected sequence and identify where confirmation of dates is needed. Discuss whether the quotation covers one visit or a defined schedule. Changes in the contractor's programme should be communicated as soon as they are known.
Agree what will be handed over after each visit. That may include the locations set out, the drawing revision used and the relevant reference information, depending on scope. The contractor should know who to contact if marks are disturbed or if the design changes before construction takes place.
What it costs
Setting out survey cost depends on the work required, the readiness of the information, site conditions and the number of visits. A single defined stage differs from ongoing support across a changing construction programme.
Send the site address, current drawings, the items to be set out and the expected timing. Explain access restrictions, induction requirements and any project-specific deliverables. If control needs to be established or reviewed, make that part of the enquiry rather than assuming it is already available.
Ask the quotation to identify what is included and how changes or return visits will be agreed. A clear allocation of responsibilities for design information, site preparation and protection of marks gives everyone a more useful basis for planning the work and comparing proposals.
Accuracy, checks and responsibilities
The required accuracy should come from the project's needs and specification. We do not quote one universal figure for every setting out task, because the appropriate method, reference and checks depend on what is being constructed.
Discuss any particular requirements with the designer and share them before the survey is quoted. If a drawing does not identify information needed to set out an element, obtain clarification from the responsible party. The surveyor should not be expected to guess which of two conflicting dimensions was intended.
The project team also needs to understand the limits of the appointment. Setting out is not automatically structural design, construction supervision or certification of all completed work. Where independent checks or subsequent as-built measurements are required, agree those services explicitly.
Linking setting out with other surveys
A topographical survey can provide the measured site information used during design. Where existing structures affect the works, a building survey may provide plans, elevations or sections to an agreed scope.
On suitable projects, drone surveying can provide an additional view of site conditions. It answers a different question from physically transferring design positions to the site. Explain the intended use of each dataset so the methods and deliverables can be coordinated.
For later project stages, ask about as-built measurements and control surveys. Using compatible references across design, setting out and completed-work records helps the team compare information, provided the scope and responsibility for each stage are clearly agreed.
Setting out across Northern Ireland
Our Portadown base supports enquiries from Craigavon and Armagh as well as Belfast and the wider Northern Ireland region. Provide the precise site address and the on-site contact when requesting a quotation. For a development with several entrances or work areas, explain which access route the surveyor should use.
Occupied premises, restricted working hours and active construction operations can all affect visit planning. Tell us about those conditions early. If the programme is still developing, explain what is confirmed and what remains provisional rather than presenting an uncertain date as fixed.
Request a setting out quote with the latest drawings and a description of the stage to be set out. We can discuss the information required and the scope of the appointment before arrangements are made.
Frequently asked questions
What is the difference between setting out and a topographical survey?
A topographical survey records existing site features and levels. Setting out transfers agreed design positions and levels onto the site for the construction team to use. They serve different stages of a project.
What drawings should I send?
Send the current issued drawings, revision details, relevant digital design files and any required reference system or specification. Identify the items to be set out and who can answer design queries.
Can you return for several construction stages?
A sequence of visits can be discussed as part of the scope. Provide the construction programme and clarify which dates are confirmed so availability, responsibilities and pricing can be agreed.
What happens if a setting out mark is disturbed?
Tell the responsible site contact and arrange appropriate verification before relying on it. Do not assume a moved or damaged mark remains usable. Any return work should be agreed with the surveyor.
How is the price calculated?
The quotation reflects the scope, information provided, site conditions, control requirements and visits. Send current drawings and programme details so the required work can be defined before pricing.