Substructure & Ground
What ground conditions drive Cardiff foundations?
Estuarine marine alluvium around Cardiff Bay paired with Welsh SAB statutory SuDS attenuation crates and permeable sub-bases.
Wales (Cardiff, Swansea & Regional) · Wales
Central Square civic/commercial complexes, Cardiff Bay mixed residential apartments, university science facilities, and residential extensions.
Substructure & Ground
Estuarine marine alluvium around Cardiff Bay paired with Welsh SAB statutory SuDS attenuation crates and permeable sub-bases.
Envelope & Regs
Coastal wind-driven rain specs across Taff/Bay facades, Welsh slate roofing, and high-spec commercial acoustic partitions.
Urban Prelims
Welsh SAB statutory drainage sign-off prior to commencement elevates civil sitework takeoff precision.
Measurement & Deliverable Parameters
| Estimating Parameter | Technical Specification | Standard / Audit Basis |
|---|---|---|
| Applicable UK Standards | Building Regulations (Wales) Approved Documents & Welsh SuDS SAB Mandatory Drainage Approval | Paired with Cardiff weather & envelope detailing |
| Measurement Precision | RICS NRM1 / NRM2 items measured from 1:50 & 1:100 drawings in m2, m3, m & t | Drawing reference and grid tags logged on every line |
| Wastage & Prelims | Net quantities + 5%–10% material waste split & city prelim notes | Welsh SAB statutory drainage sign-off prior to commencement elevates civil sitework takeoff precision. |
| Deliverables & Turnaround | 100% open-formula Excel + colour PDF overlays (24–48 hr target small jobs) | Upload drawing packages up to 25 MB per form request |
Calibration note: 1:50 and 1:100 architectural and structural drawings are scaled to 25 mm masonry tolerances and 100 mm thermal zones, isolating 5 percent to 10 percent wastage from net quantities.
Standards & Deliverables in Cardiff
Every estimate prepared for projects across Cardiff aligns with Building Regulations (Wales) Approved Documents & Welsh SuDS SAB Mandatory Drainage Approval. Public estates frequently utilise NEC4 frameworks alongside JCT Standard/D&B forms in Cardiff, Swansea, Newport, and Wrexham. All 32 trades are delivered as open-formula Microsoft Excel schedules paired with colour-coded PDF verification overlays and an RFI drawing-gap checklist.
Estuarine marine alluvium around Cardiff Bay paired with Welsh SAB statutory SuDS attenuation crates and permeable sub-bases. Separately, Welsh SAB statutory drainage sign-off prior to commencement elevates civil sitework takeoff precision. Our workbooks keep site prelims and waste handling isolated from net NRM2 build quantities.
For Cardiff, contractors most commonly commission Construction, Sitework & Civils, Concrete, Commercial, Roofing, alongside full multi-trade RICS NRM2 Bills of Quantities across all 32 building trades.
Upload scaled PDF, DWG, or IFC drawings up to 25 MB on our quote page—focused domestic or single-trade packs typically return within 24–48 hours, with multi-trade commercial tenders scheduled over 3–5 working days.