Building Regulations (Approved Documents Parts A–S) & Building Safety Act (BSA) Gateways 1–3
Estimating services supporting residential developers, commercial fit-out contractors, and industrial D&B teams across all nine English regions.
Procurement & Contracts
Predominantly JCT Design & Build 2016/2024 and JCT Standard Building Contracts in commercial/residential, alongside NEC4 Option A/B for infrastructure and public-sector frameworks.
Weather & Technical Standards
Updated Approved Document Part L, Part O overheating mitigation, and Part F ventilation drive significantly tighter envelope tolerances, MVHR ductwork, solar-control glazing, and continuous thermal-break insulation detailing.
Measurement & Deliverable Parameters
| Estimating Parameter | Technical Specification | Standard / Audit Basis |
|---|---|---|
| Regulatory System | Building Regulations (Approved Documents Parts A–S) & Building Safety Act (BSA) Gateways 1–3 | Applied to architectural & structural drawings across England |
| Procurement Formats | JCT Design & Build, Traditional, SBCC & NEC4 schedules | Structured to RICS NRM1 / NRM2 in m2, m3, m, kg, and nr |
| Waste & Prelim Split | 5%–10% typical trade waste isolated from net build items | Allows contractors in every UK county to verify merchant & labour rates |
| Workbook & Turnaround | 100% open-formula Excel + 24–48 hr target for small residential packages | Supports drawing uploads up to 25 MB via encrypted quote portal |
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.
Yes. Where schemes involve tall residential or mixed-use blocks exceeding 18m/7 storeys, our schedules flag passive firestopping, BS 9251 sprinklers, and Gateway 2 specification clarifications distinctly.
Yes. Cavity barriers, foil-taped PIR continuous layers, solar-control glazing ratings, and MVHR ventilation routes shown in Stage 4 packs are all quantified.
