East of England · England · NRM1 / NRM2 Housing Elements
Serving builders, specialist subcontractors, and developers working throughout Hertfordshire, our residential estimating service delivers transparent NRM1 / NRM2 Housing Elements bills of quantities calibrated around sound-insulated film and broadcast stages around leavesden and elstree, heritage garden city brickwork extensions, loft conversions, and transit-hub town-centre infill flats.
Local Engineering Context
Upper Cretaceous chalk sinkholes, flint bands, and stiff London Clay across St Albans, Watford, Stevenage, and Welwyn Garden City requiring rotary-bored piles and heave-cell voids.
Local Engineering Context
Letchworth & Welwyn Garden City estate-management design covenants, Hertfordshire SuDS attenuation tanks, and Part L/Part O triple-glazed acoustic thermal envelopes.
Local Engineering Context
Strict Hertfordshire Conservation Area frontage protection, railway-corridor acoustic hoarding along A1(M)/M1/M25 interchanges, and resident-permit crane timeslots.
Measurement & Deliverable Parameters
| Estimating Parameter | Technical Specification | Standard / Audit Basis |
|---|---|---|
| Measurement Section & Units | NRM1 / NRM2 Housing Elements measured in m2, m3, m, nr, item | Scaled GA plans at 1:50 / 1:100 or structural details in mm |
| Local Statutory Framework | Building Regulations (Approved Documents Parts A–S) & Building Safety Act (BSA) Gateways 1–3 | England statutory & local tender compliance notes |
| Wastage & Prelim Separation | Net quantities isolated with 5%–10% typical trade waste allowances | Hertfordshire County logistics and phased delivery allowances |
| Deliverables & Drawing Uploads | 100% open-formula Excel BoQ + colour-coded PDF overlays (up to 25 MB upload) | 24–48 hrs turnaround target for focused single-trade packages |
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.
Whether pricing a rear wrap-around extension in Kent, a loft dormer in London, or a 24-dwelling residential parcel in Yorkshire, we measure every domestic trade—from strip footings and party-wall steelwork to Part L insulation, roofing, kitchens, and external paving.
Every workbook provides net measured quantities in m2, m3, m, nr, item, colour-coded PDF drawing mark-ups, separated material vs labour lines, and clarifications covering Hertfordshire site requirements.
Yes. Existing removal, propping, waste skips, and make-good allowances are itemised separately from new-build elements.
Yes. You get an internal cost workbook plus a clean room/element summary tab structured for UK domestic tender proposals.
