Demolition & Enabling Works · NRM2 Sections 3–4 (Demolitions & Alterations)

UK Demolition, Soft Strip & Site Clearance Estimating

Detailed soft-strip, structural demolition, façade retention, slab grub-up, and arisings segregation schedules for UK redevelopment tenders.

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How is demolition measured under RICS NRM2?

Refurbishment and brownfield schemes start with demolition and enabling works. Measuring from existing GA plans, R&D asbestos survey reports, and structural demolition sequences, we quantify partition/ceiling soft strips, mechanical plant removal, wall breakthroughs, and hardstanding grubbing.

  • Separates clean timber/metal recycling streams, clean masonry rubble (crusher feed), and mixed general strip-out skips.
  • Highlights party-wall protection, dust/noise acoustic screens, and façade retention shoring allowances.

Which deliverables and drawings are involved?

  • Soft strip vs structural demolition BoQ
  • Rubble crushing vs offsite skips summary
  • Temporary weatherproofing & hoarding quantities

Drawings & Inputs Accepted

  • Existing building plans & elevations
  • Demolition vs retained mark-up drawings
  • Refurbishment & Demolition (R&D) asbestos survey (if available)

Measurement & Deliverable Parameters

How are UK demolition takeoffs structured for tender accuracy?

Demolition Estimating — UK Measurement Units, Deliverables & Workflow Specification
Estimating ParameterTechnical SpecificationStandard / Audit Basis
Work Breakdown & UnitsNRM2 Sections 3–4 (Demolitions & Alterations) in m2, m3, m, nr, tScaled PDF / DWG plans at 1:50 & 1:100 (dimensions in mm / m)
Waste & Prelim SeparationNet physical takeoff plus 5%–10% typical trade waste splitKeeps net order counts transparent for merchant tenders
Deliverable Workbook100% unlocked formula Excel + colour-coded PDF overlaysIncludes formal RFI log flagging drawing ambiguities
Turnaround & File Transfer24–48 hrs (domestic/single trade) · up to 25 MB uploads3–5 working days typical for multi-trade commercial tenders

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.

Where is demolition estimating typically applied across UK projects?

Commercial office Cat A soft stripsBrownfield industrial clearanceVictorian residential structural openingsRoof & masonry wing demolitions

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Demolition Estimating FAQs

Do you measure partial structural removals inside occupied or retained buildings?

Yes. Internal partition stripping, chimney breast removals, floor joist trimmer works, and masonry downtakings are all itemised clearly.

How do you handle asbestos removal if only an R&D survey is provided?

Licensed vs non-licensed asbestos items noted in the survey report are listed explicitly as separate quantified or provisional schedule items.

Can you calculate rubble volume for on-site Type 6F2 crushing recovery?

Yes. Masonry and concrete slab volumes suitable for crushing are broken out separately so you can offset imported aggregate costs.

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