Conceptual / Massing Model

Scope of Work

• Basic building massing

• Area / volume calculations

• Overall building height & footprint

• Approximate location of main elements (walls/slabs/roofs)

• No accurate dimensions

• Used for feasibility, conceptual design & zoning discussions

Deliverables

• Conceptual 3D model

• Preliminary floor areas

• Rough massing diagrams

• Approximate Geometry

• Scope of Work

• ·        Defined but approximate model elements

• ·        Generic sizes for walls, openings, slabs, rooms

• ·        Preliminary levels, grids, and structural layout

• ·        MEP major routing paths (approximate)

• ·        Basic quantity take-offs (approximate)

• Deliverables

• ·        Schematic model

• ·        Preliminary drawings

• ·        Design development support

Detailed Design / Accurate Geometry

• Scope of Work

• ·        Elements modeled with accurate size, location, quantity, orientation

• ·        Walls, slabs, beams, columns, openings fully dimensioned

• ·        All rooms/zones defined

• ·        Doors and windows modeled with correct dimensions

• ·        MEP systems modeled with proper sizes (ducts/pipes/cables)

• ·        Clash coordination ready

• Deliverables

• ·        Detailed construction model

• ·        Accurate drawings (plans/sections/elevations)

• ·        Quantity take-off (accurate)

Coordination Level (Interfaces Modelled)

• Scope of Work

• ·        All LOD 300 elements plus

• ·        Connections, interfaces & supports modelled

• ·        Penetrations, sleeves & openings for MEP coordinated

• ·        Equipment clearances & service zones applied

• ·        Structural–MEP–Architectural coordination complete

• ·        Zero-hard-clash model

• Deliverables

• ·        Coordinated BIM model

• ·        Clash-free model (Navisworks or IFC)

• ·        Interface drawings

• ·        Coordinated shop drawing set (if needed)

Fabrication / Shop Drawing Level

• Scope of Work

• ·        Fabrication-level modeling

• ·        Reinforcement modeling (rebar) for structural elements

• ·        Detailed duct/piping with fittings, valves, hangers, supports

• ·        Architectural detailing (profiles, assemblies, joineries)

• ·        Equipment installation details

• ·        MEP fabrication models for contractors

• Deliverables

• ·        Shop drawings (Architecture / Structure / MEP)

• ·        Fabrication schedules

• ·        Installation manuals & detailed sections

As-Built / Record Model

• Scope of Work

• ·        Field-verified model (post-installation)

• ·        Updated model with as-built dimensions

• ·        Exact locations of all services & components

• ·        Included serial numbers, model numbers, asset data

• Deliverables

• ·        As-Built BIM Model

• ·        Record drawings

• ·        Facility management data (COBie / O&M)