Architectural BIM modeling, quantity takeoffs, cost estimates, and construction documentation from Revit models — for architects, developers, and GCs across all 50 US states. CAD to BIM conversion included. 24–48 hours.
The AEC industry's shift from CAD to BIM is not just a software change — it is a workflow transformation. An architectural CAD drawing shows geometry. An architectural BIM model contains data. The wall in AutoCAD is a line. The wall in Revit is a smart object that knows it is 8 inches thick, CMU construction, 12 feet tall, 420 square feet of face area, and costs $38 per SF to install. That embedded data is what makes BIM architecture services valuable — it enables automatic BOQ generation, automatic cost estimation, automatic shop drawing production, and automatic update propagation when design changes.
CES BIM architecture services bridge the gap between architectural design and construction cost control. We work with architects who need BOQ and cost data from their Revit models, developers who need independent cost verification from design models, GCs who need architectural quantities for bid packages, and design teams converting legacy CAD projects to BIM for owners requiring digital deliverables.
The difference between CAD and BIM for architecture goes far beyond 3D modeling. BIM is a data platform — every element knows its properties and every property can be extracted, scheduled, and priced automatically.
Level of Development (LOD) defines how much detail and data is in a BIM model. CES delivers architectural BIM services at every LOD — from concept massing to as-built documentation. The right LOD depends on your project phase and what you need the model to do.
| LOD | Model Detail | What CES Delivers | Accuracy | Best Phase |
|---|---|---|---|---|
| LOD 100 | Massing only — approximate area and volume | Concept cost model · SF-based budget CES | ±25–35% | Feasibility · Pre-design |
| LOD 200 | Approximate geometry — size, shape, location | SD estimate · System comparison cost CES | ±15–20% | Schematic Design |
| LOD 300 | Accurate geometry + material specification | Full BOQ · Cost estimate · Shop drawings CES | ±5–10% | Design Development |
| LOD 350 | Interfaces, connections, and coordination defined | GC bid BOQ · Coordination drawings CES | ±3–8% | Construction Documents |
| LOD 400 | Fabrication-level detail — shop drawing ready | Fabrication drawings · GMP cost audit CES | ±2–5% | Sub/GC Bidding |
| LOD 500 | As-built — field-verified conditions | As-built model · Record drawings CES | ±1–3% | Post-Construction |
We had a complete LOD 300 Revit model and needed a BOQ for the owner's lender package. CES extracted 620 architectural line items from our model in 36 hours — walls by material, floors by finish type, every door counted by specification. The lender approved the cost without a revision. That's the cleanest BOQ we've ever submitted.
We had AutoCAD drawings for a 180-unit apartment building and needed a Revit model for the owner's BIM mandate. CES converted our entire drawing set to Revit LOD 300 in 5 days, then delivered the BOQ and cost estimate from the model. Three weeks of work if we had done it in-house. CES did it in 5 days for a fixed price.
Our school project was $1.1M over budget at DD. CES ran BIM VE on our Revit model — cladding system, roof membrane, and flooring comparison. Three alternatives quantified from the model in 28 hours. We chose the cladding and roofing changes — saved $920K without changing the design intent. Board approved the revised budget the same week.
Submit your Revit model, AutoCAD drawings, or PDF plans — receive architectural BOQ, cost estimate, shop drawings, or CAD to BIM conversion in 24–48 hours. Fixed pricing. NDA protected.