The CAD Capacity Problem in UK Practice
UK architecture and engineering practices face persistent CAD resource constraints. A 2023 RIBA survey reports that 62% of UK practices have unfilled CAD technician positions. Salary expectations: £28,000–£35,000 (London roles command £35,000+). Hiring timelines: 8–12 weeks. The consequence: projects back up, junior architects spend time on drafting instead of design, and client delivery extends.
Typical mid-size practice (20 architects): needs 4–6 full-time CAD technicians. In-house cost: £120,000–£180,000 annually. Actual headcount: 2–3 (60% understaffed). The gap is filled by overtime (burnout risk) or delayed deliverables.
Outsourcing CAD addresses this bottleneck. A 3-person outsourced CAD team (costs £28,800/year) delivers the productivity of 5–6 UK technicians while maintaining BS 1192 compliance and quality assurance.
What Gets Outsourced: 2D, 3D, as-Built, and Conversion Work
2D Floor Plans and Elevations
Architects sketch designs or hand-draft sketches; CAD technicians convert to precision 2D drawings (floor plans, elevations, sections) in AutoCAD. Includes dimensioning, notes, and layer management per BS 1192. Turnaround: 24–48 hours per drawing set.
3D Modeling and Visualisation
Massing models, detailed 3D models, and renderings in Revit or SketchUp. Typically outsourced for complex projects (residential, commercial) where 3D coordination is required. Includes material assignment and lighting. Turnaround: 5–10 days for detailed models.
As-Built Surveys
Field team surveys existing building; CAD technicians convert measurements to as-built drawings. Common for heritage renovation and retrofit projects. Includes dimensional verification and photographic reference. Turnaround: 10–15 days (survey + drafting).
Format Conversion
Converting PDFs to CAD, raster-to-vector (scanned plans to editable CAD), or migrating between file formats (DWG to DXF to Revit). Useful for legacy projects and reuse of existing documentation. Turnaround: 3–5 days per project.
Tools: AutoCAD, Revit, MicroStation, and File Standards
AutoCAD (2D Drafting Standard)
Industry standard for 2D drawings. Treba CAD technicians use AutoCAD 2023+ and maintain your project standards (layer naming, line weights, text styles per BS 1192). Files are delivered as .dwg (editable) or .pdf (read-only).
Revit (BIM Modeling)
Building Information Modeling for coordinated design. Treba's Revit technicians create parametric models, families, and coordinate across disciplines. Delivered as .rvt files with proper work-sharing setup. Typical for detailed design and coordination phases.
MicroStation (Infrastructure/Civil)
Used in civil engineering and infrastructure projects. Treba maintains MicroStation 2023 for compatibility. Delivered as .dgn files with proper cell libraries and references.
BS 1192 Compliance
All drawings follow UK Building Information Modelling standards: layer naming conventions (e.g., AR-WALL-EXTN, MK-WALL-INT), line weights, text styles, and drawing sheet setup. Ensures compatibility across project teams and future handover. Treba conducts weekly compliance audits.
Quality Control and File Management
Quality Assurance Process
Every drawing is reviewed by a senior CAD technician before delivery. Checks include: dimensional consistency (no overlaps or gaps), layer naming compliance, annotation completeness, and file cleanliness (no redundant blocks or unattached text). 5% of all deliverables undergo secondary audit by your project lead.
File Management and Version Control
Outsourced CAD team uses your project folder structure (typically on OneDrive, Dropbox, or project server). All files are named per project standard (e.g., 'Project_Name_01_Ground_Floor_Plan_Rev_A'). Version control: old revisions are archived, current version is clearly marked. Handover includes a project file index with checksums.
Collaboration and Feedback
CAD team attends weekly design review calls (async or recorded). Feedback is logged in a shared document; corrections are implemented within 24–48 hours. Typical revision turnaround: 3 iterations before finalisation.
Timezone Advantage and Workflow
Kenya is GMT+3, UK is GMT (or GMT+1 in summer). This creates an overlap window (9 AM–12 PM UK time) ideal for real-time handoff: you send drafting requests in the morning, Kenya team works through their day, and you receive deliverables by your next morning. No waiting for overnight turnaround.
Workflow: Architect sketches design on Monday 4 PM (UK) → sends sketch and briefs CAD team (async or video call) → Kenya team works Monday evening through Tuesday morning → Revisions returned Tuesday 8 AM (UK time) → Architect reviews and iterates.
Result: 2–3 day cycles instead of 1-week cycles with domestic freelancers or agencies. Projects move faster, deadlines are met, and architects focus on design, not drafting.
Cost Comparison: UK CAD Technicians vs Outsourced
Comparison
| Line Item | UK (London) | Treba (Nairobi) | Saving |
|---|---|---|---|
| Cost Category | UK CAD Technician | Outsourced (Kenya) | Saving |
| Annual salary | £28,000–£35,000 | £9,600 | 65–72% |
| Professional development | £1,000/year | Included | 100% |
| Pension and benefits | £5,000 | £0 | 100% |
| Software licenses (CAD) | £3,000–£5,000/year | Included | 100% |
| Project productivity | 40–50 drawings/month | 120–150 drawings/month | 2.5–3x |
| Revision turnaround | 2–3 days | 24 hours | 2–3x faster |
| Total (practice, 150 drawings/month) | £70,000 (2 FTE) | £9,600/mo fee | 78% cheaper |
A mid-size practice generating 150 drawings/month needs 3 UK CAD technicians (£84,000–£105,000 annually). Outsourcing the same volume costs £9,600–£12,000/month (£115,200/year), but with faster turnaround and higher quality (BS 1192 compliance audits). Blended approach (50% in-house design, 50% outsourced drafting) is most cost-effective: combine senior architects with outsourced CAD teams.
Key takeaways
• 62% of UK architecture practices have unfilled CAD positions.
Outsourcing fills the gap without long-term hiring. • 2D drafting, 3D modeling, as-built surveys, and format conversion are ideal for outsourcing.
Turnaround: 24–48 hours (2D) to 10–15 days (as-built). • BS 1192 compliance ensures your drawings integrate seamlessly with team workflows and future handover. • Kenya timezone (GMT+3) overlaps with UK mornings, enabling fast iteration: sketch Monday → CAD Tuesday morning → revise Tuesday → finalised Wednesday. • Cost: outsourced CAD team (3 people, £28,800/year) delivers 2.5–3x the productivity of UK technicians at 70% lower cost.
Written by
Treba Research
Treba editorial team — expert analysis on outsourcing, compliance, and building distributed UK–Kenya teams.
