BIM Specialist — Cost-Optimized Full Coordination “Digital Twin” (Revit + Navisworks)

Company: Urban Perch / Nest Homes (Central Florida)Project Type: ~10 single-family homes per year (starting with one pilot ~6,000 sf)Engagement: Fixed price per home + hourly for out-of-scope revisions

Objective

Create a fully coordinated BIM model of our single-family homes (Architecture / Structure / MEP), run house-wide clash detection, and deliver actionable issue logs and exports we can use for preconstruction, shop-drawing checks, and estimating. We already have plans; we need coordination excellence, not just drafting.

Scope & Deliverables (Standard, Cost-Optimized)

Modeling (Revit, LOD 300–350 where it impacts coordination)

Architecture: walls/partitions, floors/ceilings, roofs, stairs, soffits/chases, equipment closets, major openings.

Structure: foundations (schematic), bearing walls, beams/headers, columns, joists/trusses (schematic depth/zones), major penetrations.

MEP:

Mechanical: AHUs/FAUs, returns, trunks + primary branches, key diffusers/registers in all rooms.

Plumbing: stacks/vents, hot/cold trunks, fixture carriers where relevant, dryer/hood/chimney routes.

Electrical: main panels, feeders, primary conduits in conflict zones; fixture placeholders on RCPs for coordination (not full lighting design/circuiting).

Clash Detection (Navisworks Manage)

Search sets + rulesets (hard/soft clashes; clearance zones for AHUs, panels, cleanouts).

Two passes: full house clash run + one coordination re-test.

Issue Register (CSV + PDF): element IDs, location, screenshots, severity, responsible trade, recommended fix.

Sheets & Views

Whole-house RCPs (coordination-grade, not polished for permit).

Sections through corridors, stairs, mechanical rooms, over-garage rooms, kitchens, laundry, and any flagged tight zones.

Saved viewpoints in NWD/NWC.

Exports & Handover

Revit (.rvt) with clean worksets/naming; IFC, NWC/NWD, DWG, PDFs.

Quantity schedules (CSV) for major systems/elements (coordination-grade counts/lengths).

15–20 min Loom walkthrough (model organization, clash sets, key resolutions).

Inputs We Provide

Latest architectural, structural, and MEP PDFs + DWGs.

Equipment cut sheets (AHUs, ERVs, water heaters, panels, major fixtures).

Our naming/workset standard (or adopt yours—must be consistent).

Target dates and a weekly coordination window.

Quality Bar (How we’ll judge success)

No unresolved hard clashes after re-test; soft-clash risks noted with clear fix options.

Practical thresholds (e.g., ~¾" hard clash; manufacturer clearance zones).

Readable, prioritized issue register (cost/schedule impact).

Clean model hygiene (families, parameters, worksets, view templates).

Cost Controls (Please adhere)

To keep this cost-effective without losing quality:

Use stock/generic families unless a clash hotspot demands custom.

Reuse your templates, Dynamo QA scripts, view creation automation, and search sets.

Two iterations only (clash pass + re-test) included.

No option sets or alternates in the pilot.

Sheet output is coordination-grade, not a permit set.

If a decision would push budget, propose the leanest acceptable alternative first.

Timeline

Pilot: 2–3 weeks from kickoff to final handover (we’ll flex for genuine complexity).

Weekly 30-min check-in during active work.

Budget & Milestones

Bid as a fixed fee for ~6,000 sf full coordination with two clash cycles.

We prioritize efficient teams who can meet the above at a sharp price (please include your best cost-optimized number and any volume discount for 3+ homes).

Milestones:

30% – Revit A/S/MEP base + initial views/search sets ready

40% – Full clash pass + Issue Register + NWD with saved viewpoints

30% – Re-test + finalized exports + Loom walkthrough

Also include your hourly rate for out-of-scope revisions (design changes, added options).

How to Apply (attach all three)

Relevant Samples: one residential project showing your clash workflow and issue log format (screens/video OK).

Process Brief (8–12 bullets): modeling standards, rulesets, QA checks, any Dynamo/automation you use to keep costs down.

Pricing: fixed fee for ~6,000 sf (as scoped), hourly rate, typical turnaround, and volume discounts.

Screening Questions

Which LOD do you use for reliable residential coordination, and why?

Your default clash thresholds for S/M/E and how you handle soft clashes/clearances?

How do you ensure service access (AHUs, panels, cleanouts) is respected in the model?

Share a specific coordination win (problem → your fix → cost/schedule impact).

Can you provide Revit templates/view templates you’ll use to speed delivery?

Nice to Have (not required)

Autodesk Construction Cloud / BIM 360 admin

Dynamo automation for QA/naming/views

Point-cloud registration for future as-builts

Basic 4D/5D hooks or QTO enhancement

Admin

NDA + IP: all project models/families created for our projects become our property.

Ability to overlap with US Eastern Time for check-ins.

Clear, proactive communication.

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