Pre-Con · Green Light™ - Stage 05 · Worked example Northgate Chambers - Floors 4-6 Cat-B Fit-Out · Cushman Workplace · NG-2026-0042 · £1.42m
This is Pre-Mob QA Gate · Pre-Con Green Light™ ·≠ Green Light™ (OIA Phase 1 proposal - different doc, same name)
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BUILTAI
THE PRE-CON PACK™ STAGE 05 · GREEN LIGHT

Green Light™

Pass the gate. Site gets the green light.
The final checkpoint before a delivery team takes ownership. Fifty-two checks across six domains — document completeness, traceability, procurement status, risk closure, financial baseline and handover readiness. The QA gate doesn't create new work. It catches what's missing, confirms what's ready, and makes the handover defensible.
Project
Northgate Chambers — Floors 4–6 Cat-B Fit-Out
Gate opened
Wednesday 17 June 2026 · Wk 8
Gate closed
Thursday 19 June 2026 · 16:00
Owner
D. Marchetti · Built AI Pre-Con Lead
Result
PASSED — 52 of 52 checks · 0 blockers · site possession Mon 22 Jun
built-ai.io · hello@built-ai.io © 2026 Built AI Ltd BUILT AI
PRE-CON WORKFLOW 1Day One → 2Fine Print → 3Market Day → 4The Ledger →
5Green Light
CLIENT DELIVERABLES
PSSpec
DSWScope
DIDesign Intent
SEPEnquiries
UPBBoQ
PDPDelivery Plan
QA GATE RESULT

Pre-Mobilisation QA — Passed

Fifty-two checks across six domains. All passed — zero blockers, zero open items. The pre-con package is ready for handover to the delivery team and site possession on Monday 22 June 2026.

QA CHECKS
52 of 52
All domains passed
DELIVERABLES ISSUED
6 of 6
PS · DSW · DI · SEP · UPB · PDP
ORDERS COMMITTED
11 of 11
All packages placed or instructed
OPEN RISKS
0
11 risks closed or transferred to delivery
QA CHECKLIST

52 Checks Across Six Domains

Each domain groups the checks that matter at handover. The gate runs over two days — Day 1 is the desk review; Day 2 is the sign-off meeting with the Pre-Con Lead, Design Manager, QS and Procurement Lead.

Domain 1 — Document Completeness 10 / 10 passed
✓
Project Specification issuedNG-PS-001 Rev 1 · 148 spec clauses across 11 packages · issued 22 May
PS-001
✓
Detailed Scope of Works issuedNG-DSW-001 Rev 2 · 11 work packages with scope, exclusions, assumptions · issued 6 Jun
DSW-001
✓
Design Intent document issuedNG-DI-001 Rev 1 · 12 design intent items captured · issued 22 May
DI-001
✓
Supplier Enquiry Packs complete11 enquiry packs issued (8 main + 3 late) · all returns received and evaluated
SEP-ALL
✓
Unpriced BoQ issuedNG-UPB-001 Rev 1 · 68 line items · issued 12 Jun
UPB-001
✓
Project Delivery Plan issuedNG-PDP-001 Rev 1 · 8 sections · issued 18 Jun
PDP-001
✓
Drawing register current47 inbound + 12 Built AI-produced · all rev-controlled · latest issue confirmed 17 Jun
DWG-REG
✓
RFI register closed24 spec gaps raised · 24 closed · NG-014 (AV) closed 27 May · none carried forward
RFI-LOG
✓
Assumption register reconciled28 tender assumptions · 24 confirmed, 3 retired, 1 converted to variation entitlement
ASM-LOG
✓
Document control structure live11-folder workspace · naming convention in use · archive protocol active
WKS-001
Domain 2 — Specification Traceability 8 / 8 passed
✓
Every spec clause traces to a BoQ line148 clauses → 68 BoQ lines · mapping verified by QS · no orphan clauses
TRACE-01
✓
Every BoQ line traces to an order68 lines → 11 supplier orders · no unplaced items
TRACE-02
✓
Every order references the DSW package11 sub-contracts reference DSW scope, exclusions and programme constraints
TRACE-03
✓
Design intent items referenced in spec12 DI items cross-referenced to relevant specification clauses
TRACE-04
✓
Sample sign-offs recorded against spec8 samples + 1 mock-up · all signed off · sign-off references linked to spec clauses
TRACE-05
✓
Coordination clashes resolved6 clashes identified · 6 resolved · resolutions documented in spec / DSW updates
CC-ALL
✓
Provisional sum items accountedAV (£40k) — scope confirmed, ordered at £38,400. Reception (£24k) — ordered at £23,200. Both within PS allowance.
PS-ITEMS
✓
Contract sum reconciliation clean£1,418,650 awarded → £1,418,650 committed · net trade saving £30,470 sits in project contingency
CSR-001
Domain 3 — Procurement & Supply Chain 10 / 10 passed
✓
All 11 work packages ordered7 primary orders placed Stage 04 · WP-01 strip-out, WP-06 reception, WP-08 wall finishes, WP-11 AV placed Wk 9
ORD-ALL
✓
Sub-contracts executed11 JCT SBC/Sub 2016 (D&B) executed · all returned signed
SUB-ALL
✓
Performance bonds received4 bonds at 10% (Holroyd, Marlow, Atherton, Ringway) · 3 PCGs · 4 below threshold
BND-ALL
✓
Long-lead items confirmedLL-01 joinery (Wk 16 delivery) · LL-02 AV (Wk 17) · LL-03 switchgear (Wk 16) · LL-04 raised floor (Wk 14) — all on track
LL-ALL
✓
Supplier insurance confirmedAll 11 suppliers — employer's liability, public liability, PI (where required) — certificates on file
INS-ALL
✓
Supplier RAMS responsibility confirmedStrip-out, mechanical, electrical — task-specific RAMS required pre-start. Cross-referenced to RAMS Factory.
RAMS-01
✓
Goods lift booking protocol agreedBuilding Manager confirmed slots · booking procedure documented in PDP
LOG-01
✓
Waste management planStrip-out waste stream licensed · skip permits obtained · Clearsite Demolition documentation complete
WM-01
✓
Mock-up MU-01 signed offFull-scale meeting suite mock-up approved 9 Jun · all 8 review items passed
MU-01
✓
Procurement tracker live and cleanNG-PT-001 · all 11 packages tracked · handover to delivery team QS confirmed
PT-001
Domain 4 — Programme & Risk 10 / 10 passed
✓
Construction programme issuedNG-PRG-003 Rev 1 · 14 weeks · sectional completion L6/L5/L4 · Primavera P6
PRG-003
✓
Sectional dates confirmedL6 7 Aug · L5 4 Sep · L4 + PC 25 Sep · tenant move-in 12 Oct · all protected by procurement timeline
SEC-01
✓
Float assessment4 WD float on L6 · 6 WD float on L5 · 3 WD float on L4 · binding constraint: joinery install L6
FLT-01
✓
Risk register closed or transferred11 risks total · 8 closed (R-01 to R-04, R-06 to R-09) · 3 transferred to delivery (R-05 LDs, R-10 CDM PD, R-11 BCO timing)
RSK-ALL
✓
CDM pre-construction information currentAsbestos survey clean · site constraints documented · fire strategy confirmed with Restall
CDM-01
✓
BCO pre-application completeBCO T. Asare — pre-application meeting 14 May · inspection schedule agreed for L6 first
BCO-01
✓
Noisy works restrictions documented10:00–16:00 restriction confirmed · tenant notification protocol agreed · documented in PDP
NWR-01
✓
Delivery sequencing confirmedL6 strip-out Wk 1 → L5 Wk 2 → L4 Wk 3 · concurrent working from Wk 4 per agreed protocol
SEQ-01
✓
Tenant FF&E delivery dates alignedCushman confirmed Wexley FF&E deliveries aligned to sectional handover dates · joint programme issued
FFE-01
✓
Commissioning plan draftedWitness testing schedule agreed with Lambourne Vance (M&E) and Marlow (electrical) · BMS interface protocol documented
COM-01
Domain 5 — Financial Baseline 8 / 8 passed
✓
Contract sum reconciliation clean£1,418,650 awarded = £1,418,650 committed · no unexplained variance
FIN-01
✓
Trade procurement saving quantifiedNet saving £30,470 (−2.4%) across 11 packages vs target · sits in project contingency
FIN-02
✓
Provisional sums reconciledAV PS £40,000 → ordered £38,400 (saving £1,600). Reception PS £24,000 → ordered £23,200 (saving £800).
FIN-03
✓
Contingency statusClient contingency £28,400 (2.0%) held by employer. Project contingency (from trade savings) £30,470 held by Built AI.
FIN-04
✓
Payment schedule preparedMonthly application dates (22nd) · first application 22 Jul 2026 · cashflow forecast issued in PDP
FIN-05
✓
Variation entitlement register1 tender assumption converted to variation entitlement (ASM-017 — scope boundary at Cat-A services interface). Value TBC at site start.
FIN-06
✓
Retention schedule confirmed5% during works → 2.5% at PC → 0% at DLP end. Per JCT D&B Cl. 4.18.
FIN-07
✓
Margin Cockpit baseline readyFinancial baseline clean enough for Margin Cockpit to inherit. Trade commitment, contingency, PS reconciliation, cashflow forecast — all structured and traceable.
FIN-08
Domain 6 — Handover Readiness 6 / 6 passed
✓
Delivery team briefedHandover meeting 18 Jun — Pre-Con Lead to Site Manager, QS, M&E Coordinator. PDP walkthrough 90 min.
HO-01
✓
Site induction materials preparedSite-specific induction pack produced. Includes constraints, noisy works protocol, goods lift booking, emergency procedures.
HO-02
✓
Stakeholder register transferred18 individuals · communication protocol · delivery team contacts added. Register live.
HO-03
✓
Document control access transferredDelivery team granted full access to NG-2026-0042 workspace. Pre-con archive sealed.
HO-04
✓
RAMS Factory handover pack issuedTask list, method statements required, hazard register from pre-con risk register — issued to RAMS Factory workflow for delivery phase.
HO-05
✓
Commercial Control Kit baseline setContract sum analysis, tender assumptions register, exclusions log — issued to Commercial Control Kit as entitlement baseline.
HO-06
CLIENT DELIVERABLES — COMPLETE SET

Six Deliverables Issued

The full Pre-Con Pack output for Northgate Chambers. Every document traceable, reviewed and issued to Cushman Workplace on behalf of Halberd Properties and Wexley & Crowne LLP.

PS
Project Specification
148 spec clauses across 11 packages. Source-traced to NBS/CIBSE outline specs and tender clarifications.
NG-PS-001 Rev 122 May 2026
DSW
Detailed Scope of Works
11 work packages with scope, exclusions, assumptions, interfaces and programme constraints.
NG-DSW-001 Rev 26 Jun 2026
DI
Design Intent
12 design intent items capturing the "why" behind specifications — for tenant sign-off and supplier briefing.
NG-DI-001 Rev 122 May 2026
SEP
Supplier Enquiry Pack
11 structured enquiry packages with scope, programme, return requirements and commercial terms.
NG-SEP-MASTER Rev 122 May – 8 Jun
UPB
Unpriced Bill of Quantities
68 line items, traceable to spec clauses and orders. Issued unpriced to Cushman; priced version internal.
NG-UPB-001 Rev 112 Jun 2026
PDP
Project Delivery Plan
Programme, milestones, coordination map, logistics plan, commissioning schedule, cashflow forecast.
NG-PDP-001 Rev 118 Jun 2026
FINANCIAL BASELINE

What Margin Cockpit Inherits

The Pre-Con Pack produces the financial baseline that Margin Cockpit tracks from mobilisation through practical completion. These are the numbers the delivery team starts with.

Northgate Chambers — Financial Baseline at Handover

Produced by Pre-Con Pack™ · Inherited by Margin Cockpit™ · 19 Jun 2026
CONTRACT SUM
£1,418,650
excl. VAT · JCT D&B 2016
COMMITTED (TRADE)
£1,226,880
11 orders placed · all sub-contracts executed
TRADE SAVING
£30,470
−2.4% vs target · in project contingency
CONTINGENCY TOTAL
£58,870
£28,400 client + £30,470 project

What's committed

  • Trade packages (11)£1,226,880
  • Prelims & OH&P£128,200
  • Commissioning & T&C£33,100
  • Project contingency£30,470
  • Total committed£1,418,650

What the cockpit tracks

  • Target margin8.2%
  • Current margin (at handover)10.3%
  • Variation entitlement (potential)£TBC
  • LD exposure per section£8,500/WD
  • Client contingency (employer-held)£28,400
PROJECT DELIVERY PLAN

PDP — What the Delivery Team Receives

The Project Delivery Plan is the sixth and final client deliverable. It's the delivery team's operational manual for the 14-week construction programme. Eight sections covering everything from programme to commissioning.

PDP §01
Programme & Milestones
14-week construction programme (Primavera P6). Sectional completion dates, float analysis, critical path. Links to procurement timeline for manufacturing lead-times.
PDP §02
Site Logistics Plan
Goods lift booking protocol, material storage (no dedicated compound — floor-by-floor staging), skip locations, operative access, building security interface.
PDP §03
Work Package Coordination Matrix
11 packages mapped against each other. Interface boundaries, predecessor/successor chains, floor-by-floor sequencing rules. Cross-referenced to DSW.
PDP §04
Design Coordination Tracker — Status at Handover
6 clashes identified during pre-con — all resolved. Tracker transferred to delivery team for any site-emerging coordination items.
PDP §05
Commissioning & Witness Testing Schedule
M&E commissioning plan (mechanical Wk 18, electrical Wk 18–19), BMS integration testing, fire alarm reverification, BCO inspection slots.
PDP §06
Cashflow Forecast
Monthly application forecast (22nd), cashflow curve, retention schedule, final account projection. Linked to Margin Cockpit financial baseline.
PDP §07
Risk Register — Transferred Items
3 risks transferred from pre-con to delivery (LD exposure, CDM PD dual role, BCO timing). Ownership, mitigation and review cadence documented.
PDP §08
Cross-Workflow Handover Map
What feeds RAMS Factory (task list, method info), Commercial Control Kit (entitlement baseline), and Margin Cockpit (financial baseline). Traceability chain documented.
PRE-CON → DELIVERY

Handover Signed

PRE-CONSTRUCTION HANDOVER · NG-2026-0042

Northgate Chambers is mobilisation-ready.

Eight weeks of structured pre-construction — from award intake to QA gate — producing six client deliverables, eleven supplier orders, a clean financial baseline and a delivery plan. The project hands over to the site team on Monday 22 June 2026.
PRE-CON LEAD
D. Marchetti
Built AI Ltd
19 Jun 2026, 16:00
DESIGN MANAGER
A. Pereira
Built AI Ltd
19 Jun 2026, 16:00
QUANTITY SURVEYOR
R. Ashby
Built AI Ltd
19 Jun 2026, 16:00
PROCUREMENT LEAD
S. Okafor
Built AI Ltd
19 Jun 2026, 16:00
The Pre-Con Pack for Northgate Chambers is complete. Site possession begins Monday 22 June 2026. The delivery team has the programme, the packages, the orders, the financial baseline and the delivery plan. Every specification clause traces to a BoQ line. Every BoQ line traces to an order. Every order has a sub-contract, a programme commitment and a delivery date that protects the sectional handover. The pre-mobilisation margin uplift of £30,470 and the clean financial baseline are the first numbers the Margin Cockpit inherits. The task list and method information feed RAMS Factory. The tender assumptions register and exclusions log feed Commercial Control Kit as the entitlement baseline. Nothing leaves this pack without a trail.
BuiltAI
THE PRE-CON PACK™ — COMPLETE

Award to mobilisation. Done.

Eight weeks. Five workflow stages. Six client deliverables. Eleven supplier orders. Fifty-two QA checks. One clean handover. The Pre-Con Pack™ turns the gap between award and mobilisation into structured, traceable, defensible pre-construction — so the delivery team starts from a position of control, not catch-up.

QA CHECKS PASSED
52
DELIVERABLES ISSUED
6
ORDERS PLACED
11
PRE-CON WINDOW
8 wks
built-ai.io · The Pre-Con Pack™ · Stage 05 of 5 · Complete © 2026 Built AI Ltd · NG-2026-0042 · Rev 1
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