Contractors & Parties — Building 5A & 5B

Project Team

All entities engaged on Building 5 — Western Grammar School (client) → AAA Rapid Homes (builder) → subcontractors and suppliers. Last updated 1 Sep 2026.

Client

Western Grammar School Client

Primary contact: Irfan (Irfan Afzal — Principal)
Role: Project client — owner of Western Grammar School. Site decision-maker for Building 5A & 5B. Final invoice recipient.
Project: Building 5A & 5B — Two-storey education building (commercial/institutional)
Address: 15 Cannery Road, Plumpton NSW 2761 (Blacktown City Council)
Engagement: R2G Projects Pty Ltd — open-ended Construction Management (PM, design coordination, estimating, certifier coordination, site/construction phase). Prior: DA pathway management (RGP-363).

Builder / Principal Contractor

AAA Rapid Homes Pty Ltd Builder

ABN: 40 159 519 310
ACN: 159 519 310
Address: 11/10 John Hines Ave, Minchinbury NSW 2770
Email: info@rapidhomes.com.au
Phone: 02 9677 9508
Role: Principal contractor for Building 5. Pays Khashman invoices; counterparty for EOT and Variation Orders. Responsible for site sign-off and pre-pour checks.
Subcontract paid to date: Star Steel INV-02217 ($16,386) — 20 Aug 2026

Principal Certifier

CoCert Certifier

Construction Certificate: CC20260244 (issued)
Role: Principal Certifier under CC20260244. Conducts critical-stage inspections per CC20260244-Critical-Stage-Inspections-OC-Requirements.pdf.
Contact: See Communications / email log for the active thread.

Architect & Project Manager

R2G Projects Pty Ltd Architect / PM

ABN: 48 669 458 477
Address: Sydney, NSW
Lead: Sinan Amin — sinan@r2gprojects.com — 0421 839 490
Role: Architectural design and coordination. Lead on the engagement. Construction Management for Building 5A & 5B.
Service lines (active): Project management · Design coordination · Estimating / BOQ · Certifier coordination · Site / construction phase
Engagement fees (R2G): Invoiced to date: $43,410 · Paid: $0 · Outstanding: $43,410 (12 invoices)

Structural Engineer

JAS Engineers Engineer

Key contact: Jamal Salame — 0425 305 433 — jas_sydney@hotmail.com
Role: Structural engineering for Building 5. Final slab + beams design issued 16 Aug (11-pp set, ref JS202125/ST). Currently finalising: future bathroom section, bracing details, right-hand side building extension (per v5 sketch Sinan sent 28 Aug).
Recent deliverables: JS202125/ST Final 11pp (16 Aug) · Tax Invoice 15CRP15 ($18,672.50, URGENT — pay pending)
Drawing log: See 04_Notes/Building-5-Structural-Log.md

Subcontractors

Khashman Group Pty Ltd Formwork & Concrete

ABN: 19 649 407 296
ACN: 649 407 296
Address: 6 Coomera St, Harrison ACT 2914
Director: Asaad Al Khashman — 0435 910 860 — asaadkhalif96@gmail.com
Contract: RGP-432 — Formwork & Concreting for Building 5 (signed 27 Jul 2026)
Type: Rate-based (final value = measured qty × unit rates). Estimated $136,754 inc GST if all schedule items executed.
Payment milestones: 35% / 20% / 35% / 10% — formwork / steel / concrete+Dincel / demob
Payment terms: 7 days from invoice receipt · Retention 3% · LDs $500/day
Payment details: BSB 012292 · ACC 429271751

Contract status (as of 1 Sep 2026):

Invoice	Date	$ inc GST	Status	Date Paid
KG-2026-001	28 Jul 2026	$16,500.00	Paid	3 Aug 2026
KG-2026-002	14 Aug 2026	$29,700.00	Paid	25 Aug 2026
KG-2026-003	1 Sep 2026	$13,442.00	Paid	9 Sep 2026
KG-2026-004	16 Sep 2026	$49,500.00	Issued — 7-day terms	—

Total invoiced: $109,142.00 · Total paid: $59,642.00 · Outstanding: $49,500.00 (79.81% of contract sum)

Suppliers

Dincel Australia Dincel walls

Role: Dincel wall system supplier — 200mm panel
Deliveries: • 1st delivery 4.5t S53406 — 10 Aug 2026 (invoice 56279, $15,044)
• 2nd delivery balance S53521 — 14 Aug 2026 (invoice 56398, $9,760)
All Dincel material on site
Payment: $18,577 paid 7 Aug 2026
Outstanding: Invoice 56398 ($9,760) — outstanding per 14 Aug note

Steelbuilders Pty Ltd Steel

Location: Glendenning NSW
Contact: Aro (internal estimation J179773)
Scope: Structural steel — 16 columns + 643m beams
Quote: Proximate $39,000 inc GST (17 Aug) — formal quote pending
Lead time: 4 weeks from order confirmation to installation

Cedar Steel Steel

Contact: Tonia Chaiban (Estimator) — ray@cedarsteel.com.au · sales@cedarsteel.com.au · operations@cedarsteel.com.au
Scope: Structural steel — supply & install, 16 columns + 643m beams + bracing (X-brace both sides per v3 plan)
Quote: Quote CQ085802 — $94,500 ex GST / $103,950 inc GST (28 Aug 2026)
Validity: ⚠ 7 days only — expires 4 Sep 2026
Open item: Itemised split (fabrication vs installation) requested 31 Aug 2026 — awaiting response

Star Reo Reinforcement

Contact: Ahmed (Estimating)
Scope: Reinforcement steel — starter bars, ties, beams + columns
Paid: Starter bars + ties — $1,430 paid 24 Jul 2026 (INV-02149) · Delivered 11 Aug 2026
Other: Star Steel INV-02217 ($16,386) — paid via AAA Rapid Homes 20 Aug 2026 (different entity)

Aluming Windows & Doors Windows

Quote ref: AWD0011330
Status: Quote received — under analysis
Detail: See 03_Estimating_and_Procurement/02_Subcontractor-Quotes/AWD0011330-Aluming-Windows-Doors-Quote-Analysis.md
Lead time: 8–12 weeks
Note: Window order not yet placed — 8–12 week lead time flagged as critical path

AGWA / WERS Industry bodies

AGWA: Australian Glass & Window Association — industry body
WERS: Window Energy Rating Scheme — energy performance certification
Use: Compliance reference for window selection and ratings

Steel fabricators approached — awaiting response

EDCON Steel Steel

Email: blacktown@edconsteel.com.au
Status: No response since 10 Aug 2026

PSSF Steel

Website: pssf.com.au
Status: Quote request sent 28 Aug 2026 — awaiting acknowledgement
Documents sent: Engineering Plan Set v6 (16pp) + Structural Steel Sheet v6 (1p)

Damo Steel

Status: Direct contact approach 27 Aug 2026 — awaiting response

Tip: this page is the public contractor summary. For deeper detail on a specific party, see the linked references: RGP-432 contract · email log · subcontractor quotes.