Prepared for David and Robin Simon

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Opinion of Probable Cost

543 The Panorama.

Dear David and Robin,

Thank you for the opportunity to provide you with our opinion of probable cost for the project at 543 The Panorama, Tallai.

This proposal includes items set out in the documents supplied. The documents are as follows:

  • 260619 - 543 The Panorama, Tallai - Project Scoping Document
  • 260619 - 543 The Panorama, Tallai - Costing Issue
  • Geotech Report
  • 543 The Panorama - Bushfire Report
  • 543 The Panorama - Septic Design [ASI_260259-ABS]
  • 543 The Panorama - Contour & Detail [Survey 25245-D1-A-(A0)]
$9.5M
total opinion of probable cost including gst
18
working months · anticipated construction duration
The submission · Q&A rows

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Private & Confidential

Opinion of Probable Cost.

Site works
Hardstand$5,000
Termite$5,000
Bulk Excavation$80,000
Site Cut to Fill$10,000
Retaining Wall Backfill$15,000
Concrete Structure$1,190,000
Conc Beams, Footings and Thickeningsinc.
Slab on Groundsinc.
Suspended Slabsinc.
Dry cavity and spoon draininc.
Saw Cutting and Coring$15,000
Core filled Masonry$350,000
Carpentry
Framing Materials (Walls & Roof)$150,000
Labour$250,000
Glue / Fasteners$25,000
Skirtings$5,000
Staircase, Handrail and Balustrades$50,000
Internal Timber Door and Jambs$50,000
Entry Door$10,000
Electrical$120,000
Plumbing works$115,000
Civil Drainageinc.
Below Ground Sewerinc.
Plumbing Worksinc.
Electric storage hot water unitsinc.
Fireplace Installinc.
Floor Finishes
Timber Flooring Install$27,000
Rubber Flooring Supply & Install$9,000
Exposed Aggregate Concrete (CON01)$32,000
Light Exposed Aggregate Concrete (CON03)$40,000
Polished Internal Concrete (CON04)$72,000
Concrete Sealinginc.
Floor Levelling$15,000
External Finishes
Tyrolean Roughcast Render Supply & Install$60,000
Aluminium Standing Seam Cladding Supply & Install$77,000
Timber Batten Screens Supply & Install$40,000
Timber Shiplapped Cladding Supply & Install$15,000
Aluminium Awning Supply & Install$50,000
Stone Wall Cladding Install inc sealing$50,000
Crazy Paving Install inc sealing$63,000
Aluminium Reveals and Flashing Inc Angles Cast In etc$20,000
Skylights$4,000
Roofing$150,000
Aluminium Roof Cladding and Ridge Cappings and Flashings, Gutter, Other
Internal Wall
Engineered Oak Tongue and Groove Boards Supply & Install$150,000
Marrakesh Plaster Wall Supply & Install$129,000
Insulation Supply & Install$40,000
Internal + External Timber Wall, Ceiling Lining and Cappings (everything excluding plaster)inc.
Ply Substrate to liningsinc.
Wet Area Floor & Wall Waterproofing$30,000
Ceilings & Soffits
Marrakesh Plaster Ceiling Supply & Install$89,000
Timber Shiplap Ceiling Supply & Install$58,000
Engineered Timber Board [tim01] Supply & Install$30,000
Painting & Staining
Painting
Staining$50,000
Glazing
Mirror, Shower Screens$35,000
External Works
External Waterproofing$100,000
Pedestrian Gates & Fences$20,000
Automatic telescopic sliding driveway gate x 2 (timber batten cladded)$20,000
Garage Doors (2 x double & 1 x single tilt doors)$25,000
Metal Balustrade$40,000
Glass Balustrade$5,000
Retaining Wall (stacked and tiered sandstone)$126,000
Retaining Walls (blockwork)$53,000
Firepit and Seating$20,000
Concrete Stair$20,000
Concrete Seatings (entry & courtyard)$10,000
Site and Builders Clean & Caulking$75,000
Preliminaries
Site Shed/Toilet/Fence/Consumables$49,000
Site Security Including VMS$8,000
Rubbish Skips$50,000
Temp Power and Lighting$10,000
All Insurances$70,000
Traffic Control$10,000
Crane$20,000
Project Management and Administration$350,000
Site Manager$350,000
Scaffolding$50,000
Hire Equipment$10,000
Wall / Floor / Window Protection$15,000
Reinstate Assets / Protection works / Dilapidation report$9,500
Land Surveyor/Set out/3D Scanning$25,000
Provisional Sums
Council fees/ Environmental Costs/Road permits$20,000
Authority Fees / service upgrades / CT metering / Utility Costs$20,000
Q Levy$50,000
Boundary chainlink barbed wire fences (1800H)$50,000
Crossover x 2 (exposed aggregate)$15,000
Secondary driveway – grassed/natural (cost option 2)$6,000
Structural Steel Supply Fabricate and Install$35,000
Solar system inc. batteries (supply)$40,000
Solar system inc. batteries (install)$10,000
Stone floor tiles, crazy pave (supply) [til02]$45,000
Stone Wall Cladding (supply) [stc01]$29,000
Appliances (supply)$150,000
Sanitary Fixtures (supply)$80,000
Fireplace (supply)$25,000
Lighting Fixtures (incl. ceiling fans)$130,000
Linear Threshold Drain Supply$55,000
Wall Mounted Clothesline Supply$2,000
Air conditioning$100,000
Dry Cavity Ventilation$8,000
Under-Tile floor heating to bathrooms$20,000
Sauna$25,000
Microcement to all wall finishes in bathrooms / wet areas$85,000
Timber Flooring (supply) [tim01]$58,000
Bathroom Floor Tile Supply & Install [til01] inc screeding$35,000
Fully tiled spa inc acrylic floor window, mineral sanitization, electric heat pump, robotic spa cleaner, tile coping and all associated equipment and filters$100,000
Number & Letterbox$2,500
Aluminium Doors and Windows$500,000
Hardware Supplyinc.
Cabinetry (incl. counter tops)$500,000
Intercom, alarm, security and network$40,000
Curtains and Blinds$100,000
New Items
Wine Cellar$150,000
Septic System$25,000
3x Rainwater Tanks$60,000
Dedicated power pole inc 3-phase power$20,000
Offsite Overhead$791,100
Subtotal$8,702,100
GST$870,210
Total inc. GST
$9,572,310
Cost Options (for consideration)
Secondary driveway – gravel (cost option 1)$20,000
Construction Duration

We would commit to a 396 working day construction program: 18 working months, start to finish.

Exclusions
  1. Demolition.
  2. Tree removal.
  3. External tree management.
  4. Rock removal.
  5. Working with or the removal of contaminated material or other latent in-ground conditions.
  6. Blinding concrete.
  7. Any works outside of the title boundary, including upgrading sewer, gas, power, water, or associated works (inclusive of trenching etc).
  8. All connection fees (phone, gas, electrical and water).
  9. All consultant fees associated with the project.
  10. Authority fees such as council bonds / asset protection / tree protection etc.
  11. Soft landscaping & irrigation.
  12. Leaf guard.
  13. Roof safety system and ladder.
  14. Lift.
  15. EV charging.
  16. Automation and AV.
  17. Indoor recreational items.
  18. Any upholstery, rug or loose furniture.
Supporting Documents
Private & Confidential

Comparison to Early Concept.

Description Early Concept Schematic Design Rate Early Concept Pricing Schematic Design Pricing
Internal Finished Area (sq m)551.73570.70$10,000$5,517,300$5,707,000
Garage, Workshop and Services (sq m)73.76214.78$6,000$442,560$1,288,680
Driveway (sq m)182.68319.23$1,000$182,680$319,230
Externally Finished Area (sq m)67.5476.34$3,000$202,620$229,020
Externally Enclosed Area (sq m)102.49199.25$6,000$614,940$1,195,500
Planters (sq m)9.7575.33$6,000$58,500$451,980
Spa inc Heater--$55,000
External Works and Hardscape only$500,000$300,000
Totals987.951,455.63$7,518,600$9,546,410

Early Concept vs Schematic Design.

Interactive comparison
Private & Confidential

Case Studies.

Case studies · your 2-3 strongest relevant projects

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W.Mermaid - Local Completed Work of Same Value Case Study

W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence W.MERMAID residence

A stunning north-facing waterfront home on the Gold Coast, completed two months ahead of program with a subcontractor base we assembled from scratch in another state.

W.Hedges - Gold Coast Shaun Lockyer Architect Live Project Case Study

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Another Shaun Lockyer Architects project in the region, under construction on Mermaid Beach today: a striking three-level home with a double-storey basement and a similar off-form concrete finish to 543 The Panorama. We are familiar with SLA's details and finishes, and we are building them right now.

W.Alpine - Off Grid Regional Project Case Study

W.ALPINE residence W.ALPINE residence W.ALPINE residence W.ALPINE residence W.ALPINE residence W.ALPINE residence W.ALPINE residence W.ALPINE residence

Set amongst the wild beauty of the Victorian Alps: a remote, steeply sloping site at the end of a 25 km track, in the highest-rated bushfire zone. The land led every decision: a structure settled gently into the fall of the country among the native trees, detailed and built to the standard the bushfire rating demands. The majority of contractors were local trades we worked with for the first time; where the regional market could not service a need, we brought specialists in from Melbourne.

Private & Confidential

The Project Team.

A dedicated project team, provided from start to finish.

Site Manager On site every day Owns delivery on the ground
  • Shop drawing review
  • Waterproofing details
  • Safety
  • Setouts
  • Quality management
  • Trade bookings
  • Drawing execution
Project Manager Based in Gold Coast, on site weekly Owns the head contract and the time position
  • Contract program
  • Head contract
  • Design resolution
  • Critical details
  • Client communications
  • Meeting agenda
  • Project operating system
  • Client experience
Contract Administrator Based in Gold Coast, on site weekly Owns the numbers and the paperwork
  • Project budget
  • Trade procurement
  • Subcontract management
  • Insurances
  • Variations
  • Document control
  • RFIs
01

Every member of the team carries experience in $10M+ single-dwelling construction.

02

The resources will be allocated to the project and details will be provided for each position once timeline and preferred status are realised.

03

A list of key subcontractors will also be provided alongside cost plan proposal, construction program and 3D construction methodology within three weeks when we progress to the next stage.

Private & Confidential

Detailed Proposal Example Upon Preferred Status

A detailed proposal including 3D construction program and methodology as well as key trade recommendations can be prepared within four weeks when we're engaged as the preferred builder.

3D Program and Methodology.

The build, sequenced in 3D

Fixed Price Trade Recommendation.

How we procure each package
Private & Confidential

One Promise. True Alignment.

Our interests and our client's interests are aligned across every dimension of the project.

Together We Reclaim Time.

Every build is programmed to the day against a live schedule our clients can see. Our fee is fixed. We have no incentive to extend and every reason to deliver early.

Together We Protect Cost.

Every cost is competitively tendered, benchmarked against market, and filtered through a trained financial model fine-tuned on a decade of commercial data. Our fee is fixed against a defined scope. Every dollar saved on trades protects the client's cost and our margin.

Together We Perfect Quality.

Defect-free at handover. No leaks. No unfinished work. Every stage inspected and documented against a quality system defined by national exposure and supported by the most cutting edge construction technology stack available. Our reputation is our pipeline.

Together We Elevate the Experience.

Live site cameras streaming to your device, a private daily feed of progress and milestones, one dedicated app for all communication, documents, data, and your W. team. A build with no blind spots is a build with fewer queries to answer. Transparency serves both sides.

Four Guarantees. One Promise. True Alignment.
Private & Confidential

W. Portfolio.

Beyond the case studies: more of the homes we've delivered, and the live projects under construction today.

W. Portfolio · the standing project library

The portfolio is a reusable set of W. projects, curated per EOI. Photos come from the W. media library / w.build/in-practice (see the wbuild-asset-sourcing skill); drop selects into assets/ named pf-<slug>-1.jpg, pf-<slug>-2.jpg ….

Markup: copy one .proj block from the comment below under each subheading. Keep the two subheads Completed Works. and Under Construction. (accent gold). Progress shots belong only under Under Construction.

Completed Works.

W.SOUTH YARRA

A basement + three-storey restoration and extension of a grand heritage mansion, including an 11-car basement: tunnelling beneath the existing house.

W.SOUTH YARRA residence W.SOUTH YARRA residence W.SOUTH YARRA residence W.SOUTH YARRA residence W.SOUTH YARRA residence W.SOUTH YARRA residence W.SOUTH YARRA residence W.SOUTH YARRA residence W.SOUTH YARRA residence W.SOUTH YARRA residence W.SOUTH YARRA residence

W.HOPETOUN

A four-level, cantilevered off-form concrete residence overlooking the city, delivered early on an $11M fixed price.

W.HOPETOUN residence W.HOPETOUN residence W.HOPETOUN residence W.HOPETOUN residence W.HOPETOUN residence W.HOPETOUN residence W.HOPETOUN residence W.HOPETOUN residence

W.LAMBETH

A meticulous restoration and extension of an early Edwardian home, blending classic and contemporary craftsmanship into a timeless luxury residence.

W.LAMBETH residence W.LAMBETH residence W.LAMBETH residence W.LAMBETH residence W.LAMBETH residence W.LAMBETH residence W.LAMBETH residence W.LAMBETH residence W.LAMBETH residence

W.CANTERBURY

A sophisticated Victorian terrace renovation, built while we delivered the same client's dream home in Queensland. Only possible with W.

W.CANTERBURY residence W.CANTERBURY residence W.CANTERBURY residence W.CANTERBURY residence W.CANTERBURY residence W.CANTERBURY residence W.CANTERBURY residence W.CANTERBURY residence W.CANTERBURY residence W.CANTERBURY residence

W.EUROMA

A masterful restoration and extension of a Victorian-era Hawthorn brick villa, its original character thoughtfully preserved, with modern living layered through every room.

W.EUROMA residence W.EUROMA residence W.EUROMA residence W.EUROMA residence W.EUROMA residence W.EUROMA residence W.EUROMA residence W.EUROMA residence W.EUROMA residence W.EUROMA residence

Under Construction.

W.AQUA

A breath-taking three-level residence with basement, showcasing expansive off-form concrete walls, soaring five-metre sliding windows and three luxurious pools.

W.AQUA residence W.AQUA residence W.AQUA residence W.AQUA residence W.AQUA residence W.AQUA residence W.AQUA residence W.AQUA residence W.AQUA residence W.AQUA residence

W.HAMBLETON

An exquisite restoration and contemporary evolution of a heritage residence: refined Victorian craftsmanship, sophisticated modern additions and a luxurious new basement level.

W.HAMBLETON residence W.HAMBLETON residence W.HAMBLETON residence W.HAMBLETON residence W.HAMBLETON residence W.HAMBLETON residence W.HAMBLETON residence W.HAMBLETON residence W.HAMBLETON residence

W.ESPLANADE

A distinctive new build on Brighton's Esplanade, defined by sweeping sculptural forms and bold, panoramic double-height glazing that commands the beachfront.

W.ESPLANADE residence W.ESPLANADE residence W.ESPLANADE residence W.ESPLANADE residence W.ESPLANADE residence W.ESPLANADE residence W.ESPLANADE residence W.ESPLANADE residence W.ESPLANADE residence

W.MARINE PARADE

Our first Western Australian chapter: a new home for Swanbourne on Perth's coast, with details to come.

W.MARINE PARADE residence W.MARINE PARADE residence W.MARINE PARADE residence
Private & Confidential

Business Details.

Company details

Company nameW-CO BUILT PTY LTD
Business nameW.Build
ACN661 539 591
ABN47 661 539 591
QLD Builders Licence15446229
AddressTenancy 5, Level 3/111 Coventry St,
Southbank VIC 3006
DirectorsScott Wilcox

Insurance.

Certificates of currency

References.

References · cleared with each referee first

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W.Mermaid residence Ed Crowley | ClientGold Coast Project: Mermaid Waters
0401 830 667
Erskine Street residence Monique Mac Neill | ClientMiddle Park Project: Erskine
0439 262 255
Private & Confidential

The Technology Stack.

W.App

One App · Every Detail · In Your Pocket

Everything on a W. project runs through W.App: workflows and approvals, documents, live site cameras, the 3D model, project intelligence and every conversation with your W. team, in your pocket, every day.

W.App: workflows, quick links and home screen W.App: site cameras, 3D model and project intelligence

Starlink-connected site cameras give our clients full 24/7 transparency, with no blind spots, beside a private social feed exclusive to the client and the project management team. Every W. site runs the same stack:

W.AppPrivate W.App with an exclusive feed of progress, granting clients instant updates from anywhere in the world.
W.OSOur custom-built internal Operating System. Meticulously optimised to keep all W.Staff in sync, whether in-office, on-site, or interstate.
Starlink connectivityLive site data from day one, even fully off-grid.
Site cameras · 24/7Full transparency with no blind spots, streaming to your device.
Matterport scansThe whole home captured in interactive 3D at key stages of the build.
Live programProgrammed to the day, visible to the client throughout.
Clash detectionUsing Revit & AI to surface clashes before they become issues on site.
Safety & ComplianceDigital site management: inductions, compliance and records in one place.
Computer Vision Defect DetectionProgrammed photographic capture of every element, reviewed with AI and computer vision; defect inspections documented and closed out stage by stage.

Walk through a W. scan.

Matterport · Interactive

Below is an interactive 3D scan of a W. Project under construction. These scans are completed at key stages of the build and shared with everyone involved for transparency.

Matterport walkthrough · optional

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Private & Confidential
The W. team The W. team The W. team The W. team The W. team

We would love to meet in person to discuss our portfolio, people and processes that we believe are a great fit for this significant project.

Scotty
Builder
Australia's legacy private residential builder
Private & Confidential
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