Trusted by over 1,000 businesses across Australia
Five speculative suites and a shared common area — The Third Space — designed to set a new benchmark in the Parramatta market.
Dear Shaun,
Through our extensive site review, the return brief, and our ongoing working sessions, we have taken a deliberate and methodical approach to understanding both the opportunity and the constraints of this project at 20 Charles Street.
Each stage of engagement has sharpened the brief, aligned priorities, and resolved key considerations. The offering presented here is not a standalone proposal — it is the direct culmination of that collective process. It reflects the insights gathered on site, the feedback exchanged in our meetings, and the strategic objectives we have refined together.
We understand the Parramatta market demands a compelling point of difference. Our approach delivers five speculative suites and a shared common area — The Third Space — each distinct and non-competing, supported by a firm and fixed budget of $1,600/m² + GST that keeps your incentives aligned with market expectations. We are also pleased to offer 3D renders at no cost to support the leasing campaign and maximise market impact ahead of handover.
In that sense, this submission represents the most considered and integrated response possible at this stage — grounded in evidence, shaped by collaboration, and aligned with the direction we have collectively established.
We look forward to delivering an exceptional result together.
The following objectives have guided our design response and delivery strategy throughout.
To provide a competitive offering to the Parramatta office sector — one that stands apart from the existing supply of speculative suites and delivers genuine appeal to prospective tenants.
Provide The Third Space — a shared common area featuring phone booths, a 20-person boardroom and casual breakout — available for each of the five tenancies, creating shared amenity that elevates the tenant experience.
Ensure the suites are delivered with efficiency and impact. Our in-house trades and proven delivery model allow us to move at pace without compromising quality.
Maintain the budget of $1,600/m² + GST to ensure incentives remain in line with market expectation — delivered as a firm, fixed-price commitment with no surprises.
Concept Commercial Interiors is Australia's premier design and build commercial fitout company. With over 48 years of industry experience, a team of 65+ professionals and 240+ in-house tradespeople, we deliver seamless end-to-end projects — from initial brief through design, construction and handover.
Our integrated model eliminates the gaps between design intent and built outcome, giving clients like Rathdrum Properties a single point of accountability, a fixed price, and a guaranteed completion date.
Not only did Concept deliver an exceptional product on time, they actually delivered it early.
— Matt Burrows, ST Real Estate
Four commitments that underpin every project we deliver.
We stand behind our work with a lifetime defect guarantee on every project — giving you enduring confidence in the quality of the finished space.
A single, firm price with no variations or hidden costs. What we quote is what you pay — ensuring your incentive budget remains intact.
98% of our projects are delivered on time or early, thanks to our 240+ in-house trades and vertically integrated delivery model.
A complete space plan and indicative budget delivered within 48 hours of brief — so you can move with certainty from the outset.
Site review, stakeholder alignment, and a detailed brief that captures your priorities and market positioning.
Space planning, design development, material selection and 3D visualisation — ensuring each suite is distinct and market-ready.
Documentation, procurement, and trade coordination — all managed in-house for speed and control.
Construction delivered by our 240+ in-house tradespeople, ensuring quality, accountability, and programme adherence.
Final inspection, defect-free completion, and ongoing support backed by our lifetime guarantee.
A curated team assembled specifically for this project at 20 Charles Street.
Over twenty years of expertise, known for his strategic, client-focused approach across Blue Chip institutions and client-side agencies.
Bringing refined design sensibility and meticulous attention to detail across commercial interiors and spec suite projects.
A dynamic blend of curiosity and creativity — passionate about designing spaces that are compliant, inclusive, and functional.
Ensuring seamless coordination from documentation through to handover with precision and accountability.
Driving on-site execution with efficiency and quality, leveraging Concept's integrated in-house delivery capability.
A Chartered Accountant whose meticulous approach to financial management ensures precision and transparency throughout.
The design delivers five distinct speculative suites and a shared common area — The Third Space — incorporating a 20-person boardroom, phone booths, and casual breakout that complement each suite in both materiality and scale.
Concept's curated design themes offer a starting point for each tenancy — ensuring distinct identities while maintaining a cohesive quality across the floor. Each direction can be tailored to suit tenant preferences.
A rich, layered palette grounded in burgundy, blush, and terracotta. The entry draws tenants in with bold art and tufted velvet seating; materials layer brushed brass, veined marble, and warm timber. Arched forms and soft curves create a sense of welcome and character — well suited to tenants seeking warmth and personality.
A confident, urban-inspired direction anchored in deep navy, warm grey, and burnished gold. Moody kitchen cladding contrasts with natural timber and woven rattan; workstation nooks feature bold blue accents, while the entry pairs tan leather with refined joinery. Finishes include navy wool, brushed brass, marble, and textured corduroy — ideal for tenants wanting a polished, contemporary feel.
A refined, approachable direction centred on natural timber, curved forms, and earthy warmth. Boardrooms are framed in light oak and soft leather; arched hallways and globe pendants add a sense of craft and calm. Kitchen joinery is warm and inviting with arched shelving details. Finishes layer light oak, blush fabric, cream leather, and subtle terrazzo — suited to tenants who value understated quality and natural materiality.
A grounded, biophilic direction inspired by Australian native landscapes. Deep forest greens, olive accents, and charcoal joinery are offset by herringbone timber flooring and natural stone. The palette evokes a connection to nature — green tile splashbacks, dark metal fixtures, and textured carpet bring depth and character. This direction is suited to tenants drawn to bold, nature-led design with a sense of place.
We are pleased to offer 3D renders at no cost to support the leasing campaign — providing compelling visual assets before construction begins. The following renders illustrate the design intent for The Third Space and the tenancy suites at 20 Charles Street.
Indicative budget estimates for the complete fit-out of five speculative suites, The Third Space common area, and all associated lessor works on Level 5.
| Tenancy | Area | Standard Allowance | VR | Cost Saving Option | ||
|---|---|---|---|---|---|---|
| IT Walls | — | — | $325,037 | — | — | — |
| Common Area | 95 m² | $1,863/m² | $177,029 | -$29,119 | $1,557/m² | $147,910 |
| Tenancy 1 | 290 m² | $1,431/m² | $415,073 | -$84,041 | $1,141/m² | $331,032 |
| Tenancy 2 | 78 m² | $1,658/m² | $129,318 | -$25,255 | $1,334/m² | $104,063 |
| Tenancy 3 | 152 m² | $1,672/m² | $254,167 | -$47,872 | $1,357/m² | $206,295 |
| Tenancy 4 | 180 m² | $1,517/m² | $273,030 | -$40,796 | $1,290/m² | $232,233 |
| Tenancy 5 | 146 m² | $1,662/m² | $242,676 | -$44,423 | $1,358/m² | $198,253 |
| TOTAL | 941 m² | $1,585/m² | $1,816,330 | -$271,506 | $1,296/m² | $1,544,824 |
| Partitions / Buildworks | $70,903 |
| Doors & Hardware | $8,960 |
| Ceilings | $2,310 |
| Floor Coverings | $55,972 |
| Curtains & Window Coverings | $3,146 |
| Workstations | $31,749 |
| Loose Furniture | $48,437 |
| Joinery | $41,114 |
| Electrical | $38,144 |
| Hydraulics | $15,610 |
| Fire Protection | $4,550 |
| Mechanical | $51,117 |
| BMS | $10,500 |
| Appliances | $4,258 |
| Preliminaries | $13,752 |
| Building Permit | $14,552 |
| Total (ex GST) | $415,073 |
| Partitions / Buildworks | $15,750 |
| Doors & Hardware | $3,584 |
| Ceilings | $770 |
| Floor Coverings | $14,313 |
| Workstations | $8,798 |
| Loose Furniture | $12,358 |
| Storage Systems | $1,449 |
| Joinery | $23,247 |
| Electrical | $13,160 |
| Hydraulics | $10,500 |
| Fire Protection | $2,730 |
| Mechanical | $4,422 |
| Appliances | $4,258 |
| Preliminaries | $4,838 |
| Building Permit | $9,141 |
| Total (ex GST) | $129,318 |
| Partitions / Buildworks | $42,616 |
| Doors & Hardware | $7,168 |
| Ceilings | $1,540 |
| Floor Coverings | $25,890 |
| Workstations | $17,597 |
| Loose Furniture | $25,107 |
| Storage Systems | $5,579 |
| Joinery | $14,945 |
| Electrical | $23,016 |
| Hydraulics | $10,500 |
| Fire Protection | $3,640 |
| Mechanical | $48,420 |
| BMS | $10,500 |
| Appliances | $4,048 |
| Preliminaries | $8,331 |
| Building Permit | $5,271 |
| Total (ex GST) | $254,167 |
| Partitions / Buildworks | $34,580 |
| Doors & Hardware | $7,168 |
| Ceilings | $1,540 |
| Floor Coverings | $29,936 |
| Workstations | $22,240 |
| Loose Furniture | $25,957 |
| Joinery | $27,727 |
| Electrical | $23,156 |
| Hydraulics | $10,500 |
| Fire Protection | $3,640 |
| Mechanical | $48,726 |
| BMS | $10,500 |
| Appliances | $4,048 |
| Preliminaries | $9,321 |
| Building Permit | $13,992 |
| Total (ex GST) | $273,030 |
| Partitions / Buildworks | $40,684 |
| Doors & Hardware | $7,168 |
| Ceilings | $1,540 |
| Floor Coverings | $24,510 |
| Workstations | $17,597 |
| Loose Furniture | $19,005 |
| Joinery | $20,343 |
| Electrical | $21,546 |
| Hydraulics | $10,500 |
| Fire Protection | $3,640 |
| Mechanical | $48,387 |
| BMS | $10,500 |
| Appliances | $4,048 |
| Preliminaries | $7,972 |
| Building Permit | $5,236 |
| Total (ex GST) | $242,676 |
| Partitions / Buildworks | $20,244 |
| Doors & Hardware | $14,700 |
| Ceilings | $770 |
| Floor Coverings | $12,862 |
| Loose Furniture | $12,132 |
| Storage Systems | $1,736 |
| Joinery | $15,967 |
| Electrical | $8,533 |
| Hydraulics | $10,500 |
| Fire Protection | $3,640 |
| Mechanical | $47,797 |
| BMS | $10,500 |
| Appliances | $1,995 |
| Preliminaries | $6,327 |
| Building Permit | $9,327 |
| Total (ex GST) | $177,029 |
Includes intertenancy walls, tenancy entry doors, electrical services split, fire and mechanical services modifications, BMS integration, engineering consultants, and all associated preliminaries and permits.
| Partitions / Buildworks | $103,530 |
| Doors & Hardware | $14,700 |
| Ceilings | $10,451 |
| Electrical | $70,308 |
| Fire Protection | $7,140 |
| Mechanical | $79,800 |
| BMS | $10,500 |
| Engineering | $34,020 |
| Preliminaries | $23,336 |
| Building Permit | $10,051 |
| Total (ex GST) | $363,836 |
Beyond design and construction, Concept is committed to supporting the leasing campaign for 20 Charles Street with practical tools and marketing assets.
High-quality 3D visualisations provided at no cost — ready for online listings, brochures, and agent presentations to accelerate leasing outcomes.
Each tenancy designed with its own character and material palette — ensuring no two suites compete and every prospect encounters a unique offering.
Floor plans, specification sheets, and visual assets formatted for leasing campaigns — supporting agents with professional, market-ready materials.
Our in-house delivery model ensures rapid programme execution — getting suites to market while conditions are favourable and leasing momentum is strong.
A 20-week programme from design commencement to occupation certificate — March to July 2026.
Comprehensive site survey, compliance review, construction documentation, joinery drawings, and client design page turn.
CDC documentation, lodgement, assessment and receipt.
Contract sum preparation, general conditions, execution and deposit.
Dilapidation survey, safety planning, building inductions and pre-start meeting.
Full build programme from site establishment through to practical completion.
Defect rectification, final inspection, trade certificates, handover package and occupation certificate.
We're ready to move forward on 20 Charles Street. Reach out to discuss next steps.
Concept Commercial Interiors
Level 10, 140 Bourke Street, Melbourne VIC 3000
