

Thank you for the opportunity to present our proposal for Sucy-en-Brie.
This is an ambitious project. The November 2026 handover date, the mezzanine structure, technical demonstration areas, landlord approvals and operational dependencies all demand careful control from the outset.
The best projects are not defined by the absence of challenge. They are defined by the quality of the decisions made early, the clarity of the programme, and the discipline with which risk is managed.
That is the basis of our submission.
We have focused on the areas that matter most: protecting the programme, coordinating the technical detail, maintaining cost transparency and creating a clear route to a fully operational handover.
Our view is simple: Epson's objectives are achievable, but only with early alignment, decisive governance and close control of the critical path.
The following pages set out how we propose to deliver that certainty.


Project formally authorised, design mobilisation commences and critical long-lead packages are released.
Statutory approvals secured, commercial agreements executed and delivery transitions into mobilisation.
Site mobilisation complete and construction activities commence across the Sucy-en-Brie facility.
Construction, commissioning and client acceptance complete, with the facility ready for Epson occupation.
Contract sum, fully detailed across 17 packages.
Project Sum across 2,315 m² of fit-out.
Three mezzanine suppliers have already been tendered. A preferred contractor has been identified and structural design activities have been commissioned at our own risk to protect the September installation window.
Voltarra is already onboarded within Epson's procurement and compliance systems through ongoing projects in Paris, allowing immediate mobilisation without additional supplier approval processes.
Bush & Associates bring deep local knowledge of Sucy-en-Brie and the wider Val-de-Marne region, helping navigate planning, approvals and statutory processes with greater certainty and speed.
Lena Sabela remains involved as Strategic Design Advisor, providing continuity between the original design vision and technical delivery whilst ensuring Epson's operational and workplace objectives remain protected.
Every major contractor has visited site, reviewed the scope and submitted live project-specific quotations. Costs, programmes and technical solutions are based on real market engagement, not desktop assumptions.
Cost-saving opportunities have already been explored across procurement, programme and infrastructure reuse, allowing Epson to benefit from value engineering before contract rather than after.
Voltarra Group have complete in-house expertise to deliver the project, supplemented by the OP Group knowledge of Epson and Lena's involvement from an early design stage.

Single point of accountability for Epson. Leads the client relationship, contract negotiation and escalation, with overall responsibility for programme, commercial and quality outcomes across the Sucy-en-Brie programme.

Owns project delivery end-to-end — design coordination, constructability, MEP integration and statutory compliance. Brings the experience of multiple French technical fit-outs of comparable complexity.

Day-to-day client interface in France. Supports Max on stakeholder management, local liaison and ensures Epson's operational and cultural expectations are reflected at every level of delivery.

Supports Guillaume on site — day-to-day construction management, subcontractor coordination, quality control and progress reporting against the construction programme.

On the programme for oversight and the ongoing Epson partnership. Assures governance, reporting and quality across the Voltarra delivery team, and provides a second line of assurance on commercial, programme and design decisions.

Independent design oversight across the programme. Reviews design intent, materials and detailing for consistency with Epson's brand and operational standards, and ensures the Stage 4 pack lands as a coherent whole on site.
We're working with Bush because of their local knowledge of permitting, relationship with the deputy mayor, and in-house MEP and structural expertise which will help expedite the process.

Founder and Chairman of Bush & Associates. Provides senior sponsorship across the programme and stands behind the design and engineering output delivered by the Bush team.

Leads the design workstream across architecture, MEP, structural and compliance disciplines. Primary interface into Bush & Associates and owner of design intent from Stage 4 through construction.

Leads structural design including mezzanine connections, slab capacity verification and roof loading for plant and AHU anchoring. Co-ordinates with the Bureau de Contrôle on French structural compliance.

Owns interior architecture across the programme — spatial planning, materials, joinery and detailing. Translates Epson's brand and ways-of-working into the lab, office and break environments.

Director of Design at Bush & Associates. Sets and signs off design intent across architecture and interiors, and is the senior design point of contact into Voltarra and Epson.

Drag bars to reschedule, drag the + badge on a bar's right edge onto another bar to link them, or click any dependency arrow to remove it. The critical path recalculates automatically.
Several programme-critical activities must commence before execution of the full construction contract. The sequence below establishes the minimum actions required to maintain programme certainty.
The mezzanine structure remains the primary programme driver. Failure to authorise the mezzanine package by 18 June 2026 will directly impact fabrication release, installation sequencing and the planned December 2026 handover.
Each risk has a defined owner, active mitigation strategy and closure plan established within the first four weeks following appointment.


To the Epson Project Team,
I have spent the last fifteen years delivering industrial, workplace and technical fit-outs across France — including programmes of comparable complexity to Sucy-en-Brie. From mobilisation through to handover I will own technical delivery end-to-end: design coordination, constructability, MEP integration and statutory compliance.
My focus will be uncompromising on three things: protecting the January 2027 launch date, holding the supply chain to the standards Epson expects, and giving your team complete visibility of progress, cost and risk every week. There will be no surprises.
I have already walked the building, met our preferred mezzanine partner on site, and started conversations with local authorities alongside Bush. The team is ready.
Sincerely,
Guillaume Galland

Safe segregation between construction, logistics, visitors and Epson personnel throughout the delivery programme.
Structural validation, lifting plans, work-at-height controls and Bureau de Contrôle review of the proposed structure.
Specialist power, compressed air, extraction and large-format equipment installed within a live technical environment.
Coordination with SPS, Bureau de Contrôle, landlord and local authorities — permits, insurances and fire prevention.
Bureau de Contrôle and Health & Safety Coordinator are appointed directly by the Client and form the statutory foundation. The remaining five streams are scoped, managed and delivered by Voltarra under the single integrated mandate.
Mandated by SEGRO for shell delivery, retained for fit-out. SOCOTEC quote V1 [A] 2606280S0000026 received 04/06 — €11 000 HT (CT €6 360 + SPS €4 640). Perimeter: 3 mezzanines load + anchoring · ERP-W fire and life safety, FR Flex 1+2 fire-rated compartments · Electrical (new TGBT + R+1 sub-distribution, secured IT room) · Fluids (Daikin VRV + hot water, 6 bar compressed air) · Disabled-access door conversions R+1. Visa Control Officer = legal gate Mon 30/06/2026.
French Labour Code L4532-2 — multi-trade > 20 days + > 500 manday triggers mandatory H&S Coordinator. Criminal liability on the Client (Epson), co-liability on Voltarra. Single-interface mandate via SOCOTEC covers safety plan, daily register, CISSCT meetings, end-of-works dossier.

6 bar network supplying 8 industrial machines. Volume stocked likely under ICPE declaration regime; full ICPE survey commissioned by Fluids BE in EXE phase. Outdoor compressor shelter built W28-29 — concrete slab + roof + masonry enclosure per Archisium plan ind 0-1.
SEGRO issued a "provisional asbestos record, being updated". Final record mandatory before any removal/drilling/cabling/partitions. Epson tenant scope — Voltarra interface. Two parallel paths: favourable (SEGRO definitive, no presence) + defensive (complementary survey + SS3 confinement stand-by). Closure required Mon 16/06/2026 to hold W28 strip-out.
Three mezzanines inside existing warehouse. Standard route — minor-works Declaration (déclaration préalable), no Building Permit needed (no exterior modification, no floor-area gain). Pre-application meeting Sucy Planning Department W26 led by Voltarra French planning expertise. DREAL notification only if compressed-air classification evolves.
Cat B+ R+1 fit-out with 3 mezzanine creations does not trigger significant-extension threshold (< 150 m² and < 30%). Gas aerotherm retained warehouse GF (industrial heritage). Reversible heat pump introduced R+1 tertiary. Hot water tank sized 200 L (vs base 50 L) to match 3 kitchenettes incl. R+1 boiling water tap + 2 dishwashers.
SEGRO Parc des Petits Carreaux charter applicable working windows, truck delivery restrictions and quiet-hour clauses. SEGRO Technical Property Manager named landlord interface Day 0. Weekly landlord walk Fridays W27-50. Karcher neighbour construction site (architects Schinko Associés) coordinated for vibration, noise, shared access — pre-meeting W26.
40 line items anchored to calendar dates from Tue 09/06/26 through W06 2027. Christmas freeze (21/12/26 – 03/01/27) shaded. Milestones marked ◆. Drag or scroll the chart to pan across the timeline.


Before reviewing the figures that follow, I would encourage one simple question:
"Which commercial approach gives Epson the greatest confidence in the outcome?"
In our experience, the most successful projects are not those that begin with the lowest number. They are the projects where the right decisions are made early, risks are understood openly and investment is directed to the areas that matter most.
That principle has shaped this submission from the outset.
Every cost has been challenged. Every major package has been reviewed. Every opportunity to reduce risk, improve value or protect programme has been explored before being presented to you.
The result is a commercial submission designed to provide transparency, clarity and informed choice — not simply a tender sum.
Our objective throughout has been straightforward: to approach Epson's investment with the same care, scrutiny and responsibility that we would apply to our own.
I hope the detail that follows reflects that commitment.
Max Parsons
Epson — Paris Project, Sucy-en-Brie. Voltarra Main Contractor · single accountability · French décennale chain. All values € HT.
Line-by-line breakdown per package · all values € HT · firm priced from sub-contractor quotations.
Line-by-line breakdown per package · all values € HT · firm priced from sub-contractor quotations.
Line-by-line breakdown per package · all values € HT · firm priced from sub-contractor quotations.
Line-by-line breakdown per package · all values € HT · firm priced from sub-contractor quotations.
Line-by-line breakdown per package · all values € HT · firm priced from sub-contractor quotations.
Priced options available to Epson, held separately from the Contract Sum. Each line is firm priced from sub-contractor quotations · all values € HT.
Options are priced individually and may be selected independently. Selection confirmed at contract negotiation; long-lead items released against the agreed package list.
Early orders are released against the Letter of Intent — most importantly the mezzanine package (Mecalux, 12-week lead) — together with instructions for design to the consultant team so procurement and coordination begin ahead of contract. A stage payment falls due on contract signing, followed by monthly interim payments valued against works delivered on site, and a final payment at Practical Completion.
Every line of the contract sum, allocated across the seven milestone claims. Values are € HT.

One of the earliest conclusions reached during our review of the project was that Sucy-en-Brie would benefit from a delivery team that combined European project leadership with specialist local French technical expertise.
Whilst Voltarra regularly delivers complex workplace, industrial and technical environments, the combination of French statutory approvals, structural mezzanine integration, detailed MEP coordination and an accelerated programme creates a level of complexity that warrants dedicated local technical support from the outset.
For that reason, we have partnered with Bush & Associates, a French architectural and engineering practice with extensive experience delivering technically complex projects within the French regulatory environment. Importantly, this is not a new relationship. Members of the Voltarra team have successfully collaborated with both Derek Bush and Neege Allen on previous projects and have first-hand experience of their technical capability, responsiveness and construction-focused approach.
Rather than operating as an external consultant, Bush will form an integrated part of the wider Voltarra delivery team. They will report directly through Max Parsons and work alongside our project, commercial and delivery teams, with direct technical access to Office Principles and Lena Sabela to ensure continuity of the design vision, brand standards and interior design intent established for Epson.
The result is a single, coordinated delivery team that combines local French expertise with wider European project leadership — reducing risk, improving technical coordination and providing greater confidence through design development, permitting and construction.


Bush & Associates was founded in Paris by Derek Bush, who moved from London in 1973 to work alongside Terence Conran. He has run his own design practice since 1989, leading one of France's largest interior contractors during his first decade in the country and qualifying as Interior Architect with the CFAI (Ordre des Architectes d'Intérieur).
In 2025, Derek was joined by new partners Timothy Shepherd and Neege Allen, adding operational depth and links to associated practices in London and Milano. Together they form a diverse, multicultural group built around precision, clarity and brand-driven design — delivering workplace, flagship retail, hospitality and high-end residential at scale.
Recent and current work includes TBWA Paris — a workplace transformed into a future-facing creative hub due for completion early next year — and a prestigious HQ programme for OMG, transforming staff experience across the agency's own walls the way Bush does for its clients.
"Our unmatched track record in project delivery, combined with Timothy and Neege's international expertise and the creative talent of our teams, sets the stage for the next chapter in our growth."

Bush & Associates dedicates a senior, multi-disciplinary team to the programme — chairman, client lead, project lead, design, engineering and interior architecture — supported by MEP, structural and specialist consultants, all working inside the Voltarra delivery framework.

Strategic oversight and design leadership — four decades delivering for Apple, Amazon, JP Morgan, Sephora, McDonald's and more across the UK and France.

Senior client relationship and programme governance — international experience across London, Paris and Milan.

Single point of contact to Voltarra — pilot, planning, RFIs, deliverables and day-to-day client interface.

Design direction, French planning and permits, and Stage 4 coordination — active Val-de-Marne authority relationships.

Mezzanine structure, slab capacity, roof AHU anchoring and engineering coordination across MEP and structural consultants.

Interior architecture, dimensional coordination and Stage 4 drawing production extending the Saint-Ouen design language.
MEP Consultant · Structural Engineer · Fire & security compliance · Specialist sub-consultants as required.
Houssem is single point of contact to Voltarra's PM team, with Derek and Neege in oversight.
Paris HQ — 17 Rue Georges Bizet — with associated practices in London and Milan.
Bush & Associates is appointed as Interior Architect across RIBA Stages 4, 5 & 6 — taking ARCH.DESIGN's Stage 3 (APD) work through Technical Design, Manufacturing & Construction and Handover, under a single point of leadership reporting to Max Parsons.
Technical Design · PRO / DCE
Manufacturing & Construction · AMT + DET
Handover · AOR + DOE
Not in scopeMezzanine structural design · 3D visuals / renders · Move management · Building survey · SPS / H&S coordination
The first four weeks following appointment are focused on one objective: creating a fully coordinated technical package that can move rapidly into procurement, permitting and construction.
By the end of Week 4, Epson will have a coordinated and construction-ready design package, a defined procurement strategy and a clear pathway into delivery.
One of the key advantages of incorporating Bush & Associates into the delivery team is their experience navigating the French approvals process and coordinating directly with local authorities and technical stakeholders.
Based on the current scope, the principal approval pathway relates to the mezzanine installation and associated modifications to the existing building.
The proposed strategy is to commence permitting activities immediately following appointment, running in parallel with technical design development to protect programme certainty.
Key activities include:
Indicative approvals duration
~2–4 weeks saved through local authority relationships & parallel working
By engaging local technical specialists at the outset, permitting progresses alongside design development rather than becoming a programme-critical activity later in the project lifecycle.

Voltarra Group delivers complex workplace, industrial and technical environments across Europe through a single integrated delivery model.
Unlike traditional design practices or project managers, we combine strategy, design, engineering, commercial management and construction delivery under one team. This enables faster decision-making, greater accountability and clearer alignment between cost, programme and technical outcomes.
For Sucy-en-Brie, we have assembled a project-specific team combining Voltarra's leadership and delivery expertise with specialist local French architectural, engineering and permitting capability. The result is a single team focused on one objective: delivering a fully coordinated, construction-ready solution that can be procured, approved and delivered with confidence.
At the heart of our approach is Backbone™ — our methodology built around early contractor engagement, proactive risk management, programme certainty and complete commercial transparency.

Cost and programme certainty established before construction begins. Early contractor engagement, validated design and transparent procurement reduce risk before it reaches site.
One team. One contract. One point of accountability. Voltarra manages the consultants, specialists, contractors and supply chain so Epson doesn't have to.
Sucy-en-Brie combines workplace, warehouse, laboratory, demonstration and mezzanine environments under one roof. Our integrated architectural, engineering and construction teams are structured around this complexity.
Six studios across EMEA, supported by local French architectural, permitting and engineering specialists. European delivery capability combined with on-the-ground knowledge where it matters most.
We work across sectors where technical coordination, programme control and delivery certainty are critical.
Cat-A and Cat-B fitout for HQ and regional offices. Design-led, programme-controlled.
Hyperscale and colocation white-space fitout, MEP infrastructure and live-campus phased works.
Cleanrooms, analytical labs and process-led environments with full validation support.
Process plant, mechanical upgrades and structural works delivered around production windows.
Backup power, resilience and clinical environments where compliance and continuity are critical.
CER and server-room upgrades within live operational environments. Resilience-first design.
Following the Backbone™ process enables clients to appoint Voltarra under a single Design & Build contract — mitigating risk and controlling cost from day one.
Single-point accountability for design, procurement, construction and commissioning.
Specialist subcontract coordination under a unified programme. Best for fast-track works.
Mechanical, electrical and public health design coordinated with subcontractor input.
Data hall fitout, containment and structured cabling within live or shell-and-core space.
Power, cooling and resilience upgrades delivered around live operational requirements.
Independent advisory: feasibility, due diligence, cost planning and programme validation.
Condition surveys, capacity reviews and resilience audits for existing facilities.
Structured Cx — IST strategy, Level 1–5 commissioning and integrated systems testing.
OP is on the programme to provide independent oversight and to maintain the ongoing Epson partnership. They assure governance, reporting and quality across the Voltarra delivery team, and provide a second line of assurance on commercial, programme and design decisions.




Epson UK HQ, Watford — delivered by Office Principles
Independent oversight of programme governance, reporting structures and delivery assurance across the Voltarra team.
Maintains the ongoing Epson relationship — continuity from Saint-Ouen and a trusted second line of assurance on all key decisions.
Reviews commercial, programme and design outputs to ensure they meet Epson's standards before final sign-off.
Voltarra is run from our Zürich group HQ, with five regional delivery hubs across Europe. Local presence, regulatory knowledge and permitting relationships in every market — coordinated through a single programme, cost and risk framework.






“The team were relentlessly proactive. Every major decision arrived with a clear recommendation, a clear understanding of the implications and a clear path forward.”
Tier 1 Global Recruitment Firm (Confidential)
Professional Services / Corporate
Design & Build
40,000 sq ft Cat-A and Cat-B fitout across multiple floors, including M&E, workplace fitout, meeting suites, AV and security.
Phased around live operations with building-management coordination. Delivered on time, on budget and without business disruption.
Global Professional Services Firm (Confidential)
Corporate / Commercial
Design & Build
Two-floor Cat-A and Cat-B fitout with specialist AV, collaboration suites and landlord MEP coordination.
Phased occupation with no operational impact. Snag-free handover delivered on schedule.
Life Sciences Scale-up (Confidential)
Laboratories / Life Sciences
Design & Build
Strip-out and refit of cleanroom and analytical lab, including electrical upgrades, containment and MEP isolation.
Completed in a live building with out-of-hours noisy works. Zero-snag practical completion with full O&M handover.
Confidential Healthcare Provider
Healthcare / Critical Infrastructure
Design & Build
Backup power upgrade with new generator, fuel systems and master control panel integrated into live hospital systems.
Sequenced to maintain continuous power and zero disruption to critical services. Completed with full testing and commissioning.
Fortinet
Cyber Security / Enterprise Data Centre
Design & Build
Enterprise data centre: M&E stripout, CRAC installation, containment, lighting, electrical distribution, racks and cages.
Delivered in 8 weeks with phased commissioning of cooling, power and rack infrastructure for rapid IT fitout.
Confidential Logistics Operator
Logistics / Distribution
Design & Build
Fit-out of large-format logistics centre: racking, dock-leveller integration, MEP distribution, high-bay lighting and yard line-marking.
Phased handover across loading bays and pick aisles to allow operational ramp-up while construction continued in adjacent zones.
Voltarra Group operates an integrated management system independently certified to three international standards. These are not framed certificates — they are the operating discipline behind every project we deliver.
End-to-end quality assurance across design, procurement, construction and commissioning. Documented procedures, traceable approvals and continuous improvement embedded in every project.
A measurable approach to environmental impact — waste segregation, embodied carbon tracking, energy efficiency in operation and responsible sourcing.
A proactive, worker-led safety management system. Hazard identification, risk control, incident learning and the cultural backbone of our zero-harm commitment.
