Suntera at Plaza House: Phase 1
First Floor
12,000 sq ft CAT B Office Fit-out
Key Features:
Six-month, end-to-end delivery: design and build to an end-of-year occupation deadline.
Growth-ready planning: circa 140 staff Day 1, with Day 2 capacity up to 170 workstations.
Choice-led workplace: a balanced mix of meeting rooms, quiet rooms, lounges, collaboration settings, and tea points.
BREEAM-led approach: design aligned to Guernsey’s first BREEAM-accredited building.
High-performance integration: upgraded HVAC zoning, lighting controls, power/data, and workplace technology.
Signature collaboration hub: a destination social and town-hall zone shaped by daylight, views, and acoustic comfort.
A six-month, end-to-end delivery
Suntera needed a turnkey partner to design and deliver a 12,000 sq ft CAT B fit-out at Plaza House within a compressed six-month window, to support a critical end-of-year occupation.
This project began differently from most. Suntera engaged us after initial test fits were developed with incumbent support. Our role was to pressure-test the emerging direction, refine it into a better-performing workplace, and then take full ownership of the project through design, procurement, and delivery.
Once appointed, we moved quickly to validate the brief, refine the workplace strategy, and accelerate into delivery, combining rapid concept development with tight programme control through to handover.
Quickplan AI-supported 3D walkthrough
Rapid validation using AI-led test-fits
We began with a structured engagement process to challenge assumptions and confirm what “good” looked like for Suntera’s Guernsey operation.
Using our Quickplan AI-supported test-fits and 3D walkthroughs alongside stakeholder input, we explored multiple planning options to improve space efficiency, refine adjacencies, and introduce clearer focal points across the floor.
This helped the team move from “a workable plan” to a workplace strategy that actively supported growth, collaboration, and focus, without compromising on density, comfort, or circulation.
From concept to build-ready
Once the preferred direction was agreed upon, we translated the design into a fully coordinated, buildable package. This included detailed technical drawings, specifications, and coordinated layouts for partitions, power and data, lighting enhancements, and acoustic measures, aligned with landlord requirements and statutory approvals.
In parallel, we developed clear 3D visuals and walkthroughs so the client could see exactly how the workplace would look and feel before finalising procurement decisions.
That certainty supported faster sign-off, reduced design drift, and allowed procurement and delivery planning to move forward with confidence.
3D render of the design intent
Planning for scale, focus, and everyday comfort
The first floor is the primary working environment, structured to accommodate circa 140 people day-to-day, while remaining ready to flex as the business grows.
Open-plan desking is organised with a calm, symmetrical logic, supported by:
dedicated quiet rooms for confidential conversations and video calls
a varied meeting ecosystem with technology and acoustic performance built in
storage and locker zones that reduce visual clutter and improve daily usability
biophilic breaks and softer lounge moments to create comfort and choice
two tea points are positioned at opposite ends of the floor, reducing travel distance and creating natural social hubs
All workstations were specified as sit-stand height-adjustable, paired with ergonomic task seating to support well-being and sustained performance. Furniture selection was validated against ergonomic performance and responsible manufacturing criteria, ensuring durability and long-term lifecycle value.
A social heart with a view
A key design move was to create a destination collaboration zone on the south-east side, taking advantage of the curved façade, daylight, and views.
This space was intentionally designed to feel distinct from the main work setting, with a more expressive architectural language:
exposed ceiling and coordinated services
feature lighting layered with acoustic elements
agile soft seating and reconfigurable layouts
free-hanging acoustic panels to control reverberation and support town-hall use
It’s a genuine breakout environment: somewhere teams can gravitate to throughout the day, without disrupting focused work nearby.
Detail, technology, and acoustic performance
Across the floor, the specification was shaped around a modern, tech-enabled workplace experience:
double-glazed partitioning to meeting rooms for privacy and acoustic control
branded manifestations integrated into glazing
room booking interfaces and coordinated AV readiness
acoustic ceiling features and wall treatments where required
glass writing boards and collaboration tools to support workshops and project work
Together, these elements create meeting and collaboration spaces that feel calm, private, and intuitive to use. The result is an environment where technology supports the experience without dominating it, and where acoustic control, visual clarity, and everyday usability are built into the details.
Designing around sustainability
Plaza House’s BREEAM accreditation set a clear benchmark for environmental performance, and our approach was to work with the building, not against it.
Wherever possible, we retained and enhanced the CAT A infrastructure, upgrading only where it improved functionality, comfort, and control. This meant optimising what was already in place, while refining key elements such as zoning, controls, and workplace distribution to suit how the team would actually use the space.
Material and furniture choices prioritised durability and responsible sourcing, with a focus on long service life and strong whole-life value. The result is a fit-out that supports Suntera’s day-to-day performance while aligning with the base build’s sustainability intent.
Delivering within a 16-week construction window
The project required careful coordination with landlord requirements and statutory approvals, alongside efficient integration with the CAT A base build. With a fixed occupation date driving the programme, early-stage decisions had to translate quickly into coordinated, buildable information.
Construction commenced in August with a focused 16-week fit-out programme. POS Interiors led delivery as principal designer and main contractor, coordinating the full project team, specialist subcontractors, procurement, and site logistics to maintain momentum and protect quality.
By sequencing works carefully and managing interfaces between trades and existing systems, we kept progress predictable and disruption low, ensuring the space was completed, commissioned, and ready for occupation on schedule..
Outcome
Phase 1 was delivered successfully and on time, enabling occupation ahead of the year-end deadline and supporting the wider consolidation strategy from two offices into one cohesive hub.
The result is a high-spec, future-ready first floor that balances density with comfort, technology with warmth, and focused work with genuine space to collaborate and connect.
Next: Phase 2 works to the ground floor client suite and breakout spaces are underway, completing the building-wide vision in the next stage of the programme.
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