Multi-functional Garden Room


Project Overview
This bespoke multi-functional garden room was designed and built by Pecasa Ltd to create a stylish, year-round space combining a home office, family room, and integrated WC.
The client wanted a structure that would feel like a true extension of their home, offering a quiet workspace during the day and a comfortable family space in the evenings.
To achieve a premium architectural look with minimal maintenance, the exterior was finished with Millboard Oak Board & Batten cladding, giving the building a natural timber appearance while benefiting from modern composite durability.
Exterior Design
The exterior design focuses on modern simplicity and natural textures, allowing the building to sit beautifully within the garden landscape.
Key Features
- Millboard Oak Board & Batten cladding
- Contemporary flat roof design
- Integrated LED soffit lighting
- Premium anthracite aluminium doors
- Modern wall lighting fixtures
- Raised step detail around the base
Millboard’s realistic oak finish provides the warmth of timber while being resistant to rot, fading, and weathering, making it ideal for long-term outdoor performance.
Interior Layout
The garden room was carefully designed to include three practical zones, creating a fully functional outdoor living space.
Home Office
A quiet workspace designed for productivity with:
- Natural daylight through large glazing
- Fully insulated structure for year-round comfort
- Power and data points
- Space for desk and storage
Perfect for remote working or running a home business.
Family Room
The central area works as a relaxation and entertainment space for the whole family.
Suitable for:
- Family movie nights
- Reading and relaxing
- Kids play area
- Guest seating space
The large aluminium doors allow the space to connect seamlessly with the garden.
Integrated Toilet (WC)
To make the garden room fully independent, the structure includes a built-in WC and wash basin.
Features include:
- Compact toilet and hand basin
- Proper plumbing connection
- Ventilation system
- Easy-clean surfaces
This allows the garden room to function like a self-contained annex space.
Construction & Performance
As with all Pecasa garden rooms, the building was constructed for durability and year-round comfort in the UK climate.
Key Construction Features
- Fully insulated wall and roof system
- High-performance glazing
- Durable roofing membrane
- Professional electrical installation
- Long-lasting composite exterior cladding
The insulated structure ensures the garden room remains comfortable in both winter and summer.
The Result
The finished project provides a beautiful and highly functional outdoor space that enhances both lifestyle and property value.
The combination of Millboard Oak Board & Batten cladding, large glazing, and integrated lighting creates a garden building that feels both modern and timeless.
This bespoke Pecasa garden room now serves as:
- A productive home office
- A comfortable family lounge
- A practical garden space with its own WC

