The Rowan spacious one-bedroom SIP granny annexe by TRJ Construction

The Rowan

SPACIOUS 1-BEDROOM SIP ANNEXE

1 BEDROOM | SPACIOUS LIVING

A larger one-bedroom granny annexe designed for generous open-plan living, everyday comfort and calm independent living.

The Rowan granny annexe large bedroom

1 Large Bedroom

PRIVATE, CALM AND COMFORTABLE

The Rowan gives you a generous double bedroom with improved proportions, making it ideal for relaxed day-to-day living.

The Rowan open-plan living space

Spacious Living

OPEN-PLAN KITCHEN, DINING AND LOUNGE

A bright open-plan layout creates more room to relax, cook, dine and enjoy everyday life in a proper self-contained home.

The Rowan generous one-bedroom annexe design

More Room to Breathe

A GENEROUS 1-BEDROOM ANNEXE DESIGN

The Rowan is ideal for those who want the simplicity of a one-bedroom annexe, with more space, better flow and a more comfortable feel.

The Rowan enhanced glazing and garden connection

Enhanced Glazing

BRIGHT, WARM AND CONNECTED TO THE GARDEN

Large areas of glazing help bring natural light into the living space, creating a bright annexe that feels open, modern and inviting.

The Rowan SIP panel granny annexe construction

Built Using SIP Panels

HIGH-PERFORMANCE GRANNY ANNEXE CONSTRUCTION

Built using high-performance SIP panels, The Rowan is designed to feel warm, solid and comfortable for year-round independent living.

The Rowan

SPACIOUS 1-BEDROOM SIP ANNEXE

1 BEDROOM | SPACIOUS LIVING

A larger one-bedroom granny annexe designed for generous open-plan living, everyday comfort and calm independent living.

1 Large Bedroom

PRIVATE, CALM AND COMFORTABLE

The Rowan gives you a generous double bedroom with improved proportions, making it ideal for relaxed day-to-day living.

Spacious Living

OPEN-PLAN KITCHEN, DINING AND LOUNGE

A bright open-plan layout creates more room to relax, cook, dine and enjoy everyday life in a proper self-contained home.

More Room to Breathe

A GENEROUS 1-BEDROOM ANNEXE DESIGN

The Rowan is ideal for those who want the simplicity of a one-bedroom annexe, with more space, better flow and a more comfortable feel.

Enhanced Glazing

BRIGHT, WARM AND CONNECTED TO THE GARDEN

Large areas of glazing help bring natural light into the living space, creating a bright annexe that feels open, modern and inviting.

Built Using SIP Panels

HIGH-PERFORMANCE ANNEXE CONSTRUCTION

Built using high-performance SIP panels, The Rowan is designed to feel warm, solid and comfortable for year-round independent living.

The Rowan by TRJ

Frequently Asked Questions

Clear answers about The Rowan, our spacious 1-bedroom SIP granny annexe designed for generous living, comfort and independence.

The Rowan

The Rowan is a spacious 1-bedroom SIP granny annexe designed for people who want the simplicity of a one-bedroom layout with more room to breathe. It offers a generous bedroom, open-plan kitchen, dining and living space, enhanced glazing and practical storage for comfortable independent living.

The Rowan spacious one-bedroom SIP granny annexe by TRJ Construction
Ideal For

The Rowan is ideal for elderly parents, couples, long-term family accommodation, guest use or anyone who wants a self-contained garden home with a more generous living area than a compact one-bedroom annexe. It is designed to feel calm, practical and easy to live in every day.

The Rowan granny annexe designed for independent family living
Layout

The Rowan can include 1 large double bedroom, an open-plan kitchen, dining and living area, a bathroom or shower room, entrance space and useful built-in storage. The layout can be adjusted around your garden, access, lifestyle and preferred specification.

The Rowan one-bedroom granny annexe open-plan layout
Comfort

Yes. The Rowan is designed as a proper year-round annexe, not a basic seasonal garden room. With high-performance SIP panels, quality glazing, heating, electrics, plumbing and ventilation, it can provide a warm and comfortable self-contained living space throughout the year.

The Rowan year-round SIP granny annexe with warm interior living space
Planning

In many cases, a granny annexe like The Rowan will need planning consideration because it may include sleeping accommodation, bathroom facilities, kitchen space and independent living use. TRJ can review your site, explain the likely route and support the planning process where required.

The Rowan granny annexe planning and garden suitability
Turnkey

Yes. TRJ can deliver The Rowan as a complete turnkey granny annexe, from design and planning support through to foundations, SIP structure, exterior finishes, windows, doors, electrics, plumbing, kitchen, bathroom, flooring, decoration and final handover.

The Rowan complete turnkey one-bedroom granny annexe by TRJ Construction