Led by Design, Built with Care
ANX MODEL 1
UK’s MOST INNOVATIVE ANNEXE, WITH ULTRA LOW RUNNING COSTS.
STARTING FROM
£99,000
Innovation
At ANX, we offer ultra low running cost annexes with exceptional EPC ratings 92 for energy efficiency and 98 for environmental impact. A 12 month trial has shown costs as low as £12 per month, and we cover the first 12 months of energy running costs for any new Annexe, making the first year free.
Our annexes feature precision engineered steel and aluminium cladding, concealed gutters, and premium finishes. Every detail maximises comfort and well being, with step free access throughout, ensuring the highest standard of living without compromise.
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ULTRA LOW
ENERGY£12 Per Month
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CUSTOM
SIZESWellness & Comfort
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STEEL
FRAMEWill Last a Lifetime
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STEP
FREEEasy Access
●ULTRA LOW ENERGY
Nilan P MVHR system, integrated solar, delivering heating, hot water, and air purification. Triple glazing, high performance insulation, and a heat loss minimising intelligent membrane ensure outstanding thermal efficiency.
●STEEL FRAME & CLADDING
Precision steel frame with maintenance-free aluminium cladding in a range of colours. Aluminium windows and doors, concealed gutters, and flush thresholds, including the patio, combine for a clean, durable exterior that maximises accessibility, longevity, and low-maintenance performance.
● Model 1
Annexe Model 1 pairs refined design with premium finishes. It features a Duravit, Bette, and Crosswater bathroom, a Howdens kitchen with Neff appliances, and engineered oak flooring in herringbone or linear. Every element is chosen for durability, style, and comfort offering an elevated, effortless standard of living.
A central MVHR system heats both air and water while actively purifying the air. With no need for radiators, you gain maximum usable wall space. Everything is neatly housed in a generously sized plant room, which also contains the solar controls keeping technical systems efficient, discreet, and easy to manage.
- Exterior
- Interior
- Bathroom
- Kitchen
● Drawings
Build the Annexe of a lifetime. Complete the form below to get started, and we’ll be delighted to discuss your project needs.
●OUR PROCESS
Why Choose Multigenerational Living?
Multigenerational living offers families greater flexibility, connection, and support. It allows for shared childcare, elderly care, and closer family ties—while also supporting financial independence for younger or older family members.
Read Our VAT Blog
Understanding the VAT treatment for annexes can make a significant difference to your budget. Visit our blog to learn how certain builds may qualify for zero or reduced VAT rates, and what that means for your project.

