Real Project: A Custom built Granny Annexe Near Brentwood
Every granny annexe project starts with a family situation, not just a design brief — and this recent build near Brentwood, Essex, is a good example of how a well-planned annexe can reshape a family's living arrangements for the better, for everyone involved.
The situation
This family lived in a large house near Brentwood — plenty of space, but increasingly more than an elderly couple needed to manage day-to-day. Meanwhile, their daughter needed somewhere to live. Rather than downsizing and moving away, or the daughter renting elsewhere, the family found a solution that kept everyone close: the parents moved into a new single-storey granny annexe built in their own garden, and their daughter took over the main house.
It's an arrangement we're seeing more families choose — rather than one generation "losing" the family home, the whole property gets reorganised to suit everyone's changing needs, without anyone having to move away from the area they know.
A single-storey design, for the right reasons
Single-storey living was the clear starting point for this build — no stairs to navigate, and a layout that keeps everything the couple needs on one accessible level. This is one of the most common design choices we make for elderly clients, and it paid off here in exactly the way it's meant to: a comfortable, easy, low-maintenance home to move into.
Designing around a specific need: living with sight loss
What made this project particularly important to get right was that the father is blind, and the annexe needed to genuinely work for him — not just be accessible in a general sense, but properly considered for how he actually moves through and uses a home day to day. That shaped a number of specific design decisions:
A clear, logical, consistent layout — keeping room positions and pathways simple and predictable, so the space is easy to navigate from memory rather than relying on sight.
Consistent flooring throughout, avoiding changes in level or surface that could create trip hazards or disorientation between rooms.
Strong tactile and textural cues — for example, distinct floor or wall transitions at key points like doorways, to help with orientation by touch.
Uncluttered circulation space — wide, clear pathways through the annexe, avoiding obstacles or awkward pinch points.
Careful switch and socket placement, positioned consistently and at predictable heights throughout, rather than varying room to room.
Good acoustic consideration, since sound cues become more important for orientation and awareness when navigating without sight.
None of this required the annexe to look or feel like an "adapted" space — the goal throughout was a genuinely comfortable, well-finished home that also happened to be thoughtfully designed around the father's needs, rather than a home with visible accessibility features bolted on.
Why this kind of detail matters
Every family situation we work on is different, and this project was a good reminder of why we always spend real time understanding the people who'll actually be living in the annexe — not just the site and specification. A general "accessible" design brief wouldn't have captured what this family genuinely needed; it took a proper conversation about the father's day-to-day life to get the details right.
The build
The project was completed in 16 weeks, in line with what we discuss with clients as a realistic timescale for a project of this size and complexity, once the design and Certificate of Lawful Development stages were finalised and work began on-site.
The outcome
The result is a comfortable, single-storey home in the parents' own garden — close to their daughter, who now lives in the family home next door, while each generation has their own independent space. For the father, the annexe was designed specifically around his needs, meaning the new home genuinely works for him day to day, rather than requiring him to adapt to it.
It's exactly the kind of outcome that makes this work rewarding — a practical solution to a real family situation, built around the people who'll actually be living there.
Thinking about a similar project?
If your family is weighing up a similar arrangement — parents moving into a garden annexe, freeing up the main house for the next generation, or building around a specific accessibility need — we'd be glad to talk it through. Every project starts with genuinely understanding your situation, not just your garden.
Considering a granny annexe or garden annexe for your family? Get in touch with Mobile Annexe Ltd for a free consultation. We build across Essex, Hertfordshire and the rest of the UK, and we'll work with you to design a home that genuinely fits your family's needs.
📞 07770 365734 ✉️ enquiries@mobileannexe.com
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