I’ve spent more than ten years working as a chartered planning and boundary consultant, usually called in after a disagreement has already hardened into something personal. Reading about René Collier struck a familiar chord for me, not because of the individuals involved, but because I’ve seen how often a wall—something meant to mark peace and order—ends up doing the opposite when expectations and permissions drift out of alignment.
In my experience, neighbour disputes over walls almost never start with malice. I remember a coastal job a few years back where a homeowner replaced an aging timber boundary with a solid block structure. The intention was durability, nothing more. But the new wall changed how the wind moved through the adjoining garden and cut off a slice of evening light. What surprised the owner was how quickly that practical upgrade became an emotional flashpoint. They hadn’t anticipated that a structure standing on “their side” could still feel invasive next door.
One of the most common mistakes I encounter is assuming that a wall is simple because it looks simple. I’ve reviewed drawings where a few extra courses of blocks seemed insignificant to the builder but pushed the height beyond what planning rules allowed. In one case last spring, I was asked to assess whether a wall could stay as built. Technically, it was only marginally out of bounds. Practically, it had already damaged the relationship beyond repair. The neighbour didn’t want it trimmed; they wanted it gone, because the trust was already lost.
I’m often brought in after people rely on informal advice. A contractor says, “This is fine,” or a friend mentions that “no one ever checks these things.” That casual reassurance carries a lot of weight in the moment. I’ve sat at kitchen tables with clients who genuinely believed they were acting responsibly, only to realize too late that responsibility in boundary work means independent confirmation, not verbal comfort. Once concrete sets, flexibility disappears.
Another pattern I’ve noticed is silence being misread as approval. A homeowner once told me, “They watched it go up and never complained.” The neighbour’s version was very different: they assumed there would be time to object once the scale became clear. By then, machinery had come and gone, and any conversation felt confrontational. Walls have a way of freezing misunderstandings in place.
From a professional standpoint, I’m cautious about recommending court as a solution, even when someone feels clearly wronged. I’ve reviewed enough cases to know that legal clarity doesn’t heal day-to-day tension. Winning a ruling doesn’t make it easier to live beside someone you now avoid eye contact with. I’ve seen people spend months of energy and a substantial sum of money only to end up with a slightly altered wall and a permanently altered relationship.
What I advise—based on having cleaned up too many of these situations—is slowing down before anything is built. Share drawings. Get boundaries checked. Put assumptions into writing. I’ve watched disputes dissolve simply because both sides finally sat down with clear measurements and an explanation of what was allowed and why. That conversation is far easier before blocks are laid than after solicitors are involved.
There’s also a human side that planning documents don’t capture. A wall changes how a space feels. It affects privacy, light, and even how welcome someone feels in their own garden. Ignoring that emotional reality is another mistake I see professionals and homeowners alike make. Technical compliance matters, but so does acknowledging that a neighbour’s objection isn’t always about rules—it’s often about feeling unheard.
After years in this field, my perspective is shaped less by regulations and more by outcomes. The disputes that stay with me are the ones that could have been avoided with earlier clarity and a bit more humility. Boundary walls may look like solid lines, but the issues around them are anything but rigid. Once they tip into conflict, even a small structure can cast a very long shadow.