Hi, this is the first example I have found similar to a legal battle I am having. I run a conservatory company and have built a 4m projection conservatory on a link detached property. To cut a long story short, the neighbour objected, the council took some time to decide the "status" of the property and decided it was not "detached", so when retrospective planning was applied for they refused it. We then appealed the decision which was refused on the grounds that the councils grounds were not unreasonable (although the definition didn't come into it), we then appealed an enforcement notice, pointing out that the statutory instrucment only defines "terraced" and "semi-detached" properties, and that there is no definition of "detached" in the Act. The Appeal was refused although they acknowledged that we had a good point. Next week we have to take down the conservatory. My client has MS and the whole process has worsened her condition. I am still grasping at straws to get a stop put on this. I have just found a post from the enforcement officer online asking in a local govt forum if anyone can define "link-detached" as detached dating back to when he looked at it. There is no guidance anywhere on the net for such a case, and I have yet to find a precedent. i hope this helps you, however, if your Local Authority has allowed yours as a "detached" property I would be delighted to receive details. I am sure in your case even if you went for planning it would be approved, in my case it was refused due to neighbouring properties being 2 metres higher than eachother!
Any useful comments from anyone else would be appreciated!!