Roods & Perches!

Dealing with boundary disputes involves reading legal documents, many of which date back to long before the introduction of decimal units. As such, if a reference is made to the length of a boundary, it is more often than not, specified in terms of feet and yards. This is straight forward as most people know what an inch is, and many will know that there are 25.4mm to the inch.  Most people will also know that there are 12 inches to a 1 foot and 3 feet to a yard etc. It is not a difficult task to convert these imperial dimensions into the metric units.

However, what about units of area? It is not uncommon to hear people refer to land area in terms of Acres. But have you heard of  a Rood? or a Perch? On several occasions now I have been reading a conveyance and come across these terms. But what are they?

I had to use that wonderful resource ‘Google’ to find some answers. On a website I found some useful answers …… and some information that made things more confusing.

The Rood

Generally the Rood was considered to be an area of 1210 square yards. Which is equivalent to a quarter of an Acre.

The Perch

This is a confusing measurement. On the website mentioned above, the Perch is a unit of length, whereas the in the conveyance I was reading it is a unit of area. It is sometimes referred to as a ‘Rod’ or ‘Pole’.  It is commonly considered to be 5 1/2 yards long or 16 1/2 feet and used mainly in relation to land. In some instances the ‘Square Perch’ was referred to a Perch.

This is one of the reasons I enjoy working with boundaries. They are endlessly fascinating and not ‘run-of-the-mill’ surveying.

Have you any questions that you’d like us to investigate in relation to a boundary problem? Contact us and send your question. 



Boundary Misconception

‘I own my left boundary!’

‘My boundary is the boundary to the left of my property’

This is a commonly held misconception. which I have heard on many occasions. It is not clear where this theory comes from, but it is a false assumption. Neither is it correct to say ‘I own the boundary to the right of my property’

If you stop and think about it, this theory does not make sense. For example it doesn’t consider front or rear boundaries and it doesn’t allow for those properties at the end of a row of similar houses that are responsible for two boundaries. In the example above, (click on the plan to see it better) it is clear that there are a number of properties that cannot conform to the convention, whether it be for the left or right side of the property.

The only way to ascertain ownership of the boundary, is to look at the title deeds. It is hoped that these documents will provide an answer to the boundary ownership question. Either in the register (the written bit), where the boundaries may be described or, on the plan, where there you may see a ‘T’ mark. If you see the ‘T’ on your side of the boundary line then you are responsible for that boundary feature. Most of the time there is no useful information. We must therefore assume that the boundary is shared.


Bridging the gap between “Real World” and “Virtual World”

Bridging the gap between Real world and Virtual world

Latest technologies are revolutionising the way we plan, design, manage and build in the construction industry. Technologies such as virtual and augmented reality are increasingly intersecting with our physical world and are becoming the mainstream across many areas of our everyday life. Surely these technologies provide us with the possibility to digitise real world objects the way we see them, as we live in a 3D space and every object around us has a third dimension to it. What does this mean for the construction sector? Continue reading Bridging the gap between “Real World” and “Virtual World”

2D or not 2D: that is the question

It’s not just about creating Revit models!! (Other softwares are available)

I was recently talking to a client who didn’t realise that all the survey data that CGD collects is 3 dimensional. Whether it is a Topographic or building survey all data collected is 3D information. When a client asks us to produce floor plans, elevations or sections we are producing 2D information from the 3D data. When asked to produce a topographic survey showing only 2D information with the levels annotated we are removing some of the intelligence of the information collected. Continue reading 2D or not 2D: that is the question

Knowing me, knowing you…. Aha

Knowing me, knowing you…. Aha

Scene Webshare… Connecting you directly to your project. (Click here to see our example)

The adoption of laser scanning technology for survey measurement has brought about the ability to capture huge amounts of field data more quickly and accurately. One of the great advantages of point clouds is that they are three-dimensional allowing the data to be visualised interactively using 3D fly-throughs or panoramic views. Continue reading Knowing me, knowing you…. Aha

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