The TL4728 Square Kilometre

TL4728 National Grid Square

Based in the Eastern English Region.

TL4728 is within the post town of Bishop's Stortford, Hertfordshire.

The square is within Uttlesford District council.

The Point of Origin (0,0) is 592.62 Kilometres away. This is where the National Grid starts around 80 kilometres west of the Isles of Scilly.

Ordnance Survey Maps for TL4728

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Map Series	link	Ordnance Survey
Explorer 1:25,000 194 Hertford and Bishop's Stortford	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Explorer 1:25,000 195 Braintree and Saffron Walden	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey
Landranger 1:50,000 167 Chelmsford	Shop for this map on amazon.co.uk	Buy Direct from the Ordnance Survey

This extract is taken from the Ordnance Survey six-inch to the mile series surveyed from 1888-1913. The scale is 1:10,560.

The Square overlayed over the map represents the extent of TL4728 and the vertical and horizontal line divides the square into four quadrants

Dividing the TL4728 Square to get a six figure Grid Reference

A helpful reminder for calculating grid references is across the landing and up the stairs.

For example if your house was located in a square that in the fourth square across and sixth square up and you wanted to work out its six figure grid refence.

First, You would divide the four figure grid reference into three parts. TL , 47 and 28

Count across starting with zero. This would give you three. Make a note that X for Across (A Cross) = 3.

Count up starting with zero. This would give you five. Make a note that Y = 5.

So to put it together TL + 47 + 3 + 28 + 5 would give you the six figure grid reference of TL473285

TL	47		28
TL	47	3	28	5

A six figure grid reference would be accurate to 10 metres. To achieve a greater level of accuracy this 10 metre square would be divided into a grid 10 by 10 and the process repeated.

This would produce an 8 figure grid reference that would be accurate to a square metre!

Corner	Latitude	Longitude	Easting	Northing
South West Corner	51.930849	0.136674	547000	228000
South East Corner	51.930849	0.151637	548000	228000
North West Corner	51.940099	0.136674	547000	229000
North East Corner	51.940099	0.151637	548000	229000