Civil Engineer, Land Surveyor & Structural Supervisor in Sowme'eh Sara

Step one: know your boundaries precisely

On the plain of western Gilan, many plots have long been bounded by irrigation channels, hedges, rows of trees or paddy embankments. Those markers shift over time, and that is the root of many property disputes.

Before any sale, subdivision or build, a UTM survey gives a precise, defensible picture of the boundaries, side lengths and area. The same plan is the basis for a single-sheet title deed and many land-registry enquiries.

Step two: check the rules and setbacks

In towns, building rules come from the urban plans and are applied by the municipality. In villages with a dehyari, building permits are issued on the basis of the village Hadi plan, in cooperation with the Housing Foundation of the Islamic Revolution.

River buffers, road setbacks and power-line corridors must be checked before buying land. A plot that lies partly inside a buffer can face serious restrictions on building.

Step three: draw the plans from the real land

Drawings are only reliable when they are based on an accurate survey of the actual plot. Real dimensions, corner angles and distances to the boundaries must be in the drawings from the start, so there are no surprises on site.

Before excavation, a stake-out with surveying equipment ensures the grid lines and foundations are built exactly where they belong.

Step four: control the structure as it is built

Gilan lies in a seismically active zone, and across much of the plain the groundwater table is high and the soil is soft. In those conditions, foundation quality, bar spacing and laps, concrete cover and frame connections are decisive for safety.

None of these details can be seen once the concrete is poured. A structural supervisor present at the key stages, with a documented record of the results, is the only way to be sure the work is right.

Step five: keep a complete technical record

Final drawings, the UTM plan, supervision reports and signed records form a file that pays off later in a sale, for insurance, renovation or adding a floor. A building with a complete technical record carries more value and credibility.