There looks to be only one possible way of increasing runway distances at SEN.
The runway itself is unextendable due to the location of Eastwood church at the S/W end - it would itself intrude into the Runway Strip. It does look, however, that if the present Runway Strip could be extended by just 90 ft (up to the wall of the church in effect) it would then be possible to have a greatly increased Clearway, thus increasing TODA on 24 considerably. The present Clearway is only some 200 ft in length as the Clearway cone as it exists would include the church if it were extended from its present starting point. If the Clearway started 90 ft further along the runway its cone would just miss the church.
To achieve the above it would be necessary to include the church graveyard in the Cleared Strip, as well as a small part of Eastwoodbury Lane (this being closed by lights/barriers when the runway is being used for pax departures/arrivals).
I don't know if RAL have looked at this and dismissed it as not feasible (for example, would standing gravestones be allowed in the Cleared Strip?).
If the above could be achieved it would, I estimate, give a very worthwhile increase in TODA on 24.
There also looks to be some scope to extend the Runway Strip at the N/E end as well, by about the same amount, but resulting in only a small increase in TODA due to the location of the railway line although TORA should increase by 90 ft on both runways.
LDA would not, of course, be increased by either of these changes.
A useful plan of the runways, including Runway Strip width and Clearways can be found on the SEN website on the Property page, development land section.
Any thoughts anyone?