GUADALMINA BAJA
The sea side of the A-7 at the western edge of Marbella municipality, between San Pedro de Alcántara and the Estepona boundary.
Flat, low-density and unusually large-plotted for Marbella: the streets are wide, the houses sit back, and the plots are big enough that the built area is rarely the constraint. A golf course runs through it and the beach is walkable from most of it. The stock is almost entirely detached villas, with very little apartment product, so the median here reflects houses rather than a blend.
The 3 that mark the edges
Counted from 27 distinct homes asking €3,000,000 or more, deduplicated across the agencies listing them, 2 of which are on the market with more than one firm at once. 21 of the 27 come from a source that dates its listings individually; the rest publish one timestamp for the whole catalogue, so their prices are current but their edit dates are not evidence. Every figure is the agency's own asking price, linked above.
Numbers from the linked sources, dated as marked. Asking is not getting, for what sellers actually achieve, the catalogue keeps receipts.