Property prices in Castelldefels in 2026

Because there is no reliable public source at municipal level, and because a single figure means little: in Castelldefels, two properties five minutes' walk apart do not command the same value. Sites that show one are averaging listings — asking prices, not achieved prices. We would rather show you our real figures, say how many properties are behind them, and do the rest of the work on your property.

Families from the Barcelona metropolitan area and international executives, often connected to the international schools and the nearby airport.

How much is your house worth in Castelldefels?

A local advisor cross-checks three readings. None is enough on its own, and it is the gap between them that gives the range.

1. Comparable sales: what actually completed near you, at the deed — not what was asked in the listing.
2. The property itself: usable area, condition, aspect, floor or plot, works needed, and whether the paperwork is in order.
3. Current demand: how many buyers are looking for this kind of property here, right now, and at what budget.

A range based on real sales in your neighbourhood, from an advisor who works it.

Free, no commitment.

No tool can tell you from the address alone. What a property in Castelldefels is worth depends first on its area, then on its condition, aspect, year of construction and what has actually sold nearby in recent months. Our valuation starts from those and from a visit: it gives you a range, not a single figure — a seller who quotes a price to the last euro is almost always wrong.

We deliberately do not publish a price per m² for Castelldefels: there is no reliable public source at municipal level, and a single figure means little when a seafront property and one five minutes' walk inland do not command the same value. What we do publish are the prices of our own listings in the town, with how many there are — so you know exactly what you are looking at.

The only official measure available is the house price index published by Spain's INE for the autonomous community. We show it on this page with its period and a link to the source. It describes a regional trend, not your street: within one town, two areas can move in opposite directions.

In Castelldefels, the differences play out mainly between Castelldefels Platja, Centre / Can Bou, Bellamar. These are different markets with different buyers: one can sell in weeks while another takes months. It is the first thing our advisor looks at before suggesting a range.

No, and the gap is what surprises sellers most. From the sale price come the municipal plusvalía, agency fees, your notary and lawyer costs, and — if you are not a Spanish tax resident — the 3% withholding taken at signing. Our net proceeds calculator works this out on your own figures.

That is the most expensive mistake. An overpriced property gets its viewings in the first weeks, then nothing — and a listing that lingers ends up selling below its value after successive cuts that signal urgency to buyers. The right price from day one is what protects your negotiating margin.