Selling in Castelldefels
What homes here really sell for, what the council charges and what the law asks before you sign.
Selling in Castelldefels
A second opinion, with sources, before you sign. What homes here really sold for, what they would let for, what the council charges and what the law requires.
- Sale prices, Jul 2025–Jun 2026
- €5,041/m²
- Resale homes, average price per built m². 672 sales in 2025. Only completed sales count, never asking prices.
- Letting a flat, 2024
- €12.80/m² a month
- Median of SERPAVI, the Housing Ministry's rent index, based on 4,895 lets declared to the tax office (old and new, not just this year's); half of all lets fall between €10.58 and €15.46/m². Median rent: €907 a month; for a house, €1,600.
- Plusvalía: deadline to declare it
- 30 working days
- From the date of the sale. 2026 rate: 30% on the rise in land value, only if there is a gain. If you inherited it and the council cut the tax on that inheritance (by up to 95%), selling within 3 years means you lose that discount.
- If you let it instead of selling
- Rent-controlled area
- Law 12/2023 caps the rent on new contracts in some cases. For income tax, your rental income is reduced by 50% to 90%, depending on the case.
Before you sign
- Selling requires a registered energy performance certificate; the buyer receives a copy with the contract.
The law
Real Decreto 390/2021, arts. 3.1.b y 17 - The deed must show you are up to date with the owners' association (certificate from the secretary, approved by the president).
The law
Ley 49/1960, de Propiedad Horizontal, art. 9.1.e - Income tax: the gain on selling your main home is exempt if you reinvest the proceeds in another main home within 2 years. It counts as a main home after at least 3 years living there.
The law
Ley 35/2006, del IRPF, y Real Decreto 439/2007, su Reglamento, LIRPF art. 38.1; RIRPF arts. 41 y 41 bis - Income tax: from age 65 (or with severe or high dependency), the gain on selling your main home (or the one that was your main home in the previous 2 years) is exempt.
The law
Ley 35/2006, del IRPF, art. 33.4.b - Income tax: rental income from a home is reduced by 50%; 60% if renovated in the previous 2 years; 70% for a first letting in a stressed area to a tenant aged 18-35 (or to a social-housing body); 90% in a stressed area if the new contract cuts the rent by more than 5%.
The law
Ley 35/2006, del IRPF (redacción de la Ley 12/2023), art. 23.2
If you're inheriting the home, see the deadlines that overlap
Sources and dates
Buying in Castelldefels: Catalonia's transfer tax (ITP).
Catalonia charges 10% to 13% when you buy a resale home. You pay 5% on your main home if you're 35 or under, have a large or single-parent family, or a disability of 65% or more, and your taxable income is no more than €36,000.
- At the general rate
- €60,000
- At the reduced 5% rate
- €30,000
Agència Tributària de Catalunya. Rates read 19 September 2026.
We've read 2 council tax breaks in Castelldefels.
01Solar: 50% off for up to 5 years, up to €400IBI · see the small print
Solar thermal or photovoltaic: 50% of the gross charge, up to €400 per installation and never more than half the charge, for up to 5 consecutive years from the year after it is installed
- · Prior notice of works and the installer's final certificate
- · Installation registered with the Generalitat (RAC for photovoltaic, RITSIC for thermal)
- · Maintenance must be proven each year
02Large families: €500 offIBI · see the small print
€500 off the net charge, never more than 90% of it. Also for single-parent families
- · Main home, checked against the municipal census
- · Cadastral value up to €365,000
- · Not for homes let to tourists
- · Lasts as long as the large-family title