Cascais or Lisbon: where should you buy? (2026 comparison)

Cascais and Lisbon head to head

Both figures below compare municipality with municipality, on the same source and period. INE medians are what buyers actually paid; idealista figures are asking prices.

	Cascais municipality	Lisbon municipality
INE median paid, 12 months to March 2026	€4,687/m²	€5,082/m² (+15.2% in a year)
INE median paid, Q1 2026	€5,000/m²	€5,292/m², the highest in Portugal
INE median paid, calendar year 2025	€4,550/m²	€4,875/m²
INE median paid, new homes, 12 months to March 2026	€5,027/m²	€6,226/m²
idealista asking, August 2026	€6,055/m² (+2.6% in a year)	€6,227/m² (+3.2% in a year)
A 100 m² home at the 12-month INE median	€468,700	€508,200
Asking rent (idealista)	€22.8/m² a month (July 2026)	€24.5/m² a month (August 2026)
New short lets (AL)	No regulation or suspension found on cascais.pt	Banned in six central parishes since 6 December 2025
Getting around	Cascais line to Cais do Sodré, about 40 min from Cascais, 29 min from Parede; car for inland areas	Metro, trams, buses; airport inside the city
International schools	St. Julian’s, St. Dominic’s, King’s College; CAISL and TASIS nearby in Sintra	Lycée Français Charles Lepierre, Redbridge, PaRK, United Lisbon, German School
Typical stock	Flats on the train line; villas and townhouses in Estoril, Birre, Quinta da Marinha, Alcabideche	Mostly flats: period buildings, 20th-century blocks, new developments
Feel	Seaside town and suburbs, slower pace	Capital city, dense, walkable, busy

The per-m² gap depends on where you look. Prime Lisbon parishes run far above Cascais: Santo António (Príncipe Real, Avenida da Liberdade) had a median of €6,986/m² paid, Avenidas Novas €6,000/m². Cascais e Estoril parish, the coastal strip, was €5,459/m², close to Belém’s €5,498/m². At the other end, Alcabideche (€4,159/m²) and São Domingos de Rana (€3,934/m²) in Cascais are cheaper than almost every Lisbon parish; only Santa Clara (€3,733/m²) is lower. Parish figures are INE data for the 12 months to March 2026 as republished by mra-bio.me, because INE’s database was unreachable when we checked. idealista changed its method in July 2026, so do not compare these asking prices with older idealista figures.

What does the same budget buy?

Worked example: a 100 m² home at each municipality’s 12-month INE median, bought for cash by a non-resident. Since 25 May 2026 buyers who are not tax resident pay a flat 7.5% IMT (property transfer tax, Decree-Law 97/2026). Stamp duty is 0.8%, and the government’s Casa Pronta deed service costs €375 without a mortgage.

	Cascais	Lisbon
Price (100 m² × median)	€468,700	€508,200
IMT 7.5% (non-resident)	€35,152.50	€38,115
Stamp duty 0.8%	€3,749.60	€4,065.60
Casa Pronta	€375	€375
Total with taxes	€507,977.10	€550,755.60
IMT for a resident buying a main home (8% − €13,763.35)	€23,732.65	€26,892.65
Extra IMT for a non-resident	€11,419.85	€11,222.35

The €42,778.50 difference is modest. Put the other way, €500,000 buys about 98 m² at Lisbon’s median, 107 m² at Cascais’ and 120 m² at inland Alcabideche’s €4,159/m²; Lisbon’s stock is mostly flats, while Cascais still has houses with gardens. A buyer who becomes tax resident within two years, or lets at a moderate rent, can reclaim the IMT difference by applying within six months. Run your own numbers in the buying cost calculator.

Families

Cascais wins on space and schools in the municipality itself: St. Julian’s in Carcavelos, St. Dominic’s in São Domingos de Rana and King’s College in Cascais, with CAISL and TASIS a short drive away in Sintra. Cascais also had the highest median for homes with four or more bedrooms (€5,000/m²) of Portugal’s 24 largest municipalities, which shows where family demand is. Lisbon is the choice for the French and German curricula: the Lycée Français Charles Lepierre is in Campolide, and the German School’s Estoril primary campus closes from the 2026/27 school year, leaving only its Lisbon site. In Lisbon, Parque das Nações (modern flats with parking), Alvalade (planned mid-century streets and parks) and Belém’s Restelo (villas and large flats) are the obvious family districts.

Retirees

Both work well without a car if you choose carefully. In Cascais that means living near the train: Cascais centre, Monte Estoril, Estoril or Parede. In Lisbon, the flatter planned districts (Avenidas Novas, Alvalade, Parque das Nações) are easier than the hills of Alfama, Graça or Chiado, where older buildings often lack lifts. Lisbon’s historic centre has cooled: Santa Maria Maior’s median paid fell 0.5% in the 12 months to March 2026.

Remote workers and professionals

Lisbon suits those who want the city itself: the airport inside the city, the business district in Avenidas Novas and the metro. Cascais suits those who want the beach every day and go into Lisbon once or twice a week; trains leave Cascais every 15 minutes on weekday mornings. Road journey times on the A5 were not verified, so try the commute at rush hour.

Investors

Short lets are the dividing line. Lisbon’s amended short-let regulation, in force since 6 December 2025, bars new registrations in Santa Maria Maior, Misericórdia, Santo António, São Vicente, Arroios and Estrela, and in containment areas a registration normally expires when the property is sold. We found no comparable restriction in Cascais, though Decree-Law 151/2026 gives large short-let municipalities until 31 December 2026 to decide on rules. Long-term rents are close: €24.5/m² a month in Lisbon against €22.8/m² in Cascais. Homes let at up to €2,300 a month qualify for a 10% tax rate on rental income from 2026 to 2029, and for a refund of the extra IMT a non-resident paid. Lisbon’s council also has a right of first refusal on some sales, exercised through the Casa Pronta pre-emption notice (€15; public bodies have 10 working days to reply), which adds a step to the timetable.

Market direction

Both markets have slowed. Lisbon asking prices have edged down each month since April 2026, and 10% of Lisbon city listings had a price cut in Q1 2026. In Cascais, asking prices on the Cascais and Estoril coast have been flat since May 2026, while inland Alcabideche (+10.6%) and São Domingos de Rana (+12.2%) kept rising. Buyers domiciled abroad paid more in both: in Lisbon, €6,325/m² against €5,000/m² for domestic buyers (INE, 12 months to March 2026).

Choose Cascais or Lisbon?

Choose Cascais if:

• you want a house, garden or sea view rather than a flat;
• your children will attend St. Julian’s, St. Dominic’s, King’s College, CAISL or TASIS;
• you go into Lisbon a few times a week, not every day;
• you want the option of a short let and accept the rules may change after 31 December 2026.

Choose Lisbon if:

• you want to live without a car in a capital city;
• you need a French or German school, or the airport close by;
• you want period architecture or a new-build flat in an established district;
• you plan to let long term, where rents are slightly higher.

Next steps: buying in Cascais and buying in Lisbon cover neighbourhoods and costs; the agent lists for Cascais and Lisbon give licence numbers; the hubs for Cascais & Estoril and Lisbon collect everything else. If you are also weighing Sintra, see Sintra or Cascais.

Key points

• Prices paid, 12 months to March 2026 (INE): Lisbon €5,082/m², Cascais €4,687/m², about 8% apart. Asking prices in August 2026: €6,227/m² and €6,055/m² (idealista).
• Prime Lisbon (Santo António €6,986/m²) is dearer than coastal Cascais (€5,459/m²); inland Cascais is cheaper than almost all of Lisbon.
• A non-resident pays about €508,000 all-in for a 100 m² home at the Cascais median and €551,000 in Lisbon.
• New short lets are banned in six central Lisbon parishes; we found no restriction in Cascais.
• Cascais has three international schools in the municipality; Lisbon has the French lycée and, from 2026/27, the only German School campus.
• Trains from Cascais reach Cais do Sodré in about 40 minutes.