Roofs in Lisbon: old buildings, rain and local rules
Lisbon has 49,223 buildings and 92.3% were built by 2000. See what that, the rain and the city council rules ask of a roof.
- Town
- Lisbon
- District
- Lisboa
The roofs of Lisbon
Lisbon is one of the oldest municipalities in the country in building stock. According to INE, 60.3% of its buildings date from before 1961, against 23.1% nationally. Only 7.7% are from this century. Almost everything above Lisbon streets was designed before today’s standards.
Many central buildings have tile on a timber structure. An LNEC study of a “gaioleiro” building in the Baixa describes Marselha tile on timber joists, with two main slopes and dormers. The same study dates gaioleiros to 1880-1930 and says they are an important part of Lisbon’s building stock. That holds for that building, not for all of them.
We found no official list of the roof types of each Lisbon neighbourhood. So we do not say here what the “typical roof” of Alfama or Campo de Ourique is.
SourcesIPMA, normal Lisboa / Gago Coutinho · INE, Census 2021 (0011482) · LNEC, study of a gaioleiro building · Lisbon council, ARU · gov.pt, affected municipalities
The buildings of Lisbon
49,223 buildings counted in 2021
- 92.3% built up to 2000 (country: 82.1%)
- 60.3% built before 1961 (country: 23.1%)
- 3.5% with deep repair needs (country: 4.6%)
The vertical mark on each bar is the share for the whole country.
Source: INE (Statistics Portugal), Census 2021, indicator 0011482, updated 12/11/2022. CC BY licence. The figures are for whole buildings, not roofs. An old building may have a renewed roof, and a recent building can have problems. The repair need is for the whole building, as assessed in the Census.
Rain, wind and sun in Lisbon
At the IPMA station Lisboa / Gago Coutinho (1991-2020) average rainfall is 722.5 mm a year and the mean temperature is 17.3 °C. There are 72.8 days a year with 1 mm of rain or more and 9.4 days with 20 mm or more. The wettest day was 18 February 2008, with 143.7 mm.
Frost is rare (0.1 days a year). Heat weighs more: 36.3 days a year with 30 °C or more, and 44.0 °C on 4 August 2018. A Lisbon roof deals little with cold and a lot with sun and short, heavy downpours.
Houses and roofs in Lisbon
Old apartment blocks
Rental blocks and “gaioleiro” buildings have timber-and-tile roofs, often with dormers. Leaks show at eaves, gutters and flashings. In multi-storey blocks the roof is a common part: see who pays in the condominium guide.
Recent blocks
In more recent concrete blocks the roof is often a slab with waterproofing. That is a different problem and a different job. Only 7.7% of the municipality’s buildings were built after 2000.
Rules and permits in Lisbon
In Lisbon the city council says (page updated 12 October 2026) that the revised RJUE (the national urban-works law) came into force on 1 October and that it is adapting procedures and digital services. The practical information was still to be published. Before hiring, check with the council which procedure applies to your job.
We did not read Lisbon’s municipal regulation or PDM (master plan) on roof materials and colours, nor the Baixa Pombalina rules. If the building is listed or in a protection zone, the cultural heritage opinion counts. Our permit guide explains the national rule.
Areas near Lisbon
Do you not live in Lisbon itself? These are the places around it. Each has its own page.
Cannot find your area? Write it in the form.
Rehabilitation area and the 2026 storms
On 28 October 2026 the council approved a new, wider boundary for the Urban Rehabilitation Area (ARU). It goes to the Municipal Assembly and should apply from 1 January 2027. Being in the ARU is one of the conditions for legal tax benefits (reduced VAT, IMI, IMT, IRS), which are not automatic.
Lisbon is not on the list of municipalities in calamity for storm Kristin nor on Despacho 2389-A/2026. The council logged 463 incidents on 28 January 2026 (mostly trees and structures) and gusts of 110 km/h. The news item does not mention roofs specifically.
General notes
As a rule, plain maintenance is exempt, but the revised RJUE came into force on 1 October 2026 and the council was still updating its practical information. Ask the council before you start and read the permit guide. For listed buildings or protection zones the heritage opinion counts.
The council logged 463 incidents, mostly fallen trees and structures, with floods and falling cladding. Lisbon is not on the official lists of municipalities in calamity. We have no figures for damaged roofs in Lisbon.
Being in the ARU is one of the conditions for tax benefits, among them reduced VAT on works. They are not automatic. The new, wider boundary was approved by the council on 28 October 2026 and should apply from 1 January 2027. Check whether your building is inside.
According to INE Census 2021, 60.3% of the municipality's 49,223 buildings date from before 1961. Nationally it is 23.1%. The figures are for whole buildings, not roofs.
The roof is a common part of the building. Under horizontal property, the work is decided at the assembly and paid by ownership shares. Our condominium guide explains the majorities needed.
Related guides
- Permit to change the roof: what changed on 1 October 2026What the revised RJUE (Decreto-Lei 108/2026) says about roof works: exempt maintenance and reconstruction, material swaps, what still needs a procedure and how to ask the council.8 min
- 6% VAT on roof works: rules, the materials limit and the invoiceWhen labour on roof works pays 6% VAT, the 20% limit on materials, what the invoice must say and what is left out (cleaning, new build, solar panels).8 min
- Condominium building roof: who decides, who pays and how to approve the worksThe roof is a common part, even over a single flat. Who pays for the repair, the majorities to repair or improve, urgent repairs, the minutes, the reserve fund and compulsory insurance.9 min
- Choosing a roofing contractor: licence, insurance, quote and warning signsHow to check an alvará or certificado with IMPIC, which insurance to ask for, what the quote and contract must contain, and the warning signs of doorstep offers.8 min
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