Where is the Margem Sul — and how it relates to Lisbon
A guide to the south bank of the Tagus: what “Margem Sul” means, the nine municípios it covers, and how it relates to the other geographical terms — Grande Lisboa, AML, Setúbal Peninsula, concelho, freguesia, distrito — that come up when buying property here.
Updated May 2026One Place, Several Names
If you’ve been reading about property in this part of Portugal, you’ve already seen at least six different names for what often turns out to be roughly the same place. Margem Sul. Península de Setúbal. Greater Lisbon. Área Metropolitana de Lisboa. Distrito de Setúbal. Plus the índividual municípios (sometimes called concelhos) and the smaller freguesias within them.
These terms overlap, but none of them mean exactly the same thing. They’re used in different contexts — everyday speech, official documents, news articles, property listings, caderneta predial paperwork. Knowing which is which is genuinely useful when you’re buying.
This guide is a clear map between all of them. By the end you’ll know what each label refers to, when it’s used, and what it means for the property you’re looking at.
South Bank, North Bank, One Metropolitan Area
The Tagus splits the Lisbon metropolitan area into two halves. The Margem Sul is the southern one.
The Tagus (Tejo) is the river that flows through Lisbon and into the Atlantic. It separates the area into two clearly distinct halves — locals refer to them as the margem norte (north bank) and the margem sul (south bank). The city of Lisbon itself sits on the margem norte; everything south of the river, until you reach the Setúbal Peninsula’s Atlantic coast, is the Margem Sul.
What confuses foreigners is that “Margem Sul” is an everyday geographical name, not a formal administrative one. Officially, the area is governed by a different set of labels — metropolitan area, subregion, district, município. The next sections unpack each.
Área Metropolitana de Lisboa (AML)
The formal Lisbon metropolitan area — 18 municípios across both sides of the Tagus.
The Área Metropolitana de Lisboa — abbreviated AML — is the formal administrative grouping of the 18 municípios in and around Lisbon. Combined population around three million. The AML draws up shared planning, transport, and budget policy across all 18.
The AML is divided into two halves — the same two halves split by the river:
- Grande Lisboa (north bank): 9 municípios — Lisboa, Sintra, Cascais, Oeiras, Loures, Mafra, Amadora, Odivelas, Vila Franca de Xira. Population ~2.1m.
- Península de Setúbal (south bank): 9 municípios — Almada, Seixal, Sesimbra, Setúbal, Palmela, Barreiro, Moita, Montijo, Alcochete. Population ~900k.
You’ll see “AML” in news, market reports, and government documents. In everyday speech locals don’t use it — they say Lisboa for the city, Grande Lisboa for the wider north-bank area, and Margem Sul for the south bank.
Margem Sul = Península de Setúbal
Two names, one area — one formal, one everyday.
Península de Setúbal (Setúbal Peninsula) is the formal NUTS-III subregion name. It’s how the Portuguese state, the European Union and the statistical authorities (Pordata, INE) refer to the area.
Margem Sul is the everyday Portuguese name. It’s what locals say, what Portuguese listings use, what taxi drivers and friends refer to. Literally “south bank” — descriptive, no administrative weight.
Both terms refer to the same nine municípios. They’re used interchangeably depending on register: a planning document uses Península de Setúbal; a friend tells you they live in the Margem Sul.
(In English, “the south bank” is the natural translation and works well in conversation. SBRE uses it that way.)
Grande Lisboa — the North Side, for Context
The other half of the AML, just across the river.
Knowing which municípios sit in Grande Lisboa helps locate the Margem Sul on a mental map — the two are mirror halves of the same metropolitan area, with the Tagus between them. Grande Lisboa’s 9 municípios:
| Município | Position |
|---|---|
| Lisboa | The city itself. The administrative and economic centre of the whole AML. |
| Sintra | West of Lisboa. UNESCO heritage town and a large suburban hinterland. |
| Cascais | The Atlantic coastal município (Cascais, Estoril, Carcavelos). |
| Oeiras | Between Lisboa and Cascais along the Tagus estuary. |
| Loures | North of Lisboa — large, mixed urban and rural. |
| Mafra | North-west, includes the surf coast around Ericeira. |
| Amadora | Densely-populated município immediately north-west of Lisboa. |
| Odivelas | Suburban município directly north of Lisboa. |
| Vila Franca de Xira | The easternmost — agricultural Tagus floodplain. |
Lisboa as a city is just one of these nine municípios. When a foreigner says “Lisbon”, they usually mean the município of Lisboa specifically — not all of Grande Lisboa, and certainly not the AML. The other eight are separate places with their own councils, their own IMI rates and their own character.
The Margem Sul’s Nine Municípios
Each has its own council, its own freguesias, its own character.
| Município | Position / character |
|---|---|
| Almada | Directly opposite Lisbon. Cristo Rei, urban riverside, Costa da Caparica beaches. |
| Seixal | Bayside, just east of Almada. Mixed residential and historic shipbuilding heritage. |
| Sesimbra | Atlantic coast, fishing-village heritage, Arrábida natural park. |
| Setúbal | The regional capital. Port city, Sado estuary, the gateway to the Setúbal Peninsula proper. |
| Palmela | Interior, wine country, hilltop castle. Mix of agricultural and residential. |
| Barreiro | South of Lisbon across the Tagus. Industrial heritage with active regeneration. |
| Moita | Small município between Seixal and Setúbal. |
| Montijo | North-east shore of the Tagus estuary. Tied to the Vasco da Gama bridge. |
| Alcochete | The eastern tip of the AML, mostly estuary and reserve land. |
The Margem Sul covers a range — from dense urban Almada through suburban Seixal and Aroeira to rural Palmela and the wine country of Azeitão. It’s not one homogeneous area; it’s nine councils side by side.
Concelho, Município, Freguesia, Distrito
Four administrative terms that come up constantly. Here’s what each means.
Concelho = município
Two words for the same thing. Concelho is the older Portuguese term; município is the modern one (closer to the European-Union vocabulary). They’re used interchangeably — most official documents say município, conversational speech often says concelho. The Margem Sul has 9 of them. The AML has 18.
Each concelho/município is run by a câmara municipal (the municipal council) and a mayor (presidente da câmara). It sets its own IMI rate within national bounds, runs its own schools, handles building permits and AL (alojamento local) licensing, and collects local taxes.
Freguesia — the parish below
A freguesia is the smallest administrative unit in Portugal — a parish, beneath the município. Each município contains several freguesias, each with its own local council (junta de freguesia). They handle very local services — municipal cleaning, small public spaces, parish-level registrations — while the município handles the bigger picture.
For property buyers, the freguesia name appears prominently on every formal document — the caderneta predial, the certidão permanente at the land registry, IMI bills. When your lawyer pulls these documents, the freguesia is what locates the property administratively, alongside its conservatória registration number.
Marketing labels sometimes differ from freguesia names. A villa described as “Aroeira” sits in the freguesia of Charneca da Caparica e Sobreda (município of Almada). A property in “Quinta do Conde” is in the freguesia of Quinta do Conde (município of Sesimbra). Knowing both is useful — the marketing label tells you the neighbourhood character, the freguesia tells you what’s on the paperwork.
Distrito — the legacy 19th-century layer
The distritos are an older administrative framework, dating to 1835 and last reorganised in 1976. They’re largely obsolete for governance, but their boundaries survive in court jurisdictions, electoral districts, vehicle licence plates, and many official paper forms.
The Margem Sul sits within the Distrito de Setúbal — an older administrative unit that covers a wider area than the AML’s south-bank half. The Distrito de Setúbal includes:
- The nine Margem Sul municípios (Almada, Seixal, Sesimbra, Setúbal, Palmela, Barreiro, Moita, Montijo, Alcochete)
- Plus four more, southward into the Alentejo coast: Grândola, Santiago do Cacém, Sines, Alcácer do Sal
So “Distrito de Setúbal” on a document is broader than “Margem Sul” or “AML south bank”. Conversely the “Distrito de Lisboa” (16 municípios) is broader than “Grande Lisboa” (9 municípios) — it adds inland municípios like Azambuja, Alenquer, Lourinhã, Torres Vedras and Sobral de Monte Agraço.
Neither distrito crosses the Tagus. The river is also a distrito boundary.
All Six Terms, Side by Side
A reference table showing what each label covers, what kind of unit it is, and how many municípios it groups together.
| Term | Kind of unit | Covers | # of municípios |
|---|---|---|---|
| City of Lisboa | Município (concelho) | The single município of Lisboa. | 1 |
| Grande Lisboa | NUTS-III subregion | 9 municípios north of the Tagus inside the AML. | 9 |
| Margem Sul (everyday name) | Everyday geographical region | 9 municípios south of the Tagus inside the AML. | 9 |
| Península de Setúbal (formal name) | NUTS-III subregion | Same 9 municípios as Margem Sul. | 9 |
| AML / Área Metropolitana de Lisboa | Metropolitan area (formal) | Grande Lisboa + Península de Setúbal combined. | 18 |
| Distrito de Lisboa | Legacy administrative district | 16 municípios — Grande Lisboa’s 9 plus 7 interior ones outside the AML. | 16 |
| Distrito de Setúbal | Legacy administrative district | 13 municípios — the Margem Sul’s 9 plus 4 down the coast into the Alentejo. | 13 |
And below the município layer, each contains several freguesias (parishes) — the smallest unit. The Margem Sul’s 9 municípios have about 90 freguesias between them. The city of Lisboa, for comparison, has 24 freguesias.
Where Each Label Appears in a Purchase
The terms aren’t academic — they show up at specific points in the buying process.
- Município — the most important layer for a buyer. Sets the IMI rate, runs the câmara that approves any future works, governs AL licensing rules, runs the local schools. The município name appears on every property tax record.
- Freguesia — appears on the caderneta predial, certidão permanente and all formal property records. It’s how the property is located administratively. Marketing labels often differ from the freguesia name, so it’s worth verifying which freguesia your shortlisted property actually sits in.
- Distrito — appears on older paperwork, on the carta de condução (driving licence), and in court matters (if it ever comes to that). For most buying decisions it’s background.
- NUTS-III subregion (Península de Setúbal) — appears in statistics, news market reports, EU funding documents. Not part of the daily buying flow but useful context for understanding the wider area.
- AML — appears in metropolitan-area planning documents, transport policy, and many statistical references (“AML house prices rose X% last year” means all 18 municípios combined).
- Margem Sul — what locals use day-to-day. The label on Idealista’s map filter. The phrase you’ll hear from agents, neighbours, the people working on your purchase.
Most buyers don’t need to memorise all six. But seeing them in context makes the paperwork less confusing and helps you ask the right questions when an agent or lawyer uses one.
Common Questions
Is the Margem Sul part of Lisbon?
It depends what you mean by “Lisbon”. The Margem Sul is not part of the city of Lisbon (the município of Lisboa) — the city ends at the river. But it is part of the Área Metropolitana de Lisboa (AML), the formal Lisbon metropolitan area, which covers 18 municípios on both sides of the Tagus. In informal English, “Greater Lisbon” usually means Grande Lisboa (the north-bank side); the Margem Sul is its south-bank counterpart inside the AML.
What’s the difference between Margem Sul and Setúbal Peninsula?
None — they refer to the same nine municípios south of the Tagus. Península de Setúbal is the formal NUTS-III administrative name (used by the Portuguese state, INE, EU documents). Margem Sul is the everyday name (used in conversation, listings, news). Same area, different register.
What are the nine municípios of the Margem Sul?
Almada, Seixal, Sesimbra, Setúbal, Palmela, Barreiro, Moita, Montijo and Alcochete. They form the southern half of the AML.
What’s a concelho? Is it the same as município?
Yes — concelho and município are two words for the same unit. Concelho is the older Portuguese term; município is the modern term (closer to European Union vocabulary). They’re used interchangeably. There are 308 municípios in Portugal in total; the Margem Sul has 9 of them.
What’s a freguesia?
A freguesia is a parish — the smallest administrative unit in Portugal, sitting below the município. Each município contains several freguesias. The freguesia name appears on every formal property document (caderneta predial, certidão permanente, IMI bill) and helps locate the property administratively. The Margem Sul’s 9 municípios share around 90 freguesias between them.
What’s the AML?
The Área Metropolitana de Lisboa — the formal Lisbon metropolitan area. 18 municípios: 9 on the north bank (Grande Lisboa, including the city of Lisbon) and 9 on the south bank (Margem Sul / Península de Setúbal). Combined population around 3 million. You’ll see “AML” in news, market reports and planning documents; locals rarely use it in everyday speech.
What’s the Distrito de Setúbal? Is it the same as Margem Sul?
No — the Distrito de Setúbal is broader. It’s a legacy 19th-century administrative district that includes the 9 Margem Sul municípios plus four more south down the Alentejo coast: Grândola, Santiago do Cacém, Sines and Alcácer do Sal. The distrito appears on older paperwork and on driving licences but is largely obsolete for daily governance.
What’s the Distrito de Lisboa? Is it the same as Grande Lisboa?
Also no. The Distrito de Lisboa is also a legacy 19th-century district. It covers 16 municípios — the 9 of Grande Lisboa plus 7 more inland (Alenquer, Arruda dos Vinhos, Azambuja, Cadaval, Lourinhã, Sobral de Monte Agraço, Torres Vedras). Neither distrito crosses the Tagus — the Lisboa distrito is the north-bank-only area; the Setúbal distrito is south.
Why does my caderneta predial show a freguesia name I don’t recognise?
Marketing labels and freguesia names often differ. A property sold as “Aroeira” is in the freguesia of Charneca da Caparica e Sobreda. A property in “Quinta do Conde” is in the freguesia of Quinta do Conde. The marketing label is the neighbourhood name; the freguesia is the formal parish on the paperwork. Both are correct — just used in different contexts.