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Île-de-Sein
Rural municipality · 29990 · Bretagne
👥 Population
263
2023 · INSEE
🏠 Median price /m²
€
📈 0% since 2015
💰 Gross yield
None %
rent / purchase price
⚡ Avg. energy rating
E
✅ 0.0 % energy sieves (F-G) (F-G)
🎯 Investment score Average
Île-de-Sein — Score 54/100.
54
💰 Yield50
🌳 Quality of life53
📊 Dynamism100
💸 Affordability50
🛡️ Safety14
⚡ Energy rating58
🏘️ Rental market & tension
INSEE Housing Stock 2021 · Pinel ABC zoning · Tense areas
🏠 Main residences
45.9 %
🏖️ Secondary homes
47.6 %
Highly touristic market
🚪 Vacant homes
6.4 %
🏢 Apartments
14.8 %
84.5 % houses
🎯 Pinel zoneⓘOfficial Pinel zoning. A Bis = very high tension (Paris, French Riviera), A = high tension (metropolises), B1 = moderate, B2 = low, C = relaxed market.
B1
Moderate tension
⚖️ Tense area (ALUR law)ⓘTense area under article 232 of the French Tax Code (CGI) / ALUR law. Enables rent control and applies the vacant housing tax.
Yes
Rent control possible
🏢 Social housing units
13
RPLS source
💶 Local taxation
REI · DGFIP · Exercice 2024
🏠 Property tax (built)ⓘMunicipal property tax rate on built properties (TFB). Applied to the cadastral rental value to calculate the owner's annual property tax.
15.970 %
Global rate 2024
👥 Demographics
API Geo + INSEE
🧑🤝🧑 Inhabitants
263
2023
📐 Area
0.55 km²
478 inh/km²
📊 Median age
60.0 yrs
13.6% under 30
💼 Activity rate
71.5 %
ages 15-64
📉 Unemployment rate
10.6 %
2021 census
🏢 Local economy & dynamism
SIRENE · INSEE
🏢 Active businesses
85
SIRENE database 2026
✨ 2024 creations
4
-20.0% vs 2023
📊 2023 creations
5
💼 Economic density
323
Businesses / 1,000 pop.
🚉 Transport & accessibility
SNCF Open Data · INSEE Urban Areas 2020
🚆 Nearest train station
Brest
À 47.89 km · Segment A
🏙️ Urban attraction areaⓘUrban Attraction Areas (INSEE 2020): municipal classification based on commuting relationships with urban hubs. Main hub / secondary / suburban crown / outside.
Commune hors attraction des villes
Outside urban area
📍 Rail access
Poor
Station distance
🏥 Healthcare
BPE · FINESS
💊 Pharmacies
2
🏥 Établissements de santé
2
Source FINESS
💊 Pharmacies
2
🏪 Amenities & services
BPE · INSEE
📋 Services_publics
9
📋 Commerce
2
📋 Enseignement
1
🏥 Sante
5
⚽ Sport
5
🎭 Culture
1
⚡ Energy performance
1 DPE · ADEME
📊 Energy rating distribution
A
0.0 %
B
0.0 %
C
0.0 %
D
0.0 %
E
100.0 %
100.0 %
F
0.0 %
G
0.0 %
0.0 % energy sieves (F-G) (F+G) — Nat. average : 17 %
💶 Energy rating impact on price per m²
🏛️ Historical heritage
Mérimée database · 3 protected monuments
| Building | Era |
|---|---|
| menhir | Néolithique |
| maison | limite 19e siècle 20e siècle |
| maison | 1er quart 20e siècle |
⚠️ Natural and technological risks
Géorisques API · 5 risks identified
Par submersion marine
Radon
Rupture de barrage
Inondation
Séisme
💧 Drinking water quality
API Hub'Eau · 4 081 analyses · COMMUNE DE L'ILE DE SEIN
🧪 Bacteriology
✅ Compliant
⚗️ Physicochemistry
✅ Compliant
📋 analyses
4 081
🎯 Municipalities with a similar score
Same region, score close to
Guipavas
29490
54/100
15 538 Inhabitants
Châteaugiron
35410
54/100
10 845 Inhabitants
Rosporden
29140
54/100
7 550 Inhabitants
Saint-Pol-de-Léon
29250
54/100
6 941 Inhabitants
Plourin-lès-Morlaix
29600
54/100
4 548 Inhabitants
Mesnil-Roc'h
35720
54/100
4 492 Inhabitants
Nouvoitou
35410
54/100
3 911 Inhabitants
Trélivan
22100
54/100
2 865 Inhabitants
📍 Nearby municipalities
Nearest geographically
| City | Distance | Score | Pop. |
|---|---|---|---|
| Plogoff | 12.4 km | 29/100 | 1 131 |
| Cléden-Cap-Sizun | 14.4 km | 41/100 | 916 |
| Primelin | 18.5 km | 42/100 | 650 |
| Audierne | 21.5 km | 40/100 | 3 727 |
| Le Conquet | 37.3 km | 41/100 | 2 835 |
| Plougonvelin | 36.5 km | 44/100 | 4 521 |
| Beuzec-Cap-Sizun | 25.8 km | 43/100 | 1 008 |
| Camaret-sur-Mer | 32.0 km | 39/100 | 2 494 |
❓ Frequently asked questions about Île-de-Sein
Is Île-de-Sein a good real estate investment? ▶
Île-de-Sein has a ScorCity score of 54/100, making it a moderate investment.
What is the average energy rating in Île-de-Sein? ▶
The most common energy rating class in Île-de-Sein is E.
What are the natural risks in Île-de-Sein? ▶
5 risks are identified in Île-de-Sein: Par submersion marine, Radon, Rupture de barrage.