Public data cross-referenced (DGFiP, INSEE, ADEME), recorded on October 4, 2026.
Energy performance of the housing stock
Breakdown of homes in Sada by energy performance certificate (EPC) band. Since the loi Climat & Résilience (Climate and Resilience Act), it is this band that determines whether a home may be let.
Breakdown of energy performance certificates in Sada
A
C
D
A981.8%
B00.0%
C19.1%
D19.1%
E00.0%
F00.0%
G00.0%
11 homes surveyed. No home rated F or G appears in the recorded energy surveys.
Rental ban timeline
2025Gbanned
2028Fbanned
2034Ebanned
2021 loi Climat & Résilience (Climate and Resilience Act) — applies to new leases.
Counts and shares by band, across all energy surveys recorded in the municipality.
Source: ADEME, energy performance certificate database · recorded on October 4, 2026
Why this breakdown matters. A dwelling rated G can no longer be let under a new lease since 1st January 2025; F will follow in 2028 and E in 2034. A commune whose stock is largely rated F or G therefore faces a wall of renovation work, or an exit from the rental market.
Note: these figures cover surveyed homes, not the entire stock. A survey is only required on sale or letting, so homes occupied for a long time are under-represented.
Housing stock
Long-term empty dwellings
Private dwellings vacant for more than two years (2025)
260
Share of private housing stock
18.1%
Why vacancy of more than two years. A dwelling that stands empty for a few months is waiting for a buyer, a tenant or the end of building work: that is the normal breathing of the market. Empty for more than two years, it has left the market — a run-down property, a blocked inheritance, an owner who will neither let nor sell. We do not publish total vacancy from the same file: its national level varies by a third from one year to the next without the housing stock having changed, which rules out any comparison.
Source: LOVAC (Cerema, DGFiP), vacant dwellings in the private housing stock · recorded on October 4, 2026
Dwellings authorised for construction in Sada
050100
66
202120222023202420252026*
Flats (multi-dwelling buildings)Detached houses* current year, incomplete
Dwellings for which a building permit has been granted, by year of authorisation. An authorised dwelling is not yet built: allow two to three years before delivery.View the data
Dwellings authorised by year
Year
Flats (multi-dwelling buildings)
Detached houses
Total
2021
71
24
95
2022
44
22
66
2023
15
17
32
2024
129
17
146
2025
55
11
66
2026*
0
3
3
Source: Sit@del, ministry responsible for housing · recorded on October 4, 2026
Sources: INSEE (census), Sit@del · recorded on October 4, 2026
Population and households
Population
11,156
Source: INSEE, population census · recorded on October 4, 2026
Economic fabric
Number of businesses located in Sada
0100200201420162018202020222024240
Businesses in market activities, excluding agriculture, located in the commune and counted at 31 December each year. This is a stock: it shows the size of the local economy, not how much it is being renewed.View the data
Number of businesses by year
Year
Businesses
2014
0
2015
0
2016
0
2017
82
2018
104
2019
95
2020
82
2021
103
2022
103
2023
188
2024
240
Source: INSEE, business demography information system · recorded on October 4, 2026
Businesses: Sada compared with its département, its region and France
Sada
Mayotte
Mayotte
France
Number of businesses2024
240
5,359
—
6,437,729
Change in the number of businesses2019-2024
+152.6%+127.6 pts vs France
+146.4%
—
+25.0%
Under each value for the municipality: its gap with France. For a rate, the gap is in percentage points (12.4% vs 7.8% = +4.6 pts); for an amount or a ratio, as a percentage of the national value.
In what form do businesses operate?
Sole traders93168.9%
SAS and SASU1057.8%
SARL and EURL23217.2%
Civil companies, including SCI775.7%
Other forms60.4%
Businesses with an open establishment in Sada, by legal form. A sole trader operates in their own name — this is the status of micro-entrepreneurs; an SCI most often holds property assets rather than running an activity. This count is broader than the INSEE one above, which only includes market businesses with an economic activity.
Sources: INSEE (SIRENE register), INPI (national business register) · recorded on October 4, 2026
Registrations and insolvency proceedings
0204060
202120222023202420252026*
RegistrationsInsolvency proceedings
* current year, incomplete
On one side, announcements of registrations, business creations and takeovers; on the other, court-ordered safeguard, recovery and liquidation proceedings. Legal notices published under postcode 97640. A postcode may cover several communes: in a village, these figures describe the wider catchment area, not the commune alone.
From 2021 to 2025, 322 registrations for 15 insolvency proceedings.
View the data
Registrations and insolvency proceedings
Year
Registrations
Insolvency proceedings
2021
71
1
2022
64
1
2023
59
5
2024
54
5
2025
74
3
2026*
59
4
Source: BODACC, official bulletin of civil and commercial announcements · recorded on October 4, 2026
Sources: INSEE, BODACC · recorded on October 4, 2026
Local taxation
In 2024, the overall property tax rate on built properties is 28.46% in Sada.
Rate voted by the commune
22.00%
Intercommunal body, syndicates and special taxes
6.46%
Overall rate on built properties (total)
28.46%
Household waste collection tax (TEOM)
19.90%
Overall rate on undeveloped land
19.28%
Worked example
A dwelling with a cadastral rental value of €3,000 has a tax base of €1,500: the law sets it at half the rental value. In Sada, its property tax (taxe foncière) is €1,500 × 28.46% = €427 a year.
On top of this comes the household waste collection tax (TEOM), calculated on the same base: €1,500 × 19.90% = €298. A landlord can recover it from their tenant; the property tax (taxe foncière), by contrast, remains payable by the owner.
These amounts are before the collection charges retained by the State. Your property's rental value is shown on your property tax (taxe foncière) notice.
Property tax rate by year
Year
Communal rate
Overall rate on built properties
Household waste
2021
34.56%
40.51%
19.90%
2022
38.66%
44.72%
19.90%
2023
35.95%
42.62%
19.90%
2024
22.00%
28.46%
19.90%
Between 2021 and 2024, the overall rate changed by -12.05 point.
How to read these rates. Property tax (taxe foncière) is calculated by multiplying the property's tax base by the overall rate: this is the figure to compare between communes, not the communal rate alone. Since 2021, départements no longer collect property tax on buildings; their former share is included in the communal rate.
A high rate does not mean a high tax. The cadastral rental value is not the market rent: it is an administrative estimate based on 1970 rents, revalued each year by a national coefficient. In a town with old, low rental values, a 50% rate can cost less than a 25% rate elsewhere.
Source: DGFiP, local taxation for individuals (2024 scale) · recorded on October 4, 2026
Living environment
Public transport
10 public transport stops are located in the municipality, or 0.9 stops per 1,000 inhabitants.
Public transport stops in Sada
Stops10
Outline of the commune, north at the top.
Each dot is a bus, tram, metro or train stop. The map shows where the network is dense: it says nothing about frequency of service.
Source: transport.data.gouv.fr, scheduled timetables of networks · recorded on October 4, 2026
Stops by network
Réseau urbain TMCO10
Collèges (lower secondary schools)
Establishments
1
Average exam pass rate
90.0%
Average index of social position
91.2
See the establishments
Establishments in the commune
Establishment
Type
Success rate
Social position
COLLEGE MARIAMA SALIM
Collège (lower secondary school)
90.0%
91.2
How to read these figures. The pass rate is that of the brevet for a collège and of the baccalauréat for a lycée. The index of social position summarises pupils' social background: the national average is close to 100, and a higher index indicates more advantaged families. Nursery and primary schools are not covered.
Source: Ministry of National Education · recorded on October 4, 2026
Fixed internet
Dwellings and premises connectable to fibre0.0%
0 connectable out of 2,421
Connectable means that optical fibre reaches the building or the street and a subscription can be taken out, not that the dwelling is already subscribed.
Source: ARCEP, fibre rollout · situation as at June 2026
Electric cars
Of the 97 passenger cars registered in the commune in 2024:
Electric cars2.1%
Plug-in hybrids0.0%
Why this share may look high. These are cars registered during the year, not all those on the road: electric vehicles weigh far more in recent purchases than in the overall fleet. Company and rental vehicles are also registered at the company's address, which inflates the share in communes that host head offices or rental firms.
Source: Ministry of Ecological Transition, passenger car registrations · recorded on October 4, 2026
Natural and technological risks
The risks identified by the State in the territory of Sada, what they mean, and what they change for a property.
Radon potential
Significant potentiallevel 3 out of 3
Radon is a natural radioactive gas that rises from granitic and volcanic soils and can build up in poorly ventilated rooms, especially on ground floors and in basements.
For a property: At this level, the seller or landlord must inform the buyer or tenant. Good ventilation and a sealed ground floor are usually enough to reduce exposure.
Risk prevention plans
2in the commune
The commune is covered by a prevention plan for: flooding, ground movement. This is a document issued by the prefect that delimits the exposed zones.
For a property: In the delimited zones, building or extending may be prohibited or subject to requirements. The plan does not necessarily cover the whole commune: only the risk statement provided before a sale or letting says whether the address is affected.
Classified installations (ICPE)
1in the commune
A classified installation is an activity that the law subjects to declaration or authorisation because it may cause nuisance: factory, warehouse, livestock farm, petrol station, waste recycling centre, boiler room.
For a property: Their number mainly reflects the commune's economic activity: most pose no danger to neighbours. What matters is their nature and their distance from the property.
Installations and cavities recorded in Sada
Classified installations1
Outline of the commune, north at the top.
Location of known classified installations, Seveso sites and underground cavities.
Source: Géorisques, Ministry of Ecological Transition · recorded on October 4, 2026
A prevention plan is not a bad sign in itself. It shows that the risk is mapped and regulated; it is its absence for a known hazard that should raise questions.
This page describes the commune, not an address. Before a sale or a letting, the seller or landlord must provide a risk statement drawn up for the property. You can obtain one free of charge for any address at georisques.gouv.fr.
Source: Géorisques, Ministry of Ecological Transition · recorded on October 4, 2026
Frequently asked questions — Sada
How many inhabitants does Sada have?
Sada has 11,156 inhabitants (INSEE census).
What share of energy-inefficient homes are there in Sada?
0.0% of surveyed homes are rated E, F or G on the energy certificate (source ADEME).
What is the property tax rate in Sada?
The overall property tax rate on built properties is 28.5%, of which 22.0% is voted by the commune (source DGFiP).
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