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Buying a house in Conflans-Sainte-Honorine

36,958 inhabitants, Yvelines (78), Île-de-France.

Median price in Conflans-Sainte-Honorine over five years of DVF: €4,404/m² for houses (1,290 sales) and €3,444/m² for flats (1,116 sales). That is 34% above the median of the municipalities of Yvelines. Property tax rate on buildings in 2025: 38.64% (municipality and intercommunality), plus a household waste tax of 7.95%. 35% above the department median (28.54%). Of 7,239 homes in Conflans-Sainte-Honorine with an energy certificate, 967 are rated F or G (13.4%). Home burglaries recorded in 2025: 7.7 per 1,000 homes, against 5.7 in the department and 5.6 in France. Among the municipalities of Yvelines, Conflans-Sainte-Honorine ranks 47th of 254 for the median house price, 75th of 145 for flat prices, 27th of 259 for the property tax rate, 138th of 245 for the share of homes rated F or G. INSEE code 78172, postcode 78700. Nearest municipality: Achères, 2.3 km away.

Your address in Conflans-Sainte-Honorine

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Conflans-Sainte-Honorine in figures

IndicatorConflans-Sainte-HonorineYvelinesFrance
Population36,9581,485,086-
House, median price€4,404/m²€3,892/m²-
Flat, median price€3,444/m²€4,100/m²-
Property tax (buildings), 2025 rate38.64%28.54% (median)40.3% (median)
Household waste tax (TEOM)7.95%--
Homes rated F or G13.4%14.4% (median)15.4% (median)
Burglaries / 1,000 homes7.75.75.6
Physical violence outside family / 1,0002.52.33.2
Criminal damage / 1,0006.86.37.9
Transfer duties (department)5%5%-

Questions

What is the price per m² in Conflans-Sainte-Honorine?

Median price in Conflans-Sainte-Honorine over five years of DVF: €4,404/m² for houses (1,290 sales) and €3,444/m² for flats (1,116 sales). That is 34% above the median of the municipalities of Yvelines.

What is the property tax rate in Conflans-Sainte-Honorine?

Property tax rate on buildings in 2025: 38.64% (municipality and intercommunality), plus a household waste tax of 7.95%. 35% above the department median (28.54%).

Where does Conflans-Sainte-Honorine stand in its department?

Among the municipalities of Yvelines, Conflans-Sainte-Honorine ranks 47th of 254 for the median house price, 75th of 145 for flat prices, 27th of 259 for the property tax rate, 138th of 245 for the share of homes rated F or G.

How many burglaries in Conflans-Sainte-Honorine?

Home burglaries recorded in 2025: 7.7 per 1,000 homes, against 5.7 in the department and 5.6 in France.

Municipalities near Conflans-Sainte-Honorine

MunicipalityHouse, medianProperty taxDistance
Achères€3,996/m²42.84%2.3 km
Maurecourt€4,056/m²34.9%3.8 km
Andrésy€3,913/m²46.07%4.5 km
Chanteloup-les-Vignes€3,300/m²44.43%5.5 km
Maisons-Laffitte€8,283/m²30.82%6.9 km
Triel-sur-Seine€3,643/m²39.36%7.4 km

Read more: every municipality in Yvelines, the notary fees calculator, what to check before buying.

Sources: INSEE, DVF, REI, SSMSI, ADEME, DGFiP.

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