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Building permits and projects in Osny

492 building permits

A real permit, blanked out

Works on an existing building (extension) — public or community services (1,523 m²). Site area 7,156 m²

Where
Osny
Month
2026-01
Trades
Excavation & demolition, Concrete & structural +4

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Source: SDES — Ministère de la Transition écologique, the official register. Newest entry: 2026-06-19.

Busiest trades here: Concrete & structural (492) → France · Electrical (492) → France · Plumbing & drainage (492) → France · HVAC & ventilation (487)

Nearby localities: Génicourt · Cergy · Boissy-l'Aillerie · Pontoise · Livilliers · Ennery

Most recent cases

What is being built Decision Date Reference
Works on an existing building (extension without conversion) — 1 dwelling, 67 m² of housing floor area. Site… GRANTED Decided 2026-06-19 Not in a subscription yet
Works on an existing building (extension without conversion) — public or community services (6 m²). Site area… GRANTED Decided 2026-04-16 Not in a subscription yet
Works on an existing building (extension) — public or community services (1,523 m²). Site area 7,156 m² GRANTED Decided 2026-01-05 Included in France · public works

Included in the subscriptions on sale: 12 of 492

France · public works · €69/month excl. VAT, that is €2.27 a day

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492 building permits on record, 467 granted.

492permits
467granted

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Osny
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What is being built Decision Date Reference
New construction — public or community services (603 m²). Site area 66,110 m² GRANTED Decided 2025-07-04 [subscribers only]
Works on an existing building (conversion without extension) — public or community services (109 m²) GRANTED Decided 2024-07-18 [subscribers only]
Works on an existing building (conversion without extension) — public or community services (234 m²), retail… GRANTED Decided 2023-11-09 [subscribers only]
New construction — public or community services (4,889 m²), housing (390 m²). Site area 10,844 m² GRANTED Decided 2023-04-04 [subscribers only]
Not in a subscription on sale: 26 more on this page
What is being built Decision Date Reference
Works on an existing building (extension without conversion) — 2 dwellings, 35 m² of housing floor area. Site… GRANTED Decided 2026-04-15 [not in any subscription on sale]
New construction — 4 dwellings, 186 m² of housing floor area. Site area 578 m² GRANTED Decided 2026-03-16 [not in any subscription on sale]
Works on an existing building (extension without conversion) — public or community services (80 m²). Site… GRANTED Decided 2026-02-09 [not in any subscription on sale]
Works on an existing building — housing (12 m²). Site area 404 m² GRANTED Decided 2026-02-06 [not in any subscription on sale]
Works on an existing building (extension without conversion) — retail (2,855 m²). Site area 51,059 m² GRANTED Decided 2026-01-08 [not in any subscription on sale]
Works on an existing building (extension without conversion) — 1 dwelling, 28 m² of housing floor area. Site… GRANTED Decided 2026-01-05 [not in any subscription on sale]
New construction — industry (4,963 m²), offices (800 m²), housing (80 m²). Site area 8,000 m² GRANTED Decided 2026-01-05 [not in any subscription on sale]
New construction — public or community services (5,743 m²). Site area 12,247 m² GRANTED Decided 2025-12-02 [not in any subscription on sale]
Works on an existing building (extension without conversion) — 1 dwelling, 126 m² of housing floor area. Site… GRANTED Decided 2025-11-07 [not in any subscription on sale]
Works on an existing building (conversion without extension) — public or community services (6,563 m²). Site… GRANTED Decided 2025-10-29 [not in any subscription on sale]
New construction — 1 dwelling, 77 m² of housing floor area. Site area 237 m² GRANTED Decided 2025-09-30 [not in any subscription on sale]
New construction — 281 dwellings, 6,934 m² of housing floor area. Site area 11,475 m² GRANTED Decided 2025-07-02 [not in any subscription on sale]
New construction — public or community services (566 m²). Site area 8,345 m² GRANTED Decided 2025-06-20 [not in any subscription on sale]
New construction — 1 dwelling, 89 m² of housing floor area. Site area 300 m² GRANTED Decided 2025-05-19 [not in any subscription on sale]
Works on an existing building (conversion without extension) — 1 dwelling, 85 m² of housing floor area. Site… GRANTED Decided 2025-05-07 [not in any subscription on sale]
New construction — 1 dwelling, 160 m² of housing floor area. Site area 314 m² GRANTED Decided 2025-04-08 [not in any subscription on sale]
New construction — 4 dwellings, 205 m² of housing floor area GRANTED Decided 2025-04-07 [not in any subscription on sale]
New construction — 1 dwelling, 162 m² of housing floor area. Site area 300 m² GRANTED Decided 2025-03-04 [not in any subscription on sale]
Works on an existing building (conversion without extension) — public or community services (201 m²). Site… GRANTED Decided 2025-02-06 [not in any subscription on sale]
New construction — 1 dwelling, 97 m² of housing floor area. Site area 479 m² GRANTED Decided 2025-01-20 [not in any subscription on sale]
Works on an existing building (conversion without extension) — 5 dwellings, 407 m² of housing floor area… GRANTED Decided 2024-12-16 [not in any subscription on sale]
New construction — 1 dwelling, 141 m² of housing floor area. Site area 303 m² GRANTED Decided 2024-12-10 [not in any subscription on sale]
New construction — retail (743 m²) GRANTED Decided 2024-11-12 [not in any subscription on sale]
Works on an existing building (extension without conversion) — industry (7,475 m²). Site area 132,617 m² GRANTED Decided 2024-11-05 [not in any subscription on sale]
New construction — 16 dwellings, 1,513 m² of housing floor area. Site area 9,236 m² GRANTED Decided 2024-10-29 [not in any subscription on sale]
Works on an existing building (conversion without extension) — 1 dwelling, 88 m² of housing floor area. Site… GRANTED Decided 2024-10-15 [not in any subscription on sale]

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