100% FORME POISSY

Strengths & weaknesses — by weighted effect

▲ Capture 100 — 3,688 residents + 4,961 workers, demand within 500 m against every competitor within 3 km

▲ Saturation 100 — 2 clubs / 43,664 residents = 4.58 per 100k against 11.01 nationally

▲ Income 100 — 27,320 EUR against 22,380 nationally, median of 2 IRIS within 500 m

Nothing scores below the middle of its range here.

How the score was reached — seven parameters, five measured separately at 500 m and 2 km

Parameter	Where	Measured	Score	How it was arrived at
Catchment 75 weight 20%	500 m	16,876 people	93	5,166 aged 18-64 + 11,709 workers = 16,876 over 0.79 km2 = 21,487/km2
Catchment 75 weight 20%	2 km	46,983 people	63	26,501 aged 18-64 + 20,482 workers = 46,983 over 12.57 km2 = 3,739/km2
Competition 60 weight 15%	500 m	1.00 wt	58	1 genuine gym floor and 1 other sports site within 500 m, weighted by substitutability and price tier
Competition 60 weight 15%	2 km	2.90 wt	62	2 genuine gym floors and 4 other sports sites within 2 km, weighted by substitutability and price tier
Capture 100 weight 20%	500 m	8,649 people	100	3,688 residents + 4,961 workers, demand within 500 m against every competitor within 3 km
Capture 100 weight 20%	2 km	17,517 people	100	10,269 residents + 7,249 workers, demand within 2 km against every competitor within 3 km
Saturation 100 weight 15%	500 m	not measured	—	catchment of 8,356 residents is below the 10,000 needed for a density measure to mean anything — one club would move it by 1.1 LQ
Saturation 100 weight 15%	2 km	LQ 0.42	100	2 clubs / 43,664 residents = 4.58 per 100k against 11.01 nationally
Fit — weight 10%	unit	not measured	—	no floor area recorded for this unit
Rental — weight 10%	unit	not measured	—	no rent or no floor area recorded
Income 100 weight 10%	500 m	1.22×	100	27,320 EUR against 22,380 nationally, median of 2 IRIS within 500 m
Income 100 weight 10%	2 km	1.13×	100	25,330 EUR against 22,380 nationally, median of 16 IRIS within 2 km

Each parameter scores 0–100 on a stated line between named breakpoints, then the seven combine on their weights — renormalised over whatever was measurable, so a missing parameter dilutes nothing rather than counting as zero.

Competitive field — every active gym and other sports site within 3 km

Band	Gym floors	Other sports	MCI weight
within 500 m	1	1	1.00
500 m – 1 km	1	2	1.60
1 – 2 km	0	1	0.30
2 – 3 km	0	1	0.30
Within 3 km	2	5	3.2 total

Each site is discounted by how substitutable its activity is for a gym and how far its price tier sits from a mid-market club — so 2 gym floors and 5 other sports sites weigh 3.2, not 7.

Competition since opening — gyms within 1 km, by the year they opened

1 when it opened, 2011-05-15 → 4 today, 3 arrived since

2016+2

2024+1

1 rival(s) within 1 km when this club opened, 4 now. The forecast uses the founding count: it measured better than averaging the field over the club's life (LOOCV 0.091 vs 0.106). 4 nearby site(s) have no usable opening date and are not in either count.

Access — straight-line distance, GTFS

Nearest rail: Poissy — 503 m
Nearest bus: Le Cep — 160 m
Counted footfall: POISSY — 504 m, 5,062,440 validations a year (RATP)

Straight-line, not travel time: no free routing service covers France at this volume, so a stop 300 m away across a railway line reads the same as one 300 m along the street.

Catchment — INSEE 200 m population grid, Filosofi 2021

Ring	Residents	Per km²	Median age	Adults 18–64	Share of residents
0.5 km	8,356	10,639	38.7	5,166	62%
1.0 km	21,060	6,704	37.8	12,960	62%
2.0 km	43,664	3,475	36.4	26,501	61%
3.0 km	65,156	2,304	35.9	39,374	60%

Adults 18–64 is the span members come from. A median age alone does not separate a student quarter from a family suburb, and those are not the same market.

Household income — INSEE Filosofi 2021

Median: €29,020 a year, per consumption unit
Poorest tenth: below €15,200
Richest tenth: above €50,120
Spread: ×3.3 between them · Gini 0.257
Poverty rate: 7.0% of households below 60% of the national median

Published at iris level (IRIS 784980109). An IRIS is a neighbourhood of roughly 2,000 people; a commune can be a whole town. The level travels with the figure, so a town's median is never read as this street's.

What this is. The Location Score is model output, computed from open data; it is not a measured fact and not a valuation. Registry facts — name, SIRET, NAF, address, opening date, officers, filed revenue — come from INSEE Sirene and the Ministère des Sports facility census. Population, age profile and income are INSEE (Filosofi 2021, 200 m grid and IRIS). Competitors are the active, genuinely-operating gym floors in this database. Distances are straight-line, not travel time.
Location Score model 3.1.0, computed 2026-10-17.
Generated 18 October 2026, 05:25 UTC · siret:53267928900019
Sources : INSEE, Sirene (www.insee.fr), données mises à jour le 2026-10-18 · INPI, Registre national des entreprises (stock du 2026-03-04, API au 2026-10-18) · Ministère des Sports, Data ES (2026-10-17) · INSEE, Filosofi 2021 (carreaux 200 m, IRIS) et BPE 2025 · IGN, Contours IRIS 2026 · OpenStreetMap contributors (ODbL). Licence Ouverte / Etalab 2.0 sauf mention contraire.

The site

Within 3 km — gym floors filled, other sports hollow

Strengths & weaknesses — by weighted effect

How the score was reached — seven parameters, five measured separately at 500 m and 2 km

Competitive field — every active gym and other sports site within 3 km

Gym floors, within 500 m — 1

Gym floors, 500 m – 1 km — 1

Other sports sites — 5 within 3 km, discounted by activity

Competition since opening — gyms within 1 km, by the year they opened

Access — straight-line distance, GTFS

Catchment — INSEE 200 m population grid, Filosofi 2021

Age profile — residents within 2 km

Household income — INSEE Filosofi 2021

The establishment — INSEE Sirene

Officers — company representatives on file

Filed accounts — INPI, the keyed annual accounts