SMILERS

Strengths & weaknesses — by weighted effect

▲ Saturation 93 — 2 clubs / 15,854 residents = 12.61 per 100k against 11.01 nationally

▲ Income 100 — 25,400 EUR against 22,380 nationally, containing IRIS (no IRIS centre inside the radius)

▲ Capture 64 — 5,073 residents + 2,320 workers, demand within 2 km against every competitor within 3 km

▼ Catchment 46 — 9,536 aged 18-64 + 5,700 workers = 15,236 over 12.57 km2 = 1,212/km2

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 46 weight 20%	500 m	2,392 people	54	652 aged 18-64 + 1,741 workers = 2,392 over 0.79 km2 = 3,046/km2
Catchment 46 weight 20%	2 km	15,236 people	41	9,536 aged 18-64 + 5,700 workers = 15,236 over 12.57 km2 = 1,212/km2
Competition 68 weight 15%	500 m	1.00 wt	58	1 genuine gym floor and 0 other sports sites within 500 m, weighted by substitutability and price tier
Competition 68 weight 15%	2 km	1.40 wt	76	2 genuine gym floors and 0 other sports sites within 2 km, weighted by substitutability and price tier
Capture 64 weight 20%	500 m	1,592 people	60	607 residents + 985 workers, demand within 500 m against every competitor within 3 km
Capture 64 weight 20%	2 km	7,393 people	66	5,073 residents + 2,320 workers, demand within 2 km against every competitor within 3 km
Saturation 93 weight 15%	500 m	not measured	—	catchment of 1,058 residents is below the 10,000 needed for a density measure to mean anything — one club would move it by 8.6 LQ
Saturation 93 weight 15%	2 km	LQ 1.15	93	2 clubs / 15,854 residents = 12.61 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	1.13×	100	25,400 EUR against 22,380 nationally, containing IRIS (no IRIS centre inside the radius)
Income 100 weight 10%	2 km	1.13×	100	25,400 EUR against 22,380 nationally, median of 3 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	0	1.00
500 m – 1 km	1	0	0.40
1 – 2 km	0	0	—
2 – 3 km	1	4	0.65
Within 3 km	3	4	2.0 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 3 gym floors and 4 other sports sites weigh 2.0, not 7.

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

5 when it opened, 2026-09-01 → 5 today, 0 arrived since

5 rival(s) within 1 km when this club opened, 5 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). 1 nearby site(s) have no usable opening date and are not in either count.

Access — straight-line distance, GTFS

Nearest rail: Mennecy — 1486 m
Nearest bus: Supermarché — 180 m
Counted footfall: MENNECY — 1476 m, 359,479 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	1,058	1,347	30.6	652	62%
1.0 km	5,776	1,839	33.5	3,469	60%
2.0 km	15,854	1,262	35.5	9,536	60%
3.0 km	33,949	1,201	36.7	20,277	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: €26,630 a year, per consumption unit
Poorest tenth: below €14,860
Richest tenth: above €42,910
Spread: ×2.9 between them · Gini 0.239
Poverty rate: 8.0% of households below 60% of the national median

Published at iris level (IRIS 913860103). 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, 13:09 UTC · siret:89197250700026
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

Gym floors, 2 – 3 km — 1

Other sports sites — 4 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