HB FORME

Strengths & weaknesses — by weighted effect

▲ Saturation 100 — 1 club / 13,190 residents = 7.58 per 100k against 11.01 nationally

▲ Competition 87 — 0 genuine gym floors and 0 other sports sites within 500 m, weighted by substitutability and price tier

▲ Capture 50 — 607 residents + 147 workers, demand within 500 m against every competitor within 3 km

▼ Catchment 30 — 395 aged 18-64 + 160 workers = 555 over 0.79 km2 = 707/km2

▼ Income 11 — 18,195 EUR against 22,380 nationally, median of 4 IRIS within 2 km

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 30 weight 20%	500 m	555 people	24	395 aged 18-64 + 160 workers = 555 over 0.79 km2 = 707/km2
Catchment 30 weight 20%	2 km	10,849 people	35	7,076 aged 18-64 + 3,772 workers = 10,849 over 12.57 km2 = 863/km2
Competition 87 weight 15%	500 m	0.00 wt	100	0 genuine gym floors and 0 other sports sites within 500 m, weighted by substitutability and price tier
Competition 87 weight 15%	2 km	1.20 wt	78	1 genuine gym floor and 1 other sports site within 2 km, weighted by substitutability and price tier
Capture 50 weight 20%	500 m	753 people	38	607 residents + 147 workers, demand within 500 m against every competitor within 3 km
Capture 50 weight 20%	2 km	6,150 people	59	5,047 residents + 1,103 workers, demand within 2 km against every competitor within 3 km
Saturation 100 weight 15%	500 m	not measured	—	catchment of 838 residents is below the 10,000 needed for a density measure to mean anything — one club would move it by 10.8 LQ
Saturation 100 weight 15%	2 km	LQ 0.69	100	1 club / 13,190 residents = 7.58 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 11 weight 10%	500 m	0.86×	21	19,330 EUR against 22,380 nationally, containing IRIS (no IRIS centre inside the radius)
Income 11 weight 10%	2 km	0.81×	4	18,195 EUR against 22,380 nationally, median of 4 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	0	0	—
500 m – 1 km	1	0	1.00
1 – 2 km	0	1	0.10
2 – 3 km	1	0	0.40
Within 3 km	2	1	1.5 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 1 other sports sites weigh 1.5, not 3.

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

2 when it opened, 2026-08-25 → 2 today, 0 arrived since

2 rival(s) within 1 km when this club opened, 2 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). 2 nearby site(s) have no usable opening date and are not in either count.

Access — straight-line distance, GTFS

Nearest rail: Romilly-sur-Seine — 1215 m
Nearest bus: Romilly-sur-Seine Atelier SNCF — 1151 m
Counted footfall: Romilly-sur-Seine — 1215 m, 470,006 travellers a year (SNCF)

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	838	1,067	54.3	395	47%
1.0 km	4,056	1,291	45.8	2,070	51%
2.0 km	13,190	1,050	42.5	7,076	54%
3.0 km	15,026	531	42.8	8,019	53%

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: €19,330 a year, per consumption unit
Poorest tenth: below €10,850
Richest tenth: above €30,450
Spread: ×2.8 between them · Gini 0.233
Poverty rate: 23.0% of households below 60% of the national median

Published at iris level (IRIS 103230202). 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 19 October 2026, 03:00 UTC · siret:10924040800012
Sources : INSEE, Sirene (www.insee.fr), données mises à jour le 2026-10-19 · INPI, Registre national des entreprises (stock du 2026-03-04, API au 2026-10-18) · DILA, BODACC (annonces commerciales, 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, 500 m – 1 km — 1

Gym floors, 2 – 3 km — 1

Other sports sites — 1 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