"How many cameras do I need?" is the first question almost every business asks us — and the honest answer is: it depends on what you need to see, not the size of your floor plan alone. A compact office with a busy reception and a stockroom can need more cameras than a larger open-plan space. This guide walks you through how professionals plan camera coverage, so you can have a sensible conversation with your installer — and spot the ones who are guessing.
Start with what you need to see
Before counting cameras, list the areas that matter: every entrance and exit, the reception, corridors and stairwells, server or comms rooms, stockrooms and warehouse aisles, loading bays, parking areas and the building perimeter. For each one, ask what the footage is for — general awareness, identifying faces at a door, or reading number plates. Identification needs more resolution and better positioning than general monitoring, and that affects both camera choice and count.
Rule-of-thumb counts
These are starting points we use on site surveys in Dubai — your layout may need more or fewer:
- Small office (up to ~200 sqm): 4–8 cameras. Typically: main entrance, reception, general office area, server room, back exit and store.
- Medium office (200–800 sqm): 8–16 cameras. Adds: meeting-room corridors, pantry, multiple entrances, parking.
- Warehouse / logistics: 16–32+ cameras. Aisles need overlapping coverage, plus loading bays, dispatch counters and perimeter.
- Retail showroom: 8–16 cameras. Entrances, tills, high-value displays and stockroom.
Treat these as minimums for useful coverage. One camera per room is rarely enough — corridors and corners create blind spots that only overlapping views eliminate.
Placement principles that matter more than the count
- Cover chokepoints: doors, gates and corridors funnel movement — one well-placed camera here is worth three in open space.
- Mount at the right height: 2.5–4 metres for facial identification; higher for wide-area overview.
- Mind the light: avoid pointing cameras at glass doors or direct sunlight. For dark areas, use cameras with strong low-light performance — Hikvision's ColorVu and Dahua's WizColor lines, which we supply, are designed for full-colour images in low light.
- Overlap critical views: if one camera fails or is blocked, the neighbouring view should still cover the area.
Don't forget the recorder and storage
Every camera needs a channel on your NVR (network video recorder) — and NVRs come in fixed sizes: 4, 8, 16 or 32 channels. Always leave headroom: if you need 10 cameras today, a 16-channel NVR saves you replacing the recorder when you expand. Storage is the other hidden cost driver: keeping 30, 60 or 90 days of footage from 16 cameras needs serious hard-drive capacity, and higher resolutions multiply it. Decide your retention target before you buy.
Common mistakes we see
- Buying cameras before planning: boxes of cameras with no layout plan end up as blind spots and duplicated views.
- Ignoring remote access: decide on day one who watches the footage and from where — phone apps, a security room, or both.
- Skipping the compliance check: certain commercial premises in Dubai must meet SIRA requirements for CCTV. A professional installer will confirm what applies to your property type before quoting.
- No maintenance plan: lenses get dusty, hard drives fail, firmware goes stale. Budget for an AMC so the system still works in year three.
Plan for growth, not just today
Camera needs change: you open a new stockroom, extend the warehouse, add a second shift. Leave 20–30% spare NVR channels and run structured cabling that's easy to extend, so adding cameras later doesn't mean replacing the recorder. Every year, walk the premises and ask whether the footage still answers the questions you'd put to it — a quick adjustment is far cheaper than a rebuild.
The fastest way to get the number right is a site survey: an engineer walks your premises, marks camera positions on your floor plan and sizes the NVR and storage accordingly. Book a free site survey — it takes under an hour and the plan is yours to keep.
