XHLUX
Office lighting design starts long before fixture selection.
A usable scheme has to translate the project brief, workspace functions, architecture and visual tasks into a coordinated lighting layout, specification and control plan.
Skip that translation, and the ceiling can look tidy on the drawing while the desks, meeting rooms and quotations tell a different story.
Das office and workspace lighting design guide follows the design process from the first project brief to the final lighting package:
Brief → Concept → Criteria → Layout → Specification → Check
Each step produces one defined output. The next step depends on it.
TL;DR: Treat office lighting as a design sequence, not a fixture shortlist. Write the brief, decide what light should do in each zone, turn that into measurable criteria, fit it to the furniture and ceiling, write performance-based fixture requirements, then check the scheme before procurement. The finished result is an eight-part lighting package that every supplier can quote against.
Inhaltsverzeichnis
- Start with the project brief
- Build the lighting concept
- Translate the concept into design criteria
- Turn the criteria into a lighting layout
- Write the luminaire specification
- Check the design before procurement
- What the final office lighting package should include
- Office lighting design review checklist
- Related office lighting guides
- Häufig gestellte Fragen
📝 1. Start With the Project Brief
This step is not about luminaires yet. It fixes the design inputs.
It is tempting to start with a ceiling grid. That skips the part that decides whether the grid will work.
The brief answers one question:
What must the lighting design achieve, and what constraints must it work within?
Collect the design inputs
Drawings
- floor plan
- reflected ceiling plan
- furniture layout
Space and use
- room functions
- working hours
- ceiling heights
- finishes
- daylight conditions
Project direction
- client design intent
- project standard or certification target
- budget
- renovation or new build
- control requirements
Why each input matters
The furniture layout shows where tasks actually happen. A ceiling plan alone does not.
Working hours tell you how long the lights run and which areas stay occupied late.
Finishes change how much light the room gives back. Dark floors and timber walls absorb more light than white ceilings and pale walls.
Daylight conditions decide which zones sit near glazing and which sit deep in the plan.
A renovation brings existing ceilings, circuits and access limits into the design from day one.
Output: the project lighting brief
| Artikel | Project decision |
|---|---|
| Workspace type | Open office / meeting / reception / support |
| Ceiling | Exposed / suspended / gypsum |
| Main tasks | Screen work / reading / meetings / circulation |
| Daylight | Perimeter glazing / deep plan / rooflights |
| Lighting standard | Project-specific |
| Control requirement | Defined by the brief |
| Build type | New build / renovation |
| Design priority | Comfort / flexibility / efficiency / architectural effect |
Keep it to one or two pages. It becomes the reference every later decision is tested against.
🎯 What should the brief settle before any drawing starts?
Tasks, constraints, the adopted standard and the client’s priority—so every later choice has something to answer to.
💡 2. Build the Lighting Concept
The concept decides how light organises the space. Fixture choices come later.
Think in three layers first.
Allgemeine Beleuchtung
General lighting carries the overall environment and basic visibility. It should feel calm and even, so people can move and work without noticing it.
Task lighting
Task lighting serves specific work areas: desks, reading positions, meeting tables, reception counters.
Accent and vertical lighting
Accent and vertical light works on walls, reception features, architectural elements and visual hierarchy. Lit walls can make a room feel brighter even when desk levels stay the same.
Give each zone a character
Then decide what each part of the office should feel like:
| Zone | What light should do | Layer emphasis |
|---|---|---|
| Open work area | Stay quiet and even | General + task |
| Rezeption | Build a clear visual hierarchy | Accent + vertical |
| Collaboration area | Adapt to different use modes | General + scenes |
| Corridors | Keep continuity and orientation | General + vertical |
| Tagungsräume | Support faces, screens and walls | Task + vertical |
If the brief sets wellbeing or human-centric goals, record them here as concept aims. The human-centric lighting guide in the related guides table explains what those goals involve.
The lighting concept defines what the light should do before deciding which luminaire should do it.
Output: the lighting concept plan
A marked-up plan showing zones, layers and intent. Not a product table.
🎯 Is the concept plan a list of products?
No. It records what light must do in each zone, so later fixture choices have a clear job to match.
📐 3. Translate the Concept Into Design Criteria
Only now does the intended effect become something you can calculate and measure.
Build a criteria matrix for every zone:
| Zone | Main task | Illuminance target | Blendung | Colour quality | Special requirement |
|---|---|---|---|---|---|
| Open work area | Screen / desk work | Set by project standard | Define limit | Define | Uniform task lighting |
| Meeting room | Meetings / video calls | Define | Define limit | Define | Faces + screen |
| Rezeption | Work + presentation | Define | Define limit | Define | Visual hierarchy |
| Korridor | Circulation | Define | Define limit | Define | Orientation |
Office lighting standards provide the applicable performance criteria, while the project brief adds project-specific requirements.
In Europe, EN 12464-1 sets requirements task by task. In North America, ANSI/IES RP-1-24 is the IES recommended practice for office spaces. WELL adds certification requirements when the client targets it.
In the UK, CIBSE LG7 (2023) follows the EN 12464-1:2021 levels and adjusts the base level with context modifiers for the occupants and the use of the space.
Office lighting lux levels go into the illuminance column as maintained values for the task area you define. They are not one figure for the whole floor.
“Maintained” means the value must still be met after light output falls and dirt builds up. The design calculation has to include that loss.
EN 12464-1 office lighting compliance requires each applicable task or activity to be checked against its relevant criteria. Some criteria, such as illuminance and uniformity, are demonstrated through lighting calculations; others, such as colour rendering, are confirmed through the luminaire specification.
The exact numerical criteria depend on the standard adopted by the project. The standards comparison in the related guides table sets out how EN, IES and WELL differ.
🎯 Can one lux figure describe a whole office?
Rarely. Each zone needs its own task, glare and colour criteria taken from the standard the project adopts.
🗺️ 4. Turn the Criteria Into a Lighting Layout
This is where office lighting design actually happens: putting the criteria onto a real plan.
A workspace lighting layout starts from how people use the floor, not from the ceiling grid.
Coordinate with furniture
Look first at:
- desks and workstation clusters
- meeting tables
- partitions
- storage
- circulation routes
Rows of luminaires that ignore desk positions can put the brightest light over aisles and leave task areas short.
Coordinate with viewing direction
Hier ist der Ort ergonomic office lighting design becomes practical.
Check the main sightlines:
- monitors and their reflections
- presentation displays
- video-call positions
Avoid luminaires that sit in the reflection zone of a screen, or directly in a seated person’s forward view.
Coordinate with architecture
Fit the layout around:
- ceiling modules
- beams
- HVAC grilles and diffusers
- sprinklers
- acoustic panels
- walls and glazing
Clashes found on site cost more than clashes found on the drawing.
Build lighting zones
An open office is rarely one block. Split it into:
- perimeter daylight zone
- core workstation zone
- circulation
- collaboration area
- meeting rooms
These zones should inform the later control zoning, although they do not always map one-to-one to control groups.
Check spacing and distribution
Fixture spacing should come from photometric performance and the required distribution, not from a fixed visual grid alone.
A universal spacing ratio ignores mounting height, optic and task area. Use the manufacturer’s photometric files and let the calculation set the spacing.
Where continuous rows carry the ambient layer, LED-Linearleuchten can follow desk runs. Where the ceiling needs discrete points, LED-Einbaustrahler keep the soffit quieter.
Meeting rooms add face, screen and camera considerations beyond the general workspace layout. The conference-room guide in the related guides table covers them.
Output: the lighting layout and control zoning plan
A plan with every luminaire position, mounting height and control group marked.
🎯 Should spacing follow the ceiling grid?
Only if the grid happens to suit the photometry. Distribution and the task area should decide where fixtures go.
🧾 5. Write the Luminaire Specification
With the layout drawn, the question becomes: what exactly does procurement need?
This is not a tour of fixture types. It is how to write a fixture schedule.
For each luminaire type, state at least:
- luminaire type and mounting
- wattage and lumen package
- distribution / beam
- glare requirement
- CRI
- CCT
- SDCM, if colour consistency matters
- Treiber
- dimming / control interface
- emergency option, if the project requires it
- IP rating, if relevant
- finish
- dimensions
- installation details
Specify performance first; product selection comes after the requirement is clear.
A schedule that lists only wattage lets suppliers quote very different products at the same line item.
Unser 5035 recessed linear light lists configurations including On/Off, DALI, Push dimming, Tunable White, Casambi, HCL, Sensor and Emergency. Where a specific control interface or functional option is required, it should be written into the fixture schedule before quotation.
Commercial office LED lighting usually ends up mixing forms: linear rows over desks, downlights in support areas, and LED-Schienenleuchten where reception or feature walls need flexible aiming.
If the fixture families are still open, the fixture-types guide in the related guides table helps narrow them before the schedule is written.
Output: the fixture schedule
One line per luminaire type, carrying every performance field above.
🎯 What makes a fixture schedule fair to quote?
Every line states performance and interface, so suppliers price the same requirement instead of different guesses.
🔎 6. Check the Design Before Procurement
Do not buy luminaires the day the drawing is finished. Check the scheme first.
Photometric calculation
Check that calculated illuminance and uniformity meet the criteria matrix, with the maintenance loss included.
Blendung
Check glare against the project limit for each zone.
Vertical and room brightness
Look at walls and faces as well as desks—especially in meeting rooms, reception and collaboration spaces.
Control zoning
Check that switching and dimming groups follow how each zone is really used.
Energy
Check the connected load and the expected operating hours. If the project needs a savings case, the retrofit savings guide in the related guides table shows the calculation.
Installation
Check that ceilings, cut-outs, track, suspension points and maintenance access can actually be built.
Product match
Check that drivers, dimming, certifications and dimensions match the specification line by line.
Output: the lighting calculation and final specification
A calculation report measured against the criteria matrix, plus the final specification issued for quotation.
🎯 Why check before procurement rather than after?
A mismatch found on the drawing costs a revision, while the same mismatch on site costs fixtures, labour and time.
📦 What Should the Final Office Lighting Package Include?
This is what a complete office lighting design needs to contain: eight coordinated deliverables. They may be issued as separate documents or combined into fewer drawings and schedules, depending on project scale.
| Deliverable | Zweck |
|---|---|
| Project lighting brief | Defines goals and constraints |
| Lighting concept plan | Defines what light should do |
| Zone criteria matrix | Defines measurable requirements |
| Lighting layout | Defines luminaire locations |
| Fixture schedule | Defines luminaire performance |
| Control zoning plan | Defines switching / dimming logic |
| Lighting calculation | Shows the scheme meets the criteria |
| Final specification | Used for quotation and procurement |
If one of these eight information sets is missing, a later decision may be working from an assumption.
🎯 What should the design hand to procurement?
A coordinated package covering these eight items, so procurement and suppliers are working from the same design basis.
✅ Office Lighting Design Review Checklist
Before signing off the scheme, check:
- Is the project brief complete?
- Does every workspace have a defined lighting purpose?
- Are measurable lighting criteria assigned to every zone?
- Does the layout follow the furniture and the ceiling?
- Are fixture requirements written as performance criteria?
- Have controls been zoned around actual use?
- Has the scheme been checked by photometric calculation?
- Are installation constraints resolved?
- Can procurement compare supplier offers against the same specification?
🧭 Related Office Lighting Guides
Use these guides when one step needs more depth:
| For a deeper question | Führung |
|---|---|
| Human-centric goals in the concept | What Is Human-Centric Lighting? |
| Choosing fixture families before the schedule | What Are the Best Lights for an Office? 5 Fixture Types Explained |
| Conference-room brightness and video calls | How Bright Should Conference Room LED Lights Be? |
| EN, IES and WELL criteria | Office Lighting Standards: EN, IES and WELL Explained |
| Retrofit energy savings and payback | How Much Can Office LED Lighting Save? |
| Suspended linear rows in offices | Why Suspended Linear Lighting Differs in Offices and Lobbies |
| Choosing a linear mounting method | Wie wählt man die richtige lineare LED-Beleuchtung: Hänge-, Aufbau- oder Einbauleuchten? |
Häufig gestellte Fragen
🏁 Conclusion: What Makes an Office Lighting Design Complete?
A complete office lighting design moves from brief to concept, from concept to measurable criteria, from criteria to layout and specification, and finally through a design check before procurement.
The quality of the finished scheme depends less on choosing one “best” fixture and more on keeping those decisions connected throughout the project.
Anmerkungen & Quellen
- EN 12464-1:2021, Light and lighting — Lighting of work places — Part 1: Indoor work places (CEN). Requirements are given as maintained values by task or activity.
- ANSI/IES RP-1-24, Recommended Practice: Lighting Office Spaces (Illuminating Engineering Society).
- WELL Building Standard v2, Light concept (International WELL Building Institute) — certification framework, applied when the client targets it.
- CIBSE LG7 Lighting for offices (2023) — levels reflect BS EN 12464-1:2021; context modifiers adjust the base level by occupants and use.
- XHLUX product page, 5035 Commercial Recessed LED Linear Light — listed dimming and control configurations (retrieved 2026-09-29).
Planning an Office Lighting Project?
Send us your floor plan, reflected ceiling plan and fixture schedule. We can match linear, downlight and track options against the performance lines and control interfaces your specification sets.
E-Mail: [email protected]