Record what you will eventually stop being able to see.
Conduits, pipes, drains, waterproofing, ducts and concealed services become much harder to identify once plaster, flooring or false ceilings cover them.
The useful record is not just a close-up of a pipe. It should show enough of the room, wall or floor that someone can understand where that concealed route sits later.
Principle
Photograph concealed work before each covering layer hides it.
Different covering stages hide different information.
The documentation should follow construction. Photograph the systems while they are visible, before the next layer makes their exact position difficult to recover.
Before plaster
Record wall services
Photograph conduit routes, electrical boxes, water lines, drainage, AC pipes and data cables. Include fixed room references so the route can be located later.
Before flooring
Record floor and below-floor work
Where relevant, capture plumbing routes, floor services, waterproofing, drain positions, underground lines and tank work before screed or flooring hides them.
Before false ceiling
Record overhead services
Photograph electrical routes, AC ducts, drain lines, automation modules, speakers, access zones and junction locations before the ceiling disappears.
Waterproofing
Keep a dedicated record
Photograph bathrooms, balconies, terraces, tanks and below-ground waterproofing before tiling or backfilling. Retain product details, contractor information, warranties and testing records where available.
The record is useful only if it still matches reality and can be found later.
If a plumbing line, socket or service route changes on site, the original drawing can become misleading. Important changes should be reflected in marked-up drawings, revised drawings, written records or photographs.
Changes that affect price, design or performance should also record what changed, why it changed, any additional or reduced cost, and who approved it.
Save enough product information to identify replacements later: paint shade, tile code, laminate code, sanitaryware model, tap range, switch range, window system and hardware where relevant. You do not need a museum of packaging.
A strong concealed-work map can combine the final drawing, photographs and notes for a specific area—for example, the socket location, conduit route, data point and AC drain route behind a bedroom TV wall.
Make the archive retrievable
Could you find and understand this record five years later without remembering the construction personally?
Name files descriptively instead of relying on camera filenames such as IMG_4837.jpg.
Include room or area, service, stage and date where useful.
Use clear drawing names and revisions instead of “final-final2”.
Include fixed references or scale in photographs so concealed routes can be located.
Record important site changes and approvals while the decision is still fresh.
Store the concealed-work record with the final project archive.
Create an X-ray of the house before the finishes hide it.
Five years later, a contextual photograph of concealed services can be far more useful than a photograph of the finished room—especially before drilling, repairing or modifying a wall.
The strongest record connects the photograph to a location, fixed room reference, route description and date, then stores it with the final project information.
Key line
The drawing is only useful if it still matches reality.
Apply the idea
Create a useful hidden-services record.
Arrange the documentation sequence in the correct order.
