External and internal surveys aim to record and accurately represent the visible features of a site or structure.
OBJECTIVE
The purpose of an interior and exterior survey is to accurately record, measure and map all the features of a building and its immediate surroundings, in order to produce precise and usable plans for technical, legal, architectural or land-related purposes.
DETAILED EXPLANATIONS
1. Outdoor survey
An exterior survey (or topographical survey) involves measuring all the external features of a building, such as the building’s footprint, guttering, roof ridge and windows. This survey also includes all features present on the site (trees, fences, hedges, land), providing an accurate representation of the site, its topography and its layout.
It provides an accurate representation of the land, its topography and its features.
Main objectives:
- Determine the topography of the land (elevations, gradients, terrain features)
- Survey property boundaries and cadastral reference points
- Identify existing buildings, roads, visible utility networks, trees, fences, walls, street furniture, etc.
- Prepare the data required for planning, construction or boundary demarcation projects
2. Interior survey
Interior surveying involves measuring the interior of a building, room by room, in order to produce an accurate graphical representation (floor plans, sections, elevations).
Main objectives:
- Obtain existing architectural plans (site survey)
- Record precise dimensions: walls, openings, partitions, ceiling heights, staircases, etc.
- Identify technical elements: internal services, fixtures and fittings, load-bearing structures
- Serve as a basis for renovation, refurbishment, compliance work or 3D modelling.
