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There is some case law on the concept of areas awaiting conversion or not particularly for cellars. In this regard, a
judgment of 18 May 2004 issued by the Administrative Court of Appeal of Paris ruled. This judgment motivated a
ministerial response as well as a response published in the official bulletin of urban planning law in May 2005. These
responses clearly indicate that the criteria for consistency and allocation of premises must not be confused.
The Net Floor Area must be less or equal to the land area multiplied by the building to plot ratio.
*SHAB (living area) :
The living area of a dwelling is the built floor area, after deduction of surfaces occupied by walls, partitions, stairs
and stairwells, ducts, doorways and windows; the living space is the total living areas thus defined multiplied by
ceiling heights.
Account is not taken of the unconverted area of the attic, cellars, basements, sheds, garages, terraces, loggias,
balconies, outdoor dryers, verandas, glazed volumes provided for in Article R. 111-10, common areas and other
outbuildings, or parts of premises lower than 1.80 m high.
*SDP (Surface de plancher): floor area:
The floor area of the building is defined as:
"[...] the sum of the surfaces of floors for each level closed and covered, calculated from the bare interior walls
minus:
Surfaces corresponding to the thickness of the walls surrounding the doorways and windows overlooking the
outside;
Voids and hoppers relating to stairs and elevators ;
Floor surfaces of a ceiling height less than or equal to 1.80 meter;
Floor areas developed for parking motor vehicles or not, including access ramps and manoeuvring areas ;
Floor surfaces of attics with insufficient headroom for living or for professional, craft, industrial or commercial
activities;
Floor surfaces of technical facilities necessary for the functioning of a group of buildings or a building other than a
house within the meaning of Article L. 231-1 of the Code of Construction and Housing , including waste storage
premises;
Floor surfaces of cellars or storerooms, neighbouring dwellings, when these facilities are served only by a common
part;
Covering an area equal to 10% of floor surfaces used for residential purposes possibly resulting from the application
of the preceding paragraphs, when the dwellings are serviced by internal communal space. "
- Article R. 112-2 of the Town Planning Code, as amended in Decree of 29 December 2011.1
We can see from reading this regulatory definition that some deductions only exist in buildings with multiple
dwelling units or buildings which are not being allocated to housing (technical rooms, basements and cellars with a
ceiling height greater than1.80 m, 10% of the areas served only by common parts).
The accuracy of the terms of the decree should make the calculation of the floor area less objectionable than the old
SHON.
Unlike SHON, the notion of floor area is not used for the calculation of planning taxation. Indeed, the development
fee, which also replaces the local equipment fee, as from March 1, 2012, provides its own calculation of surfaces,
also calculated from the bare interior walls, but with fewer deductions than the SDP.](https://image.slidesharecdn.com/hk67lkut3qixgtjmjafb-signature-ed2a0292c45c1cbbc215a9058fc6dd80f4b0f97d10c0193474520c4e6739f25a-poli-150618121705-lva1-app6891/75/En-tool-1-blank-survey-data-sheet-case-studies-booklet-12-2048.jpg)
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En tool 1 blank survey data sheet case studies booklet
- 1. Return document for «technical case studies » surveys Document to be digitally completed and emailed back to Nicolas LE DUIN Constructys Bretagne nicolas.leduin@constructys.fr
- 2. 1 SUMMARY Identification of thesurvey...............................................................................................................................................2 The project........................................................................................................................................................................2 Project manager, designer and builders.......................................................................................................................2 Phasing of construction ................................................................................................................................................2 Location in the environment.........................................................................................................................................3 Objectives (project manager) - Architectural design (prime contractor).....................................................................3 Building system choice of materials..............................................................................................................................4 Type of foundations......................................................................................................................................................4 Building structure..........................................................................................................................................................4 If only one type of structure select the checkbox, if multiple please indicate the proportion...................................4 Technical implementation ............................................................................................................................................4 Circle the main techniques implemented ....................................................................................................................4 Building system for walls (multiple choice is possible).................................................................................................5 Materials possibly present on site................................................................................................................................5 Main system configurations..............................................................................................................................................6 Types of materials.........................................................................................................................................................6 Progress of the site ...........................................................................................................................................................7 Obstacles encountered and possible levers .....................................................................................................................7 Training of stakeholders ...................................................................................................................................................8 Usage analysis...................................................................................................................................................................8 Cost of construction..........................................................................................................................................................8 Attached paper to the project to recover.......................................................................................................................10 Glossary:..........................................................................................................................................................................10
- 3. 2 IDENTIFICATION OF THESURVEY Name, First name: Organisation: Contact : Owners Insurance company Engineering company Architects, project managers Occupants Training centres Construction company Other, please specify : THE PROJECT NAME OF THE PROJECT : Country County Adress Town GPS coordinates Longitude : Latitude : Features of the site that make it interesting in a few words: Project manager, designer and builders Project manager Prime contractor Companies involved (Studies + construction) Phasing of construction Year of development Year of construction Year of Renovation Type of site Single dwelling Service building Other,please specify :Collective housing Public buildings Check the box
- 4. 3 Location in theenvironment Land area (m²) Building area (m²) Net Floor Area as defined by RT ‘(Thermal Regulation)* Net Floor Area* Surface area* Floor area* Type of environment Plain Vegetation Forest Other please specify: Mountain Town Countryside Check the box Exposure and orientation to the elements Main orientation of living spaces: Are you in a supportive environment (protection, exposure, contributions, etc ...)? If not, please specify YES NO Objectives (project manager) - Architectural design (prime contractor) What were the objectives of the project manager, the contractor, the owner and the developer in this project? Detail objectives by type of construction and / or for each part of the construction (general and detailed) Have energy and/or environmental studies been achieved? Carbon footprint Environmental impact of construction Travel Plan Thermal study Life cycle analysis Thermodynamic simulation Air quality analysis Study of the construction system by calculating the dewpoint Radon Other please specify:Acoustic study Check the box Have social processes been achieved? For public projects, was the use or user taken into account in design Other, please specify : Co-design of shared premises If so, please specify : Shared spaces to encourage "living together" Taking into account trips from home to work Have economic impact studies been conducted for the project?
- 5. 4 Local supply chainsOther, please specify: Building system choice of materials Type of foundations Superficial Deep Semi-deep Other, please specify:: Building structure Light (framework) Heavy (stone, concrete,.) Other, please specify:: % % If only one type of structure select the checkbox, if multiple please indicate the proportion Technical implementation Circle the main techniques implemented Wood Post & Beam Wood & straw structure Solid hardwood bonded panels Solid hardwood nailed panels Platform frame (Wood framework) Solid wood Log or Plank Other, please specify: Hemp Brick filling render, plaster Monomur Brick Shuttered Other, please specify: Geological materials (stone, earth,...) Stone masonry Dry stone Rammed earth Cob Rendering, coating Stone cladding Other, please specify: Straw Dry straw Filling material Load-bearing structure Other, please specify: Wet straw Beam-column Load-bearing structure Other, please specify: Others (recycled, wadding, textile ...) Recycling structures Insulation Other, please specify:
- 6. 5 Comments on thematerials present on the site Building system for walls (multiple choice is possible) Integrated thermal insulation Interior thermal insulation Other, please specify: External thermal insulation Distributed thermal insulation Composition of the complex of the main building system used for each part of the building Roof Partitions Intermediate floors Insulation Floor Wall facing the outside (1) Wall facing the outside (2) Wall facing the outside (3) Other, please specify: Materials possibly present on site Earth as a building material Straw Stone Timber Hemp Other, please specify :
- 7. 6 MAIN SYSTEM CONFIGURATIONS Whattechnique and what material do you want to develop in this project? On which arguments were these choices based? Highlight some technical detail significant by its rarity, the excellence of achievement, etc…? Types of materials To zoom on the particular technique, this table should be filled. Name of material: Raw Processed Local Imported Geographical origin World Europe National Origin Vegetable Animal Mineral Geological Recycled Other,pls specify : Tick the appropriate box (1 per row) Comments on the origin and the processing of materials... Management of energy and water Bioclimatic Management Greenhouse Auvents Other, specify : Windows Tromb wall Inertia management Hourly basis (very easy) Daily basis (easy) Sequential (heavy) Energy systems Nature Power (kWh) Heating
- 8. 7 Hot water Ventilation Renewable energy Mixeedsystem Reduction of water consumption Frothers Other, specify:Optimization of hot water networks Progress of the site Construction period? Was the construction time normal In your opinion? Do you think the planning was successful? Management of relations between the different trades Were there a facilitator ? Scheduling Overseeing and Coordination function Other, pls specify : OBSTACLES ENCOUNTERED AND POSSIBLE LEVERS From the organisation, relationship viewpoints Technically In terms of professional skills In terms of materials, supplies In terms of regulations and insurance Economically Could you please specify? If you were to do it again? Use of rainwater collection systems YES NO
- 9. 8 TRAINING OF STAKEHOLDERS Howdid the different stakeholders on the site acquire the necessary skills to carry out this project? What training or experience did they benefit from? Where did this training or these experiences take place? USAGE ANALYSIS Performance obtained by the initial objectives Gap between theoretical performance and performance observed in situ (or upon invoices) Measures available COST OF CONSTRUCTION Construction cost per building lot Design cost (Fees) Site preparation and connection Ground Structural work Floors Project Management Suspended ceilings External joinery Thermal and Fluids Engineering OfficeFloor covering Sealing Engineering and design office Painting Locksmith Consultants Plumbing - Heating
- 10. 9 Electricity Consultants Interior woodwork RenderingFacilitator Double partitions Roof Rapporteur Framework Total cost of construction Total design cost Total cost Financial grants obtained to carry out works Annual consumptions (kWh or m3 ) Heating Hot water Electriciy
- 11. 10 ATTACHED PAPER TOTHE PROJECT TO RECOVER Diagrams,, building plans Drawings, sketches for points of detail Technical details Photographs of the building or persons External and internal views Views before, during and after the phase of construction / renovation Photographs of interviewed architects, contractors GLOSSARY: * SHONRT (Net floor area in the sense of the Thermal Regulations of a building or part of a building used as a house, single housing and multiple housing) : Total floor area of each level of the building, after deduction of room surfaces without heating equipment SHONRT (for buildings other than dwellings) is the result of multiplying the usable floor area of the building by a factor depending on the use of the building SHONRT = Fact .SURT (usable floor area in the sense of the Thermal Regulations) The multiplying factor depends on the use of the building : -Offices, primary schools: 1,1 - Secondary schools, early childhood centres, Homes for young workers, university housing : 1,2 *SHON (surface hors œuvre nette): Net Floor Area: floor area of the construction, SHON is a measure of floor area for building construction projects. It allowed: - to check that the density of buildings complies with the building to plot ratio applicable to the property. - to form the basis for calculating taxes related to building construction (TLE: taxe locale d’équipement, TDENS: taxe départementale des Espaces Naturels Sensibles, CAUE: Conseil d’architecture, d’Urbanisme et d’Environnement, …) La SHON se calculait en soustrayant à la surface hors œuvre brute (SHOB) les surfaces suivantes1 : The net floor area was calculated by subtracting from the gross floor area (GFA) the following surfaces: Attic and basement space with a ceiling height less than 1.80 m; Surfaces of flat roofs, balconies and unclosed portions located on the ground floor, Areas currently used as technical facilities located in the basement and attic; Areas currently used as a cellar in the basement provided that there is no opening to the outside other than those provided for ventilation; Building areas or part of building areas used for parking vehicles (garage); Building areas used for housing crops, animals or farm equipment; Area equal to 5% of the gross floor area used for housing (standard deduction for insulation of the premises), after applying the above deductions for housing; Specific deduction for residential building retrofit operations within 5 m2 per dwelling unit for work aimed at improving hygiene ; Deduction of a fixed area of 5 m2 per housing complying with the rules relating to inner accessibility for disabled persons, provided for either in Articles R. 111-18-2, R. 111-18-6 or Articles R. 111-18-8 and R. 111-18-9 of the Code of Construction and Housing.
- 12. 11 There is somecase law on the concept of areas awaiting conversion or not particularly for cellars. In this regard, a judgment of 18 May 2004 issued by the Administrative Court of Appeal of Paris ruled. This judgment motivated a ministerial response as well as a response published in the official bulletin of urban planning law in May 2005. These responses clearly indicate that the criteria for consistency and allocation of premises must not be confused. The Net Floor Area must be less or equal to the land area multiplied by the building to plot ratio. *SHAB (living area) : The living area of a dwelling is the built floor area, after deduction of surfaces occupied by walls, partitions, stairs and stairwells, ducts, doorways and windows; the living space is the total living areas thus defined multiplied by ceiling heights. Account is not taken of the unconverted area of the attic, cellars, basements, sheds, garages, terraces, loggias, balconies, outdoor dryers, verandas, glazed volumes provided for in Article R. 111-10, common areas and other outbuildings, or parts of premises lower than 1.80 m high. *SDP (Surface de plancher): floor area: The floor area of the building is defined as: "[...] the sum of the surfaces of floors for each level closed and covered, calculated from the bare interior walls minus: Surfaces corresponding to the thickness of the walls surrounding the doorways and windows overlooking the outside; Voids and hoppers relating to stairs and elevators ; Floor surfaces of a ceiling height less than or equal to 1.80 meter; Floor areas developed for parking motor vehicles or not, including access ramps and manoeuvring areas ; Floor surfaces of attics with insufficient headroom for living or for professional, craft, industrial or commercial activities; Floor surfaces of technical facilities necessary for the functioning of a group of buildings or a building other than a house within the meaning of Article L. 231-1 of the Code of Construction and Housing , including waste storage premises; Floor surfaces of cellars or storerooms, neighbouring dwellings, when these facilities are served only by a common part; Covering an area equal to 10% of floor surfaces used for residential purposes possibly resulting from the application of the preceding paragraphs, when the dwellings are serviced by internal communal space. " - Article R. 112-2 of the Town Planning Code, as amended in Decree of 29 December 2011.1 We can see from reading this regulatory definition that some deductions only exist in buildings with multiple dwelling units or buildings which are not being allocated to housing (technical rooms, basements and cellars with a ceiling height greater than1.80 m, 10% of the areas served only by common parts). The accuracy of the terms of the decree should make the calculation of the floor area less objectionable than the old SHON. Unlike SHON, the notion of floor area is not used for the calculation of planning taxation. Indeed, the development fee, which also replaces the local equipment fee, as from March 1, 2012, provides its own calculation of surfaces, also calculated from the bare interior walls, but with fewer deductions than the SDP.