CONTENTS - Central Public Works Department

SECTION 4
SECTION 4
PREPARATION OF ESTIMATES
4.1 Preliminary Estimate
(1) Preliminary estimate is to be prepared on the basis of plinth area or length of road etc. worked out
on the rate per unit area/length/number, or such other method adopted for ready and rough
calculation, so as to give an idea of the approximate cost involved in the proposal.
(2) The preliminary estimate shall be prepared on the basis of the preliminary drawings prepared by
the Senior Architect, and shall appropriately indicate in the history sheet the items that are included
or excluded in the estimate. Part estimate that may not result in total completion of the work/
project should be avoided as far as possible.
(3) Provisions as required by the Chief Architect/Sr. Architect for architectural planning jobs shall be
made in the preliminary estimate/enabling estimate as the case may be, to be submitted to the
competent authority for accord of Expenditure Sanction. The provisions so made shall be placed
at the disposal of the concerned Chief Architect/Sr. Architect. Existing financial arrangement will
stand regarding D.D.Os. (Added vide OM/MAN/213)
4.1.1 Preliminary survey, etc
(1) Where any preliminary survey, site/soil investigation, preparation of project reports including
appointment of consultant and/or other essential preliminary steps connected with the schemes,
is needed to be done before the preliminary estimate for the requisitioned work can be finalised, a
separate estimate for such purpose(s) may be prepared, and sent to client department for sanction.
(2) Where, however, such works are required to be carried out after the receipt of administrative
approval and expenditure sanction and at the time of preparation of detailed estimate, necessary
provision for this purpose may be made in the preliminary estimate,
4.1.2 Preliminary data and drawings
(1) Whenever a requisition is received for a work, the same should be passed on to the concerned
Senior Architect for preparation of preliminary drawings. On receipt of the requisition, the Senior
Architect shall obtain the detailed requirements from the concerned Administrative Ministry/
Department or client (in respect of deposit works), in the relevant proforma placed at Appendix-4.
(2) Where required, he shall also obtain the survey plan and site particulars and other site data from
the concerned Executive Engineer in the relevant proforma placed at Appendix-4.
(3) He shall consult the representatives of all the concerned disciplines for incorporating their
requirements in the preliminary plans.
(4) He shall thereafter prepare preliminary plans and brief specifications according to the requirements
for the work, and obtain the approval of the client department for the same. The preliminary
drawings should indicate sufficient details for preparation of preliminary estimate.
(5) He shall then forward these approved plans and brief specifications to the concerned Chief
Engineer/Superintending Engineer/Executive Engineer, Civil and Electrical, for preparation of the
preliminary estimate.
4.1.3 Plinth areas for residential buildings
(1) The plinth area scales indicated in the Appendix 5 should be followed for all construction works in
the General Pool houses as well as houses for other Ministries/Departments where such norms
are applicable.
(2) No deviation from the prescribed scales should normally be made, unless specifically desired by
the client department. In such circumstances specific reference to the deviation should be made
in the history sheet of the estimate.
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