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Bookmark and Share              #1 We Prepare Structural Calculations:

We provide fast efficient planning, design and structural calculation services for your loft conversion or extension for a clear and low cost structural design service contact us.

all calculations are prepared with drawings and when combined with our planning and building regulations application service will include 3d visuals similar to the ones on this page.

No more complication as to the placements of your structural members. our calculation are presented in a clear and easy to read format with diagrams and workings for presentation to building control as a part of your building regulations application.

How much will it cost ?

Pricing example for a Standard terrace Loft conversion without Dormer with plans provided by client.   

Calculations provided for all steel, joists, posts and rafters for only 295

Calculations Only 
calculations .Online calculations here we can prepare your structural calculation from your plans, just send a PDF copy to us at calculations@sharpeplan.co.uk we will review your plans and return with a quote. you calculation usually will take two working days to prepare.

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Calculations & building regulations
Add on services In addition to our calculation services you may require our building regulation specification and submission services. We may provide this as an add-on for an additional 250  find out more
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Payments can be made online

send us your drawings and we will prepare the calculations .Online calculations here:- we can prepare your structural calculation from your plans, just send a PDF copy to us at calculations@sharpeplan.co.uk we will review your plans and return with a quote. you calculation usually will take two working days to prepare. More

Structural calculations From time to time your home extension/conversion may require structural calculations to realize your design. Any structural alteration made to residential or commercial buildings, whether its a small extension or removal of an internal load bearing wall, needs Building Control approval. Structural calculations should be carried out to demonstrate compliance to the Local Authority and to advise builders. Guidance Note in respect of Structural Calculations (pdf)


  • Steel Beams

  • Columns

  • Posts

  • Timber Joist/beams

  • Foundations

  • Pad stones

  • Wall plates






Recent Enquire

Your question I have submitted my building notice application for a loft conversion with plans, they have now requested that we provide them with structural calculations. can you help.

Our answer If you are making a Building Regulation application, then issues like this will be picked up by the local authority when you submit your application. Invariably they will want structural calculations to justify what you intend doing, for this reason we provide structural calculations with our full Building regulation applications. In this situation you may send us your drawings to prepare your steel calculations.

Domestic Construction, when are Structural Calculations required?

Structural Calculations are required to meet Building Control Approval Engineers satisfaction, and for the Builder/Contractor to work from in making sure that any construction they undertake is built structurally sound.

You will most certainly require them for a Loft Conversion, and even a small extension.

The Structural Calculations are incorporated into the final design drawings that will be submitted to Building Control prior to construction commencing.

Starting your building project:-
The building control of the local borough must be notified for inspection of a building project even though there are no needs for a planning permission. A Certificate of completion should be obtained, when the project is completed, from the borough which would be vital for insurance cover, selling the property and for any other legal requirements

How to avoid problems in a building project:-
It is very important and 'a must' to get the details of a project right on paper, detail drawing, before attempting to start a development. These processes (plan, building regulation, specification and calculation) must be done, even if you do not require planning permission. Any ambiguity can cause a big problem between you and the builder or between you and the council and any problem can make you redoing the work. Problems can delay a development and can accumulate the cost of a project enormously. These are common complications that we come across quite often. Our job is to take care of you, to make you get the best design out of your project and to protect you against remedial works, unnecessary costs.
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