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

  • ONLINE CALCULATIONS :- We can also prepare structural calculation from your plans, just send a PDF copy to us at carl@shorplans.com
  • Please include your contact telephone number

We will review your plans and return with a quote within 48hrs. your calculation will usually take 5-7 working days to prepare. More

STRUCTURAL CALCULATIONS From time to time your home extension or loft 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.

All our 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.

Q: 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.

A:  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.