Construction Calculator You can use our calculator to estimate the cost to construct your project. What kind of project would you like?* Interior Works?Extension?Interior + Extension? What kind of building is this?* DetachedSemi-DetachedTerracedBungalowFlat Services: New Boiler?New Electrics?Underfloor heating? What are you planning to do internally? What areas do you need your project to cover? Use the boxes to tick which areas you'd like Loft Conversion How much additional space do you need? —Please choose an option—Hip to gableHip to gable with dormerRear dormerSide DormerVelux Conversion Loft Space Some extra information Fixtures & Fittings Kitchen?Washroom?Utility?Bath/Shower Room? Additional Services: New Boiler?New Electrics?Underfloor heating? Any additional information? What facilities will be in this extension? Kitchen?Toilet?Utility?Bath/Shower Room? Additional Services: New Boiler?New Electrics?Underfloor heating? Some information What are you planning to do internally? Would you like to be contacted by STAAC Architectural for any of the following services? STAAC will get in touch with you to discuss your project in further detail. I'd like Architectural Drawings (planning permission)I'd like Structural Calculations (building control/regulations) Please provide us with some contact details We'll use these to contact you in the near future to discuss a more accurate quotation. First Name* Last Name* Email Address* Phone* Address*