ELECTRIC and MECHANICAL DESIGN for single a new house

I need a qualified engineer to do a Mechanical and electric design and calculations for a new single-family house of ground and lower ground floor:
1- Power and Distribution
2- Above Ground Drainage
3- Hot and Cold
4- Heating and Ventilation
5- Lighting Design
6- AV and Controls
7- Fire Alarm
8- SAP Assessments.
9- TM59 Overheating Assessments

The house is a simple normal 4 bedroom house. nothing unusual. Details drawings to be provided upon receiving of proof of experience and qualifications.