Planning and building regs cost - double storey rear extension Victorian mid terrace in Vauxhall

[ChelleT]

Hi everyone,
We are hoping to extend our lower ground and ground floor maisonette. The dimensions would be 3x3.5m each floor.

We have got a quote from a designer and structural engineer which is £900 for planning permission drawings and application and £1900 for building regs.
We are in a conservation area. We felt this was a bit steep as we only need 3 RSJs.

Has anyone had experience in this and/or having any other recommendations that would do this for a better price?

We are planning single extension. It was £600 for the drawings from a technician including drawings for building regs and the tech specs. We then paid £400 for the structural engineer calcs and £86 for the legal cert for permitted development. We will still have the fees to pay building control. X

Thanks for the reply ! Are you happy with the work? If so would really appreciate their details ( structural engineer and designer) !

We may be in the wrong area, he is based in Swindon. We would recommend them if you are nearby!

Oh that's alright- we are near Vauxhall in london! Thanks anyway for the input!!