Seeking a large double room in a shared property

I work in a gas company as a permanent staff for about 4 years now and i am looking for a spacious double room in a shared property with access to the living room if possible. My monthly budget is £800.00 per month all bills inclusive and free parking in Basildon, Laindon, Langdon Hills, Corringham, Stafford-le-hope, Brentwood, Grays, Chafford Hundred and Chadwell St. Mary, Southend, Westcliff-on-Sea, and looking forward to moving in as soon as possible.