We had a great 10 days in a not very fashionable area, but where the locals and their way of life are all on your doorstep and what great fun it is. 300m to a great bakery on Relator, just turn right out of your door and continue straight at the square. Street opposite bakery leads to Mercado Feria, simply a great market for everything an with cafe's and bars surrounding it and within it. Main cafe inside, you buy a ticket for 4€ and select from about 16 dishes like Paella, Pork in Whisky and a variety of fresh fish cooked to order. Wine 1.80€ a glass 10€ per bottle, beer 1€. 200m further on to Hercules a square 200m x 50m full of Tapas bars, restaurants, play areas for children and locals having a lovely time all day and all evening.
Walking to the Historic sights is quite a way but us 70 year old's managed it almost daily. Bus from end of street C1 and C2 most useful, use Moovit app. Bikes free from Sevici after 13€ weeks registration, sites all over city, Seville Sevici app is great.
Apartment is not too easy to locate but is approx half way down street opposite a building that juts out with pavement very narrow, on 3rd floor and very well equipped especially the kitchen. Bathroom and bedroom good and very quiet at night, we took some DVD's as TV all Spanish.
Don't miss Plaza de Espana and allow good amount of time for a great free experience and the Plaza de la Encarnacion allows you to take a lift from the basement to walk on the sculpture(Metropol Parasol) overlooking the entire city, cost 3€. In the NE corner is Cafe La Centuria which serves the most amazing Churros (fresh cooked light as a feather doughnut, you get 6 long strips and 2 hot chocolats for 5€) best around 5pm.
We had a great holiday, thank you Alberto for all your help and excellent communication.