Want the proper evaluation of my property, i wanted to sell

Its 400 sq yards with extra paid land, single storey constructed house in dha phase 1,islamabad. Sector b-1, having 2 entrances, one in sector b and second in sector b-1. It has approved map of 3 stories, 2 gates in sector b and one gate in sector b-1
Total constructed area is 2480 sqft.
Front is 84 feets in sector b and 75 feet in sector b-1.
It has 4 bedrooms, 4 bathrooms, tv lounge, drawing & dinning, also one servant quarter with small bathroom and kitchen.
All solid deodar doors, double glazed aluminum windows and clipsal(australian) electrical fittings