What are the things we need to look out for? Thanks! I have no clue. Do you? Please contribute!

considering the area, access to basic amenities like electricity, water.

Things you need to consider are,nearness to your working place or accessibility to the major roads that link your working place,nearness to your church,mosque,your children's schools,your spouse working place or market.For domestic uses,Tap water,well water,good kitchen,neat compound.Seun i think this are the most important things to consider first.I will write more of it latter ,too busy now.

why would anyone want a flat near to a church or mosque?

Security
Transport links
Shops
electricity

_{how to get a good flat or how to choose a good flat?}

The legitimacy of the property is also important. Eg for land, you need to see the certificate of occupancy,

Getting a good flat depends on the place. Environment matter most and you must search very well for a choice location because scenery attract much to your life. Also you want to contact a good estate agent because they get inside information before the public know about what is coming up. Let me tell about some landed properties that i have to sell that are really at choice area and really cool for those who want to be out of the noisy part of the city. I have 4 flats of 3 bedroom each in one story building that is still uncompleted that you can buy and complete and start enjoying the life of a landlord in a cool city of Illorin In Kwara State.
Apart from helping you to get a good flat, we also take contracts of molding all kinds of building blocks, including[b] interlocking [/b]stones for pavements. I will not forget to let you know that we specialize in fountain making and designs.
We move from place to place in satisfying our customers, though the minimum numbers of blocks that we must be offered before moving is 10,000 units. Other related contract is an added advantage. You can reach us on:
FINSEC NETWORK INTERNATIONAL LTD
Tel: 08062257900 ; 08027400327
Email: bone.4real@yahoo.com

Getting a flat in Nigeria is up to you, it depends on your capacity or budget to get a good flat. For example in Ikeja 3Bedroom is from N350,000 upward while in Agege is from N250,000 upward. at WEBABAORD ESTATE for instance 3Bedroom is from 1.2m per annum. It depends on your budget and ability, there very many to your choice any time you are ready. Tel: 08054353087, 08033255591, 07042677552 email: raphaelkoya@yahoo.co.uk