If you are looking at this home and asking about writing an offer I have to presume that you HAVE a Realtor So I will provide some general information for people who are reading your questions and wonder about the questions
People, If you are not confident that you have the right Realtor, the one that gives you enough information to be answering these questions and sorting out the options withyou, you should probably use different Realtor. If you havent written the offer yet and you havent signed a buyers agency agreement, you can use whomever you like for your purchase. There could be some issues with procuring cause because someone has already shown you a property but you wont want to go through the stress of an escrow with someone you dont feel confident in already and if they are busy successful Realtors who havent connected with you, they will probably be willing to let you move on to working with another Realtor because they really dont want to be in escrow with you for 30-45 days. Not that they should want to be bothered with answering 101 questions, they absolutely should but just that it is not productive to work without a certain level of trust and confidence, both ways.
In general, it doesnt make sense for Realtors to bring a lot of data with them to each home you look at because many buyers walk in and immediately know if they are going to rule a home out. However, if you are interested, If you ask your Realtor or if they know your level of interest, they should have given you this information about the prior sale and comperable sales data. They would be able to give you other data to help you work on the comparison with your trusted professional, the one you hired and you are paying to help you make your dream of your next home come true. They would also be able to advise you that most of the time buyers retain the appraisal contingency in the contract so when you ask "will it appraise" you would be comforted by the fact that if it didnt appraise, you would not be obligated to purchase, and if you had concerns about the home appraising, you could structure the purchase to do the appraisal first and then spend money for the inspections. You could even structure the offer to have agreements about what will occur if the home doesnt appraise, for example that the seller will reimburse you for the cost of the appraisal if they are unwilling to sell for the appraised value.
You can procure bids for things like brick walls during your contingency period but I would also recommend looking into vinyl fencing.
Lastly, in response to another homeowners comments, Zillow, which is another forum I like and participate in in many ways, is not a comprehensive price evaluator. Zillow uses an algorithm based on a radius. It is not specific to tracts, condition or features so using a Zestimate to determine a property value is a very casual way to get a round about value but it can steer you wrong, in either direction.
Good luck with your home buyer process and make sure you will love living whereever you go. It's important to get a good value. A value is different from a deal. A deal is a really good price for a property, even if it's located on a major street and has other issue. A value is something that looks at all the components of value for you like location that suits you, condition that suits you, lifestyle that suits you, a place to call home for you and yours all at a price that felt fair and equitable. Find a great value in your home purchase. I can pretty much bet that if you are asking yourself these questions you arent looking at a property and home that represent a good value for you.