Rehab Costs

[Derek T.]

Okay so I am trying to get better at estimating rehab costs and currently I am trying to come up with a list of how much repairs will costs. From my understanding their are two philosophies when it comes to repair costs: some people estimate a general amount per room or square fee while other people break down everything to determine their rehab costs. I am wondering which philosophy you employ and was wondering if someone can double check my rehab repiar list for accuracy in the DC/MD/VA area. This is what I have so far....

Demo- $1000 (work and dumster)
Roof- $5000
Exterior Paint- $2.00 per square foot
Interior Paint- $1.25 per square foot
Windows- $200 ea
Interior Doors- $200 ea
Exterior Doors- $400 ea
Kitchen- $4000 (includes cabinets, counter top, appliances, sink)
Bathroom- $2500 (complete bathroom)
Flooring- $2.50 per square foot (finished hardwoods)
Drywall- $3.00 per square foot
Tile- $3.00 per square foot (ceramic)
Carept- $2.00 per square foot
Electric Panel Box- $1000
Water Heater- $500
HVAC- $3500
Lawn Care- $500- $1000
Misc- $5000

Does this look abaout right without breaking it down into every item? And would anyone be willing to share their material list for these items in particular cabinets, flooring, etc.

Also another formula I read was to when a house needs to be refinished it should cost about $20 a square foot for a house. So a a 1500 square foot house should take roughly $30,000 then add outside costs (roof, lawn, etc.) and misc. of $5000 and that is a quick rough estimate. Is this formula something you do to get a quick estimate when looking at many houses at a time? Thanks for any input.