Is it an old farm house or have something unique with the architecture? 

I got a quote for $8,000 for an architectural drawing.

For my architecture clients I typically charge $3k to develop an "as-built" 3D model and perform a permitting feasibility study.

But you should understand the range that other builders are in.Out here in AZ for example, as a smaller builder you can build from $250/SF - $450/SF depending on who you hire, the lot conditions, how unique the architecture is, and the finish detail.That's a big range. 

Part of my architecture practice we provide parcel evaluation.

Purchase fully engineered architectural plans complete with material takeoffs from http://CustomHome.ai and take the plans straight for permitting with the local municipality.

It also brings in tourists year-round for the hidden alleyways, gorgeous architecture, and historical views.Other great areas for Charleston real estate investment property include, but are not limited to:Mount Pleasant – Located between downtown and Sullivan’s Island.

I operate a small architecture firm here in Tampa so feel free to reach out after you speak to contractors and have a good idea of the cost. 

I know you mentioned not wanting to be involved in the building aspect but I run a small architecture firm here in Tampa and work with several builders.

Big property (10-15 acres) Southwest (Arizona, Nevada, New Mexico, Utah)10-12 custom built small (300-600sqft) short term rentals of varying unique architectural styles where the homes themselves would be an attraction for renters.