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If I wanted a backyard guest house, how deep would my pockets need to be?

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pets238
Posts: 17
(@pets238)
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We briefly considered prefab too, but ended up going DIY with a converted shed. Saved a bit on upfront costs, but man, the weekends we lost...not sure I'd do it again. Curious if anyone's tried renovating an existing structure instead—like a garage or shed—to dodge some of those permit headaches? Might be another way to keep costs down.


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Posts: 13
(@hiking257)
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"Curious if anyone's tried renovating an existing structure instead—like a garage or shed—to dodge some of those permit headaches?"

Did exactly that with an old detached garage. A few quick points from experience:
- Permits were simpler since the footprint didn't change, but still had to deal with electrical and plumbing inspections.
- Insulation was tricky—had to retrofit eco-friendly cellulose insulation into walls not originally designed for it.
- Saved money upfront, but hidden costs popped up (foundation repairs, moisture barriers).
Overall, worth it for sustainability and cost savings, but definitely not headache-free...


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Posts: 17
(@writing738)
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Did something similar with a shed-to-office conversion and can confirm the hidden costs are sneaky little monsters. Thought I'd save a bundle, but insulation and waterproofing ate into my budget more than I expected. Also, critters made their homes in the walls before I got insulation up—fun times. Curious if anyone else ran into pest issues during their reno...?


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nickallen642
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(@nickallen642)
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"Also, critters made their homes in the walls before I got insulation up—fun times."

Yeah, been there. When I converted my garage into a guest space, mice decided it was their new Airbnb before I even finished drywalling. Ended up sealing every tiny gap I could find with steel wool and spray foam—worked surprisingly well. Also, peppermint oil-soaked cotton balls seemed to help keep them away temporarily while I was working. Pest-proofing definitely wasn't something I'd budgeted for either, but it's worth the peace of mind. Hang in there, it gets better once you're past this stage...


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pault69
Posts: 14
(@pault69)
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Peppermint oil's hit or miss in my experience—worked briefly, but the mice seemed to adapt pretty fast. Steel wool's definitely the way to go. Had a client once who skipped sealing properly, and squirrels moved right into their guest cottage roof...ended up costing them a small fortune. Did you end up doing anything special with the flooring to keep pests out, or just standard subflooring?


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