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Should planned renovation costs reduce my usable home equity?
I’m trying to set a realistic borrowing limit for a renovation, but I’m unsure how to treat the project cost in the equity calculation.
I’m gathering the current estimated property value, remaining mortgage balance, and renovation budget before assuming how much equity is available to borrow. The budget includes several projects, but I do not want to assume their cost will translate directly into a higher appraised value.
I’m also asking the lender whether project costs belong in the borrowing calculation or should be treated separately from the current equity estimate.
Should that renovation budget be subtracted from today’s equity, or should it be treated as a separate borrowing need that affects the loan-to-value calculation? I’m especially unsure because the work may not increase the property’s value dollar-for-dollar.
The work and appraisal may occur at different times. Would lenders generally base available equity on the current appraised value, a projected post-renovation value, or only the value supported after the work is complete?
I’m trying to avoid assuming that spending $1 on improvements creates $1 of additional usable equity. What figures would be most useful for estimating a conservative borrowing limit?
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3 replies
I’d treat the renovation budget as a separate borrowing need rather than subtracting it from the equity you have today. The current equity is based on the existing appraised value minus the mortgage balance, while the renovation loan would increase the total debt used in the loan-to-value calculation.
A lender will often rely on the current appraisal, especially if the work hasn’t started. A projected post-renovation value might be considered for a renovation-specific product, but I’d discount that estimate unless it’s supported by an appraisal, detailed plans, permits where needed, and contractor quotes. Even then, the lender may not credit the full $1-for-$1 cost, since kitchens, bathrooms, and structural work can have very different resale returns.
For a conservative limit, I’d compare:
- current appraised value
- existing mortgage balance
- proposed renovation borrowing
- the lender’s maximum LTV, including any fees or required reserve
That should show whether the project works using today’s value, without depending on an uncertain future uplift.
The LTV comparison should include more than the renovation draw itself. Maplevortex42’s suggested calculation is a useful starting point, but add a contingency allowance plus lender fees, appraisal costs, and the interest that may accrue during the project.
For example, a $50,000 renovation can become a $57,500 or $60,000 borrowing requirement if the budget has a 10–15% contingency and the financing costs are added. That extra debt can matter if the initial calculation is close to the lender’s maximum LTV. I’d test the borrowing limit using the current property value and the higher total project cost, then treat any post-renovation value increase as a possible cushion rather than money available to spend.
The example of a $50,000 renovation becoming $57,500 or $60,000 raises a useful accounting question: should the 10–15% contingency apply only to the contractor’s quoted work, while lender fees, appraisal costs, and project-period interest are modeled separately?
Otherwise, it seems possible to add some costs twice, especially if the contractor quote already includes allowances or built-in contingency. For a conservative LTV test, I’d be inclined to show separate lines for:
- quoted construction cost
- contingency on that construction cost
- financing and appraisal fees
- estimated interest or required reserve
Would lenders typically want all of those included in the requested borrowing amount, or can some be paid from cash reserves without affecting the renovation loan calculation?