Most lenders require an appraisal, but the type and cost depend on your loan amount and the lender's rules

Whether you need an appraisal for a HELOC depends on how much you want to borrow and which lender you choose. Most lenders do require one, but some offer streamlined options for smaller amounts or if you've had your home appraised recently. The appraisal determines your home's current value, which the lender uses to calculate how much equity you can borrow against. If you're borrowing a small amount — typically under $50,000 — some lenders will skip the full appraisal and use an automated valuation model (AVM) or desktop appraisal instead, which costs less and takes less time.

The cost of a full appraisal ranges from $300 to $700 depending on your home's size, location, and local market conditions. Some lenders charge this fee upfront; others roll it into closing costs. A few lenders waive the appraisal fee if you meet certain conditions, such as maintaining a checking account with them or borrowing above a minimum amount. Before you start the HELOC process, ask your lender directly what type of appraisal they require and whether the fee is negotiable.

Key Takeaways

  • Full appraisals are required by most lenders but may be waived or replaced with a cheaper alternative if you're borrowing under $50,000 or have a recent appraisal on file.
  • An appraisal costs $300 to $700 and is ordered by the lender, not by you — you pay the fee but do not choose the appraiser.
  • The appraisal process takes one to two weeks from order to completion, so plan for that delay in your timeline.
  • If your home value has dropped since your last appraisal, a new one may lower the amount you can borrow, so ask your lender about their valuation method before committing.

Why lenders order appraisals and what they're looking for

A lender orders an appraisal to protect itself, not to protect you. The appraiser inspects your home and compares it to recent sales of similar homes in your area to estimate its current market value. The lender uses that value to decide how much you can borrow: most lenders let you borrow up to 80 or 85 percent of your home's equity, meaning the difference between what your home is worth and what you still owe on your mortgage.

The appraiser looks at the home's condition, square footage, number of bedrooms and bathrooms, roof age, foundation, and any major repairs or upgrades. They also note whether the neighborhood is stable, declining, or appreciating. If your home needs significant repairs or is in a declining area, the appraised value may be lower than you expected, which shrinks the amount you can borrow. This is why some homeowners are surprised to learn they have less borrowing power than they thought.

Types of appraisals and when each one is used

Lenders use three main types of valuation, and which one you get depends on the loan amount and the lender's policy. A full appraisal involves an appraiser visiting your home in person, inspecting it inside and out, and writing a detailed report. This is the most thorough and most expensive option, costing $300 to $700. Most lenders require a full appraisal for HELOCs over $50,000.

A desktop appraisal (also called a desk review) uses public records, recent sales data, and sometimes photos you provide, but the appraiser does not visit your home. This costs $100 to $300 and takes three to five business days. Some lenders offer this for smaller HELOCs or if you've had a full appraisal within the past year or two.

An automated valuation model (AVM) is a computer algorithm that estimates your home's value using public data and recent comparable sales. It takes one to two days and costs $50 to $150, but it is the least accurate of the three. Lenders typically use AVMs only for very small HELOCs, usually under $25,000, or as a preliminary screening tool before ordering a full appraisal.

How to find out what appraisal your lender will require

Before you commit to a lender, call and ask three specific questions: What is the minimum HELOC amount before they require an appraisal? What type of appraisal do they use for your loan amount? And what is the appraisal fee, and when is it due? Write down the answers so you can compare across lenders.

Some lenders publish their appraisal requirements on their website; others do not. If you're working with a bank or credit union where you already have an account, ask whether they offer any fee waivers or discounts. Online lenders and mortgage brokers sometimes have more flexible policies than traditional banks, so it's worth shopping around if the appraisal cost is a concern.

If you've had your home appraised in the past year or two for a refinance or purchase, ask your lender whether they will accept that report instead of ordering a new one. Some will; others require a new appraisal regardless. This can save you $300 to $700 if the previous appraisal is recent enough and covers the full value of your home.

What happens if your home's value is lower than expected

If the appraisal comes back lower than you anticipated, your borrowing power shrinks. For example, if you expected your home to be worth $400,000 but it appraises at $380,000, and your mortgage balance is $250,000, you have $130,000 in equity instead of $150,000. At an 80 percent loan-to-value ratio, you can now borrow $104,000 instead of $120,000.

You have a few options at this point. You can accept the lower appraisal and borrow less. You can ask the lender to reconsider if you believe the appraisal is inaccurate — some lenders will order a second appraisal, though you may have to pay for it. Or you can walk away and shop with a different lender, though most will order their own appraisal and may reach a similar conclusion.

If the appraisal is significantly lower than recent comparable sales in your area, it may be worth challenging. Bring the appraiser a list of recent sales of similar homes that sold for more, and ask the lender to request a reconsideration. This does not always work, but it costs nothing to try.

Timeline: when the appraisal happens and how long it takes

The appraisal is typically ordered after you submit your HELOC application and the lender has reviewed your credit and income. You do not order it yourself; the lender orders it on your behalf and sends you the bill. The timeline varies by appraisal type and by how busy the local appraisers are.

A full appraisal usually takes seven to fourteen business days from order to completion. The appraiser schedules a time to visit your home (usually within three to five days), inspects it, and then spends another few days writing the report. A desktop appraisal takes three to five business days. An AVM takes one to two business days. If you're on a tight timeline, ask your lender upfront which type they use and plan accordingly.

Once the appraisal is complete, the lender reviews it and decides whether to move forward. If everything checks out, you move to the next stage of the HELOC process. If there are issues — such as a significantly lower value or structural problems noted by the appraiser — the lender may ask for more information or may decline the HELOC.

Frequently Asked Questions

Can I shop around for a cheaper appraisal?

No. The lender orders and pays the appraiser, and you reimburse the lender. You cannot choose the appraiser or negotiate the fee directly. However, you can shop around for lenders with lower appraisal fees or policies that waive the fee under certain conditions.

What if I just had my home appraised for a mortgage refinance?

Some lenders will accept a recent appraisal from a refinance or purchase, especially if it's less than six months old and covers the full value of your home. Call your HELOC lender and ask whether they will waive the appraisal if you provide a copy of the previous report. This can save you several hundred dollars.

Do I have to let the appraiser inside my home?

Yes, for a full appraisal. The appraiser needs to inspect the interior and exterior to write an accurate report. You can be present during the inspection, and it usually takes thirty minutes to an hour. For a desktop appraisal, the appraiser does not visit, so you do not need to provide access.

What if I disagree with the appraisal value?

You can request a reconsideration of value (ROV) from the lender, which asks the appraiser to review their work. Bring comparable sales data showing homes similar to yours that sold for more. Some lenders allow one free ROV; others charge a fee. If the appraiser stands by their value, you can request a second appraisal, though you typically pay for it.

Can I get a HELOC without an appraisal?

Some lenders offer no-appraisal HELOCs for small amounts, usually under $25,000, using an AVM or desktop valuation instead. These are faster and cheaper but may limit how much you can borrow. Ask your lender whether a no-appraisal option is available for your situation.