Education5 min readJanuary 10, 2026

Understanding Home Appraisals vs. Cash Offers: What's the Difference?

Learn the difference between a bank appraisal and a cash buyer's offer, and why the numbers might be different. Understanding this helps you make better decisions.

Understanding Home Appraisals vs. Cash Offers: What's the Difference?

One of the most common questions we hear is: "Why is your cash offer different from what Zillow says my house is worth?" It's a fair question, and understanding the answer helps you make better decisions about selling your property.

What is a Home Appraisal?

A home appraisal is a professional opinion of a property's market value — what it would sell for on the open market under normal conditions. Appraisals are typically ordered by banks when a buyer is getting a mortgage.

Appraisers consider:

  • Recent comparable sales (comps) in the area
  • The property's size, condition, and features
  • Location and neighborhood factors
  • Current market conditions

Key point: Appraisals assume the property is in marketable condition and that the buyer has time to wait for the right price.

What is a Cash Offer?

A cash offer from an investor like MDC Home Investments is based on different criteria:

After Repair Value (ARV)

We estimate what the property would be worth after full renovation. This is similar to an appraisal of the property in perfect condition.

Repair Costs

We deduct the estimated cost of bringing the property to market-ready condition. This includes everything from cosmetic updates to major system replacements.

Investment Margin

As a business, we need to account for:

  • Renovation costs and project management
  • Carrying costs during renovation (taxes, insurance, utilities)
  • Selling costs when we resell the renovated property
  • A reasonable profit margin for the risk and capital invested

The Formula

Most cash buyers use some version of this formula: Maximum Offer = (ARV × 70%) - Repair Costs

This is known as the 70% Rule and is an industry standard for real estate investors.

Why the Numbers Differ

Let's use an example:

Property: 3BR/2BA, 1,500 sqft, built 1985, needs work

  • Zillow Estimate: $220,000 (based on comparable sales of renovated homes)
  • Appraised Value (as-is): $190,000 (reflects current condition)
  • ARV (after renovation): $250,000
  • Estimated Repairs: $40,000
  • Cash Offer: $250,000 × 70% - $40,000 = $135,000

The cash offer is lower than the Zillow estimate because:

  1. Zillow doesn't account for the property's actual condition
  2. The cash offer factors in real repair costs
  3. The investor needs margin for risk and profit
  4. You're getting speed, certainty, and zero costs in return

When a Cash Offer Makes Sense Despite Being Lower

The cash offer makes financial sense when:

  • You can't afford the $40,000 in repairs
  • You need to sell quickly (foreclosure, relocation, divorce)
  • The property has issues that prevent traditional financing
  • You value certainty over potentially higher but uncertain proceeds
  • The net proceeds after realtor fees and repairs are comparable

Online Estimates Are Not Appraisals

Zillow's Zestimate, Redfin's estimate, and similar tools are automated estimates based on algorithms. They:

  • Don't account for your property's actual condition
  • Can be off by 5-15% or more
  • Don't consider interior features or problems
  • Are not accepted by banks or courts as official valuations

The Bottom Line

A cash offer and an appraisal serve different purposes. An appraisal tells you what your home might sell for in a perfect scenario. A cash offer tells you what you can receive right now, guaranteed, with no strings attached.

Both have their place. The right choice depends on your situation, timeline, and priorities.

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