Property Deal Analysis: A Step-by-Step Walkthrough

2026-06-28

Property deal analysis — a step-by-step walkthrough

Every property deal follows the same analytical path. The investors who consistently make money have a repeatable process — a checklist they run on every property before deciding whether to pursue it or walk away. They don't get emotionally attached. They let the numbers decide.

This guide walks through that process from start to finish, using a realistic example. By the end, you'll know exactly how to evaluate any property that crosses your screen.

The Process

  1. Initial screen (30 seconds)
  2. Yield check (2 minutes)
  3. Full cost analysis (10 minutes)
  4. Stress testing (5 minutes)
  5. Due diligence (ongoing)
  6. Final decision

Let's work through each step with a real scenario.

The Property

A 3-bed terraced house in a northern city appears on Rightmove:

Step 1: Initial Screen (30 Seconds)

Before doing any maths, answer three questions:

Is it in a sensible area? Check employment, transport links, tenant demand. A property near a hospital, university, or major employer in a city with population growth = yes. A property in a declining village with one bus route = probably not.

Is it the right type? Standard 2-3 bed terraces and semis are the bread and butter of BTL. They're easy to let, easy to maintain, and easy to sell if needed. Avoid properties with unusual features (listed buildings, shared driveways, structural issues visible from the listing photos).

Does the headline yield pass? Quick mental maths: £825 x 12 = £9,900 rent. £9,900 / £165,000 = 6.0% gross yield. That's acceptable. If it was below 5%, walk away without further analysis.

This property passes all three. Move to step 2.

Step 2: Yield Check (2 Minutes)

Now verify the rent is realistic. Don't trust the listing — check comparable evidence:

Comparable rents found: £800-£875 for similar properties in the area. The current £825 is mid-range and realistic. If the tenant leaves, you could re-let at a similar level.

Adjusted gross yield: Using £825/month (conservative mid-point) = 6.0%. Passes.

Step 3: Full Cost Analysis (10 Minutes)

This is where most investors either get lazy or get it wrong. Every single cost must be included.

Acquisition Costs

Item Amount
Purchase price £165,000
SDLT (additional property) £9,500
Legal fees £1,500
Survey (Level 2) £450
Broker fee £400
Total acquisition £176,850

Mortgage

Annual Running Costs

Cost Monthly Annual
Mortgage £516 £6,187
Management (10%) £83 £990
Maintenance (10%) £83 £990
Insurance £25 £300
Void allowance (1 month) £69 £825
Gas/electrical certs — £150
Total costs £776 £9,442

The Numbers

Metric Value
Annual rent £9,900
Annual costs £9,442
Net cashflow £458/year (£38/month)
Gross yield 6.0%
Net yield 3.3%
Cash-on-cash (on £53,100 cash in) 0.86%

:::stats £38/mo | Monthly Cashflow 6.0% | Gross Yield 0.86% | Cash-on-Cash Return :::

That's thin. £38 a month of positive cashflow — one unexpected repair wipes out the entire year's profit. The cash-on-cash of 0.86% means your £53,100 deposit is barely working harder than a savings account.

Step 4: Stress Testing (5 Minutes)

What happens when conditions change?

Rate rise to 6%:

1-month extra void:

Rate rise + extra void:

[!warning] If a deal doesn't survive +1% rate rise, it's not a deal This property is cashflow-positive by just £38/month at current rates. A single rate rise or a bad void period turns it negative. The margins are too thin to absorb any adversity.

:::tool deal-analyser Run Your Own Stress Test :::

Step 5: Can the Deal Be Improved?

Before walking away, check if the numbers can be made to work:

Lower purchase price: At £145,000 (12% below asking):

Higher rent after light refurb: Spend £5,000 on decoration + new kitchen doors. Push rent to £900/month:

Both: Buy at £145,000 AND achieve £900/month:

Step 6: The Decision

At asking price (£165,000) and current rent (£825): Walk away. The margins are too thin and the deal doesn't survive stress testing.

At £145,000 with a £5,000 refurb to achieve £900/month: This works. Offer £145,000, budget for a quick refresh, and the deal produces acceptable returns with survivable margins.

The difference between a deal and not a deal was £20,000 off the purchase price and £75/month higher rent. That's why the analysis matters — it tells you exactly what number makes the deal viable so your offer is based on maths, not emotion.

The Deal Analysis Checklist

Use this for every property:

If a property fails the stress test at +1%, either negotiate the price down until it passes, or walk away. There are always more properties.

Automate the Analysis

Running these numbers manually works, but it's slow and error-prone. The Deal Analyser runs the entire calculation in seconds — yield, cashflow, cash-on-cash, stress testing at multiple rates, and a clear pass/fail signal.

:::tool deal-analyser Analyse Any Deal in 60 Seconds :::

For long-term modelling (what does this property look like in 10 years with rent growth and potential rate changes?), the Cashflow Projection tool extends the analysis over your intended hold period.

:::tool cashflow-projection Project This Deal Over 10 Years :::

Summary

The difference between successful property investors and unsuccessful ones isn't luck or timing. It's the willingness to walk away from deals that don't survive honest analysis.

This walkthrough uses a hypothetical example for illustration. Always conduct your own research and analysis, and seek professional advice before making investment decisions.