How to Compare Houses Side by Side When You're House Hunting (Without Losing Track)

Your first viewing is vivid. You remember the light in the kitchen, the sound of the road outside, the odd little step down into the back room. By the fifth viewing, everything has smeared into one composite house that doesn't exist. Was it the Elm Street place with the new boiler, or the one with the damp patch under the stairs? Did the semi with the big garden have parking, or was that the other one?

This is the single most common failure in house hunting, and it isn't a memory problem. It's a capture problem. If you don't record the same information at every viewing, in the same order, you have nothing to compare later. You end up choosing between vibes rather than facts, and vibes are heavily influenced by whichever house you saw most recently.

Here's how to fix it.

Why gut feel breaks down after three houses

Two things work against you. First, recency bias: the last property you saw feels sharper and therefore better, purely because the details are fresh. Second, seller staging is designed to produce exactly the emotional response you're trying to evaluate rationally. Fresh coffee, warm lighting, and cleared surfaces all raise your gut score without changing a single thing about the house you'd actually live in.

The counter to both is boring and effective: a fixed set of questions you answer for every property, written down within ten minutes of walking out the door. Not later that evening. Ten minutes.

The 14 things to record at every viewing

Keep the list short enough that you'll actually complete it, and identical for every house so the columns line up:

• Address and asking price — plus how long it's been listed and whether the price has been reduced.
• Price per square foot — the fastest way to see whether you're being asked to pay a premium.
• Actual usable rooms — a "bedroom" you can't fit a wardrobe in is a study.
• Age and condition of the roof — ask directly; the answer changes your budget by five figures.
• Heating and hot water system — type, age, when it was last serviced.
• Electrical panel and wiring age — a fuse box from the 1970s is a rewire waiting to happen.
• Windows — single or double glazed, any condensation between panes.
• Signs of damp or movement — musty smell, staining at skirting level, cracks wider than a coin.
• Storage — the thing buyers regret most and notice least during a viewing.
• Parking and access — allocated, on-street, permit only, or none.
• Noise at the time you visited — and a note of whether that was a quiet Sunday morning.
• Natural light per room — which direction the main living space faces.
• Commute time door to door — measured, not estimated, and ideally at rush hour.
• Three photos you took yourself — not the agent's. Photograph the boiler, the panel, and anything that worried you.

Add one free-text line: what would I change first, and roughly what would that cost? That single sentence does more work than the rest of the form combined.

Score properties instead of ranking them

Ranking houses against each other is unstable — add a new property and your whole order shifts. Scoring against fixed criteria is stable, and it forces you to admit what you actually care about before a seller's kitchen island talks you into something else.

Pick five or six criteria and weight them out of 100. A realistic example for a couple with a young child:

• Commute — 25
• School catchment — 20
• Condition and work needed — 20
• Outdoor space — 15
• Storage and layout — 12
• Kerb appeal — 8

Now score each house 1–10 on every criterion and multiply by the weight. A charming property that scores 9 on kerb appeal and 3 on commute will lose to a plainer house that scores the other way round — which is almost always the correct outcome, because you'll do that commute a thousand times and admire the front elevation approximately never.

The weights matter more than the scores. Set them before your first viewing, and resist the urge to quietly adjust them afterwards to justify a house you've fallen for.

The running-cost column nobody fills in

Asking price is one number. What the house costs you every month is a different number, and two properties at the same price can differ by hundreds a month once you account for:

• Property taxes or council tax band
• HOA, service charge, or ground rent — and whether it's due to rise
• Insurance — flood zone, subsidence history, and roof age all move the premium
• Heating cost — a large, poorly insulated house can double this
• Commute cost — fuel, parking, transit passes, and the second car you might need
• Known repairs in the first two years — roof, boiler, rewire, windows

Add these into a total monthly cost of ownership and compare that across your shortlist. It's common for the cheaper listing to be the more expensive house.

A viewing routine that takes fifteen minutes

Before: check the listing history, note the asking price and days on market, and set your route so you arrive from the direction you'd normally commute.

During: walk the whole property once without notes, then a second time filling in your form. Open cupboards. Run a tap. Look at the ceiling in every room. Ask the agent three fixed questions: why is the seller moving, how long have they owned it, and what work has been done in the last ten years.

After: sit in the car for ten minutes and finish the form while it's fresh. Give it your gut score out of 10 as well — it's useful data, as long as it sits beside the facts rather than replacing them.

Notes app, spreadsheet, or something purpose-built

A notes app captures everything and compares nothing — you can't line up eight properties on price per square foot in a wall of paragraphs. A spreadsheet compares well but only if you build it first, and most people build it badly at 11pm the night before their first viewing, then abandon it by house four because entering data on a phone in a spreadsheet is miserable.

The middle path is a purpose-built tracker: fixed fields so every property gets recorded the same way, automatic scoring so the comparison happens for you, and a layout that works on a tablet while you're standing in someone's hallway.

That's exactly what our Home Buying Tracker dashboard does. It's a single HTML file that runs offline on a PC or tablet — no account, no subscription, no cloud service holding your data. You log each property, score it against your own weighted criteria, track viewings and follow-ups, and see your shortlist ranked side by side.

The short version

Decide what matters before you start looking. Record the same fourteen data points at every single viewing, within ten minutes of leaving. Score against fixed weights rather than ranking against each other. Compare total monthly cost, not asking price. Do that, and by house eight you'll have a clear, defensible shortlist instead of a headache and a camera roll of identical kitchens.

Once you've chosen, the next problem arrives fast — see our guide to planning a move in eight weeks. And if you're considering building instead of buying, start with tracking a home build budget.

Get the Home Buying Tracker — $25.00, instant download, works offline