What to Check Before Making an Offer on a Property

By the Proplytics Research Team

Finding a property you love is exciting – but before you pick up the phone to make an offer, there is a stack of research worth doing first. The conveyancing process will uncover some issues later on, but by then you may have already spent money on surveys, solicitor fees, and searches. Catching problems early saves you time, money, and heartache.

This guide walks you through the key checks every homebuyer should carry out before committing to an offer. None of them require specialist knowledge – just a bit of time and the right sources.

1. Research the Price History

The asking price is the seller’s opening position – not necessarily what the property is worth. Your first job is to understand what the property has sold for in the past and how that compares to what is being asked now.

Where to look: The HM Land Registry Price Paid dataset is freely available and records the price paid for every residential property transaction in England and Wales. You can search it on the Land Registry’s own site or through portals like Rightmove and Zoopla, which display previous sale prices on individual property listings.

Key things to check:

• What the current owner paid – and when. A property bought for £220,000 in 2019 being listed at £310,000 in 2025 represents a 41% uplift. Is that realistic for the area, or is the seller being optimistic?
• Comparable sales nearby – look at what similar properties on the same street or in the same postcode have sold for recently. This gives you a realistic benchmark.
• Whether the property has been on and off the market – if it was listed six months ago at a higher price, that is useful intelligence for negotiation.

If you want this analysis done for you, our Homebuyer Insight Report includes a full comparable sales breakdown and valuation assessment based on Land Registry data.

2. Check Flood Risk

Flooding can affect your ability to get insurance, your mortgage offer, and – of course – your quality of life. It is one of the most important environmental checks you can do, and it is free.

Where to look: The Environment Agency provides a free flood risk check for any postcode in England at check-long-term-flood-risk.service.gov.uk. This shows risk from rivers and the sea, surface water, and reservoirs. For Wales, Natural Resources Wales provides a similar tool.

Things to watch for:

• Medium or high flood risk from rivers and sea – this will almost certainly affect your insurance premiums and may concern mortgage lenders.
• Surface water flood risk – this is often overlooked but increasingly common, especially in urban areas with poor drainage.
• Historical flooding – ask the estate agent directly whether the property has ever flooded. They are legally required to disclose material information, though some are more forthcoming than others.

Your solicitor’s standard environmental searches will cover flood risk too, but checking it yourself before you offer avoids wasting money on a property in a high-risk zone.

3. Review the Energy Performance Certificate (EPC)

Every property marketed for sale must have a valid EPC. This rates the property’s energy efficiency from A (most efficient) to G (least efficient) and provides an estimate of annual energy costs.

Where to look: Search the EPC register for free at epc.opendatacommunities.org. You will need the property’s address.

What to check:

• The current rating – most homes in England and Wales fall between D and E. Anything rated F or G will be expensive to heat and may face future regulatory requirements.
• The potential rating – this shows what the property could achieve with recommended improvements. A large gap between current and potential suggests relatively easy wins.
• Estimated energy costs – the EPC provides annual cost estimates for heating, hot water, and lighting. Use these to factor running costs into your budget.
• Recommended improvements – the certificate lists upgrades (loft insulation, double glazing, boiler replacement) with estimated cost ranges and potential savings.

A poor EPC rating is not necessarily a deal-breaker – but it should be factored into your offer price, because those improvements will cost you money after completion.

4. Check Nearby Planning Applications

A property might look perfect today, but what about tomorrow? Checking local planning applications can reveal upcoming developments that could affect your enjoyment of the property – or its future value.

Where to look: Every local planning authority publishes planning applications on their website. Search by postcode or map view to see what has been proposed, approved, or is under consideration near the property.

Watch out for:

• Large-scale housing developments – these can affect traffic, views, and the character of an area.
• Commercial or industrial applications – a warehouse or takeaway next door could be unwelcome.
• Infrastructure projects – new roads, railways, or substations can bring noise and disruption.
• Extensions on neighbouring properties – a neighbour’s loft conversion or rear extension could affect your light or privacy.

Also check the local plan – this is the council’s long-term strategy for development in the area. It will show you whether land nearby is earmarked for future building.

5. Understand Your Survey Options

A mortgage valuation is not a survey. It is a brief check carried out for the lender’s benefit, not yours. If you are buying a property – especially an older one – you need your own survey. There are three main types:

• RICS Home Survey Level 1 (Condition Report) – the most basic option. Suitable for newer builds in good condition. Uses a traffic-light system to flag issues but provides no advice on repairs or costs.
• RICS Home Survey Level 2 (HomeBuyer Report) – the most popular choice. Covers the condition of the property, identifies defects, and includes a market valuation. Suitable for conventional properties in reasonable condition.
• RICS Home Survey Level 3 (Building Survey) – the most comprehensive option. Recommended for older properties, listed buildings, properties that have been significantly extended, or anything unusual. Includes detailed analysis of defects and repair advice.

The right survey depends on the property’s age, type, and condition. Spending £400–£700 on a Level 2 or Level 3 survey could save you thousands if it uncovers structural issues, damp, or subsidence.

Tip: Do not instruct a survey until you have an offer accepted – but do research surveyors in the area beforehand so you can move quickly once the offer is agreed.

6. Check the Title and Tenure

You need to know exactly what you are buying. The two main types of property ownership in England and Wales are:

• Freehold – you own the property and the land it sits on. This is the most straightforward form of ownership.
• Leasehold – you own the property for a fixed period (the lease term) but not the land beneath it. This is common for flats and some houses, particularly newer-build estates.

If the property is leasehold, check:

• Remaining lease length – anything below 80 years can make the property harder to mortgage and more expensive to extend. Below 70 years is a serious concern.
• Ground rent – fixed ground rent is manageable, but escalating ground rent clauses (doubling every 10 or 25 years) can make a property effectively unsellable.
• Service charges – ask for the last three years of service charge accounts. Are they reasonable? Are there any planned major works that will trigger large one-off charges?
• Management company reputation – poor management leads to neglected communal areas, disputes, and unexpected bills.

Your solicitor will investigate title in detail during conveyancing, but understanding the basics before you offer helps you avoid properties with fundamental ownership problems.

7. Assess the Location Properly

You have probably already visited the area – but have you visited at different times? A quiet residential street on a Tuesday afternoon might be a rat-run during rush hour or noisy on Friday nights.

Things to check:

• Transport links – how long is the commute to your workplace, realistically? Check journey times on Google Maps during peak hours, not just the distance. If you rely on trains, check the actual timetable and reliability data from National Rail.
• Schools – if you have children or plan to, check Ofsted ratings and catchment areas. Being just outside a catchment boundary for a popular school is a common disappointment.
• Local amenities – supermarkets, GP surgeries, pharmacies, parks, leisure centres. Are the things you use regularly within a reasonable distance?
• Crime data – the police.uk website provides street-level crime data. No area is crime-free, but significant differences exist between neighbouring postcodes.
• Noise and nuisance – visit the property at different times of day. Check for flight paths, busy roads, pubs, or late-night venues nearby.

Our Homebuyer Insight Report includes a detailed area profile covering transport, schools, amenities, and demographic data – saving you hours of research across multiple websites.

8. Consider Current Market Conditions

Understanding the broader property market helps you make a sensible offer – neither overpaying in a cooling market nor lowballing in a competitive one.

Indicators to watch:

• Average days on market – if properties in the area are selling within two weeks, you are in a competitive market and may need to offer close to asking price. If they are sitting for months, you have more negotiating room.
• Stock levels – are there lots of properties for sale in the area, or very few? High stock gives buyers more choice and leverage.
• Mortgage rates – current interest rates affect what buyers can afford. When rates rise, prices often soften because affordability is squeezed.
• Price trends – are prices in the area rising, flat, or falling? Land Registry publishes monthly House Price Index data broken down by local authority.
• Sold-to-asking-price ratios – are properties in the area selling above, at, or below their asking prices? This tells you how competitive the market really is.

None of this means you should try to time the market – you are buying a home, not making a trade. But understanding the conditions helps you pitch your offer sensibly and negotiate with confidence.

Putting It All Together

No single check on this list will tell you whether a property is the right one. But taken together, they give you a much clearer picture of what you are buying – the true value, the risks, the running costs, and the neighbourhood.

Some of this research takes time. If you would rather have it done professionally and presented in a single, clear report, that is exactly what we built Proplytics for.

Get the Full Picture Before You Buy

Our Homebuyer Insight Report does all of this research for you – covering valuation, risk flags, area profile, running costs, and more – for just £99. Order yours today and make your property decision with confidence.