Online house valuation or survey: what do you need?

An online house valuation, lender valuation and survey answer different questions. open for offer lets you test the market before you list. Use an approximate market estimate to begin your initial research, then choose professional advice for the decision ahead.

If you are deciding whether to move, an indicative figure can start a conversation. If you are borrowing, investigating defects or seeking a formal valuation for a specific purpose, you need information suited to that job.

The photograph shows a sitting room at Butterfield House in Brackenfield.

Which figure answers your question?

State the decision in a sentence. “Could moving be affordable?” is different from “Will this lender accept the property?” or “What repairs should I expect?” The right service depends on the question, rather than which headline number looks best.

Information	Typical purpose	Important limit
Online market estimate	A starting point for researching possible value	Does not inspect the building
Owner's asking price	The price at which the owner is seeking a sale	Does not show an agreed sale price
Lender's valuation	Assessing the property for the lender's security	Does not replace a condition survey
Home survey	Understanding condition within the agreed scope	Different survey services provide different detail
Purpose-specific professional valuation	A defined need agreed with the valuer	Its scope and assumptions must fit that need

What can an online house valuation tell you?

An online house valuation can provide an initial indication before speaking to anyone. On open for offer, this is a market estimate. Treat it as a prompt for further investigation, rather than a promise of the price you will achieve.

An online figure does not inspect a roof, confirm a boundary or establish the quality of an extension. Give the particular property's condition, accommodation and documentation their own attention. Two homes on the same street may present very different decisions.

Read what a service explains about its figure and limitations. Avoid assuming that every online tool uses the same inputs or method. If the result feels surprising, investigate why instead of selecting whichever number most closely matches your preference.

You can start with an open for offer market estimate. Keep the result alongside your questions about the house and your moving budget, and review it as you obtain better evidence.

How is an asking price different?

An asking price expresses what the owner is seeking. It can inform a negotiation, but it is not proof of what a buyer will agree or a lender will support. Keep it separate from your budget and any professional report.

HM Land Registry sold-price information describes completed transactions. It is useful context for understanding what has sold, rather than a live list of asking prices. Read dates and the property details before drawing a comparison.

A local average also combines different properties. The ONS small-area price methodology explains why the mix of homes sold matters to unadjusted price statistics. A change in the mix does not price your particular house.

Make your evidence notes specific: type, size, condition, date and what was included. If those details are unknown, mark the comparison as uncertain. A large collection of loosely related examples can look authoritative while answering very little.

What does a mortgage valuation do?

A mortgage valuation is for the lender's assessment of the property as security. Government home-buying guidance distinguishes it from a survey and explains that a valuation may not involve a physical inspection.

If the lender's figure differs from the agreed price, speak to your lender or mortgage adviser about the consequences for your borrowing. Do not assume the difference can be resolved by showing another online estimate.

Keep condition questions separate. A lender accepting a property does not mean you have received a report identifying defects, repair priorities or future maintenance. Decide what condition information you need before committing to the purchase.

When should you arrange a survey?

When buying, discuss the property with a suitably qualified surveyor. The RICS consumer guide explains the survey levels and the distinction between a survey and the lender's valuation.

MoneyHelper's buying-cost guidance describes the different survey options. Age, condition and construction matter when choosing the scope. Some services include a valuation; confirm what your particular commission provides rather than assuming every survey includes one.

Ask what the surveyor will inspect, what will be excluded and how findings will be explained. If there are inaccessible areas or specialist concerns, discuss the limits and possible follow-up before you rely on the report.

Read the recommendations and turn material findings into actions. You may need specialist advice, repair quotations or legal enquiries. The report becomes useful when it changes a decision or resolves a question, rather than simply joining the paperwork.

What if you need a formal valuation?

Tell the professional why you need the figure before commissioning it. A valuation requested for a particular legal, financial or administrative purpose may need a defined scope and an appropriately qualified valuer. Check the recipient's requirements first.

Ask for the purpose, inspection arrangements, assumptions, report format and fee in writing. An estimate displayed online is not automatically suitable for a lender, solicitor or other organisation simply because it uses the word “valuation”.

What should you do next?

Choose one question to resolve first. Owners can begin with an estimate and a realistic moving budget. Buyers should arrange finance, legal advice and appropriate condition checks. Return to the asking price when the evidence changes.

open for offer is the pre-market, the market that exists before a property is ever advertised. Find a property and register interest, or begin your own property research with a market estimate.

Reviewed 2 November 2026. The linked buying guidance concerns England and Wales. This explanation does not assess an individual property's value, condition or suitability for a particular financial or legal purpose.