Free Detached House Valuation UK

A free detached-house valuation on Offrly takes about 30 seconds. Detached homes show wider price variation than terraced or semi-detached — plot size, garden, kerb appeal and finish all matter — so the photo-aware comparable analysis tends to add the most value here. Enter postcode, beds, baths and condition; you get a point estimate plus the detached comparables that fed it.

Updated 2026-04-28 · by Offrly

How Offrly's free detached house valuation works

Detached houses tend to show wider price variation than any other property type — plot size, garden, finish, extension potential and kerb appeal all matter, and they're poorly captured by postcode-average tools. Offrly's photo-aware AI reads each comparable's photos the way a seasoned property analyst would: how big is the garden, what's the kerb appeal, how is the home finished, are extensions visible. The model returns a point estimate in about 30 seconds, free, no signup.

What's in the estimate

Where Offrly is most useful for detached homes

Where Offrly is less reliable

When a free valuation is not enough

For anything binding — mortgage, insurance, probate, tax, a legal dispute, lease-extension premium — commission a RICS-qualified surveyor and an independent financial or tax adviser. Use Offrly for fast first-pass market guidance; use a professional to close the loop.

Value a detached house for free

Postcode and a few details. You get a point estimate plus the live detached comparables — no signup.

Value my detached house →

Frequently asked questions

Why are detached houses harder to value than flats?

Detached homes vary much more than flats: plot size, garden, parking, kerb appeal, finish, extension potential. Two detached houses on the same street can be worth substantially different amounts. Offrly's photo-aware AI captures more of that variation than postcode-average tools by reading each comparable's listing photos.

Does Offrly factor in plot size or garden quality?

Garden quality is read from listing photos by the AI, the same way a seasoned property analyst would weigh it. Plot size is captured indirectly via the comparable evidence — homes with similar plots tend to be closest comparables. For a precise plot-size adjustment, a RICS survey is the right tool.

What about land-only or building-plot valuations?

Offrly values existing residential homes, not bare land or building plots. For development land, planning gain, or paddocks, you need a specialist valuer.

Can a free detached-house valuation replace a RICS survey?

No. Offrly's estimate is indicative market guidance based on comparable evidence. For mortgage, insurance, probate or legal-binding purposes, use a RICS-qualified surveyor.

What does the Offrly estimate NOT include?

Specific structural / planning issues (subsidence, restrictive covenants, planning enforcement), boundary disputes, septic-tank or off-grid utilities concerns, and very-rural / unique stock where comparable evidence is thin. Those are buyer-side due diligence.