Onyx House
Flats on Horn Lane, W3. Sold prices since January 2023.
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typical sale
16 flats sold in Onyx House since January 2023: 16 in 2025.
per m², typical · £102 per sq ft
m²typical flat size
Jun 2025last sale, £70,746
Price per m² against W3
Flats in Onyx House sell for about 85% less per square metre than the typical W3 flat.
Onyx House
£1,100
All W3 flats
£7,440
Buying a flat here? See how long is left on the leases in Onyx House, free on Lease Length Check.
Prices by flat size
| Size | Sold | Typical price |
|---|---|---|
| 50 to 69 m² | 3 | £71,000 |
| 70 to 99 m² | 12 | £81,000 |
Every sale in Onyx House
16 sales since January 2023, most recent first. Open a flat for its full sale history.
| Flat | Date | Price |
|---|---|---|
| Flat 54 | 27 Jun 2025 | £70,746 |
| Flat 53 | 27 Jun 2025 | £80,644 |
| Flat 47 | 27 Jun 2025 | £81,162 |
| Flat 45 | 27 Jun 2025 | £80,644 |
| Flat 39 | 27 Jun 2025 | £81,162 |
| Flat 37 | 27 Jun 2025 | £80,644 |
| Flat 29 | 27 Jun 2025 | £81,162 |
| Flat 9 | 27 Jun 2025 | £81,162 |
| Flat 8 | 27 Jun 2025 | £70,723 |
| Flat 7 | 27 Jun 2025 | £80,644 |
The W3 report each month.
Everything here is free to see. The monthly W3 report needs a free account: every sale with street, date and price, emailed as soon as it is published. No password, no card.
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Watch Horn Lane
Free with an account. An email when a home on Horn Lane sells, Onyx House included, at most one a month.