Overview
Castlereagh Properties is an estate and letting agent based at 87 York Street, London, W1H 4QB. It is an independent, single-office business on our register. It belongs to The Property Ombudsman redress scheme. On the Find a Local Agent score it ranks 173rd of 179 estate agent offices in Westminster (2026-10-19).
Homes in the W1H postcode district sold for a median £1,055,000 across 50 sales in the last 12 months. Across Westminster the average price is £876,788 (July 2026), -19.6% over ten years and 6.2× its January 1995 level. Since 1995 the median sold price in W1H has moved from £139,000 to £951,387 across 4,784 recorded sales. 62 estate and letting agent offices on the register are based in W1H.
Market position and ranking
173/179 in Westminster on the Agent Score (31/100, provisional: 25% data) · 13 of 13 in W1H · 173 of 179 in Westminster · 1620 of 1,694 in London
No league history on record yet
This branch does not appear in the register’s historical town league tables. Its position will build up from our own daily reading of agents’ websites.
Stock on the market
Stock breakdown coming
Homes for sale by price, bedrooms, property type, time on the market and postcode appear here once our crawler has read castlereagh.co.uk. Agents can speed this up by claiming the profile.
Sales performance
Asking price achieved and time to sell
We match each home an agent lists to its HM Land Registry completion to measure the price achieved against asking and the time from listing to completion. Results appear here once enough of this branch’s listings have completed, usually three to six months after we first read its website.
Reviews
Reviews left on Find a Local Agent
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The blended rating blends verified reviews left here, Google ratings shared by agents who connect their Business Profile, and ESTAS customer-service ratings. Ratings refresh nightly.
Online presence
Profiles are found by reading the links on the agent’s own website. Follower counts and posting activity will be added as they are collected.
The local market
Average prices across Westminster since January 1995, and what has sold in W1H in the last year. Westminster averages £876,788 in July 2026, -17.8% over five years and -19.6% over ten.
Average house price, Westminster
UK House Price Index, monthly
Homes sold each year, Westminster
Completed sales recorded in the House Price Index
Sold prices in W1H since 1995
Median price each year by property type, HM Land Registry
Homes sold each year in W1H
4,784 completed sales since 1995
Sales per month in W1H
HM Land Registry completions, last 12 months
What sold in W1H
Completions by property type, last 12 months
| Median sold price, W1H | £1,055,000 | Sales, last 12 months | 50 |
|---|---|---|---|
| Detached | — | Semi-detached | — |
| Terraced | £2,050,000 | Flat | £892,500 |
Other agents in W1H
| Office | Type and group | Homes for sale |
|---|---|---|
| O’Sullivan Property Consultants | Estate and letting agentIndependent | 51today |
| Kare Estates | Estate and letting agentIndependent | 44today |
| Copperstones Limited | Letting agentIndependent | 30recorded 2022 |
| Diamond Locations & Co Ltd | Estate and letting agentIndependent | 16today |
| Park Estates | Estate and letting agentIndependent | 15today |
| Fortis Advisors | Estate agentIndependent | 9today |
| The Portman Estate | Estate and letting agentIndependent | 6today |
| York Estates | Estate and letting agentIndependent | 6today |
| Cashlong Real Estate Services Ltd | Estate and letting agentIndependent | 1today |
| ADS Property Management Ltd | Letting agentIndependent | 0today |
| Golden Eagle International Ltd | Estate and letting agentIndependent | 0today |
| Home Fullstop Ltd | Estate and letting agentIndependent | 0today |
| London Executive | Estate and letting agentIndependent | 0today |
| Wallacea Living Opco Limited | Estate agentIndependent | 0today |
| ARKIT LTD | Letting agentIndependent | — |
| Alexander Main Ltd | Letting agentIndependent | — |
| Armford Estates Limited | Letting agentIndependent | — |
| Bellyards Home LTD | Letting agentIndependent | — |
| Brandenbergh Management Ltd | Letting agentIndependent | — |
| Bright Life Real Estate Ltd | Letting agentIndependent | — |
All agents in Westminster · Demographics and area data on Property Data
Questions and answers
How many homes does Castlereagh Properties have for sale?
0 when we checked on 2026-10-17.
Which redress scheme is Castlereagh Properties a member of?
The Property Ombudsman.
What do homes sell for near Castlereagh Properties?
A median £1,055,000 in W1H over the last 12 months (HM Land Registry, 50 sales).
Sources and freshness
| Source | Coverage |
|---|---|
| HM Land Registry Price Paid Data, full history (OGL) | W1H, 1995 to 2026, 4,784 sales |
| UK House Price Index, HM Land Registry (OGL) | Westminster, January 1995 to July 2026 |
| HM Land Registry Price Paid Data (OGL) | W1H, last 12 months |
| The Property Ombudsman and Property Redress Scheme registers | Office details, February 2026 |
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