Overview
O’Sullivan Property Consultants is an estate and letting agent based at 96 Seymour Place, London, W1H 1NB. It is an independent, single-office business on our register. The registered business name is O'Sullivan Property Consultants Ltd. Companies House number 05395710. It has been trading since 2005. It belongs to The Property Ombudsman redress scheme. On the Find a Local Agent score it ranks 3rd of 179 estate agent offices in Westminster (2026-10-19).
Today it has 51 homes for sale at a median asking price of £1,150,000. The largest share of its stock is flat property, and homes with 3 bedroomrooms are the most common. Half of its listings have been on the market for 1 days or less.
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
3/179 in Westminster on the Agent Score (93/100, provisional: 25% data) · 1 of 13 in W1H · 3 of 179 in Westminster · 18 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
The homes O’Sullivan Property Consultants is advertising, by price, bedrooms, property type, time on the market and postcode. Source: Homes for sale on osullivanproperty.co.uk, 19 October 2026.
| Homes for sale | 51 | Listed in the last 14 days | 51 |
|---|---|---|---|
| Average asking price | £1,584,851 | Median asking price | £1,150,000 |
| Average time on market | 1 days | Median time on market | 1 days |
| Sold subject to contract or under offer | 0% | Homes to let | — |
Homes for sale by price
Number of homes in each asking-price band
By number of bedrooms
Share of homes for sale
| Homes | Average | Median | |
|---|---|---|---|
| 3 beds | 1 | £1.10m | £1.10m |
By property type
Share of homes for sale
| Homes | Average | Median | |
|---|---|---|---|
| Flat | 2 | £650k | £650k |
Time on the market
How long its current homes for sale have been listed
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 |
|---|---|---|
| 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 |
| Castlereagh Properties | Estate and 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
Company history
- Douglas Nominees Limited appointed corporate nominee director
- Douglas Nominees Limited resigned
- Incorporated as O`Sullivan Property Consultants Ltd (Companies House 05395710)
- Lakhany, Hamza appointed director
- M W Douglas & Company Limited appointed corporate nominee secretary
- M W Douglas & Company Limited resigned
- Ng, Ivan Sze appointed director
- Ng, Ivan Sze appointed secretary
- Ng, Ivan Sze resigned
- Ng, Ivan Sze resigned
Officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| Lakhany, Hamza | director | 2005-03-17 | |
| Douglas Nominees Limited | corporate nominee director | 2005-03-17 | 2005-03-17 |
| M W Douglas & Company Limited | corporate nominee secretary | 2005-03-17 | 2005-03-17 |
| Ng, Ivan Sze | director | 2005-03-17 | 2015-11-20 |
| Ng, Ivan Sze | secretary | 2005-03-17 | 2015-11-20 |
Source: Companies House, company 05395710; Find a Local Agent historical market records.
Questions and answers
How many homes does O’Sullivan Property Consultants have for sale?
51 (Homes for sale on osullivanproperty.co.uk, 19 October 2026).
How long do O’Sullivan Property Consultants's homes take to sell?
The median listing has been on the market 1 days (average 1 days).
How long has O’Sullivan Property Consultants been trading?
Since 2005, about 21 years.
Which redress scheme is O’Sullivan Property Consultants a member of?
The Property Ombudsman.
What do homes sell for near O’Sullivan Property Consultants?
A median £1,055,000 in W1H over the last 12 months (HM Land Registry, 50 sales).
Sources and freshness
| Source | Coverage |
|---|---|
| The agent's own website, read daily by our crawler | 51 homes for sale, 0 to let, checked 19 October 2026 |
| 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 |
| Companies House (free company data product) | 05395710, Active |
| The Property Ombudsman and Property Redress Scheme registers | Office details, February 2026 |
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