Overview
Winterbrook is an estate and letting agent based at 23 St. Martins Street, Wallingford, OX10 0AL. It is an independent, single-office business on our register. The registered business name is Great Western Estates (Wallingford) Limited. Companies House number 09470923. It has been trading since 1992. It belongs to The Property Ombudsman redress scheme. On the Find a Local Agent score it ranks 6th of 6 estate agent offices in Wallingford and 40th of 45 in South Oxfordshire (2026-10-19).
In 2025 our market records place Winterbrook in 1 local agent league table on 1 occasions. At its best it ranked 11th of 20+ agents in OX10 (September 2025), with 5 homes for sale of 300 in the area (2% share). In the most recent capture (September 2025) it was 11th of 20+ in OX10 with 5 homes, a 2% share.
Homes in the OX10 postcode district sold for a median £468,500 across 324 sales in the last 12 months. Across South Oxfordshire the average price is £476,026 (July 2026), +26.9% over ten years and 6.2× its January 1995 level. Since 1995 the median sold price in OX10 has moved from £83,125 to £447,500 across 14,233 recorded sales. 10 estate and letting agent offices on the register are based in OX10.
Market position and ranking
6/6 in Wallingford on the Agent Score (36/100, provisional: 25% data) · 8 of 8 in OX10 · 40 of 45 in South Oxfordshire · 1281 of 1,460 in South East
How Winterbrook has ranked against every other agent advertising homes in the same towns, from the register’s historical market records between 2025 and 2025.
Homes for sale over time
Homes this branch was advertising, by town league table
Share of local stock
Its homes as a share of all homes for sale in the town
League position
Rank among all agents in the town (1 = most homes)
Ranking by location, latest capture
| Location | Captured | Rank | Homes for sale | Share of local stock |
|---|---|---|---|---|
| OX10 | 2025-09 | 11of 20+ | 5of 300 | 2% |
The OX10 market it trades in
20+ agents advertising 300 homes, average asking price £747,269, 39 new in the previous 14 days. Recorded 2025-09-12.
All homes for sale in OX10
Total advertised by every agent, each capture
Average asking price in OX10
All agents’ homes for sale
| # | Agent | Homes | Share |
|---|---|---|---|
| 2 | InHouse Estate AgentsThe Property Centre, 28 St Martins Street, Wallingford, Oxon, OX10 0AL | 39 | 13% |
| 3 | Thomas MerrifieldHigh Street, Wallingford, OX10 0BX | 26 | 9% |
| 4 | James Gesner Estate Agents72 Broadway, Didcot, Oxfordshire, OX11 8AE | 14 | 5% |
| 5 | Allen & Harris6 St. Marys Street, WALLINGFORD, Oxfordshire, OX10 0EL | 12 | 4% |
| 6 | Savills58-60 Bell Street, Henley-On-Thames, RG9 2BN | 8 | 3% |
| 7 | The Avenue Estate AgentsOffice 5, 10 Burnett Road, Sutton Coldfield, B74 3LP | 8 | 3% |
| 8 | ChancellorsBroadway, Didcot, OX11 8RS | 6 | 2% |
| 9 | Homebase Property Management1, Market Place, Wallingford, OX10 0EG | 6 | 2% |
| 10 | The top 20 OX10 Estate Agents are listed below, along with the number of OX10 Properties For Sale in their respective property portfolios followed by their estimated market share (% of total OX10 property market). Buyers and sellers of OX10 property will probably find that these popular leading estate agents can offer above average market insight and property sales service. 1. JP KnightSt. Martin's Street,, Wallingford,, OX10 0AJ. | 42 | 14% |
| 10 | SavillsBanbury Road, Oxford, OX2 7DE | 5 | 2% |
| 11 | Winterbrook Estate AgentsSt. Martins Street, Wallingford, OX10 0AL | 5 | 2% |
| 12 | Fortnums Estates, OxfordHigh Street, Dorchester-on-Thames, Oxfordhire, OX10 7HN | 4 | 1% |
| 13 | Hamptons InternationalHart Street, Henley-On-Thames, RG9 2AU | 4 | 1% |
| 14 | Ballards Estate Agents30, Hart Street, Henley-On-Thames, RG9 2AU | 3 | 1% |
| 15 | ChancellorsHart Street, Henley-On-Thames, RG9 2AR | 3 | 1% |
| 16 | Fine & CountryBanbury Road,Oxford,Oxfordshire,OX2 7HT | 3 | 1% |
| 17 | HodsonsBroadway, Didcot, OX11 8RS | 3 | 1% |
| 18 | John D Wood235, Banbury Road, Oxford, OX2 7HN | 3 | 1% |
| 19 | ChancellorsHigh Street, Abingdon, OX14 5AX | 2 | 1% |
| 20 | ConnellsHigh Street,, Abingdon,, Oxfordshire, OX14 5BB | 2 | 1% |
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 winterbrookestates.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 South Oxfordshire since January 1995, and what has sold in OX10 in the last year. South Oxfordshire averages £476,026 in July 2026, +11.9% over five years and +26.9% over ten.
Average house price, South Oxfordshire
UK House Price Index, monthly
Homes sold each year, South Oxfordshire
Completed sales recorded in the House Price Index
Sold prices in OX10 since 1995
Median price each year by property type, HM Land Registry
Homes sold each year in OX10
14,233 completed sales since 1995
Sales per month in OX10
HM Land Registry completions, last 12 months
What sold in OX10
Completions by property type, last 12 months
| Median sold price, OX10 | £468,500 | Sales, last 12 months | 324 |
|---|---|---|---|
| Detached | £686,500 | Semi-detached | £415,000 |
| Terraced | £390,000 | Flat | £311,750 |
Other agents in OX10
| Office | Type and group | Homes for sale |
|---|---|---|
| Fortnums Estates | Estate and letting agentIndependent | 49today |
| Thomas Merrifield | Estate agentIndependent | 26recorded 2025 |
| JP Knight Property Agents | Estate and letting agentIndependent | 21today |
| Allen & Harris | Estate agentConnells Group | 12recorded 2025 |
| Cognatum Property | Estate agentIndependent | 8today |
| Homebase Property Management Limited | Estate and letting agentIndependent | 6recorded 2025 |
| In House Estate Agents | Estate and letting agentIndependent | 3today |
| Tom de Winton Property Consultancy | Letting agentIndependent | — |
| Wren & Co Property Services Ltd | Letting agent (self-employed, network)Keller Williams (self-employed network) | — |
All agents in South Oxfordshire · Demographics and area data on Property Data
Company history
- Incorporated as Great Western Estates (Wallingford) Limited (Companies House 09470923)
- Walley, Julian Richard appointed director
- Walley, Debbie appointed director
- Best recorded league position: 11th in OX10
- First appears in our market records (OX10)
Officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| Walley, Julian Richard | director | 2015-03-04 | |
| Walley, Debbie | director | 2015-07-08 |
Source: Companies House, company 09470923; Find a Local Agent historical market records.
Questions and answers
How many homes does Winterbrook have for sale?
0 when we checked on 2026-10-19.
Is Winterbrook a leading agent in OX10?
Our records rank it 11th of 20+ agents in OX10 by homes for sale in September 2025, with 2% of local stock.
How long has Winterbrook been trading?
Since 1992, about 34 years.
Which redress scheme is Winterbrook a member of?
The Property Ombudsman.
What do homes sell for near Winterbrook?
A median £468,500 in OX10 over the last 12 months (HM Land Registry, 324 sales).
Sources and freshness
| Source | Coverage |
|---|---|
| Find a Local Agent historical market records (town league tables) | 1 snapshots, 2025–2025 |
| HM Land Registry Price Paid Data, full history (OGL) | OX10, 1995 to 2026, 14,233 sales |
| UK House Price Index, HM Land Registry (OGL) | South Oxfordshire, January 1995 to July 2026 |
| HM Land Registry Price Paid Data (OGL) | OX10, last 12 months |
| Companies House (free company data product) | 09470923, Active |
| The Property Ombudsman and Property Redress Scheme registers | Office details, February 2026 |
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