{"t":{"slug":"old-windsor","name":"Old Windsor","district_slug":"windsor-and-maidenhead","district":"Windsor and Maidenhead","region":"South East","branches":4,"estate":3,"letting":3},"ranked":[{"branch_id":"grey-tree-estates-ltd-windsor-and-maidenhead","channel":"lets","score":82.0,"coverage":25,"perf":null,"rep":null,"pres":100.0,"trust":55.0,"pres_raw":0.0,"pres_src":"agent website","rank_town":1,"n_town":1,"rank_outcode":1,"n_outcode":1,"rank_district":2,"n_district":3,"rank_region":48,"n_region":127,"rank_brand":1,"n_brand":1,"updated":"2026-10-17","name":"Grey Tree Estates Ltd","id":"grey-tree-estates-ltd-windsor-and-maidenhead","address":"25A Harwood Gardens, Old Windsor, SL4 2LJ","postcode":"SL4 2LJ","outcode":"SL4","kind":"Estate and letting agent","grp":null,"town":"Old Windsor","town_slug":"old-windsor","district":"Windsor and Maidenhead","since":null,"founded":"2021-11-02","sales_count":0,"lettings_count":0,"domain":"greytreeestates.com","reviews":[],"year":2021,"provisional":true,"reason":"Strongest on market presence: 0 homes to let (agent website), trading since 2021."}],"unranked":[{"id":"barratt-sales-lettings-limited-windsor-and-maidenhead","name":"Barratt Sales & Lettings Limited","address":"17 Ashbrook Road, Old Windsor, SL4 2LT","kind":"Letting agent"},{"id":"redwoods-of-old-windsor-windsor-and-maidenhead","name":"Redwoods Of Old Windsor","address":"63 Straight Road, Old Windsor, SL4 2SA","kind":"Estate and letting agent"}],"stock":0,"sold_n":407,"median":500000,"ocs":["SL4"],"rivals":[],"nearby":[{"slug":"maidenhead","name":"Maidenhead"},{"slug":"windsor","name":"Windsor"},{"slug":"ascot","name":"Ascot"},{"slug":"windsor-and-maidenhead","name":"Windsor and Maidenhead"},{"slug":"datchet","name":"Datchet"},{"slug":"sunningdale","name":"Sunningdale"},{"slug":"cookham","name":"Cookham"}],"faq":[["Who is the best letting agent in Old Windsor?","On the UK Agent Register score, Grey Tree Estates Ltd ranks first of 1 letting agent offices in Old Windsor (October 2026). Strongest on market presence: 0 homes to let (agent website), trading since 2021."],["How many letting agents are there in Old Windsor?","4 estate and letting agent offices are on the register in Old Windsor: 3 handle sales and 3 handle lettings."],["What do homes sell for in Old Windsor?","A median £500,000 across 407 sales in its postcode districts (SL4) in the last 12 months (HM Land Registry)."],["How are agents ranked?","Four measures, weighted 40/35/15/10: sales performance, reviews, market presence and trust. Missing measures are left out and the rest rescaled; rankings below 75% data coverage are marked provisional. Full method at /methodology."]],"channel":"lets","month":"October 2026","updated":"2026-10-17"}