Cornerstone Onslow Road, Ascot, SL5 0HW - sold prices & valuation | Percelio + + + 52°22′N 4°53′E [ Percelio ](/) [House valuation](https://percelio.com/uk/house-valuation) [Offer advice](https://percelio.com/uk/offer-advice) [House prices](https://percelio.com/uk/house-prices) [Knowledge](https://percelio.com/uk/knowledge) [ Get a valuation ](https://percelio.com/uk/start/valuation) [House valuation](https://percelio.com/uk/house-valuation) [Offer advice](https://percelio.com/uk/offer-advice) [House prices](https://percelio.com/uk/house-prices) [Knowledge](https://percelio.com/uk/knowledge) [ Get a valuation ](https://percelio.com/uk/start/valuation) + + + + [Home](/uk) / [Ascot](/uk/ascot) / [Onslow Road](/uk/ascot/onslow-road) / [SL5 0HW](/uk/ascot/onslow-road/sl5-0hw) / CORNERSTONE Cornerstone Onslow Road, Ascot, SL5 0HW ======================================= Detached 4,424 sq ft C EPC C 1 recorded sale [ South Ascot & Sunningdale ](https://percelio.com/uk/neighbourhood/south-ascot-sunningdale) Cornerstone Onslow Road, Ascot, SL5 0HW is a Detached home of about 4,424 sq ft in Ascot, based on open property records. About this property This Detached home measures about 4,424 sq ft (411 sq m), holds an EPC C rating and dates from 1967-1975. Tenure is freehold. It last sold for £2,100,000 in Nov 2022, about £475 per square foot. Cornerstone Onslow Road, Ascot, SL5 0HW sits on Onslow Road in Ascot, part of the South Ascot & Sunningdale area. This page shows open records only. A valuation estimates what this home is worth today from its sale history, floor area and comparable local sales. Property facts Type Detached Floor area 4,424 sq ft 411 sq m Energy rating EPC C Built England and Wales: 1967-1975 Habitable rooms 11 Price per sq ft £475 Tenure Freehold Last sold £2,100,000 Last sold date Nov 2022 Recorded sales 1 What is this home worth today? ------------------------------ Get a data-backed valuation for this property: an estimated market value with a low-to-high range, the comparable sales behind it, and price per sq ft indexed to today with the UK House Price Index. [ Get a valuation, £29 ](https://percelio.com/uk/start/valuation?postcode=SL5+0HW&paon=CORNERSTONE) [ Buying? Offer advice, £50 ](https://percelio.com/uk/start/offer_advice?postcode=SL5+0HW&paon=CORNERSTONE) Sold price history Date Sold price Tenure Type 1 Nov 2022 £2,100,000 Freehold Existing More on Onslow Road [ Amari House Onslow Road, Ascot, SL5 0HW last sold Apr 1997 £339,950 ](/uk/ascot/onslow-road/sl5-0hw/amari-house) [ Ashley House Onslow Road, Ascot, SL5 0HW last sold Aug 2020 £1,125,000 ](/uk/ascot/onslow-road/sl5-0hw/ashley-house) [ Aysgarth Onslow Road, Ascot, SL5 0HW last sold Aug 2016 £1,200,000 ](/uk/ascot/onslow-road/sl5-0hw/aysgarth) [ Boulters Onslow Road, Ascot, SL5 0HW last sold Sep 2021 £1,400,000 ](/uk/ascot/onslow-road/sl5-0hw/boulters) [ Brambles Onslow Road, Ascot, SL5 0HW last sold Jan 1998 £279,950 ](/uk/ascot/onslow-road/sl5-0hw/brambles) [ Burre House Onslow Road, Ascot, SL5 0HW last sold Mar 2005 £600,000 ](/uk/ascot/onslow-road/sl5-0hw/burre-house) [ Claret Cottage Onslow Road, Ascot, SL5 0HW last sold Apr 2007 £760,000 ](/uk/ascot/onslow-road/sl5-0hw/claret-cottage) [ Delamead Onslow Road, Ascot, SL5 0HW last sold Jun 2021 £1,450,000 ](/uk/ascot/onslow-road/sl5-0hw/delamead) [ Egglestone Onslow Road, Ascot, SL5 0HW last sold Sep 2005 £677,000 ](/uk/ascot/onslow-road/sl5-0hw/egglestone) [ Glenwood Onslow Road, Ascot, SL5 0HW last sold Jun 2005 £545,000 ](/uk/ascot/onslow-road/sl5-0hw/glenwood) [ Gorse Glen, 9 Onslow Road, Ascot, SL5 0HW last sold Dec 2024 £1,135,000 ](/uk/ascot/onslow-road/sl5-0hw/gorse-glen-9) [ Heather View Onslow Road, Ascot, SL5 0HW last sold Aug 2018 £950,000 ](/uk/ascot/onslow-road/sl5-0hw/heather-view) Similar Detached properties nearby [ 4 Greenwood Cottages Lawson Way, Ascot, SL5 0LL last sold Apr 2026 £525,000 ](/uk/ascot/lawson-way/sl5-0ll/4-greenwood-cottages) [ Ashton House Greyfriars Drive, Ascot, SL5 9JD last sold Apr 2026 £3,350,000 ](/uk/ascot/greyfriars-drive/sl5-9jd/ashton-house) [ 12 Murray Court, Ascot, SL5 9BP last sold Mar 2026 £975,000 ](/uk/ascot/murray-court/sl5-9bp/12) [ Clayton House, 27 Llanvair Drive, Ascot, SL5 9HS last sold Mar 2026 £1,950,000 ](/uk/ascot/llanvair-drive/sl5-9hs/clayton-house-27) [ 47 New Road, Ascot, SL5 8QB last sold Mar 2026 £560,000 ](/uk/ascot/new-road/sl5-8qb/47) [ Stanley House Broomfield Park, Ascot, SL5 0JS last sold Mar 2026 £2,950,000 ](/uk/ascot/broomfield-park/sl5-0js/stanley-house) [ 26 Upper Nursery, Ascot, SL5 0NY last sold Mar 2026 £635,000 ](/uk/ascot/upper-nursery/sl5-0ny/26) [ 3 Gatcombe Crescent, Ascot, SL5 7HA last sold Feb 2026 £1,212,500 ](/uk/ascot/gatcombe-crescent/sl5-7ha/3) ### Schools nearby - Holy Trinity CofE Primary School, Sunningdale Primary - Sunningdale School Not applicable - Charters School Secondary - Heathermount School Not applicable - Coworth-Flexlands School Not applicable - The Marist School Not applicable ### Air quality - Air quality indexFair (30) - NO₂9.2 µg/m³ - PM2.58.3 µg/m³ ### Reported crime - All crimes reported 17 - Violent Crime 7 - Anti Social Behaviour 3 - Other Theft 2 - Shoplifting 2 - All categories, within ~1 mile, May 2026 (police.uk). A count, not a risk rating. ### Flood risk - Flood warning area nearby [ Thinking of buying? Get offer advice ](https://percelio.com/uk/start/offer_advice) [Percelio](/)Know what a home is really worth. Instant, data-backed house valuations and offer advice for England, built on open property data. Reports - [House valuation, £40](https://percelio.com/uk/house-valuation) - [Offer advice, £50](https://percelio.com/uk/offer-advice) Built on open data - HM Land Registry Price Paid Data - EPC register floor areas - UK House Price Index © 2026 Percelio. All rights reserved. | A data-driven estimate, not a formal RICS valuation. 51°30′N 0°07′W