9 Observer Drive, Watford, WD18 7GR - 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) / [Watford](/uk/watford) / [Observer Drive](/uk/watford/observer-drive) / [WD18 7GR](/uk/watford/observer-drive/wd18-7gr) / 9 9 Observer Drive, Watford, WD18 7GR =================================== Terraced 1,485 sq ft C EPC C 2 recorded sales [ Cassiobury ](https://percelio.com/uk/neighbourhood/cassiobury) 9 Observer Drive, Watford, WD18 7GR is a Terraced home of about 1,485 sq ft in Watford, based on open property records. About this property This Terraced home measures about 1,485 sq ft (138 sq m), holds an EPC C rating and dates from 2003-2006. Tenure is freehold. It last sold for £495,000 in Feb 2015, about £333 per square foot. The property has 2 recorded sales since 2005. 9 Observer Drive, Watford, WD18 7GR sits on Observer Drive in Watford, part of the Cassiobury 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 Terraced Floor area 1,485 sq ft 138 sq m Energy rating EPC C Built England and Wales: 2003-2006 Habitable rooms 5 Price per sq ft £333 Tenure Freehold Last sold £495,000 Last sold date Feb 2015 Recorded sales 2 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=WD18+7GR&paon=9) [ Buying? Offer advice, £50 ](https://percelio.com/uk/start/offer_advice?postcode=WD18+7GR&paon=9) Sold price history Date Sold price Tenure Type 12 Feb 2015 £495,000 Freehold Existing 16 Dec 2005 £340,000 Freehold New build More on Observer Drive [ Flat 7 Gloucester Court Observer Drive, Watford, WD18 7GF last sold Jul 2020 £230,000 ](/uk/watford/observer-drive/wd18-7gf/flat-7-gloucester-court) [ Flat 2 Gloucester Court Observer Drive, Watford, WD18 7GF last sold Aug 2016 £131,000 ](/uk/watford/observer-drive/wd18-7gf/flat-2-gloucester-court) [ Flat 8 Gloucester Court Observer Drive, Watford, WD18 7GF last sold Jul 2007 £82,500 ](/uk/watford/observer-drive/wd18-7gf/flat-8-gloucester-court) [ Flat 1 Gloucester Court Observer Drive, Watford, WD18 7GF last sold Jul 2025 £220,000 ](/uk/watford/observer-drive/wd18-7gf/flat-1-gloucester-court) [ Flat 3 Gloucester Court Observer Drive, Watford, WD18 7GF last sold Sep 2021 £237,500 ](/uk/watford/observer-drive/wd18-7gf/flat-3-gloucester-court) [ Flat 6 Gloucester Court Observer Drive, Watford, WD18 7GF last sold Mar 2025 £230,000 ](/uk/watford/observer-drive/wd18-7gf/flat-6-gloucester-court) [ Flat 5 Gloucester Court Observer Drive, Watford, WD18 7GF last sold May 2015 £198,000 ](/uk/watford/observer-drive/wd18-7gf/flat-5-gloucester-court) [ Flat 4 Gloucester Court Observer Drive, Watford, WD18 7GF last sold Dec 2020 £245,000 ](/uk/watford/observer-drive/wd18-7gf/flat-4-gloucester-court) [ Flat 3 Knightsbridge Court Observer Drive, Watford, WD18 7GE last sold Aug 2018 £325,000 ](/uk/watford/observer-drive/wd18-7ge/flat-3-knightsbridge-court) [ Flat 16 Knightsbridge Court Observer Drive, Watford, WD18 7GE last sold Jun 2025 £344,000 ](/uk/watford/observer-drive/wd18-7ge/flat-16-knightsbridge-court) [ Flat 2 Knightsbridge Court Observer Drive, Watford, WD18 7GE last sold Jul 2005 £230,000 ](/uk/watford/observer-drive/wd18-7ge/flat-2-knightsbridge-court) [ Flat 17 Knightsbridge Court Observer Drive, Watford, WD18 7GE last sold May 2022 £358,000 ](/uk/watford/observer-drive/wd18-7ge/flat-17-knightsbridge-court) Similar Terraced properties nearby [ 41 Belgrave Avenue, Watford, WD18 7UF last sold Apr 2026 £220,000 ](/uk/watford/belgrave-avenue/wd18-7uf/41) [ 35 Granville Road, Watford, WD18 0AH last sold Apr 2026 £526,000 ](/uk/watford/granville-road/wd18-0ah/35) [ 20 Fearnley Street, Watford, WD18 0RD last sold Mar 2026 £365,000 ](/uk/watford/fearnley-street/wd18-0rd/20) [ 39 Belgrave Avenue, Watford, WD18 7UF last sold Mar 2026 £440,000 ](/uk/watford/belgrave-avenue/wd18-7uf/39) [ 4 May Cottages, Watford, WD18 0AZ last sold Mar 2026 £416,100 ](/uk/watford/may-cottages/wd18-0az/4) [ 139 Chester Road, Watford, WD18 0RE last sold Mar 2026 £375,000 ](/uk/watford/chester-road/wd18-0re/139) [ 54 Holywell Road, Watford, WD18 0HU last sold Mar 2026 £385,000 ](/uk/watford/holywell-road/wd18-0hu/54) [ 81 Liverpool Road, Watford, WD18 0DW last sold Mar 2026 £495,000 ](/uk/watford/liverpool-road/wd18-0dw/81) ### Schools nearby - Watford Grammar School for Boys Secondary - Chessbrook Education Support Centre Not applicable - Chater Infant School Primary - Westfield Academy Secondary - St Anthony's Catholic Primary School Primary - Ascot Road Primary School Primary ### Air quality - Air quality indexFair (25) - NO₂4.8 µg/m³ - PM2.57.8 µg/m³ ### Reported crime - All crimes reported 455 - Violent Crime 157 - Anti Social Behaviour 87 - Other Theft 36 - Vehicle Crime 36 - 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