18, Observatory Road, SW14 7QD
18 Observatory Road is a 114 m² / 1,227 sq ft terraced home in Mortlake. It sold for £1,175,000 in March 2017. Indexed forward to today's value, that sale is roughly £1,224k. Recent local prices imply a broad valuation context of £829k to £1,174k based on its internal area. The Land Registry and EPC data was last updated 4 August 2026.
- Sale history
-
£1,175,000 on Mar 2017
- Floor plan
-
Archived estate agent floor plan for 18, Observatory Road.
- Internal area
- 114 square metres (1,227 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £10,307 per square metre (£958 per square foot) in Mar 2017. Indexed forward to today's value, this is roughly £10,734 per square metre (£997 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Mar 2017 £1,175,000 £10,307 £1,223,662 £10,734 Calculated using the latest EPC internal area of 114 m². Earlier sale dates may not have had the same measured area available.
- Valuation
- The most recent sale price indexed forward to today's value is £1,223,662. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Mortlake are now selling for between £7,270 and £10,300 per square metre (£675 and £956 per square foot). Based on an internal area of 114 m², this implies a valuation between £829,000 and £1,174,000. Treat this as context only. For a valuation using hand-picked comparable sales, use the Advanced search tool — create a shortlist of similar condition homes, then export a valuation report.
- Bedrooms
- 3
- Type
- Terrace
- Council tax band
- F
- Plot size
- 182 square metres (1,959 square feet) - map showing freehold boundary lines
- Planning ref:
- May 2021 21/1767/PS192
- Type:
- Outline application - proposal prior to a full application, including assessments and scoping opinions.
- Status:
- Application approved
- Address:
- 18 Observatory Road East Sheen London
- Description:
- Single-storey rear extension.
- Planning ref:
- March 2021 21/0819/PS192
- Type:
- Outline application - proposal prior to a full application, including assessments and scoping opinions.
- Status:
- Application approved
- Address:
- 18 Observatory Road East Sheen London
- Description:
- Erection of an outbuilding 3n in width, 4.6m in depth with a maximum height of 2.5m, to be used as a study.
- Planning ref:
- December 2020 20/3765/PS192
- Type:
- Outline application - proposal prior to a full application, including assessments and scoping opinions.
- Status:
- Application approved
- Address:
- 18 Observatory Road East Sheen London
- Description:
- Rear dormer roof extension and 4 no. rooflights on front and side roof slopes.
- Planning ref:
- December 2018 18/3622/HOT
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 18 Observatory Road East Sheen London
- Description:
- Single storey rear extension.
- Summary:
- 20 October 2016 - energy performance certificate grade D
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Marketed sale
- Tenure:
- Owner-occupied
- Property type:
- Mid-Terrace House , has 6 habitable rooms. Estimated year built 1900 to 1929
- Area:
- 114 sqm (1,227 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, 250 mm loft insulation. Heating: Boiler and radiators, mains gas.
18 Observatory Road is worth whatever price a willing buyer and seller agree upon. However, the following can provide useful context.
- HouseMetric estimates the most recent sale price indexed forward to today's value is £1,223,662.
- Based on an internal area of 114 m² and recent prices in Mortlake, this implies a lower and upper quartile range from £829,000 to £1,174,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.