Flat 2, 21
Flat 2, 21
Description & Estimates
The public record describes Flat 2, 21, Siddons Lane as a mid-century apartment with 785 ft2 of internal area.
In this area, apartments of this size normally have 2 bedrooms.
Flat 2, 21, Siddons Lane has an estimated sale value of £797,075 and an estimated rental value of £4,018 per month, assuming reasonable condition and based on the information available.
The apartment sits within 21, Siddons Lane, London, NW1.
Siddons Lane, London, NW1 lies in the borough of City of Westminster, within the NW1 postal district.
Our Data Sources
Flat 2, 21, Siddons Lane has no recent1 records in the the Land Registry and a single entry in the EPC database dated February 2016.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate Flat 2, 21, Siddons Lane would be worth £836,928, with a potential rental value of £4,219 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £741,279, with a rental value of £3,737 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Recent Market Change
The estimated sale value of Flat 2, 21, Siddons Lane has dropped by £10,358 (1.3%) over the last year. During the same period, its estimated monthly rental value has risen by £228 (5.7%). The property's estimated gross yield is currently 6.0%.
Energy Efficiency
Flat 2, 21, Siddons Lane has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 24 Feb 2016.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
Flat 2, 21, Siddons Lane last changed hands on 28th February 1997, selling for £169,000. The transaction was logged as a leasehold flat by HM Land Registry.
That is its only recorded sale since 1995.
- Sold Feb 1997£169,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 220 metres of Flat 2, 21, Siddons Lane across the last 2 years.
Most recently, Flat 4, 21, Siddons Lane, London, NW1 5NF, a leasehold flat, sold at £820,000 on the 31st March 2026.
Read more about house prices in NW1.
- Sold Mar 2026£820,000 | 2 Bed Flat21, Siddons LaneFlat 4, 21, Siddons Lane, London, NW1 5NF
- Sold Jul 2025£875,000 | 2 Bed FlatClarence Gate Gardens, Glentworth StreetFlat 168, Clarence Gate Gardens, Glentworth Street, London, NW1 6AP
- Sold Nov 2024£800,000 | 2 Bed FlatClarence Gate Gardens, Glentworth StreetFlat 165, Clarence Gate Gardens, Glentworth Street, London, NW1 6AP
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks Flat 2, 21, Siddons Lane as the 6th largest and the 3rd most expensive of the 45 addresses on Siddons Lane, London, NW1.
Against the NW1 postcode district average, it is £26k less expensive than the typical property.
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Schools Nearby
- 500mSt Edward's Catholic Primary School
- 500mSt Mary's Bryanston Square CofE School
- 600mChrist Church Bentinck CofE Primary School
- 500mThe St Marylebone CofE School
- 1.4kmMarylebone Boys' School
- 2.0kmMaria Fidelis Catholic School FCJ
More reading links
Public Transport Nearby
Baker Street station is the nearest stop to Flat 2, 21, Siddons Lane at 200 metres away.
- 200mBaker Street
- 300mLondon Marylebone
- 300mMarylebone
Risk of Flooding
Environment Agency data suggests this area has a very low risk of flooding.
