2 Siddons House, Cottage Close, Harrow, HA2 0HG
About 2 Siddons House
2 Siddons House is a three-bedroom detached house in Harrow (HA2 0HG). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to 1930-1949 and council tax band F. At 107 m² this is the largest unit on EPC record across the building (60–107 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (November 2022) shows a D (score 61), on the cusp of jumping into the C band. Earlier certificates rated it B (July 2009); the latest reading is 2 bands lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to C (score 70).
At 107 m² the property is well over the postcode median (73 m² across 40 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Most recent transfer was February 2025 at £435,000 — fresh data. Today's modelled estimate of £499,000 is 14.7% above the 2025 sale price.
Know exactly what you're buying at 2 Siddons House
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms1
Energy performance
2 Siddons House sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Planning history
2 Siddons House has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 2 things worth checking at 2 Siddons House
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
2 Siddons House's sale-price growth has lagged the wider UK trajectory across its history on file.
£499,000
Modelled from EPC, postcode comparables and a sale-price growth of 0.5% per year over 19 years.
£435,000
Growth on file: 0.5% per year over 19 years.
Sales timeline
21 February 2025Most recent
£435,000
+10.1%over 19 years29 August 2005
£395,000
Median price across the last 5 sales in HA2 0HG: £278,000 (2023–2022).
Nearby sales in HA2 0HG
7 Blake House, Cottage Close, Harrow, HA2 0HG
Sold Feb 2023
£360,0003 Blake House, Cottage Close, Harrow, HA2 0HG
Sold Jan 2023
£278,0005 Siddons House, Cottage Close, Harrow, HA2 0HG
Sold Sept 2022
£275,0004 Siddons House, Cottage Close, Harrow, HA2 0HG
Sold Jul 2022
£305,00014 Langton House, Cottage Close, Harrow, HA2 0HG
Sold Mar 2022
£415,000
Everything we know about 2 Siddons House, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other Cottage Close homes
2 Siddons House is notably below the street on years held.
Price per m²
£4,065
Street avg £4,686
Floor Area
107 m²
Street avg 71 m²
Habitable Rooms
5 rooms
Street avg 3 rooms
CO₂ Emissions
4.9 t/year
Street avg 1.9 t/year
Similar properties nearby
1 Chatsworth Gardens
HA2 0RS
1 Blake House, Cottage Close
HA2 0HG
1 Crown Street
HA2 0HT
1 Abbots Drive
HA2 0RE
1 Athena Close, Byron Hill Road
HA2 0JB
1 Cottage Close
HA2 0HA
1 Clonmel Close
HA2 0JZ
1 Emerald Court, Drinkwater Road
HA2 0FR
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Roxeth Hill — bus stop.
Closest school
0.1 km
St Dominic's Sixth Form College. 29 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
48.8dB

Night-time· 23:00 – 07:00
40.7dB