50 Union Street, Barnet, EN5 4HZ
About 50 Union Street
50 Union Street is a four-bedroom detached house in Barnet (EN5 4HZ). It has a recorded floor area of 201 m² (around 2164 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (February 2018) shows an E (score 40), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump. Our model identifies extension potential, subject to local planning policy.
At 201 m² the property is well over the postcode median (62 m² across 28 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, new windows and partial demolition, meaningful when judging how the property has evolved. Today's modelled estimate of £969,000 is 30.1% above the 2020 sale price. Last sale on file: £745,000 in March 2020.
Know exactly what you're buying at 50 Union Street
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
- Bedrooms4
- Bathrooms2
- Dining roomYes
- Utility roomYes
- EnsuiteYes
Building
- Extension potentialPossible
Energy performance
50 Union Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Oct 2021Tree WorksTreesIn report
1 x Lime (applicant's ref. T1) - Reduce branches touching property back by 3m;1 x Hawthorn (applicant's ref. T2) - Remove and poison stump;1 x Holly (applicant's ref. T3) - Crown reduction by 30%
- Documents
- 3 docs on file
- Reference
- TCP/0664/21
- Mar 2021DemolitionFullIn report
Extension: Single storey · Rear of property
Roof extension involving insertion of 4 roof lights. 1no. rear window, 2 no. side windows. Demolition of informal lean-to-shed at rear. Creation of winter garden at rear within existing envelope. Changes to fenestration on west and north elevation.
ExtensionNew Windows- Documents
- 9 docs on file
- Reference
- 20/4552/HSE
We flagged 2 things worth checking at 50 Union Street
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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£969,000
Modelled from EPC, postcode comparables.
£745,000
Recorded with HM Land Registry.
Sales timeline
19 March 2020Most recent
£745,000
Median price across the last 5 sales in EN5 4HZ: £477,500 (2024–2022).
Everything we know about 50 Union Street, 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 Union Street homes
Floor Area for 50 Union Street runs comfortably ahead of the street norm.
Price per m²
£3,706
Street avg £5,850
Floor Area
201 m²
Street avg 69 m²
Habitable Rooms
8 rooms
Street avg 4 rooms
CO₂ Emissions
14.0 t/year
Street avg 3.9 t/year
Similar properties nearby
1 Elizabeth Close
EN5 4DP
1 Calvert Road
EN5 4HH
1 Greenacre Close
EN5 4QB
1 Carnarvon Road
EN5 4LX
1 Green Dragon Barn, St Albans Road
EN5 4RE
1 Grimsdyke Crescent
EN5 4AH
1 Cavendish Road
EN5 4ED
1 Boundary Close
EN5 4PE
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Salisbury Road — bus stop.
Closest school
0.3 km
Barnet and Southgate College. 16 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
51.6dB

Night-time· 23:00 – 07:00
42.3dB