173a, High Street, Beckenham, BR3 1AH
About 173a
173a is a mid-terrace house in Beckenham (BR3 1AH). It has a recorded floor area of 53 m² (around 570 sq ft) and construction records dating it to 1900-1929. At 53 m² this is the 12th smallest of 25 units on EPC record in the building, where floor areas span 41–77 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (February 2026) shows a C (score 71). When first surveyed in October 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Poor. This certificate was lodged in the last six months, so the rating reflects current condition.
Today's modelled estimate of £279,000 sits 55% above the 2014 sale of £180,000. On a £-per-square-foot basis, the last sale (£316/sq ft) was about 16.2% below the postcode norm. 3 planning records sit against the property, 2 approved, 0 refused. Past consents include change of use to residential, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. 12 years since the last transfer (January 2014).
Know exactly what you're buying at 173a
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
Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Planning history
173a sits within a conservation area — exterior works face additional planning controls.
- Apr 2024ConversionAmendmentIn report
Retention of 1 x 2 bed flat on first floor (following grant of prior approval in 2013 under ref: 13/03034/RESPA). LAWFUL DEVELOPMENT CERTIFICATE (EXISTING).
Retrospective- Documents
- 8 docs on file
- Reference
- 23/03318/ELUD
- Aug 2023Change of UseIn report
Change of use of first floor from Class E (Commercial, Business and Service) to Class C3 (Dwellinghouses) to form 1 two bedroom residential unit, under Class MA, Part 3, Schedule 2 of the Town and Country Planning (General Permitted Development) Order 2015 (as amended) (56 day application for prior approval in respect of transport and highways impacts, contamination risks, flood risk, noise impacts, character or sustainability of a conservation area, provision of natural light to habitable rooms, impact on an area of general or heavy industry, impact of loss of services provided by a registered nursery or a health centre, fire safety impacts).
Conservation Area- Documents
- 13 docs on file
- Reference
- 23/02664/CUETC3
We flagged 2 things worth checking at 173a
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
£279,000
Modelled from EPC, postcode comparables.
£180,000
Recorded with HM Land Registry.
Sales timeline
7 January 2014Most recent
£180,000
Median price across the last 5 sales in BR3 1AH: £340,000 (2024–2019).
Nearby sales in BR3 1AH
171b, High Street, Beckenham, BR3 1AH
Sold Dec 2024
£340,000Ironstone House 205 213, High Street, Beckenham, BR3 1AH
Sold Oct 2023
£731,020175b, High Street, Beckenham, BR3 1AH
Sold Apr 2022
£263,158171a, High Street, Beckenham, BR3 1AH
Sold Jan 2019
£275,000181b, High Street, Beckenham, BR3 1AH
Sold Dec 2017
£15,489,715
Everything we know about 173a, 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 High Street homes
173a outperforms the street on years held by a wide margin.
Price per m²
£3,396
Street avg £3,962
Floor Area
53 m²
Street avg 56 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.8 t/year
Street avg 2.4 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.0 km
St Edmund's Hall — bus stop.
Closest school
0.5 km
Harris Primary Academy Beckenham Green. 43 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
53.7dB
Night-time· 23:00 – 07:00
44.4dB