Apartments edge houses on buy-to-let yield in Bromley because entry prices fall faster than rents do. A 2-bed apartment at roughly £336,619 lets for £1,658 a month, while a 3-bed house at £567,623 commands £2,395. The price gap is wider than the rent gap, so the gross yield arithmetic favours flats. These are gross figures before service charges, which materially narrow the gap once you factor in the leaseholder's annual contribution to the building.
The numbers below are city medians across 57 Bromley postcodes. Your specific postcode may sit well above or below, Bromley spans leafy West Wickham mansions through to denser stock around Penge and Crystal Palace, and yields move accordingly.
House vs Apartment Yields by Bedroom Count in Bromley
City medians across 57 postcodes. Gross yields before service charges (apartments) and before operating costs.
The combined table lets you compare strategies at a glance. Compare house against apartment at the same bedroom count, then look across bedroom counts to see how returns shift as you scale up the property. The buy-to-let columns deserve more weight than the holiday let columns in Bromley specifically, because the London 90-day rule caps short letting at 90 nights a year. We return to that constraint below.
Why Apartments Win on Gross Yield, and What Eats It Back
The mechanism is straightforward arithmetic. Apartment land values are minimal because flats sit on a fractional share of the freehold; house prices include a full plot, which in outer London carries a meaningful land premium. A 2-bed apartment at roughly £336,619 versus a 3-bed house at £567,623 represents the same bedroom configuration only loosely, but even bed-for-bed the apartment costs less. Rents do not fall by the same proportion, because tenants pay for liveable space and location, not for the freehold deeds.
Service charges are where the gross-yield advantage erodes. Bromley apartment leaseholders typically pay around £2,517 per year for a 2-bed in a standard block, covering buildings insurance, communal cleaning, lift maintenance, and a sinking fund for major works. Newer blocks in central Bromley with concierge and lifts can charge meaningfully more; older converted houses in BR3 or BR1 with no shared facilities sometimes charge less. House owners face equivalent costs (roof, exterior repairs, insurance) but pay them lumpily out of cash flow rather than monthly through a managing agent.
Then there is the lease itself. Many Bromley leases prohibit short-term letting outright, and most require landlord consent for any subletting. This matters less for buy-to-let where standard assured shorthold tenancies are uncontroversial, but it can be decisive if you ever want to switch strategies. Always read the lease before exchange, and budget for ground rent and any escalation clauses on top of service charges.
Bedroom Count Patterns Differ for Houses and Flats
House yields in Bromley actually firm up as bedroom count rises, from 4.3% on a 1-bed to 5.3% on a 4+ bed, because rents scale roughly in step with prices once you move past entry-level stock and family demand in West Wickham, Bickley, and Beckenham keeps larger homes well-let. Apartments behave differently: 1-bed and 2-bed flats serve the deepest tenant pool (young professionals commuting on the Hayes line, downsizers, sharers), and rents per bedroom hold up well, keeping yields fairly uniform across sizes at 6.0–6.5%.
The 4+ bed apartment category deserves caution. The category bundles 4, 5, and 6+ bedroom listings, which in Bromley means a thin sample of penthouse and duplex stock that does not represent typical investor product. Treat that category as directional rather than precise.
Suburb-Level Variation Inside Bromley
Bromley is not one market. The borough's highest-yielding postcode, Bromley (TN16), prices in at £480,600 for a 3-bed house and rents at £2,253, producing 5.6%. The lowest-yielding ranked postcode, St Paul's Cray/Orpington (BR5), sits at 5.2%. That spread is wider than the house-versus-apartment gap at the city level, which means picking the right postcode matters more than picking the right property type. The dashboard shows suburb-level data for every bedroom count and property type, so you can compare within the specific area you are evaluating.
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The London 90-Day Rule Reshapes the Comparison
Limited to 90 nights per year. London 90-day rule: properties without planning permission are limited to 90 nights/year of short-term letting. Applies to all London boroughs. Exceeding 90 days requires planning permission from the local council. Platforms like Airbnb automatically block bookings beyond 90 days for London addresses.
This regulation flips the calculus for any investor weighing holiday letting against buy-to-let. With only 90 permitted nights, the holiday let strategy in Bromley is structurally capped: even at perfect occupancy, gross revenue from a typical Bromley property maxes out at £19,366. Buy-to-let captures the full year. The holiday let columns in the table above should be read with that cap in mind. Some Bromley investors apply for change-of-use planning permission to lift the cap, but approval is far from guaranteed and typically requires a strong case for tourism or business demand that outer London postcodes rarely meet. The Furnished Holiday Let tax regime was abolished in April 2025, so the income tax advantages that once partly compensated for the night cap no longer apply.
Warning: holiday let figures apply only where legally permitted. The London 90-day rule restricts short letting to 90 nights per year without planning permission across all London boroughs.
What the Table Does Not Capture
- Service charges: Estimated at around £2,517 per year for a 2-bed apartment in this market, not deducted from the gross yields in the table above. Houses do not carry service charges but face equivalent maintenance costs paid lumpily.
- Capital appreciation: Houses usually outperform apartments on long-term value growth in outer London because you own the land. Bromley's leafier pockets (West Wickham, Bickley, Beckenham) have been steady appreciators; flats have lagged, particularly post-cladding-crisis stock where buyer pools narrowed.
- Renovation potential: Houses offer optionality (loft conversions, side returns, garden rooms) that flats cannot match. Bromley's permitted development rules are relatively permissive for outer London terraces and semis.
- Financing constraints: Some lenders restrict mortgages on small studios, ex-local-authority blocks, and flats above commercial premises. Houses face fewer lender exclusions.
- 4+ bed data breadth: The 4+ bed category bundles 4, 5, and 6+ bedroom listings. A small number of outlier properties can pull the median in either direction, particularly for apartments where larger-bedroom stock is thin.
Bromley's Position Against London and the UK
Bromley sits as a premium-but-yield-respectable outer London market. Median 3-bed house prices of £567,623 run below the wider London average of £631,954, and well above the UK national median of £253,493. The buy-to-let yield of 5.1% sits above the London average of 4.6% but below the UK national median of 5.7%. That places Bromley in the cash-flow-acceptable end of London rather than the prime appreciation tier of zones 1 and 2.
Practically, this means the house-versus-apartment decision in Bromley is closer to a balanced trade than it would be in, say, Westminster (where appreciation dominates) or northern England (where yield dominates). Apartments give you the slightly higher gross yield and lower entry price; houses give you land, optionality, and the long appreciation track record. The London 90-day cap removes holiday letting as a serious differentiator either way, so the choice rests on cash-flow priorities versus capital growth priorities. Data reflects market conditions as of April 2026.
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For methodology details, see the market score methodology and our data sources.
This information is for educational purposes only and should not be considered financial or legal advice. Regulations and market conditions change frequently. Verify current rules with local authorities before making investment decisions.