Westminster Apartments Out-Yield Houses on Buy-to-Let

Apartments edge houses on gross yield in Westminster because entry prices are materially lower while monthly rents hold up remarkably well, so every pound of capital works harder on a flat than on a townhouse. Average apartment gross yields run at roughly 2.8% against 1.4% for houses, a gap of 1.4%. These are gross figures before service charges, ground rent and management fees, all of which hit apartments harder in absolute pounds than the headline gap suggests. Council tax is the tenant's responsibility under standard buy-to-let tenancies, but holiday lets typically fall under business rates (where Small Business Rate Relief often reduces the bill to nil).

These are city medians across 75 postcodes, and Westminster is one of the most heterogeneous boroughs in the UK. Your specific postcode may sit well above or well below these numbers, with a spread from roughly 2.8% in prime postcodes like St John's Wood (NW8) to around 4.9% in Maida Vale/Little Venice (W9).

Bedroom-by-Bedroom: Price, Holiday Let Yield and Buy-to-Let Yield

City medians across 75 postcodes. Gross yields before service charges (apartments) and before operating costs.

Warning: holiday let figures apply only where legally permitted. Westminster sits within Greater London, so the 90-day rule under the Deregulation Act 2015 caps short-term letting at 90 nights per calendar year unless you secure planning permission for change of use. Beyond 90 nights, Airbnb automatically blocks bookings on London addresses.

Read across the table and the apartment advantage on buy-to-let is consistent at every practical bedroom count, but the cross-strategy picture is more interesting. Holiday letting in Westminster is mechanically constrained: with only 90 legal nights per year before planning permission is required, gross holiday-let yields cannot reach the levels they do in permissive UK markets. That is why, in this borough specifically, the buy-to-let column matters more than the holiday-let column for most investors, and it is where apartments have their clearest edge.

Why Apartments Win on Yield and What Narrows the Gap

The mechanism is arithmetic. A typical 2-bed apartment in Westminster transacts at roughly £863,328, while a 2-bed house runs closer to £1,872,915. Monthly rents on the two property types are much closer than the prices imply, because tenants rent square footage and location rather than ownership structure. A tenant in Marylebone or Pimlico is typically paying for proximity, a doorman and the postcode, not the deeds, so the rent differential between flat and house is modest while the price differential is large. Lower denominator, similar numerator, higher yield.

That advantage narrows once service charges enter the picture. Apartment gross yields above are stated before service charge and ground rent, which in prime central London typically run from roughly £5,203 per year for a standard 2-bed upwards, and considerably more for porter-staffed buildings in Mayfair, Belgravia or the newer St John's Wood developments. Lift maintenance, concierge, 24-hour security and communal gardens all land on the leaseholder. Houses carry no equivalent standing charge, which is why the net yield gap is always tighter than the gross yield gap.

Leasehold terms are the other consideration. Many Westminster leases explicitly prohibit short-term letting, and some prohibit letting altogether without freeholder consent. Even where the lease is silent, the 90-night London cap applies by statute. Read the lease carefully before exchanging contracts, because a restriction you discover after completion cannot be undone.

Bedroom Count: Houses and Apartments Both Climb with Size

Houses and apartments behave differently as bedroom counts rise. House yields in Westminster climb gradually with bedroom count, from 2.3% at 1-bed to 3.4% at 4+ bed on buy-to-let, because rents scale slightly faster than capital cost as you move up the size ladder. Westminster's housing stock is dominated by terraces and townhouses in established streets, where price per square foot is relatively uniform within a postcode.

Apartment buy-to-let yields follow the same upward trajectory but at a higher level, rising from 4.7% at 1-bed to 6.0% at 4+ bed. On the holiday-let side apartment yields peak at 3-bed (3.0%) and fade marginally at 4+ bed, likely reflecting the steep prices of penthouses and lateral duplexes in blocks like those around Hyde Park, where nominal rents are high but purchase prices are exceptional. Note the 4+ bed category bundles 4, 5 and 6+ bedroom listings, so a small number of trophy units can swing the median.

Postcode Variation Is Larger Than the House-Apartment Gap

These are city medians across 75 postcodes, and the spread within Westminster is significant. Maida Vale/Little Venice (W9) leads on yield at 4.9%, while prime addresses like St John's Wood (NW8) sit closer to 2.8% because capital values there reflect a global buyer pool rather than a rental-return calculation. Mayfair/Grosvenor Square (W1K) and Pimlico/Victoria (SW1V) illustrate the middle of the distribution. The dashboard shows suburb-level data for every bedroom count and property type, so you can compare within the specific area you are evaluating rather than relying on the borough median.

View Westminster in the dashboard → Free preview · every bedroom count and property type

What the Table Does Not Capture

• Service charges and ground rent: Estimated at around £5,203 per year for a 2-bed apartment in Westminster, rising sharply in porter-staffed prime buildings. These are not deducted from the gross yields shown above, and they are the single largest reason apartment net yields trail the gross figure.
• Capital appreciation: Houses usually outperform apartments on long-term value growth because you own the freehold and the land. In Westminster specifically, freehold townhouses in areas like Belgravia, Mayfair and Little Venice have historically tracked ahead of the leasehold flat market over long holding periods.
• Leasehold risk: Unextended short leases cost tens of thousands to renew, and recent freeholder disputes over service charges have damaged values in several prime blocks. Houses sidestep these risks entirely.
• Financing constraints: Some lenders restrict buy-to-let mortgages on ex-local-authority flats, studios below 30 square metres, or properties above commercial premises, all common in central Westminster.
• 4+ bed data breadth: The 4+ bed category bundles 4, 5, and 6+ bedroom listings. A small number of outlier properties, particularly penthouses, can pull the median in either direction.
• FHL tax regime: Abolished from April 2025. Holiday lets and buy-to-let are now taxed equivalently, so the financial comparison between the two strategies matters more than ever.

Westminster Is a Premium Appreciation Market, Not a Cash-Flow Market

Westminster's median 3-bed house price of roughly £2,389,616 sits far above the London regional median of £631,954 and dwarfs the UK national median of £253,493. The borough's gross yield of 2.6% correspondingly sits well below the national median of 5.7%. This is the classic shape of a prime capital appreciation market: you accept a lower running yield in exchange for exposure to a rare, constrained asset class with deep international demand.

That framing matters for the house-versus-apartment decision here specifically. If you are buying Westminster for yield, you are probably buying the wrong borough, and an apartment in a higher-yielding part of London would serve you better. If you are buying Westminster for long-run appreciation, currency diversification, or legacy ownership, the house generally wins on capital growth and lease simplicity, and the yield shortfall is a rounding error against the primary investment thesis.

For the borough-level picture see London Rental Investment Insights. For the highest-yielding Westminster postcode in isolation, see Maida Vale/Little Venice (W9) Tops Westminster Yields at 4.9%.

For the full methodology, see our market score methodology and data sources. To model your own assumptions at the postcode level, explore rental data in the dashboard.

Data reflects market conditions as of April 2026.

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.