3 bed flat for sale Belsize Square, Belsize Park, London, NW3
Added on 21/09/2026
About this property
We are delighted to the market, situated on one of Belsize Park’s most sought-after addresses, this impressive three-bedroom, two-bathroom garden flat offers 1,486 sq. ft. of beautifully proportioned living space and the rare advantage of a private garden.
Key features
- Three double bedrooms & Two luxury bathrooms
- Open plan reception room
- Pet friendly building
- Potential to extend subject to the neccessary consents
- South facing garden
- Newly refurbished
- Shared Freehold
- EPC Current C
Floorplan
Energy performance
Energy rating band C 69
This home is rated band C, scoring 69 out of 100. The average British home is band D. Its certificate says it could reach band B (81) if the improvements it recommends were carried out.
Read from the certificate published with this listing, so it may not be the latest one. Check the government EPC register for the full certificate and its recommendations.
Price guide
£1,141 per sq ft, around the middle of recent sales in NW3 (£756–£1,664, 10th–90th percentile, 1,009 sales over 24 months).
Lowest and highest are the 10th and 90th percentiles of 1,009 homes sold in NW3 over the last 24 months. This home's figure uses its asking price. All sold £/sq ft in NW3 →
Location
Belsize Square, Belsize Park, London, NW3, NW3 4HT
- Council tax
- Band G (Approx £3,679/year)Camden's 2026/27 area average, including the typical parish precept for band G. Your bill may differ: single-person and other discounts may apply.
Mortgage and stamp duty
A £1,525,000 mortgage. Most lenders would want a household income of about £339,000 to support it.
A guide only, for a capital repayment mortgage. The rate you are offered and what you can borrow depend on your circumstances and a full application with a lender or broker. Your home may be repossessed if you do not keep up repayments on your mortgage.
Historic sold prices nearby
HM Land Registry sales in NW3 4HT. Floor areas from Energy Performance Certificates where matched.
| Address | Type | Sold | Size | Size | £/sq ft | Price |
|---|---|---|---|---|---|---|
| Flat 5, 8, Belsize Square Flat / maisonette | Flat / maisonette | Nov 2024 | 958 sq ft £1,138/sq ft | 958 sq ft | £1,138 | £1,090,000 |
| Flat 2, 5, Belsize Square Flat / maisonette | Flat / maisonette | Oct 2023 | — | — | — | £780,000 |
| 10d, Belsize Square Flat / maisonette | Flat / maisonette | Sept 2023 | 495 sq ft £1,247/sq ft | 495 sq ft | £1,247 | £617,500 |
| Flat 4, 22, Belsize Square Flat / maisonette | Flat / maisonette | Aug 2022 | 1,023 sq ft £1,301/sq ft | 1,023 sq ft | £1,301 | £1,330,000 |
| Flat 5, 22, Belsize Square Flat / maisonette | Flat / maisonette | May 2022 | 743 sq ft £1,346/sq ft | 743 sq ft | £1,346 | £1,000,000 |
| 4e, Belsize Square Flat / maisonette | Flat / maisonette | Mar 2022 | — | — | — | £519,000 |
| 15a, Belsize Square Flat / maisonette | Flat / maisonette | Feb 2022 | — | — | — | £1,625,000 |
| Flat 2, 9, Belsize Square Flat / maisonette | Flat / maisonette | Jun 2021 | 1,066 sq ft £1,126/sq ft | 1,066 sq ft | £1,126 | £1,200,000 |
Area insights
The neighbourhood around this property.





