HFEA-licensed fertility clinic in London, UK. Below: the UK national success benchmark by age and how UK cost compares with EU donor options.
Guy's & St Thomas' Fertility in London is licensed and inspected by the HFEA, the UK fertility regulator, which publishes each clinic's verified birth rate on its 'Choose a Fertility Clinic' tool. When comparing clinics, use live birth per embryo transferred for your own age band rather than pregnancy or per-cycle headline numbers, which can overstate the real chance of a baby.
The UK national benchmark (HFEA, own eggs, per embryo transferred) falls from about 35% under 35 to roughly 5% by 43-44, so a clinic's figure should always be read against your age, not as a single number. A higher headline rate can simply reflect a younger or simpler patient mix.
On cost: a private UK cycle is about €6,500, and UK donor eggs run near €11,000 with non-anonymous donors and waiting lists. Donor-egg treatment in the EU (Czechia, Greece, Spain) is €4,600-6,500 at about 48% per transfer at any age — frequently a lower cost per baby for patients over 40.
IVF success is driven mainly by maternal age and egg type, not by the country you choose. The public registries put own-egg live birth at roughly:
For this clinic's exact published birth rate, see its HFEA profile on Choose a Fertility Clinic.
Guy's & St Thomas' Fertility in London is one of 14 fertility clinics in the capital — a major hub for international patients. London clinics see higher volumes from overseas patients and typically offer rapid appointment scheduling.
UK IVF birth rates (per embryo transferred, own eggs, HFEA 2022): 35% under 35, falling to ~4% over 45. Each clinic varies around this — always check the clinic's own HFEA figure.
Source: HFEA (national averages, 2022). We do not publish per-clinic rates — verify on HFEA. Educational only.
The success rates, cost ranges and legal-eligibility rules on this page are compiled from public clinical registries and national guidelines — not opinion. They are planning estimates and do not replace advice from a licensed fertility specialist.
Reviewed against: HFEA (UK), SART/CDC (US), ESHRE/EIM (EU) and NICE CG156.
Compiled and fact-checked by the BabyPath editorial team against the primary sources above · last reviewed 2026-06-12 · BabyPath is an independent cross-border comparison platform, not a clinic. Always consult a licensed clinician before starting treatment.
We compare IVF success rates, prices and laws across 12 countries — using real CDC, HFEA and ESHRE data — to show your true cost per baby, not per cycle. Donor eggs, age 40+, single or same-sex: we show where it's affordable and legal for you.
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