There isn't a British Embassy or British Consulate in Cape Verde. There is an Honorary Consul on Sal Island who can be contacted in case of serious danger, death, imprisonment and other similar problems. However, British Nationals should seek other information from the Foreign and Commonwealth Office before travelling to Cape Verde.
There was a British Embassy Booklet produced for Cape Verde in 2012 (out of date), but it will provide some additional information that you may find useful. Click here for more info:
The British Honorary Consul on Sal is Albertino (Tino) Mosso. Tino is based in Santa Maria, Sal. A brief intro to Tino Mosso can be found here : Link: Tino Mosso - British Honorary Consul
You should also look at updates provided on the Government website: LINK: FOREIGN-TRAVEL-ADVICE-CAPE-VERDE
There is also an Honorary Consul to Cape Verde in LONDON, ENGLAND. For further information on the Consul in London, click here: HONORARY-CONSUL-LONDON
We provide marriage blessing ceremonies on the island of Sal, Cape Verde
Fancy a go at some -Water Sports
Tips on eating out -There are some great little places