Are these cracks in external wall anything to worry about?

28 Dec 2021
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United Kingdom
1950s terraced house, ex-local authority, generally solid as a rock

I noticed some cracks today, might have been there forever, I never looked for them. The first picture is under the front downstairs window, right in the middle (horizontally and vertically), so on the oposite side of the living room radiator (large, hot). The second picture is to the right of said window and several bricks above DPC.

unnamed2.jpg unnamed.jpg

No bricks/mortar below DPC cracked or anything, no other cracks anywhere else, no internal cracks either.

Do I need to worry? I'm ****ting bricks, really. I realise the house stood for 70 years with no problems whatsoever and will not fall anytime soon, but if it's problem, I'd like to prevent/fix it.
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No. I have similar and so do other properties
so you're telling me I can enjoy my weekend and not ruminate about spending tens of thousands of pounds on an unsellable house that might one day crush my family under rubble?

should I get a brickie to at least repoint here and there using the original mortar (I presume that's limestone based mortar, right?)?
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