I lock my bike to my railings every night by the frame with my D lock..
As I get renovations done on my house I'm wondering whether there's some system out there which does away with my D lock so that I can lock my bike securely to the ground or wall straight from the installed lock.
Does anyone know of such a thing? Or does anyone have any other satisfactory system?
Any help gratefully received.

AirLok system. https://hiplok.com/product/airlok/

What an excellent answer! Thanks so much for pointing me to this.

how about a locking steel shed?

I used to use about a 6' length of the largest chain they sell at HomeDepot & a very large Master pad lock. It's much cheaper than the heavy duty bicycle specific locks. Weighs a ton. So, it's really something you leave behind when you go riding.

So I would get a ground anchor like the GRANIT™ WBA 75 from ABUS and then use the GRANIT™ CITY CHAIN XPLUS and that will be a good solid lock solution if you want to avoid U-locks. I don't bother with other brands or companies claiming this or that. I want a company I know I can trust and ABUS is that company. They are not in the business to just get a sticker on the lock so people think it is secure they are in the business of making the lock exceed the basic tests to get that sticker and making sure they are putting out a high quality product in their own factories and making sure it works.

Don't use home despot chain and a cheap (or expensive) master padlock or anything like that. Most of those chains are not designed for locking and security and can be easily defeated and master locks are just easy to get into and generally poor security. Don't trust a large chain store that doesn't specialize in bicycles or motorcycles to get security for those products. Thickness does not always equal security it just equals thickness. I trust the 8 of 15 chain from ABUS more then I would the thickest home despot chain that came from China. Having tested that chain vs. the highest security Schlage/Kryptonite chain it lasted a lot longer. The Schlage chain was busted by a sledgehammer in two blows, the lower security ABUS chain didn't brake after 10 minutes and different people hitting it over and over and people eventually got bored and tired. Sure that is anecdotal but was a fun experiment.

Having a security camera or cameras is also a great deterrent.

I assume the bike theft problem is just as bad in London as it is here. If that is the case, just remember, any lock will be defeated, given enough time and commitment by the thieves. I keep mine inside. Already had a beautiful Orbea stolen several years ago. Not going through that again...

I suggest that if you can secure the frame and wheels that would be good as wheels can easily go missing.
strong padlock and chain would be good motorbikers use them but mind your paintwork etc.
Thanks David

This is great!