Can Anyone Identify This Building?

[Jool]

I haven't given up the search yet, but I wonder if the Seaford Museum may be able to help with the Old Cottage/Stanmer Cottage connection.

http://seafordmuseum.co.uk/

This is listed in the the "Services" tab.

Housing Registry
This is an unusual facility to be held in a town museum. It is a register of nearly all houses in Seaford based mostly on information from the town estate agents as well as information from house owners. It has been assembled over several years by a team of volunteer helpers and includes photographs and lists of residents taken from the Electoral Registers. As above, access is by appointment but visitors may browse with an archivist on the first Sunday afternoon each month and other special events.

They say access is by appointment but as you live in another country they may offer to look for you - worth a try.

[SonofSussex]

I'll definitely try the museum.  Will send a message tonight (my time) so they have it first thing Monday. 

[SonofSussex]

Almost two weeks later, no response from the Seaford Museum.  Unfortunately, this is not the first time I've failed to receive a response from them.