Hi Wendell
I think this works

http://www.getawayguides.com/scarolina/beaufort/beaufort.htm
With few *contemporary intrusions*, the entire downtown is designated a national historic district. It’s said to comprise the single richest concentration of antebellum dwellings in America.

http://www.oilheritage.com/update/AppendixA_Resources_06Feb1...
Liberty Street provides a sequence of intact settings, with minor *contemporary intrusions*, such as the Quality Inn and some
contemporary development at the corner of 13th street.

http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2001/09/07/...
"This building is not in harmony. It is almost defiant," warned Gerald Green, the city's planning director. He said an approval could make it hard to protect Union Square from other *contemporary intrusions*. "We're coming down a slippery slope here. It will be difficult in the future to say no to other (similar) buildings."



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Note added at 3 hrs (2006-08-01 22:33:47 GMT)
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Could be *of lesser architectural value* or *of lesser beauty/interest*

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Note added at 3 hrs (2006-08-01 22:54:39 GMT)
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To clarify what is meant by *intrusioni*

http://www.provincia.torino.it/web_cartografico/ptp/download...

Indirizzi di tutela e di valorizzazione
- Riqualificazione delle intrusioni incompatibili recenti nei punti nodali del centro più antico.

Caratteri urbanistici e architettonici emergenti
- Insediamento prevalentemente concentrato di impianto XVI-XIX secolo, con notevoli recenti intrusioni.

http://www.paginesi.it/perugia/spello/storia.htm
Queste intrusioni edilizie più recenti si inseriscono in un tessuto storico che presenta comunque un buon livello di manutenzione