Guests at Washingborough Hall near Lincoln will now have the choice of booking a room at a newly converted on-site cottage.
The £150,000 extension, totalling six additional bedrooms, takes the total number of rooms at the country house hotel from 14 to 20.
Owners Edward ad Lucy Herring decided to transform their former private residence into six individually decorated bedrooms in response to growing demand from leisure and business travellers.
Edward said: “Over the past nine years the hotel has been completely refurbished and in 2015 we built the Winston Room orangery which has provided a beautiful space for weddings, conferences and events.
“Converting the cottage, or Church House as it’s now called, was the next natural progression.
“As with the building and restoration work we’ve already undertaken, we were keen to provide all the modern-day comforts people expect from a high-quality modern country hotel, while retaining the original Georgian features and we’re delighted with the result. So far the feedback from guests has been amazing.”
All the rooms in Church House, which is adjoined to the main hotel, have all been individually decorated in line with the existing décor and feature modern bathrooms, flat screen TVs, tea and coffee making facilities and free wi-fi.
Guests can either book individual rooms or the whole of Church House.
To celebrate the opening, the hotel is offering a special Autumn Leaves & City Spires two-night break for £95 per person per night.
Available until November 30 2017, the offer includes a two-night stay in one of the hotel’s classic double rooms and a three-course dinner in the award-winning Dining Room Restaurant on both nights.
There is also a complimentary shuttle bus into Lincoln. The offer also includes two complimentary tickets to the cathedral.