Mid-terrace houses can have a lot going for them providing you have good neighbours on both sides of your property.
It seems that the house you're interested in has been modernised and the kitchen may have been relocated to an adjoining wall hence the lack of window. Remember that, for most folk, the kitchen is the heart of the home and natural light is important in any rooms that get the most use.
When it's your first house purchase it's so easy to get carried away, especially if you've been living in cramped conditons, but my searches have shown that there's lots of available 3 bed properties in Enfield and many are below your budget .
I'm sure you're anxious to get into your own place as soon as possible, but if you haven't viewed many properties get yourself out and about. Take a notebook and record everything from your first impression on sight of the house, through to interior, garden(s), local amenities, proximity to good schools etc, and if you find a house that's of interest to you, lurk around the area at different times of the day and night to get a 'feel' for the place.
If you intend this to be your first step on the property ladder and hope to move on to bigger/better after a few years, look for something that will resell with little effort.
I like the look of the property with g/f bathroom that Hatesponge has provided a link to. It has advantages that may not be immediately apparent to you: it is semi-detached with halls adjoining which means that while you may hear the neighbours clumping up and down, you're unlikely to hear their tv/stereo - plus you'll only have one near neighbour.
In addition, there's room on the side to extend if you decide to stay put - you could build a garage with an upper additional bedroom and a family bathroom, or simply extend the ground floor living area and wait till funds are available to add another level.
Ground floor bathrooms aren't the end of the world - they can be a boon if you have young children as you can do supper, bath, cuddle & story in front of the living room fire, and up to bed. And the minor inconvenience of pottys for the littlies (and possibly a portaloo for the adults) pales into insignificance if you've saved 10k+ on the otherwise house of your dreams.
It's a buyer's market at the moment; be choosy as there's every reason to expect that you can get a very nice house for your bucks.
BTW, the cottage I've given the link to originally belonged to the Parker Bowles family. If you buy that particular des res you'll be able to thumb your nose at any snooty m/netters - of course they'll probably be falling over themselves to try and blag an invite but courtesy dictates that I'll be your first guest for afternoon tea and they can eat crow 