When fortifications were created around the town it was initially 
along the line of the existing sea bank, by this time well east of the 
actual line of the riverbank.  Since the built-up area 
of the town was in the eastern half of the territory between the river 
and the sea bank (i.e. concentrated closest to the river), there was 
land available in the western half for pastures, orchards, mills, or 
for the monastic complexes of the various orders of 
friars which established themselves in Lynn in 
the thirteenth century.   In the fourteenth and fifteenth centuries, 
progressive reclamation of land from the river (by silting, dumping of 
refuse, and building over the river edge) allowed wealthy merchants to 
establish their complexes along the westward-shifting river's edge or 
along the banks of the Millfleet or Purfleet, which gave access to and 
from the river.  A few of the 
later 
examples survive today and are among the architectural treasures 
which give parts of modern King's Lynn a sense of the town at the close 
of the Middle Ages.
 
 
Some surviving ecclesiastical architecture
[left] A 15th century tower of the Franciscan friary;
the Franciscans established themselves in Lynn in the 1260s,
occupying a site between St. Margaret's and St. James'.
[right] The Chapel of Our Lady at the Mount
(commonly known as Red Mount), built 1483,
 
lay just outside the eastern defensive perimeter.
photos © S. Alsford
For many townsmen a single property served as the owner's 
home 
and place of business.  A merchant complex was typically a long and 
narrow plot of land on which was built a combination of residence, 
shop, warehouse and private quay;  sometimes the property was divided 
by a street, so that the quay and associated buildings were adjacent 
to the water while the residence was on the opposite side of the street, 
but in most cases all the buildings lay between street and waterway.  Plots 
usually had their narrower side facing the street;  this side might be up 
to 50 feet wide in the thirteenth century, but by the fifteenth when there 
was greater demand for frontage (at least in certain parts of the town) 
30 feet was a more normal width.  However, despite some measure of planned 
creation of the town, there is no evidence of an attempt at any time to 
standardize the size of building plots.  The largest holdings might take 
the following layout:
- one or more shops would front the street, while above them 
and often extending out over the street 
would be living/sleeping chambers (known as solars, because likelier to 
take in sunlight through the windows);
- the merchant's hall (the focus for cooking and dining), 
parlour, and other residential rooms, would lie behind these;
- further back, in the centre part of the property, surrounding a narrow 
courtyard (which both provided access to the various parts of the building 
and acted as a light-well), were storerooms and other buildings serving 
purposes such as brewhouse, bakehouse and stable; 
- finally, at water's edge were warehouse and quay. 
 
Thoresby College doorway
The college was built ca.1510, a testamentary
foundation of Thomas Thoresby, sometime mayor
 
and member of a leading burgess family.  The style
of the doorway is very similar to those of the
15th century.
photo © S. Alsford
 
More moderately sized 
properties  particularly those elsewhere than the waterfront, and 
particularly as street frontage was reduced in width towards the end of 
the Middle Ages  owned by lesser merchants or well-to-do craftsmen might 
comprise one or more retail shops and/or industrial workshops facing the 
street, with living quarters above;  often as a later addition, halls 
were built behind the shop/solar and more utilitarian structures further 
back, with a narrow passageway leading off the street, under the front 
range of buildings, and down one side of the plot to give access to the 
structures further back.  Lesser craftsmen or retailers would probably 
have made do with just a shop/solar structure.  Since dwellings of the 
poorer townspeople were the most likely to be of flimsy construction, 
subject to deterioration and later replacement, we know little of the 
living conditions of that group, although documents refer to cottages 
which were probably small, single-room residences of the lower strata 
of borough society.
Another part of King's Lynn's architectural heritage are two of the 
halls 
built by medieval gilds of the town, 
along with the buildings serving as the 
base 
for the Hanse merchants in Lynn, known 
as the steelyard.  The gilds, as organized 
instruments of interest groups within the 
community, played an important part 
in building and/or maintaining public facilities.  Most striking is the 
hall of Holy Trinity Gild, which was 
apparently the successor to the Merchant Gild authorized by the 1204 charter.  
By the late thirteenth century it had a meeting hall in the Saturday 
Market, naturally enough, near St. Margaret's.  This was gutted by 
fire in 1421 and a new hall was constructed (using brick) at a different 
location, in the northwestern corner of the market;  the Gild spent over 
£200 on this project during the following two years. 
The side facing out into the market was decorated with a chequered 
pattern of black and white squares of flint and a large arched 
window.  The hall was used not only by Trinity Gild but rented for 
meetings by other gilds and by the borough corporation (which by the 
1360s was employing a caretaker of the gildhall, who also served as 
bedeman, an office involving public announcement of the death of Gild 
members  this being an indicator of the close link of Gild and borough).  
Trinity Gild had a significant role in the life of the community, not only 
by representing the interests of most leading members of that 
community (the merchants), nor only by its traditional 
association with town government, but 
also by its management of the Common 
Staith, its provision of charitable services, its contributions to 
maintenance of public facilities (e.g. water 
conduits) and churches, and the availability of its treasury for 
commercial or public loans.
 
Holy Trinity Gildhall
(facade on the northwest corner
of the Saturday market),
the seat of medieval borough government.
photo © S. Alsford
For an artist's impression of how the
Guildhall might have looked when first
built, see 
here
Both Trinity Gild and the Bishop contributed to the construction of 
Lynn's defences, which were as much to control the access-points of 
traders into the town and to define the area of borough jurisdiction 
as to protect from attack.  The sea bank pre-existing the town 
provided a natural line of defence and was made more effective by 
digging a ditch on its outward-facing (east) side;  the ditch later 
became part of the canal system.  There is evidence for a lesser 
ditch on the townward side of the bank, although this may have been 
only to furnish soil to raise the bank.  This activity is suspected 
to have taken place in the context of the civil war at the close of 
the reign of King John, when Lynn appears to have experienced a 
direct threat.  There were also four wooden towers: two stood at 
the southern and northern ends of the Newland river bank (thus also 
guarding the entrances to the Purfleet 
and the Gay, respectively), 
and the other two likely at the northern and southern ends of the 
ditch/bank guarding the east-west road 
into Newland and the south-north road into South Lynn respectively;  
their date of creation is uncertain, although the 
Bishop's Bretask (the tower by the Gay) 
is heard of by 1270.
Royal grants of murage were obtained 
by Lynn in 1266, 1294, 1300 and 1339, the baronial wars doubtless providing 
the first impetus for upgrading defences to a 
stone 
wall.  Wall construction began on the eastern boundary of Newland, with 
a stone gate built where the east-west road and the wall intersected.  The 
question of boundary definition was another point on which town authorities 
and the Bishop  through his tenants of the adjacent manor of 
Gaywood  came into dispute.  The townsmen had used the wall to 
extend their boundary eastwards beyond the earlier line of the 
sea bank, in order to encompass a suburb which had arisen east 
of the bank.  The southern entrance to Lynn, through South Lynn, 
was likewise strengthened with a 
stone 
gate before 1319.  The South Gate 
and East Gate, possibly successors to 
bretasks on those sites (certainly in the late 1360s a connection is made 
in the borough records between the south gates and a South Bretask), had 
gatekeepers in the Late Middle 
Ages and were seen as the main entrances to the town;  
other gates lying 
between these two, probably built in the same period, were secondary 
points of access into the town, and were kept locked at night. The stone 
wall was not extended south from Newland, to protect central and South 
Lynn, until the post-medieval period.  Various of the watercourses 
already mentioned were part of the town's defensive system.  The 
River Gay was the town's northern boundary and defence;  a gatekeeper 
was less regularly employed by the borough for a gate guarding the 
bridge across the Gay, at Dowshill.